[Perf] Windows/x64: 188 Regressions from GC changes

[performanceautofiler]

[performanceautofiler]

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Reflection.Activator<EmptyClass>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
CreateInstanceType - Duration of single invocation	9.88 ns	11.70 ns	1.18	0.30	False
CreateInstanceGeneric - Duration of single invocation	13.90 ns	15.38 ns	1.11	0.30	False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Reflection.Activator<EmptyClass>*'

Payloads

Baseline
Compare

Histogram

System.Reflection.Activator<EmptyClass>.CreateInstanceType

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 11.69552542498745 > 10.187379429401396.
IsChangePoint: Marked as a change because one of 7/11/2022 4:59:47 AM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -9.590124738884416 (T) = (0 -11.191995884315995) / Math.Sqrt((0.24225495486883333 / (20)) + (0.15071316300474316 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.12105313722576878 = (9.98346600412933 - 11.191995884315995) / 9.98346600412933 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Reflection.Activator<EmptyClass>.CreateInstanceGeneric

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 15.375631980656722 > 14.629931041379773.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -8.253774149979632 (T) = (0 -15.778766822048107) / Math.Sqrt((0.4278614470929309 / (20)) + (0.44438670701497823 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.10412572504730795 = (14.290733803319402 - 15.778766822048107) / 14.290733803319402 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

### Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Tests.Perf_Type

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
GetTypeFromHandle - Duration of single invocation	0.00 ns	1.16 ns	∞	0.24	False	5.045927596696567	7.129995791570011	1.4130198372719078	Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_Type*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Type.GetTypeFromHandle

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 1.1590791388064645 > 0.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -51.85108822148905 (T) = (0 -1.1214864316906232) / Math.Sqrt((0 / (20)) + (0.01871252042985985 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -∞ = (0 - 1.1214864316906232) / 0 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Tests.Perf_Type.GetTypeFromHandle()
       mov       rax,[rcx+18]
       ret
; Total bytes of code 5

Compare Jit Disasm

; System.Tests.Perf_Type.GetTypeFromHandle()
       mov       rax,[rcx+18]
       ret
; Total bytes of code 5

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

[performanceautofiler]

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in Microsoft.Extensions.Primitives.StringSegmentBenchmark

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
SubString - Duration of single invocation	7.44 ns	8.96 ns	1.20	0.10	False	106.71583940896883	103.69171218647902	0.9716618710096033	Trace	Trace
GetValue - Duration of single invocation	1.23 ns	2.49 ns	2.03	0.09	False	44.77218785324801	40.72060909771108	0.909506795405733	Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'Microsoft.Extensions.Primitives.StringSegmentBenchmark*'

Payloads

Baseline
Compare

Histogram

Microsoft.Extensions.Primitives.StringSegmentBenchmark.SubString

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 8.959871575629547 > 7.829623778031409.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -31.3731979100491 (T) = (0 -9.564620137525528) / Math.Sqrt((0.016146926135456516 / (20)) + (0.11800191259247927 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.2516648012299394 = (7.641518822073548 - 9.564620137525528) / 7.641518822073548 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; Microsoft.Extensions.Primitives.StringSegmentBenchmark.SubString()
       sub       rsp,28
       add       rcx,18
       mov       r8,[rcx]
       test      r8,r8
       je        short 000000000000FAE1
       cmp       dword ptr [rcx+0C],5
       jb        short 000000000000FAE1
       mov       edx,[rcx+8]
       add       edx,3
       mov       rcx,r8
       mov       r8d,2
       cmp       [rcx],ecx
       add       rsp,28
       jmp       qword ptr [3360]
       mov       edx,3
       mov       r8d,2
       mov       r9d,1
       call      qword ptr [0B5E8]
       int       3
; Total bytes of code 73

; System.String.Substring(Int32, Int32)
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       mov       rdi,rcx
       mov       esi,edx
       test      esi,esi
       jl        near ptr 000000000000FC61
       mov       ecx,[rdi+8]
       cmp       ecx,esi
       jl        near ptr 000000000000FCBE
       test      r8d,r8d
       jl        near ptr 000000000000FD1B
       mov       eax,ecx
       sub       eax,r8d
       cmp       eax,esi
       jl        near ptr 000000000000FD78
       test      r8d,r8d
       je        short 000000000000FC4C
       test      esi,esi
       je        short 000000000000FC3C
       mov       ecx,r8d
       call      0
       mov       rbx,rax
       mov       r8d,[rbx+8]
       lea       rcx,[rbx+0C]
       mov       edx,esi
       lea       rdx,[rdi+rdx*2+0C]
       add       r8,r8
       call      qword ptr [0BE10]
       mov       rax,rbx
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       cmp       ecx,r8d
       jne       short 000000000000FC0E
       mov       rax,rdi
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       rax,1C360002028
       mov       rax,[rax]
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,163D
       mov       rdx,7FF861BE4000
       call      00000000000014A0
       mov       rdi,rax
       mov       ecx,0A50B
       mov       rdx,7FF861BE4000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [9030]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000004690
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,163D
       mov       rdx,7FF861BE4000
       call      00000000000014A0
       mov       rdi,rax
       mov       ecx,0A547
       mov       rdx,7FF861BE4000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [9030]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000004690
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,57
       mov       rdx,7FF861BE4000
       call      00000000000014A0
       mov       rdi,rax
       mov       ecx,0A1CF
       mov       rdx,7FF861BE4000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [9030]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000004690
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,57
       mov       rdx,7FF861BE4000
       call      00000000000014A0
       mov       rdi,rax
       mov       ecx,9B73
       mov       rdx,7FF861BE4000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [9030]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000004690
       int       3
; Total bytes of code 518

Compare Jit Disasm

; Microsoft.Extensions.Primitives.StringSegmentBenchmark.SubString()
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       add       rcx,18
       mov       rsi,[rcx]
       test      rsi,rsi
       je        short 000000000000FB19
       cmp       dword ptr [rcx+0C],5
       jb        short 000000000000FB19
       mov       edi,[rcx+8]
       add       edi,3
       mov       ecx,[rsi+8]
       mov       eax,ecx
       mov       edx,edi
       add       rdx,2
       cmp       rax,rdx
       jb        short 000000000000FB31
       cmp       ecx,2
       jne       short 000000000000FAE9
       mov       rax,rsi
       jmp       short 000000000000FB11
       mov       ecx,2
       call      0
       mov       rbx,rax
       mov       r8d,[rbx+8]
       lea       rcx,[rbx+0C]
       mov       edx,edi
       lea       rdx,[rsi+rdx*2+0C]
       add       r8,r8
       call      qword ptr [0BE10]
       mov       rax,rbx
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       edx,3
       mov       r8d,2
       mov       r9d,1
       call      qword ptr [0B5E8]
       int       3
       mov       rcx,rsi
       mov       edx,edi
       mov       r8d,2
       call      qword ptr [3378]
       int       3
; Total bytes of code 147

; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
       push      rdi
       push      rsi
       vzeroupper
       mov       rax,rcx
       sub       rax,rdx
       cmp       rax,r8
       jb        near ptr 000000000000FA5B
       mov       rax,rdx
       sub       rax,rcx
       cmp       rax,r8
       jb        near ptr 000000000000FA5B
       lea       rsi,[rdx+r8]
       lea       rdi,[rcx+r8]
       cmp       r8,10
       jbe       short 000000000000F996
       cmp       r8,40
       ja        short 000000000000F9C2
       vmovupd   xmm0,[rdx]
       vmovupd   [rcx],xmm0
       cmp       r8,20
       ja        near ptr 000000000000FA18
       vmovupd   xmm0,[rsi+0FFF0]
       vmovupd   [rdi+0FFF0],xmm0
       pop       rsi
       pop       rdi
       ret
       test      r8b,18
       jne       short 000000000000FA05
       test      r8b,4
       jne       near ptr 000000000000FA3B
       test      r8,r8
       je        short 000000000000F993
       movzx     edx,byte ptr [rdx]
       mov       [rcx],dl
       test      r8b,2
       je        short 000000000000F993
       movsx     r8,word ptr [rsi+0FFFE]
       mov       [rdi+0FFFE],r8w
       jmp       short 000000000000F993
       cmp       r8,800
       ja        near ptr 000000000000FA64
       mov       rax,r8
       shr       rax,6
       vmovdqu   ymm0,ymmword ptr [rdx]
       vmovdqu   ymmword ptr [rcx],ymm0
       vmovdqu   ymm0,ymmword ptr [rdx+20]
       vmovdqu   ymmword ptr [rcx+20],ymm0
       add       rcx,40
       add       rdx,40
       dec       rax
       jne       short 000000000000F9D6
       and       r8,3F
       cmp       r8,10
       ja        near ptr 000000000000F977
       jmp       short 000000000000FA4C
       mov       r8,[rdx]
       mov       [rcx],r8
       mov       rdx,[rsi+0FFF8]
       mov       [rdi+0FFF8],rdx
       jmp       near ptr 000000000000F993
       vmovupd   xmm0,[rdx+10]
       vmovupd   [rcx+10],xmm0
       cmp       r8,30
       jbe       near ptr 000000000000F989
       vmovupd   xmm0,[rdx+20]
       vmovupd   [rcx+20],xmm0
       jmp       near ptr 000000000000F989
       mov       r8d,[rdx]
       mov       [rcx],r8d
       mov       edx,[rsi+0FFFC]
       mov       [rdi+0FFFC],edx
       jmp       near ptr 000000000000F993
       vmovupd   xmm0,[rsi+0FFF0]
       vmovupd   [rdi+0FFF0],xmm0
       jmp       near ptr 000000000000F993
       cmp       rcx,rdx
       je        near ptr 000000000000F993
       pop       rsi
       pop       rdi
       jmp       qword ptr [0BE28]
; Total bytes of code 300

Microsoft.Extensions.Primitives.StringSegmentBenchmark.GetValue

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 2.4907923732486656 > 1.2840067155800157.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -33.99036885075571 (T) = (0 -2.692976506929134) / Math.Sqrt((0.033768120881384894 / (20)) + (0.030515161455933103 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -1.6660549378238292 = (1.0100979048568592 - 2.692976506929134) / 1.0100979048568592 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; Microsoft.Extensions.Primitives.StringSegmentBenchmark.GetValue()
       push      rax
       add       rcx,18
       mov       [rsp],rcx
       mov       rdx,[rcx]
       test      rdx,rdx
       jne       short 000000000000FB48
       xor       eax,eax
       add       rsp,8
       ret
       mov       rcx,rdx
       mov       r8,[rsp]
       mov       edx,[r8+8]
       mov       r8d,[r8+0C]
       cmp       [rcx],ecx
       add       rsp,8
       jmp       qword ptr [3360]
; Total bytes of code 51

; System.String.Substring(Int32, Int32)
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       mov       rdi,rcx
       mov       esi,edx
       test      esi,esi
       jl        near ptr 000000000000F981
       mov       ecx,[rdi+8]
       cmp       ecx,esi
       jl        near ptr 000000000000F9DE
       test      r8d,r8d
       jl        near ptr 000000000000FA3B
       mov       eax,ecx
       sub       eax,r8d
       cmp       eax,esi
       jl        near ptr 000000000000FA98
       test      r8d,r8d
       je        short 000000000000F96C
       test      esi,esi
       je        short 000000000000F95C
       mov       ecx,r8d
       call      0
       mov       rbx,rax
       mov       r8d,[rbx+8]
       lea       rcx,[rbx+0C]
       mov       edx,esi
       lea       rdx,[rdi+rdx*2+0C]
       add       r8,r8
       call      qword ptr [0BE10]
       mov       rax,rbx
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       cmp       ecx,r8d
       jne       short 000000000000F92E
       mov       rax,rdi
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       rax,2162F002028
       mov       rax,[rax]
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,163D
       mov       rdx,7FF8D0E34000
       call      00000000000014A0
       mov       rdi,rax
       mov       ecx,0A50B
       mov       rdx,7FF8D0E34000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [77E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000004690
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,163D
       mov       rdx,7FF8D0E34000
       call      00000000000014A0
       mov       rdi,rax
       mov       ecx,0A547
       mov       rdx,7FF8D0E34000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [77E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000004690
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,57
       mov       rdx,7FF8D0E34000
       call      00000000000014A0
       mov       rdi,rax
       mov       ecx,0A1CF
       mov       rdx,7FF8D0E34000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [77E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000004690
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,57
       mov       rdx,7FF8D0E34000
       call      00000000000014A0
       mov       rdi,rax
       mov       ecx,9B73
       mov       rdx,7FF8D0E34000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [77E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000004690
       int       3
; Total bytes of code 518

Compare Jit Disasm

; Microsoft.Extensions.Primitives.StringSegmentBenchmark.GetValue()
       push      rax
       add       rcx,18
       mov       [rsp],rcx
       mov       rdx,[rcx]
       test      rdx,rdx
       jne       short 000000000000F9C8
       xor       eax,eax
       add       rsp,8
       ret
       mov       rcx,rdx
       mov       r8,[rsp]
       mov       edx,[r8+8]
       mov       r8d,[r8+0C]
       cmp       [rcx],ecx
       add       rsp,8
       jmp       qword ptr [3360]
; Total bytes of code 51

; System.String.Substring(Int32, Int32)
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       mov       rsi,rcx
       mov       edi,edx
       mov       eax,edi
       mov       ecx,r8d
       add       rax,rcx
       mov       ecx,[rsi+8]
       mov       edx,ecx
       cmp       rax,rdx
       ja        short 000000000000F966
       test      r8d,r8d
       jne       short 000000000000F928
       mov       rax,19F5B402028
       mov       rax,[rax]
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       cmp       ecx,r8d
       jne       short 000000000000F938
       mov       rax,rsi
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       ecx,r8d
       call      0
       mov       rbx,rax
       mov       r8d,[rbx+8]
       lea       rcx,[rbx+0C]
       mov       edx,edi
       lea       rdx,[rsi+rdx*2+0C]
       add       r8,r8
       call      qword ptr [0BE10]
       mov       rax,rbx
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       rcx,rsi
       mov       edx,edi
       call      qword ptr [3378]
       int       3
; Total bytes of code 130

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

[performanceautofiler]

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Text.Tests.Perf_StringBuilder

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ctor_string - Duration of single invocation	12.66 μs	13.60 μs	1.07	0.00	False	77196.85812469317	85892.55499153976	1.1126431447870684	Trace	Trace
ToString_MultipleSegments - Duration of single invocation	17.90 μs	20.23 μs	1.13	0.00	False				Trace	Trace
ToString_SingleSegment - Duration of single invocation	19.99 ns	21.55 ns	1.08	0.10	False	165.4446324497086	176.55788519460774	1.0671720356251346	Trace	Trace
ctor_capacity - Duration of single invocation	5.64 μs	6.65 μs	1.18	0.02	False				Trace	Trace
ToString_SingleSegment - Duration of single invocation	17.46 μs	19.52 μs	1.12	0.01	False	76311.18881118881	88518.3299389002	1.159965285797272	Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Text.Tests.Perf_StringBuilder*'

Payloads

Baseline
Compare

Histogram

System.Text.Tests.Perf_StringBuilder.ctor_string(length: 100000)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 13.595019322653178 > 13.35945507770302.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -31.058546171960497 (T) = (0 -13690.99464511575) / Math.Sqrt((10692.615067473482 / (20)) + (21455.909721610522 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.08019530044747622 = (12674.554906362015 - 13690.99464511575) / 12674.554906362015 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Text.Tests.Perf_StringBuilder.ctor_string(Int32)
       push      rdi
       push      rsi
       sub       rsp,28
       cmp       edx,64
       je        short 000000000000F591
       mov       rsi,[rcx+8]
       jmp       short 000000000000F595
       mov       rsi,[rcx+10]
       mov       rcx,offset MT_System.Text.StringBuilder
       call      000000000000C390
       mov       rdi,rax
       mov       rdx,rsi
       test      rdx,rdx
       jne       short 000000000000F5B6
       xor       edx,edx
       xor       r9d,r9d
       jmp       short 000000000000F5BA
       mov       r9d,[rdx+8]
       mov       dword ptr [rsp+20],10
       mov       rcx,rdi
       xor       r8d,r8d
       call      qword ptr [50D8]
       mov       rax,rdi
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 88

; System.Text.StringBuilder..ctor(System.String, Int32, Int32, Int32)
       push      r14
       push      rdi
       push      rsi
       push      rbp
       push      rbx
       sub       rsp,20
       mov       rbx,rcx
       mov       rdi,rdx
       mov       ebp,r8d
       mov       esi,r9d
       mov       ecx,[rsp+70]
       test      ecx,ecx
       jl        near ptr 000000000000F74D
       test      esi,esi
       jl        near ptr 000000000000F7B6
       test      ebp,ebp
       jl        near ptr 000000000000F81F
       test      rdi,rdi
       je        near ptr 000000000000F720
       mov       edx,[rdi+8]
       sub       edx,esi
       cmp       edx,ebp
       jl        near ptr 000000000000F888
       mov       dword ptr [rbx+20],7FFFFFFF
       test      ecx,ecx
       je        near ptr 000000000000F732
       cmp       ecx,esi
       jl        short 000000000000F712
       mov       edx,ecx
       mov       ecx,edx
       cmp       ecx,400
       jge       short 000000000000F716
       movsxd    rdx,ecx
       mov       rcx,offset MT_System.Char[]
       call      000000000000C4B0
       lea       rcx,[rbx+8]
       mov       rdx,rax
       call      0000000000000010
       mov       [rbx+18],esi
       mov       r8d,ebp
       mov       ecx,esi
       add       r8,rcx
       mov       ecx,[rdi+8]
       cmp       r8,rcx
       ja        near ptr 000000000000F87C
       mov       r8d,ebp
       lea       rdx,[rdi+r8*2+0C]
       mov       r8,[rbx+8]
       test      r8,r8
       je        short 000000000000F73C
       lea       rcx,[r8+10]
       mov       r14d,[r8+8]
       cmp       esi,r14d
       ja        short 000000000000F746
       mov       r8d,esi
       add       r8,r8
       call      qword ptr [0BE10]
       nop
       add       rsp,20
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       pop       r14
       ret
       mov       edx,esi
       jmp       short 000000000000F69D
       xor       edx,edx
       call      qword ptr [3858]
       jmp       short 000000000000F6B9
       mov       rdx,1769A802028
       mov       rdi,[rdx]
       jmp       near ptr 000000000000F67B
       mov       ecx,10
       jmp       near ptr 000000000000F697
       xor       ecx,ecx
       xor       r14d,r14d
       cmp       esi,r14d
       jbe       short 000000000000F6FA
       call      qword ptr [0B4B0]
       int       3
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rdi,rax
       mov       ecx,133C6
       mov       rdx,7FFBA9304000
       call      00000000000014A0
       mov       rbx,rax
       mov       ecx,9FF3
       mov       rdx,7FFBA9304000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [7030]
       mov       rcx,rax
       mov       rdx,rbx
       call      qword ptr [7060]
       mov       r8,rax
       mov       rdx,rbx
       mov       rcx,rdi
       call      qword ptr [1828]
       mov       rcx,rdi
       call      0000000000004690
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rbp,rax
       mov       ecx,57
       mov       rdx,7FFBA9304000
       call      00000000000014A0
       mov       r14,rax
       mov       ecx,9FAD
       mov       rdx,7FFBA9304000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [7030]
       mov       rcx,rax
       mov       rdx,r14
       call      qword ptr [7060]
       mov       r8,rax
       mov       rdx,r14
       mov       rcx,rbp
       call      qword ptr [1828]
       mov       rcx,rbp
       call      0000000000004690
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,163D
       mov       rdx,7FFBA9304000
       call      00000000000014A0
       mov       rdi,rax
       mov       ecx,0A50B
       mov       rdx,7FFBA9304000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [7030]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000004690
       mov       ecx,21
       call      qword ptr [0B7E0]
       int       3
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,57
       mov       rdx,7FFBA9304000
       call      00000000000014A0
       mov       rdi,rax
       mov       ecx,9B73
       mov       rdx,7FFBA9304000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [7030]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000004690
       int       3
; Total bytes of code 678

Compare Jit Disasm

; System.Text.Tests.Perf_StringBuilder.ctor_string(Int32)
       push      rdi
       push      rsi
       sub       rsp,28
       cmp       edx,64
       je        short 000000000000F591
       mov       rsi,[rcx+8]
       jmp       short 000000000000F595
       mov       rsi,[rcx+10]
       mov       rcx,offset MT_System.Text.StringBuilder
       call      0000000000002AE0
       mov       rdi,rax
       mov       rdx,rsi
       test      rdx,rdx
       jne       short 000000000000F5B6
       xor       edx,edx
       xor       r9d,r9d
       jmp       short 000000000000F5BA
       mov       r9d,[rdx+8]
       mov       dword ptr [rsp+20],10
       mov       rcx,rdi
       xor       r8d,r8d
       call      qword ptr [50D8]
       mov       rax,rdi
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 88

; System.Text.StringBuilder..ctor(System.String, Int32, Int32, Int32)
       push      r14
       push      rdi
       push      rsi
       push      rbp
       push      rbx
       sub       rsp,20
       mov       rbx,rcx
       mov       rdi,rdx
       mov       ebp,r8d
       mov       esi,r9d
       mov       ecx,[rsp+70]
       test      ecx,ecx
       jl        near ptr 000000000000F74D
       test      esi,esi
       jl        near ptr 000000000000F7B6
       test      ebp,ebp
       jl        near ptr 000000000000F81F
       test      rdi,rdi
       je        near ptr 000000000000F720
       mov       edx,[rdi+8]
       sub       edx,esi
       cmp       edx,ebp
       jl        near ptr 000000000000F888
       mov       dword ptr [rbx+20],7FFFFFFF
       test      ecx,ecx
       je        near ptr 000000000000F732
       cmp       ecx,esi
       jl        short 000000000000F712
       mov       edx,ecx
       mov       ecx,edx
       cmp       ecx,400
       jge       short 000000000000F716
       movsxd    rdx,ecx
       mov       rcx,offset MT_System.Char[]
       call      0000000000002C00
       lea       rcx,[rbx+8]
       mov       rdx,rax
       call      0000000000000010
       mov       [rbx+18],esi
       mov       r8d,ebp
       mov       ecx,esi
       add       r8,rcx
       mov       ecx,[rdi+8]
       cmp       r8,rcx
       ja        near ptr 000000000000F87C
       mov       r8d,ebp
       lea       rdx,[rdi+r8*2+0C]
       mov       r8,[rbx+8]
       test      r8,r8
       je        short 000000000000F73C
       lea       rcx,[r8+10]
       mov       r14d,[r8+8]
       cmp       esi,r14d
       ja        short 000000000000F746
       mov       r8d,esi
       add       r8,r8
       call      qword ptr [0BE10]
       nop
       add       rsp,20
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       pop       r14
       ret
       mov       edx,esi
       jmp       short 000000000000F69D
       xor       edx,edx
       call      qword ptr [3888]
       jmp       short 000000000000F6B9
       mov       rdx,1D400002028
       mov       rdi,[rdx]
       jmp       near ptr 000000000000F67B
       mov       ecx,10
       jmp       near ptr 000000000000F697
       xor       ecx,ecx
       xor       r14d,r14d
       cmp       esi,r14d
       jbe       short 000000000000F6FA
       call      qword ptr [0B4B0]
       int       3
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      0000000000002AE0
       mov       rdi,rax
       mov       ecx,13438
       mov       rdx,7FFEFA904000
       call      000000000000A140
       mov       rbx,rax
       mov       ecx,9FF3
       mov       rdx,7FFEFA904000
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [7030]
       mov       rcx,rax
       mov       rdx,rbx
       call      qword ptr [7060]
       mov       r8,rax
       mov       rdx,rbx
       mov       rcx,rdi
       call      qword ptr [1828]
       mov       rcx,rdi
       call      0000000000002B00
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      0000000000002AE0
       mov       rbp,rax
       mov       ecx,57
       mov       rdx,7FFEFA904000
       call      000000000000A140
       mov       r14,rax
       mov       ecx,9FAD
       mov       rdx,7FFEFA904000
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [7030]
       mov       rcx,rax
       mov       rdx,r14
       call      qword ptr [7060]
       mov       r8,rax
       mov       rdx,r14
       mov       rcx,rbp
       call      qword ptr [1828]
       mov       rcx,rbp
       call      0000000000002B00
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      0000000000002AE0
       mov       rsi,rax
       mov       ecx,163D
       mov       rdx,7FFEFA904000
       call      000000000000A140
       mov       rdi,rax
       mov       ecx,0A50B
       mov       rdx,7FFEFA904000
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [7030]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000002B00
       mov       ecx,21
       call      qword ptr [0B7E0]
       int       3
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      0000000000002AE0
       mov       rsi,rax
       mov       ecx,57
       mov       rdx,7FFEFA904000
       call      000000000000A140
       mov       rdi,rax
       mov       ecx,9B73
       mov       rdx,7FFEFA904000
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [7030]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000002B00
       int       3
; Total bytes of code 678

System.Text.Tests.Perf_StringBuilder.ToString_MultipleSegments(length: 100000)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 20.230884065582757 > 18.865677769793727.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -48.806108192098336 (T) = (0 -20159.389230137567) / Math.Sqrt((11690.582266945079 / (20)) + (57894.01518532321 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.1224987470609612 = (17959.386843790162 - 20159.389230137567) / 17959.386843790162 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Text.Tests.Perf_StringBuilder.ToString_MultipleSegments(Int32)
       cmp       edx,64
       je        short 000000000000F6AB
       mov       rcx,[rcx+30]
       jmp       short 000000000000F6AF
       mov       rcx,[rcx+28]
       mov       rax,[rcx]
       mov       rax,[rax+40]
       jmp       qword ptr [rax+8]
; Total bytes of code 26

Compare Jit Disasm

; System.Text.Tests.Perf_StringBuilder.ToString_MultipleSegments(Int32)
       cmp       edx,64
       je        short 000000000000F6AB
       mov       rcx,[rcx+30]
       jmp       short 000000000000F6AF
       mov       rcx,[rcx+28]
       mov       rax,[rcx]
       mov       rax,[rax+40]
       jmp       qword ptr [rax+8]
; Total bytes of code 26

System.Text.Tests.Perf_StringBuilder.ToString_SingleSegment(length: 100)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 21.54589796172715 > 20.373563373235378.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -16.442533335947903 (T) = (0 -21.744141077962475) / Math.Sqrt((0.19954438060651367 / (17)) + (0.1843188896116171 / (40))) is less than -2.0040447832881556 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (17) + (40) - 2, .025) and -0.10702575817320856 = (19.64194682682381 - 21.744141077962475) / 19.64194682682381 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Text.Tests.Perf_StringBuilder.ToString_SingleSegment(Int32)
       cmp       edx,64
       je        short 000000000000F4DB
       mov       rcx,[rcx+20]
       jmp       short 000000000000F4DF
       mov       rcx,[rcx+18]
       mov       rax,[rcx]
       mov       rax,[rax+40]
       jmp       qword ptr [rax+8]
; Total bytes of code 26

Compare Jit Disasm

; System.Text.Tests.Perf_StringBuilder.ToString_SingleSegment(Int32)
       cmp       edx,64
       je        short 000000000000F4DB
       mov       rcx,[rcx+20]
       jmp       short 000000000000F4DF
       mov       rcx,[rcx+18]
       mov       rax,[rcx]
       mov       rax,[rax+40]
       jmp       qword ptr [rax+8]
; Total bytes of code 26

System.Text.Tests.Perf_StringBuilder.ctor_capacity(length: 100000)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 6.6549921288853175 > 5.876136269339164.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -35.12141632343292 (T) = (0 -6682.214721738113) / Math.Sqrt((9005.794156178663 / (20)) + (18791.84932039333 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.18966670468439126 = (5616.879665057828 - 6682.214721738113) / 5616.879665057828 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Text.Tests.Perf_StringBuilder.ctor_capacity(Int32)
       push      rdi
       push      rsi
       sub       rsp,28
       mov       esi,edx
       mov       rcx,offset MT_System.Text.StringBuilder
       call      000000000000C390
       mov       rdi,rax
       mov       rcx,rdi
       mov       edx,esi
       mov       r8d,7FFFFFFF
       call      qword ptr [50F0]
       mov       rax,rdi
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 53

; System.Text.StringBuilder..ctor(Int32, Int32)
       push      rdi
       push      rsi
       sub       rsp,28
       mov       rsi,rcx
       cmp       edx,r8d
       jg        short 000000000000F463
       test      r8d,r8d
       jle       near ptr 000000000000F4C0
       test      edx,edx
       jl        near ptr 000000000000F51D
       test      edx,edx
       je        short 000000000000F445
       mov       [rsi+20],r8d
       cmp       edx,400
       jge       short 000000000000F452
       movsxd    rdx,edx
       mov       rcx,offset MT_System.Char[]
       call      000000000000C4B0
       lea       rcx,[rsi+8]
       mov       rdx,rax
       call      0000000000000010
       nop
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       cmp       r8d,10
       jl        short 000000000000F45E
       mov       edx,10
       jmp       short 000000000000F413
       mov       ecx,edx
       xor       edx,edx
       call      qword ptr [3078]
       jmp       short 000000000000F431
       mov       edx,r8d
       jmp       short 000000000000F450
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,133C6
       mov       rdx,7FF96F1F4000
       call      00000000000014A0
       mov       rdi,rax
       mov       ecx,94A7
       mov       rdx,7FF96F1F4000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [57E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000004690
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,1780B
       mov       rdx,7FF96F1F4000
       call      00000000000014A0
       mov       rdi,rax
       mov       ecx,0A4C3
       mov       rdx,7FF96F1F4000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [57E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000004690
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,133C6
       mov       rdx,7FF96F1F4000
       call      00000000000014A0
       mov       rdi,rax
       mov       ecx,9FF3
       mov       rdx,7FF96F1F4000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [57E0]
       mov       rcx,rax
       mov       rdx,rdi
       call      qword ptr [5810]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000004690
       int       3
; Total bytes of code 407

Compare Jit Disasm

; System.Text.Tests.Perf_StringBuilder.ctor_capacity(Int32)
       push      rdi
       push      rsi
       sub       rsp,28
       mov       esi,edx
       mov       rcx,offset MT_System.Text.StringBuilder
       call      0000000000002AE0
       mov       rdi,rax
       mov       rcx,rdi
       mov       edx,esi
       mov       r8d,7FFFFFFF
       call      qword ptr [50F0]
       mov       rax,rdi
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 53

; System.Text.StringBuilder..ctor(Int32, Int32)
       push      rdi
       push      rsi
       sub       rsp,28
       mov       rsi,rcx
       cmp       edx,r8d
       jg        short 000000000000F463
       test      r8d,r8d
       jle       near ptr 000000000000F4C0
       test      edx,edx
       jl        near ptr 000000000000F51D
       test      edx,edx
       je        short 000000000000F445
       mov       [rsi+20],r8d
       cmp       edx,400
       jge       short 000000000000F452
       movsxd    rdx,edx
       mov       rcx,offset MT_System.Char[]
       call      0000000000002C00
       lea       rcx,[rsi+8]
       mov       rdx,rax
       call      0000000000000010
       nop
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       cmp       r8d,10
       jl        short 000000000000F45E
       mov       edx,10
       jmp       short 000000000000F413
       mov       ecx,edx
       xor       edx,edx
       call      qword ptr [30A8]
       jmp       short 000000000000F431
       mov       edx,r8d
       jmp       short 000000000000F450
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      0000000000002AE0
       mov       rsi,rax
       mov       ecx,13438
       mov       rdx,7FFE65654000
       call      000000000000A140
       mov       rdi,rax
       mov       ecx,94A7
       mov       rdx,7FFE65654000
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [57E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000002B00
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      0000000000002AE0
       mov       rsi,rax
       mov       ecx,1787D
       mov       rdx,7FFE65654000
       call      000000000000A140
       mov       rdi,rax
       mov       ecx,0A4C3
       mov       rdx,7FFE65654000
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [57E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000002B00
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      0000000000002AE0
       mov       rsi,rax
       mov       ecx,13438
       mov       rdx,7FFE65654000
       call      000000000000A140
       mov       rdi,rax
       mov       ecx,9FF3
       mov       rdx,7FFE65654000
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [57E0]
       mov       rcx,rax
       mov       rdx,rdi
       call      qword ptr [5810]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000002B00
       int       3
; Total bytes of code 407

System.Text.Tests.Perf_StringBuilder.ToString_SingleSegment(length: 100000)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 19.51956369731801 > 18.35949961235687.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -44.346632808796635 (T) = (0 -19703.436998307712) / Math.Sqrt((17067.166063658922 / (20)) + (62431.90843076265 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.12433617756790508 = (17524.50680803403 - 19703.436998307712) / 17524.50680803403 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Text.Tests.Perf_StringBuilder.ToString_SingleSegment(Int32)
       cmp       edx,64
       je        short 000000000000F6BB
       mov       rcx,[rcx+20]
       jmp       short 000000000000F6BF
       mov       rcx,[rcx+18]
       mov       rax,[rcx]
       mov       rax,[rax+40]
       jmp       qword ptr [rax+8]
; Total bytes of code 26

Compare Jit Disasm

; System.Text.Tests.Perf_StringBuilder.ToString_SingleSegment(Int32)
       cmp       edx,64
       je        short 000000000000F6BB
       mov       rcx,[rcx+20]
       jmp       short 000000000000F6BF
       mov       rcx,[rcx+18]
       mov       rax,[rcx]
       mov       rax,[rax+40]
       jmp       qword ptr [rax+8]
; Total bytes of code 26

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

[performanceautofiler]

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Tests.Perf_Enum

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
GetName - Duration of single invocation	13.79 ns	16.44 ns	1.19	0.30	False				Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_Enum*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Enum.GetName

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 16.435826842842935 > 14.705141493681714.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -11.962059344569935 (T) = (0 -17.005653170505813) / Math.Sqrt((0.457129861104052 / (20)) + (0.6075818458048562 / (39))) is less than -2.0024654592901125 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (39) - 2, .025) and -0.15996453046556997 = (14.660494113281487 - 17.005653170505813) / 14.660494113281487 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Tests.Perf_Enum.GetName()
       push      rdi
       push      rsi
       sub       rsp,28
       mov       esi,[rcx+0C]
       mov       rcx,offset MT_System.Tests.Perf_Enum+Colors
       call      000000000000D240
       mov       rdi,rax
       mov       ecx,esi
       call      qword ptr [17F8]
       mov       rsi,rax
       mov       rcx,rdi
       mov       edx,1
       call      qword ptr [1540]
       mov       rdi,rax
       mov       rcx,[rdi+8]
       mov       r8d,[rcx+8]
       add       rcx,10
       cmp       r8d,20
       jg        short 000000000000FE38
       mov       rdx,rsi
       call      qword ptr [1600]
       test      eax,eax
       jl        short 000000000000FE4D
       mov       rdx,[rdi+10]
       cmp       eax,[rdx+8]
       jae       short 000000000000FE51
       mov       eax,eax
       mov       rax,[rdx+rax*8+10]
       jmp       short 000000000000FE46
       mov       edx,r8d
       mov       r8,rsi
       call      qword ptr [3C00]
       jmp       short 000000000000FE22
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       xor       eax,eax
       jmp       short 000000000000FE46
       call      0000000000006930
       int       3
; Total bytes of code 135

; System.Enum.ToUInt64[[System.Tests.Perf_Enum+Colors, MicroBenchmarks]](Colors)
       push      rsi
       sub       rsp,20
       mov       [rsp+30],ecx
       mov       rcx,offset MT_System.Tests.Perf_Enum+Colors
       call      000000000000D240
       mov       rcx,rax
       call      qword ptr [8C00]
       add       eax,0FFFFFFFD
       cmp       eax,9
       ja        short 000000000000F60C
       mov       eax,eax
       lea       rcx,[0F650]
       mov       ecx,[rcx+rax*4]
       lea       rdx,[0F579]
       add       rcx,rdx
       jmp       rcx
       movsx     rax,byte ptr [rsp+30]
       cdqe
       jmp       short 000000000000F606
       movzx     eax,byte ptr [rsp+30]
       jmp       short 000000000000F606
       cmp       byte ptr [rsp+30],0
       jne       short 000000000000F5CD
       xor       eax,eax
       jmp       short 000000000000F5D2
       mov       eax,1
       jmp       short 000000000000F606
       movsx     rax,word ptr [rsp+30]
       cdqe
       jmp       short 000000000000F606
       movzx     eax,word ptr [rsp+30]
       jmp       short 000000000000F606
       movzx     eax,word ptr [rsp+30]
       jmp       short 000000000000F606
       mov       eax,[rsp+30]
       jmp       short 000000000000F606
       mov       eax,[rsp+30]
       cdqe
       jmp       short 000000000000F606
       mov       rax,[rsp+30]
       jmp       short 000000000000F606
       mov       rax,[rsp+30]
       add       rsp,20
       pop       rsi
       ret
       mov       rcx,offset MT_System.InvalidOperationException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,0DCA9
       mov       rdx,7FFEC9714000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [3030]
       mov       rdx,rax
       mov       rcx,rsi
       call      qword ptr [0D2B8]
       mov       rcx,rsi
       call      0000000000004690
       int       3
; Total bytes of code 224

; System.Enum.GetEnumInfo(System.RuntimeType, Boolean)
       push      rbp
       push      r15
       push      r14
       push      r13
       push      r12
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,0A8
       vzeroupper
       lea       rbp,[rsp+0E0]
       vxorps    xmm4,xmm4,xmm4
       vmovdqa   xmmword ptr [rbp+0FFB0],xmm4
       xor       esi,esi
       mov       [rbp+0FFC0],rsi
       mov       rsi,rcx
       mov       edi,edx
       lea       rcx,[rbp+0FF50]
       mov       rdx,r10
       call      00000000000042A0
       mov       rbx,rax
       mov       rcx,rsp
       mov       [rbp+0FF70],rcx
       mov       rcx,rbp
       mov       [rbp+0FF80],rcx
       mov       rcx,[rsi+10]
       test      rcx,rcx
       je        short 000000000000FA56
       mov       rcx,[rcx]
       test      rcx,rcx
       je        short 000000000000FA51
       mov       r14,[rcx+78]
       test      r14,r14
       je        short 000000000000FA21
       mov       rcx,offset MT_System.Enum+EnumInfo
       cmp       [r14],rcx
       je        short 000000000000FA21
       xor       r14d,r14d
       test      r14,r14
       je        near ptr 000000000000FB31
       test      dil,dil
       je        short 000000000000FA3A
       cmp       qword ptr [r14+10],0
       je        near ptr 000000000000FB31
       mov       rax,r14
       add       rsp,0A8
       pop       rbx
       pop       rsi
       pop       rdi
       pop       r12
       pop       r13
       pop       r14
       pop       r15
       pop       rbp
       ret
       xor       r14d,r14d
       jmp       short 000000000000FA0A
       xor       ecx,ecx
       jmp       short 000000000000FA01
       mov       eax,1
       mov       [rbp+0FF90],rcx
       mov       [rbp+0FF98],r9
       lea       rcx,[rbp+0FF90]
       mov       r9d,eax
       mov       rax,offset MD_System.Enum.GetEnumValuesAndNames(System.Runtime.CompilerServices.QCallTypeHandle, System.Runtime.CompilerServices.ObjectHandleOnStack, System.Runtime.CompilerServices.ObjectHandleOnStack, BOOL)
       mov       [rbp+0FF60],rax
       lea       rax,[0FAA2]
       mov       [rbp+0FF78],rax
       lea       rax,[rbp+0FF50]
       mov       [rbx+10],rax
       mov       byte ptr [rbx+0C],0
       call      qword ptr [9898]
       mov       byte ptr [rbx+0C],1
       cmp       dword ptr [5D3C],0
       je        short 000000000000FAB5
       call      qword ptr [8368]
       mov       rcx,[rbp+0FF58]
       mov       [rbx+10],rcx
       mov       rcx,offset MT_System.FlagsAttribute
       call      000000000000D240
       mov       rdx,rax
       mov       rcx,[rbp+10]
       xor       r8d,r8d
       call      qword ptr [89C0]
       mov       r14d,eax
       mov       rcx,offset MT_System.Enum+EnumInfo
       call      000000000000C390
       mov       rsi,rax
       mov       rcx,rsi
       mov       edx,r14d
       mov       r8,[rbp+0FFC0]
       mov       r9,[rbp+0FFB8]
       call      qword ptr [15D0]
       mov       r14,rsi
       mov       rsi,[rbp+10]
       mov       rcx,[rsi+10]
       test      rcx,rcx
       je        short 000000000000FB7A
       mov       rax,[rcx]
       test      rax,rax
       je        short 000000000000FB7A
       lea       rcx,[rax+78]
       mov       rdx,r14
       call      0000000000000010
       jmp       near ptr 000000000000FA3A
       xor       ecx,ecx
       mov       [rbp+0FFC0],rcx
       mov       [rbp+0FFB8],rcx
       mov       [rbp+10],rsi
       mov       [rbp+0FFB0],rsi
       vxorps    xmm0,xmm0,xmm0
       vmovupd   [rbp+0FFA0],xmm0
       lea       rcx,[rbp+0FFA0]
       lea       rdx,[rbp+0FFB0]
       call      qword ptr [3318]
       lea       rdx,[rbp+0FFC0]
       lea       r8,[rbp+0FFB8]
       mov       rcx,[rbp+0FFA0]
       mov       r9,[rbp+0FFA8]
       test      dil,dil
       jne       near ptr 000000000000FA5A
       xor       eax,eax
       jmp       near ptr 000000000000FA5F
       mov       rcx,rsi
       call      qword ptr [72B8]
       jmp       short 000000000000FB20
; Total bytes of code 485

; System.SpanHelpers.IndexOf[[System.UInt64, System.Private.CoreLib]](UInt64 ByRef, UInt64, Int32)
       xor       r9d,r9d
       cmp       r8d,8
       jge       short 000000000000FD33
       cmp       r8d,4
       jl        short 000000000000FD09
       add       r8d,0FFFFFFFC
       mov       rax,[rcx+r9*8]
       cmp       rdx,rax
       je        short 000000000000FD1B
       mov       rax,[rcx+r9*8+8]
       cmp       rdx,rax
       je        short 000000000000FD2D
       mov       rax,[rcx+r9*8+10]
       cmp       rdx,rax
       jne       short 000000000000FCF5
       lea       eax,[r9+2]
       ret
       mov       rax,[rcx+r9*8+18]
       cmp       rdx,rax
       jne       short 000000000000FD05
       lea       eax,[r9+3]
       jmp       short 000000000000FCF4
       add       r9,4
       test      r8d,r8d
       jle       near ptr 000000000000FD95
       mov       rax,[rcx+r9*8]
       cmp       rdx,rax
       jne       short 000000000000FD20
       mov       eax,r9d
       jmp       short 000000000000FCF4
       inc       r9
       dec       r8d
       test      r8d,r8d
       jle       short 000000000000FD95
       jmp       short 000000000000FD12
       lea       eax,[r9+1]
       jmp       short 000000000000FCF4
       add       r8d,0FFFFFFF8
       mov       rax,[rcx+r9*8]
       cmp       rdx,rax
       je        short 000000000000FD1B
       mov       rax,[rcx+r9*8+8]
       cmp       rdx,rax
       je        short 000000000000FD2D
       mov       rax,[rcx+r9*8+10]
       cmp       rdx,rax
       je        short 000000000000FCF0
       mov       rax,[rcx+r9*8+18]
       cmp       rdx,rax
       je        short 000000000000FCFF
       mov       rax,[rcx+r9*8+20]
       cmp       rdx,rax
       je        short 000000000000FD9B
       mov       rax,[rcx+r9*8+28]
       cmp       rdx,rax
       je        short 000000000000FDA4
       mov       rax,[rcx+r9*8+30]
       cmp       rdx,rax
       je        short 000000000000FDAD
       mov       rax,[rcx+r9*8+38]
       cmp       rdx,rax
       je        short 000000000000FDB6
       add       r9,8
       cmp       r8d,8
       jge       short 000000000000FD33
       jmp       near ptr 000000000000FCC9
       mov       eax,0FFFFFFFF
       ret
       lea       eax,[r9+4]
       jmp       near ptr 000000000000FCF4
       lea       eax,[r9+5]
       jmp       near ptr 000000000000FCF4
       lea       eax,[r9+6]
       jmp       near ptr 000000000000FCF4
       lea       eax,[r9+7]
       jmp       near ptr 000000000000FCF4
; Total bytes of code 255

Compare Jit Disasm

; System.Tests.Perf_Enum.GetName()
       push      rdi
       push      rsi
       sub       rsp,28
       mov       esi,[rcx+0C]
       mov       rcx,offset MT_System.Tests.Perf_Enum+Colors
       call      0000000000005E90
       mov       rdi,rax
       mov       ecx,esi
       call      qword ptr [17F8]
       mov       rsi,rax
       mov       rcx,rdi
       mov       edx,1
       call      qword ptr [1540]
       mov       rdi,rax
       mov       rcx,[rdi+8]
       mov       r8d,[rcx+8]
       add       rcx,10
       cmp       r8d,20
       jg        short 000000000000FE38
       mov       rdx,rsi
       call      qword ptr [1600]
       test      eax,eax
       jl        short 000000000000FE4D
       mov       rdx,[rdi+10]
       cmp       eax,[rdx+8]
       jae       short 000000000000FE51
       mov       eax,eax
       mov       rax,[rdx+rax*8+10]
       jmp       short 000000000000FE46
       mov       edx,r8d
       mov       r8,rsi
       call      qword ptr [3C00]
       jmp       short 000000000000FE22
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       xor       eax,eax
       jmp       short 000000000000FE46
       call      000000000000AB50
       int       3
; Total bytes of code 135

; System.Enum.ToUInt64[[System.Tests.Perf_Enum+Colors, MicroBenchmarks]](Colors)
       push      rsi
       sub       rsp,20
       mov       [rsp+30],ecx
       mov       rcx,offset MT_System.Tests.Perf_Enum+Colors
       call      0000000000005E90
       mov       rcx,rax
       call      qword ptr [8C30]
       add       eax,0FFFFFFFD
       cmp       eax,9
       ja        short 000000000000F60C
       mov       eax,eax
       lea       rcx,[0F650]
       mov       ecx,[rcx+rax*4]
       lea       rdx,[0F579]
       add       rcx,rdx
       jmp       rcx
       movsx     rax,byte ptr [rsp+30]
       cdqe
       jmp       short 000000000000F606
       movzx     eax,byte ptr [rsp+30]
       jmp       short 000000000000F606
       cmp       byte ptr [rsp+30],0
       jne       short 000000000000F5CD
       xor       eax,eax
       jmp       short 000000000000F5D2
       mov       eax,1
       jmp       short 000000000000F606
       movsx     rax,word ptr [rsp+30]
       cdqe
       jmp       short 000000000000F606
       movzx     eax,word ptr [rsp+30]
       jmp       short 000000000000F606
       movzx     eax,word ptr [rsp+30]
       jmp       short 000000000000F606
       mov       eax,[rsp+30]
       jmp       short 000000000000F606
       mov       eax,[rsp+30]
       cdqe
       jmp       short 000000000000F606
       mov       rax,[rsp+30]
       jmp       short 000000000000F606
       mov       rax,[rsp+30]
       add       rsp,20
       pop       rsi
       ret
       mov       rcx,offset MT_System.InvalidOperationException
       call      0000000000002AE0
       mov       rsi,rax
       mov       ecx,0DCA9
       mov       rdx,7FF9A6824000
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [3030]
       mov       rdx,rax
       mov       rcx,rsi
       call      qword ptr [0D2B8]
       mov       rcx,rsi
       call      0000000000002B00
       int       3
; Total bytes of code 224

; System.Enum.GetEnumInfo(System.RuntimeType, Boolean)
       push      rbp
       push      r15
       push      r14
       push      r13
       push      r12
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,0A8
       vzeroupper
       lea       rbp,[rsp+0E0]
       vxorps    xmm4,xmm4,xmm4
       vmovdqa   xmmword ptr [rbp+0FFB0],xmm4
       xor       esi,esi
       mov       [rbp+0FFC0],rsi
       mov       rsi,rcx
       mov       edi,edx
       lea       rcx,[rbp+0FF50]
       mov       rdx,r10
       call      0000000000000320
       mov       rbx,rax
       mov       rcx,rsp
       mov       [rbp+0FF70],rcx
       mov       rcx,rbp
       mov       [rbp+0FF80],rcx
       mov       rcx,[rsi+10]
       test      rcx,rcx
       je        short 000000000000FA56
       mov       rcx,[rcx]
       test      rcx,rcx
       je        short 000000000000FA51
       mov       r14,[rcx+78]
       test      r14,r14
       je        short 000000000000FA21
       mov       rcx,offset MT_System.Enum+EnumInfo
       cmp       [r14],rcx
       je        short 000000000000FA21
       xor       r14d,r14d
       test      r14,r14
       je        near ptr 000000000000FB31
       test      dil,dil
       je        short 000000000000FA3A
       cmp       qword ptr [r14+10],0
       je        near ptr 000000000000FB31
       mov       rax,r14
       add       rsp,0A8
       pop       rbx
       pop       rsi
       pop       rdi
       pop       r12
       pop       r13
       pop       r14
       pop       r15
       pop       rbp
       ret
       xor       r14d,r14d
       jmp       short 000000000000FA0A
       xor       ecx,ecx
       jmp       short 000000000000FA01
       mov       eax,1
       mov       [rbp+0FF90],rcx
       mov       [rbp+0FF98],r9
       lea       rcx,[rbp+0FF90]
       mov       r9d,eax
       mov       rax,offset MD_System.Enum.GetEnumValuesAndNames(System.Runtime.CompilerServices.QCallTypeHandle, System.Runtime.CompilerServices.ObjectHandleOnStack, System.Runtime.CompilerServices.ObjectHandleOnStack, BOOL)
       mov       [rbp+0FF60],rax
       lea       rax,[0FAA2]
       mov       [rbp+0FF78],rax
       lea       rax,[rbp+0FF50]
       mov       [rbx+10],rax
       mov       byte ptr [rbx+0C],0
       call      qword ptr [98A8]
       mov       byte ptr [rbx+0C],1
       cmp       dword ptr [0AE3C],0
       je        short 000000000000FAB5
       call      qword ptr [0D388]
       mov       rcx,[rbp+0FF58]
       mov       [rbx+10],rcx
       mov       rcx,offset MT_System.FlagsAttribute
       call      0000000000005E90
       mov       rdx,rax
       mov       rcx,[rbp+10]
       xor       r8d,r8d
       call      qword ptr [89F0]
       mov       r14d,eax
       mov       rcx,offset MT_System.Enum+EnumInfo
       call      0000000000002AE0
       mov       rsi,rax
       mov       rcx,rsi
       mov       edx,r14d
       mov       r8,[rbp+0FFC0]
       mov       r9,[rbp+0FFB8]
       call      qword ptr [15D0]
       mov       r14,rsi
       mov       rsi,[rbp+10]
       mov       rcx,[rsi+10]
       test      rcx,rcx
       je        short 000000000000FB7A
       mov       rax,[rcx]
       test      rax,rax
       je        short 000000000000FB7A
       lea       rcx,[rax+78]
       mov       rdx,r14
       call      0000000000000010
       jmp       near ptr 000000000000FA3A
       xor       ecx,ecx
       mov       [rbp+0FFC0],rcx
       mov       [rbp+0FFB8],rcx
       mov       [rbp+10],rsi
       mov       [rbp+0FFB0],rsi
       vxorps    xmm0,xmm0,xmm0
       vmovupd   [rbp+0FFA0],xmm0
       lea       rcx,[rbp+0FFA0]
       lea       rdx,[rbp+0FFB0]
       call      qword ptr [3318]
       lea       rdx,[rbp+0FFC0]
       lea       r8,[rbp+0FFB8]
       mov       rcx,[rbp+0FFA0]
       mov       r9,[rbp+0FFA8]
       test      dil,dil
       jne       near ptr 000000000000FA5A
       xor       eax,eax
       jmp       near ptr 000000000000FA5F
       mov       rcx,rsi
       call      qword ptr [72B8]
       jmp       short 000000000000FB20
; Total bytes of code 485

; System.SpanHelpers.IndexOf[[System.UInt64, System.Private.CoreLib]](UInt64 ByRef, UInt64, Int32)
       xor       r9d,r9d
       cmp       r8d,8
       jge       short 000000000000FD33
       cmp       r8d,4
       jl        short 000000000000FD09
       add       r8d,0FFFFFFFC
       mov       rax,[rcx+r9*8]
       cmp       rdx,rax
       je        short 000000000000FD1B
       mov       rax,[rcx+r9*8+8]
       cmp       rdx,rax
       je        short 000000000000FD2D
       mov       rax,[rcx+r9*8+10]
       cmp       rdx,rax
       jne       short 000000000000FCF5
       lea       eax,[r9+2]
       ret
       mov       rax,[rcx+r9*8+18]
       cmp       rdx,rax
       jne       short 000000000000FD05
       lea       eax,[r9+3]
       jmp       short 000000000000FCF4
       add       r9,4
       test      r8d,r8d
       jle       near ptr 000000000000FD95
       mov       rax,[rcx+r9*8]
       cmp       rdx,rax
       jne       short 000000000000FD20
       mov       eax,r9d
       jmp       short 000000000000FCF4
       inc       r9
       dec       r8d
       test      r8d,r8d
       jle       short 000000000000FD95
       jmp       short 000000000000FD12
       lea       eax,[r9+1]
       jmp       short 000000000000FCF4
       add       r8d,0FFFFFFF8
       mov       rax,[rcx+r9*8]
       cmp       rdx,rax
       je        short 000000000000FD1B
       mov       rax,[rcx+r9*8+8]
       cmp       rdx,rax
       je        short 000000000000FD2D
       mov       rax,[rcx+r9*8+10]
       cmp       rdx,rax
       je        short 000000000000FCF0
       mov       rax,[rcx+r9*8+18]
       cmp       rdx,rax
       je        short 000000000000FCFF
       mov       rax,[rcx+r9*8+20]
       cmp       rdx,rax
       je        short 000000000000FD9B
       mov       rax,[rcx+r9*8+28]
       cmp       rdx,rax
       je        short 000000000000FDA4
       mov       rax,[rcx+r9*8+30]
       cmp       rdx,rax
       je        short 000000000000FDAD
       mov       rax,[rcx+r9*8+38]
       cmp       rdx,rax
       je        short 000000000000FDB6
       add       r9,8
       cmp       r8d,8
       jge       short 000000000000FD33
       jmp       near ptr 000000000000FCC9
       mov       eax,0FFFFFFFF
       ret
       lea       eax,[r9+4]
       jmp       near ptr 000000000000FCF4
       lea       eax,[r9+5]
       jmp       near ptr 000000000000FCF4
       lea       eax,[r9+6]
       jmp       near ptr 000000000000FCF4
       lea       eax,[r9+7]
       jmp       near ptr 000000000000FCF4
; Total bytes of code 255

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

### Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Tests.Perf_UInt64

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ToString - Duration of single invocation	12.56 ns	14.41 ns	1.15	0.02	False	147.6735683935935	159.93688359121776	1.0830433999193336	Trace	Trace
ToString - Duration of single invocation	1.87 ns	3.39 ns	1.81	0.05	False	36.73997235555904	38.86913436315943	1.0579521940570604	Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_UInt64*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_UInt64.ToString(value: 12345)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 14.406219049462521 > 12.712896705003274.
IsChangePoint: Marked as a change because one of 6/27/2022 8:54:23 AM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -58.53941563413774 (T) = (0 -14.568209540655166) / Math.Sqrt((0.024473817936951595 / (20)) + (0.026415393019022338 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.21126676433966982 = (12.027251113917192 - 14.568209540655166) / 12.027251113917192 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Tests.Perf_UInt64.ToString(UInt64)
       sub       rsp,28
       mov       rcx,rdx
       call      qword ptr [9540]
       nop
       add       rsp,28
       ret
; Total bytes of code 19

; System.Number.UInt64ToDecStr(UInt64)
       push      rdi
       push      rsi
       sub       rsp,28
       xor       eax,eax
       mov       [rsp+20],rax
       mov       rsi,rcx
       mov       eax,1
       cmp       rsi,989680
       jae       near ptr 000000000000F6AB
       mov       edx,esi
       cmp       edx,0A
       jb        short 000000000000F5C1
       cmp       edx,64
       jb        near ptr 000000000000F635
       cmp       edx,3E8
       jae       near ptr 000000000000F666
       add       eax,2
       mov       edi,eax
       cmp       edi,1
       je        short 000000000000F639
       mov       ecx,edi
       call      0
       mov       rcx,rax
       test      rcx,rcx
       je        near ptr 000000000000F69E
       lea       rax,[rcx+0C]
       mov       [rsp+20],rax
       mov       r8,[rsp+20]
       movsxd    rax,edi
       lea       r8,[r8+rax*2]
       mov       rdx,0CCCCCCCCCCCD
       mov       rax,rsi
       mul       rdx
       shr       rdx,3
       lea       rax,[rdx+rdx*4]
       add       rax,rax
       sub       rsi,rax
       add       r8,0FFFFFFFFFFFFFFFE
       add       rsi,30
       mov       eax,esi
       mov       [r8],ax
       test      rdx,rdx
       mov       rsi,rdx
       jne       short 000000000000F5F0
       xor       eax,eax
       mov       [rsp+20],rax
       mov       rax,rcx
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       inc       eax
       jmp       short 000000000000F5C1
       mov       rax,2614A8002C8
       mov       rax,[rax]
       test      rsi,rsi
       jl        short 000000000000F6A6
       mov       rcx,rsi
       mov       edx,[rax+8]
       cmp       rcx,rdx
       jae       near ptr 000000000000F6F6
       mov       rax,[rax+rcx*8+10]
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       cmp       edx,2710
       jae       short 000000000000F676
       add       eax,3
       jmp       near ptr 000000000000F5C1
       cmp       edx,186A0
       jae       short 000000000000F686
       add       eax,4
       jmp       near ptr 000000000000F5C1
       cmp       edx,0F4240
       jae       short 000000000000F696
       add       eax,5
       jmp       near ptr 000000000000F5C1
       add       eax,6
       jmp       near ptr 000000000000F5C1
       xor       r8d,r8d
       jmp       near ptr 000000000000F5E9
       call      00000000000065F0
       mov       rax,5AF3107A4000
       cmp       rsi,rax
       jb        short 000000000000F6D8
       mov       rdx,4DC35095CD81
       mov       rax,rsi
       mul       rdx
       shr       rdx,2A
       mov       eax,0F
       jmp       near ptr 000000000000F5A4
       mov       rdx,94D5E57A42BD
       mov       rax,rsi
       mul       rdx
       shr       rdx,17
       mov       eax,8
       jmp       near ptr 000000000000F5A4
       call      0000000000006930
       int       3
; Total bytes of code 380

Compare Jit Disasm

; System.Tests.Perf_UInt64.ToString(UInt64)
       sub       rsp,28
       mov       rcx,rdx
       call      qword ptr [9540]
       nop
       add       rsp,28
       ret
; Total bytes of code 19

; System.Number.UInt64ToDecStr(UInt64)
       push      rdi
       push      rsi
       sub       rsp,28
       xor       eax,eax
       mov       [rsp+20],rax
       mov       rsi,rcx
       mov       eax,1
       cmp       rsi,989680
       jae       near ptr 000000000000F6AB
       mov       edx,esi
       cmp       edx,0A
       jb        short 000000000000F5C1
       cmp       edx,64
       jb        near ptr 000000000000F635
       cmp       edx,3E8
       jae       near ptr 000000000000F666
       add       eax,2
       mov       edi,eax
       cmp       edi,1
       je        short 000000000000F639
       mov       ecx,edi
       call      0
       mov       rcx,rax
       test      rcx,rcx
       je        near ptr 000000000000F69E
       lea       rax,[rcx+0C]
       mov       [rsp+20],rax
       mov       r8,[rsp+20]
       movsxd    rax,edi
       lea       r8,[r8+rax*2]
       mov       rdx,0CCCCCCCCCCCD
       mov       rax,rsi
       mul       rdx
       shr       rdx,3
       lea       rax,[rdx+rdx*4]
       add       rax,rax
       sub       rsi,rax
       add       r8,0FFFFFFFFFFFFFFFE
       add       rsi,30
       mov       eax,esi
       mov       [r8],ax
       test      rdx,rdx
       mov       rsi,rdx
       jne       short 000000000000F5F0
       xor       eax,eax
       mov       [rsp+20],rax
       mov       rax,rcx
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       inc       eax
       jmp       short 000000000000F5C1
       mov       rax,233AC4002C8
       mov       rax,[rax]
       test      rsi,rsi
       jl        short 000000000000F6A6
       mov       rcx,rsi
       mov       edx,[rax+8]
       cmp       rcx,rdx
       jae       near ptr 000000000000F6F6
       mov       rax,[rax+rcx*8+10]
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       cmp       edx,2710
       jae       short 000000000000F676
       add       eax,3
       jmp       near ptr 000000000000F5C1
       cmp       edx,186A0
       jae       short 000000000000F686
       add       eax,4
       jmp       near ptr 000000000000F5C1
       cmp       edx,0F4240
       jae       short 000000000000F696
       add       eax,5
       jmp       near ptr 000000000000F5C1
       add       eax,6
       jmp       near ptr 000000000000F5C1
       xor       r8d,r8d
       jmp       near ptr 000000000000F5E9
       call      000000000000A810
       mov       rax,5AF3107A4000
       cmp       rsi,rax
       jb        short 000000000000F6D8
       mov       rdx,4DC35095CD81
       mov       rax,rsi
       mul       rdx
       shr       rdx,2A
       mov       eax,0F
       jmp       near ptr 000000000000F5A4
       mov       rdx,94D5E57A42BD
       mov       rax,rsi
       mul       rdx
       shr       rdx,17
       mov       eax,8
       jmp       near ptr 000000000000F5A4
       call      000000000000AB50
       int       3
; Total bytes of code 380

System.Tests.Perf_UInt64.ToString(value: 0)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 3.3854396269975484 > 1.9590601909264393.
IsChangePoint: Marked as a change because one of 6/27/2022 8:54:23 AM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -128.38467072283456 (T) = (0 -3.3837989285385546) / Math.Sqrt((0.0031727666543285345 / (20)) + (2.829279638443663E-05 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.9191551236538521 = (1.7631711406924668 - 3.3837989285385546) / 1.7631711406924668 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Tests.Perf_UInt64.ToString(UInt64)
       sub       rsp,28
       mov       rcx,rdx
       call      qword ptr [9540]
       nop
       add       rsp,28
       ret
; Total bytes of code 19

; System.Number.UInt64ToDecStr(UInt64)
       push      rdi
       push      rsi
       sub       rsp,28
       xor       eax,eax
       mov       [rsp+20],rax
       mov       rsi,rcx
       mov       eax,1
       cmp       rsi,989680
       jae       near ptr 000000000000F6AB
       mov       edx,esi
       cmp       edx,0A
       jb        short 000000000000F5C1
       cmp       edx,64
       jb        near ptr 000000000000F635
       cmp       edx,3E8
       jae       near ptr 000000000000F666
       add       eax,2
       mov       edi,eax
       cmp       edi,1
       je        short 000000000000F639
       mov       ecx,edi
       call      0
       mov       rcx,rax
       test      rcx,rcx
       je        near ptr 000000000000F69E
       lea       rax,[rcx+0C]
       mov       [rsp+20],rax
       mov       r8,[rsp+20]
       movsxd    rax,edi
       lea       r8,[r8+rax*2]
       mov       rdx,0CCCCCCCCCCCD
       mov       rax,rsi
       mul       rdx
       shr       rdx,3
       lea       rax,[rdx+rdx*4]
       add       rax,rax
       sub       rsi,rax
       add       r8,0FFFFFFFFFFFFFFFE
       add       rsi,30
       mov       eax,esi
       mov       [r8],ax
       test      rdx,rdx
       mov       rsi,rdx
       jne       short 000000000000F5F0
       xor       eax,eax
       mov       [rsp+20],rax
       mov       rax,rcx
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       inc       eax
       jmp       short 000000000000F5C1
       mov       rax,1C6450002C8
       mov       rax,[rax]
       test      rsi,rsi
       jl        short 000000000000F6A6
       mov       rcx,rsi
       mov       edx,[rax+8]
       cmp       rcx,rdx
       jae       near ptr 000000000000F6F6
       mov       rax,[rax+rcx*8+10]
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       cmp       edx,2710
       jae       short 000000000000F676
       add       eax,3
       jmp       near ptr 000000000000F5C1
       cmp       edx,186A0
       jae       short 000000000000F686
       add       eax,4
       jmp       near ptr 000000000000F5C1
       cmp       edx,0F4240
       jae       short 000000000000F696
       add       eax,5
       jmp       near ptr 000000000000F5C1
       add       eax,6
       jmp       near ptr 000000000000F5C1
       xor       r8d,r8d
       jmp       near ptr 000000000000F5E9
       call      00000000000065F0
       mov       rax,5AF3107A4000
       cmp       rsi,rax
       jb        short 000000000000F6D8
       mov       rdx,4DC35095CD81
       mov       rax,rsi
       mul       rdx
       shr       rdx,2A
       mov       eax,0F
       jmp       near ptr 000000000000F5A4
       mov       rdx,94D5E57A42BD
       mov       rax,rsi
       mul       rdx
       shr       rdx,17
       mov       eax,8
       jmp       near ptr 000000000000F5A4
       call      0000000000006930
       int       3
; Total bytes of code 380

Compare Jit Disasm

; System.Tests.Perf_UInt64.ToString(UInt64)
       sub       rsp,28
       mov       rcx,rdx
       call      qword ptr [9540]
       nop
       add       rsp,28
       ret
; Total bytes of code 19

; System.Number.UInt64ToDecStr(UInt64)
       push      rdi
       push      rsi
       sub       rsp,28
       xor       eax,eax
       mov       [rsp+20],rax
       mov       rsi,rcx
       mov       eax,1
       cmp       rsi,989680
       jae       near ptr 000000000000F6AB
       mov       edx,esi
       cmp       edx,0A
       jb        short 000000000000F5C1
       cmp       edx,64
       jb        near ptr 000000000000F635
       cmp       edx,3E8
       jae       near ptr 000000000000F666
       add       eax,2
       mov       edi,eax
       cmp       edi,1
       je        short 000000000000F639
       mov       ecx,edi
       call      0
       mov       rcx,rax
       test      rcx,rcx
       je        near ptr 000000000000F69E
       lea       rax,[rcx+0C]
       mov       [rsp+20],rax
       mov       r8,[rsp+20]
       movsxd    rax,edi
       lea       r8,[r8+rax*2]
       mov       rdx,0CCCCCCCCCCCD
       mov       rax,rsi
       mul       rdx
       shr       rdx,3
       lea       rax,[rdx+rdx*4]
       add       rax,rax
       sub       rsi,rax
       add       r8,0FFFFFFFFFFFFFFFE
       add       rsi,30
       mov       eax,esi
       mov       [r8],ax
       test      rdx,rdx
       mov       rsi,rdx
       jne       short 000000000000F5F0
       xor       eax,eax
       mov       [rsp+20],rax
       mov       rax,rcx
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       inc       eax
       jmp       short 000000000000F5C1
       mov       rax,1C1AF4002C8
       mov       rax,[rax]
       test      rsi,rsi
       jl        short 000000000000F6A6
       mov       rcx,rsi
       mov       edx,[rax+8]
       cmp       rcx,rdx
       jae       near ptr 000000000000F6F6
       mov       rax,[rax+rcx*8+10]
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       cmp       edx,2710
       jae       short 000000000000F676
       add       eax,3
       jmp       near ptr 000000000000F5C1
       cmp       edx,186A0
       jae       short 000000000000F686
       add       eax,4
       jmp       near ptr 000000000000F5C1
       cmp       edx,0F4240
       jae       short 000000000000F696
       add       eax,5
       jmp       near ptr 000000000000F5C1
       add       eax,6
       jmp       near ptr 000000000000F5C1
       xor       r8d,r8d
       jmp       near ptr 000000000000F5E9
       call      000000000000A810
       mov       rax,5AF3107A4000
       cmp       rsi,rax
       jb        short 000000000000F6D8
       mov       rdx,4DC35095CD81
       mov       rax,rsi
       mul       rdx
       shr       rdx,2A
       mov       eax,0F
       jmp       near ptr 000000000000F5A4
       mov       rdx,94D5E57A42BD
       mov       rax,rsi
       mul       rdx
       shr       rdx,17
       mov       eax,8
       jmp       near ptr 000000000000F5A4
       call      000000000000AB50
       int       3
; Total bytes of code 380

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Collections.Concurrent.AddRemoveFromSameThreads<Int32>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ConcurrentStack - Duration of single invocation	144.49 ms	161.54 ms	1.12	0.13	False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.Concurrent.AddRemoveFromSameThreads<Int32>*'

Payloads

Baseline
Compare

Histogram

System.Collections.Concurrent.AddRemoveFromSameThreads<Int32>.ConcurrentStack(Size: 2000000)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 161.54208421052633 > 149.93782737499998.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -12.788101300974736 (T) = (0 -162395776.10457516) / Math.Sqrt((30869442709952.25 / (20)) + (7486488576710.868 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.11556575845445657 = (145572571.4722222 - 162395776.10457516) / 145572571.4722222 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

[performanceautofiler]

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.IO.Tests.StringReaderReadToEndTests

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ReadToEndAsync - Duration of single invocation	16.63 ns	19.15 ns	1.15	0.21	False	151.73380602820245	145.51019401694694	0.9589833526610494	Trace	Trace
ReadToEndAsync - Duration of single invocation	16.73 ns	18.85 ns	1.13	0.28	False	151.73377877290875	146.73630928874616	0.9670642257473728	Trace	Trace
ReadToEndAsync - Duration of single invocation	16.63 ns	18.27 ns	1.10	0.21	False	149.0907647105535	143.1276207408293	0.9600032639090615	Trace	Trace
ReadToEndAsync - Duration of single invocation	16.51 ns	18.57 ns	1.12	0.24	False	152.1176948534132	142.9601981172961	0.939799924361583	Trace	Trace
ReadToEndAsync - Duration of single invocation	16.36 ns	18.54 ns	1.13	0.25	False	149.49328313395273	143.0508632960979	0.9569049545049986	Trace	Trace
ReadToEnd - Duration of single invocation	8.04 ns	9.22 ns	1.15	0.25	False
ReadToEndAsync - Duration of single invocation	16.66 ns	19.03 ns	1.14	0.21	False	151.70368675238734	142.8488120556285	0.9416304581231973	Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.IO.Tests.StringReaderReadToEndTests*'

Payloads

Baseline
Compare

Histogram

System.IO.Tests.StringReaderReadToEndTests.ReadToEndAsync(LineLengthRange: [ 33, 128])

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 19.145602487551198 > 17.436576497902372.
IsChangePoint: Marked as a change because one of 6/29/2022 1:11:29 AM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -10.909131855365734 (T) = (0 -18.780740095686276) / Math.Sqrt((0.16344891624205368 / (20)) + (1.0794574915390898 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.12222971134031009 = (16.735201274662312 - 18.780740095686276) / 16.735201274662312 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.IO.Tests.StringReaderReadToEndTests.ReadToEndAsync()
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       lea       rbp,[rsp+40]
       mov       [rbp+0FFE0],rsp
       mov       rsi,rcx
       mov       rcx,offset MT_System.IO.StringReader
       call      000000000000C390
       mov       rdi,rax
       mov       rdx,[rsi+8]
       test      rdx,rdx
       je        near ptr 00000000000085D8
       lea       rcx,[rdi+8]
       call      0000000000000010
       mov       rcx,rdi
       mov       [rbp+0FFE8],rcx
       call      qword ptr [0B0B8]
       mov       rsi,rax
       test      rsi,rsi
       je        short 0000000000008597
       mov       rcx,offset MT_System.Threading.Tasks.Task`1[[System.String, System.Private.CoreLib]]
       call      000000000000C390
       mov       rdi,rax
       mov       dword ptr [rdi+34],1000000
       lea       rcx,[rdi+38]
       mov       rdx,rsi
       call      0000000000000010
       jmp       short 00000000000085B8
       mov       rcx,7FF7F5464BE0
       mov       edx,2F
       call      00000000000019F0
       mov       rcx,16BC90095D8
       mov       rdi,[rcx]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      000000000000F440
       mov       rax,rdi
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
       mov       ecx,11
       call      qword ptr [0B7B0]
       int       3
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       mov       rbp,[rcx+20]
       mov       [rsp+20],rbp
       lea       rbp,[rbp+40]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      000000000000F440
       nop
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
; Total bytes of code 246

; System.Threading.Tasks.Task`1[[System.__Canon, System.Private.CoreLib]].GetAwaiter()
       push      rax
       mov       [rsp],rcx
       cmp       [rcx],ecx
       mov       rax,rcx
       add       rsp,8
       ret
; Total bytes of code 15

; System.Runtime.CompilerServices.TaskAwaiter`1[[System.__Canon, System.Private.CoreLib]].GetResult()
       push      rsi
       sub       rsp,20
       mov       rsi,rcx
       mov       rcx,[rsi]
       mov       eax,[rcx+34]
       and       eax,11000000
       cmp       eax,1000000
       jne       short 0000000000008827
       mov       rax,[rsi]
       mov       rax,[rax+38]
       add       rsp,20
       pop       rsi
       ret
       call      qword ptr [0D978]
       jmp       short 000000000000881A
; Total bytes of code 47

; System.IO.StringReader.ReadToEnd()
       sub       rsp,28
       mov       rax,[rcx+8]
       test      rax,rax
       je        short 000000000000873E
       mov       edx,[rcx+10]
       mov       r8d,[rax+8]
       mov       [rcx+10],r8d
       test      edx,edx
       je        short 0000000000008738
       sub       r8d,edx
       mov       rcx,rax
       call      qword ptr [3360]
       nop
       add       rsp,28
       ret
       call      qword ptr [51B0]
       int       3
; Total bytes of code 53

Compare Jit Disasm

; System.IO.Tests.StringReaderReadToEndTests.ReadToEndAsync()
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       lea       rbp,[rsp+40]
       mov       [rbp+0FFE0],rsp
       mov       rsi,rcx
       mov       rcx,offset MT_System.IO.StringReader
       call      0000000000002AE0
       mov       rdi,rax
       mov       rdx,[rsi+8]
       test      rdx,rdx
       je        near ptr 0000000000008298
       lea       rcx,[rdi+8]
       call      0000000000000010
       mov       rcx,rdi
       mov       [rbp+0FFE8],rcx
       call      qword ptr [0B1C0]
       mov       rsi,rax
       test      rsi,rsi
       je        short 0000000000008257
       mov       rcx,offset MT_System.Threading.Tasks.Task`1[[System.String, System.Private.CoreLib]]
       call      0000000000002AE0
       mov       rdi,rax
       mov       dword ptr [rdi+34],1000000
       lea       rcx,[rdi+38]
       mov       rdx,rsi
       call      0000000000000010
       jmp       short 0000000000008278
       mov       rcx,7FFF00B14BF0
       mov       edx,2F
       call      0000000000001230
       mov       rcx,135608095D8
       mov       rdi,[rcx]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      0000000000000FB0
       mov       rax,rdi
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
       mov       ecx,11
       call      qword ptr [0B7B0]
       int       3
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       mov       rbp,[rcx+20]
       mov       [rsp+20],rbp
       lea       rbp,[rbp+40]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      0000000000000FB0
       nop
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
; Total bytes of code 246

; System.Threading.Tasks.Task`1[[System.__Canon, System.Private.CoreLib]].GetAwaiter()
       push      rax
       mov       [rsp],rcx
       cmp       [rcx],ecx
       mov       rax,rcx
       add       rsp,8
       ret
; Total bytes of code 15

; System.Runtime.CompilerServices.TaskAwaiter`1[[System.__Canon, System.Private.CoreLib]].GetResult()
       push      rsi
       sub       rsp,20
       mov       rsi,rcx
       mov       rcx,[rsi]
       mov       eax,[rcx+34]
       and       eax,11000000
       cmp       eax,1000000
       jne       short 00000000000084E7
       mov       rax,[rsi]
       mov       rax,[rax+38]
       add       rsp,20
       pop       rsi
       ret
       call      qword ptr [0DCD8]
       jmp       short 00000000000084DA
; Total bytes of code 47

; System.IO.StringReader.ReadToEnd()
       sub       rsp,28
       mov       rax,[rcx+8]
       test      rax,rax
       je        short 00000000000083FB
       mov       edx,[rcx+10]
       mov       r8d,[rax+8]
       mov       [rcx+10],r8d
       test      edx,edx
       je        short 00000000000083F5
       mov       rcx,rax
       call      qword ptr [3348]
       nop
       add       rsp,28
       ret
       call      qword ptr [51B0]
       int       3
; Total bytes of code 50

System.IO.Tests.StringReaderReadToEndTests.ReadToEndAsync(LineLengthRange: [1025, 2048])

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 18.846334127176313 > 17.276622078182186.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -4.344364750748496 (T) = (0 -18.638817075314982) / Math.Sqrt((1.517468131878421 / (20)) + (0.4639128409405887 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.0740390097370154 = (17.353947953788758 - 18.638817075314982) / 17.353947953788758 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.IO.Tests.StringReaderReadToEndTests.ReadToEndAsync()
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       lea       rbp,[rsp+40]
       mov       [rbp+0FFE0],rsp
       mov       rsi,rcx
       mov       rcx,offset MT_System.IO.StringReader
       call      000000000000C390
       mov       rdi,rax
       mov       rdx,[rsi+8]
       test      rdx,rdx
       je        near ptr 0000000000008658
       lea       rcx,[rdi+8]
       call      0000000000000010
       mov       rcx,rdi
       mov       [rbp+0FFE8],rcx
       call      qword ptr [0B0B8]
       mov       rsi,rax
       test      rsi,rsi
       je        short 0000000000008617
       mov       rcx,offset MT_System.Threading.Tasks.Task`1[[System.String, System.Private.CoreLib]]
       call      000000000000C390
       mov       rdi,rax
       mov       dword ptr [rdi+34],1000000
       lea       rcx,[rdi+38]
       mov       rdx,rsi
       call      0000000000000010
       jmp       short 0000000000008638
       mov       rcx,7FF7F5474BE0
       mov       edx,2F
       call      00000000000019F0
       mov       rcx,1D7A74095D8
       mov       rdi,[rcx]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      000000000000F440
       mov       rax,rdi
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
       mov       ecx,11
       call      qword ptr [0B7B0]
       int       3
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       mov       rbp,[rcx+20]
       mov       [rsp+20],rbp
       lea       rbp,[rbp+40]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      000000000000F440
       nop
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
; Total bytes of code 246

; System.Threading.Tasks.Task`1[[System.__Canon, System.Private.CoreLib]].GetAwaiter()
       push      rax
       mov       [rsp],rcx
       cmp       [rcx],ecx
       mov       rax,rcx
       add       rsp,8
       ret
; Total bytes of code 15

; System.Runtime.CompilerServices.TaskAwaiter`1[[System.__Canon, System.Private.CoreLib]].GetResult()
       push      rsi
       sub       rsp,20
       mov       rsi,rcx
       mov       rcx,[rsi]
       mov       eax,[rcx+34]
       and       eax,11000000
       cmp       eax,1000000
       jne       short 0000000000008527
       mov       rax,[rsi]
       mov       rax,[rax+38]
       add       rsp,20
       pop       rsi
       ret
       call      qword ptr [0D978]
       jmp       short 000000000000851A
; Total bytes of code 47

; System.IO.StringReader.ReadToEnd()
       sub       rsp,28
       mov       rax,[rcx+8]
       test      rax,rax
       je        short 00000000000087BE
       mov       edx,[rcx+10]
       mov       r8d,[rax+8]
       mov       [rcx+10],r8d
       test      edx,edx
       je        short 00000000000087B8
       sub       r8d,edx
       mov       rcx,rax
       call      qword ptr [3360]
       nop
       add       rsp,28
       ret
       call      qword ptr [51B0]
       int       3
; Total bytes of code 53

Compare Jit Disasm

; System.IO.Tests.StringReaderReadToEndTests.ReadToEndAsync()
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       lea       rbp,[rsp+40]
       mov       [rbp+0FFE0],rsp
       mov       rsi,rcx
       mov       rcx,offset MT_System.IO.StringReader
       call      0000000000002AE0
       mov       rdi,rax
       mov       rdx,[rsi+8]
       test      rdx,rdx
       je        near ptr 0000000000008298
       lea       rcx,[rdi+8]
       call      0000000000000010
       mov       rcx,rdi
       mov       [rbp+0FFE8],rcx
       call      qword ptr [0B1C0]
       mov       rsi,rax
       test      rsi,rsi
       je        short 0000000000008257
       mov       rcx,offset MT_System.Threading.Tasks.Task`1[[System.String, System.Private.CoreLib]]
       call      0000000000002AE0
       mov       rdi,rax
       mov       dword ptr [rdi+34],1000000
       lea       rcx,[rdi+38]
       mov       rdx,rsi
       call      0000000000000010
       jmp       short 0000000000008278
       mov       rcx,7FFF00B34BF0
       mov       edx,2F
       call      0000000000001230
       mov       rcx,2284C8095D8
       mov       rdi,[rcx]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      0000000000000FB0
       mov       rax,rdi
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
       mov       ecx,11
       call      qword ptr [0B7B0]
       int       3
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       mov       rbp,[rcx+20]
       mov       [rsp+20],rbp
       lea       rbp,[rbp+40]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      0000000000000FB0
       nop
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
; Total bytes of code 246

; System.Threading.Tasks.Task`1[[System.__Canon, System.Private.CoreLib]].GetAwaiter()
       push      rax
       mov       [rsp],rcx
       cmp       [rcx],ecx
       mov       rax,rcx
       add       rsp,8
       ret
; Total bytes of code 15

; System.Runtime.CompilerServices.TaskAwaiter`1[[System.__Canon, System.Private.CoreLib]].GetResult()
       push      rsi
       sub       rsp,20
       mov       rsi,rcx
       mov       rcx,[rsi]
       mov       eax,[rcx+34]
       and       eax,11000000
       cmp       eax,1000000
       jne       short 00000000000084E7
       mov       rax,[rsi]
       mov       rax,[rax+38]
       add       rsp,20
       pop       rsi
       ret
       call      qword ptr [0DCD8]
       jmp       short 00000000000084DA
; Total bytes of code 47

; System.IO.StringReader.ReadToEnd()
       sub       rsp,28
       mov       rax,[rcx+8]
       test      rax,rax
       je        short 00000000000083FB
       mov       edx,[rcx+10]
       mov       r8d,[rax+8]
       mov       [rcx+10],r8d
       test      edx,edx
       je        short 00000000000083F5
       mov       rcx,rax
       call      qword ptr [3348]
       nop
       add       rsp,28
       ret
       call      qword ptr [51B0]
       int       3
; Total bytes of code 50

System.IO.Tests.StringReaderReadToEndTests.ReadToEndAsync(LineLengthRange: [ 1, 1])

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 18.27065055640008 > 17.317477031316233.
IsChangePoint: Marked as a change because one of 6/28/2022 10:14:54 AM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -23.34985327875806 (T) = (0 -18.6208834850431) / Math.Sqrt((0.048741299659951075 / (20)) + (0.21737662496927534 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.1251797227205874 = (16.549252629632726 - 18.6208834850431) / 16.549252629632726 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.IO.Tests.StringReaderReadToEndTests.ReadToEndAsync()
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       lea       rbp,[rsp+40]
       mov       [rbp+0FFE0],rsp
       mov       rsi,rcx
       mov       rcx,offset MT_System.IO.StringReader
       call      000000000000C390
       mov       rdi,rax
       mov       rdx,[rsi+8]
       test      rdx,rdx
       je        near ptr 00000000000085D8
       lea       rcx,[rdi+8]
       call      0000000000000010
       mov       rcx,rdi
       mov       [rbp+0FFE8],rcx
       call      qword ptr [0B0B8]
       mov       rsi,rax
       test      rsi,rsi
       je        short 0000000000008597
       mov       rcx,offset MT_System.Threading.Tasks.Task`1[[System.String, System.Private.CoreLib]]
       call      000000000000C390
       mov       rdi,rax
       mov       dword ptr [rdi+34],1000000
       lea       rcx,[rdi+38]
       mov       rdx,rsi
       call      0000000000000010
       jmp       short 00000000000085B8
       mov       rcx,7FF7F5474BE0
       mov       edx,2F
       call      00000000000019F0
       mov       rcx,277F8C095D8
       mov       rdi,[rcx]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      000000000000F440
       mov       rax,rdi
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
       mov       ecx,11
       call      qword ptr [0B7B0]
       int       3
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       mov       rbp,[rcx+20]
       mov       [rsp+20],rbp
       lea       rbp,[rbp+40]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      000000000000F440
       nop
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
; Total bytes of code 246

; System.Threading.Tasks.Task`1[[System.__Canon, System.Private.CoreLib]].GetAwaiter()
       push      rax
       mov       [rsp],rcx
       cmp       [rcx],ecx
       mov       rax,rcx
       add       rsp,8
       ret
; Total bytes of code 15

; System.Runtime.CompilerServices.TaskAwaiter`1[[System.__Canon, System.Private.CoreLib]].GetResult()
       push      rsi
       sub       rsp,20
       mov       rsi,rcx
       mov       rcx,[rsi]
       mov       eax,[rcx+34]
       and       eax,11000000
       cmp       eax,1000000
       jne       short 0000000000008827
       mov       rax,[rsi]
       mov       rax,[rax+38]
       add       rsp,20
       pop       rsi
       ret
       call      qword ptr [0D978]
       jmp       short 000000000000881A
; Total bytes of code 47

; System.IO.StringReader.ReadToEnd()
       sub       rsp,28
       mov       rax,[rcx+8]
       test      rax,rax
       je        short 000000000000873E
       mov       edx,[rcx+10]
       mov       r8d,[rax+8]
       mov       [rcx+10],r8d
       test      edx,edx
       je        short 0000000000008738
       sub       r8d,edx
       mov       rcx,rax
       call      qword ptr [3360]
       nop
       add       rsp,28
       ret
       call      qword ptr [51B0]
       int       3
; Total bytes of code 53

Compare Jit Disasm

; System.IO.Tests.StringReaderReadToEndTests.ReadToEndAsync()
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       lea       rbp,[rsp+40]
       mov       [rbp+0FFE0],rsp
       mov       rsi,rcx
       mov       rcx,offset MT_System.IO.StringReader
       call      0000000000002AE0
       mov       rdi,rax
       mov       rdx,[rsi+8]
       test      rdx,rdx
       je        near ptr 0000000000008298
       lea       rcx,[rdi+8]
       call      0000000000000010
       mov       rcx,rdi
       mov       [rbp+0FFE8],rcx
       call      qword ptr [0B1C0]
       mov       rsi,rax
       test      rsi,rsi
       je        short 0000000000008257
       mov       rcx,offset MT_System.Threading.Tasks.Task`1[[System.String, System.Private.CoreLib]]
       call      0000000000002AE0
       mov       rdi,rax
       mov       dword ptr [rdi+34],1000000
       lea       rcx,[rdi+38]
       mov       rdx,rsi
       call      0000000000000010
       jmp       short 0000000000008278
       mov       rcx,7FFF00B24BF0
       mov       edx,2F
       call      0000000000001230
       mov       rcx,1591A0095D8
       mov       rdi,[rcx]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      0000000000000FB0
       mov       rax,rdi
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
       mov       ecx,11
       call      qword ptr [0B7B0]
       int       3
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       mov       rbp,[rcx+20]
       mov       [rsp+20],rbp
       lea       rbp,[rbp+40]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      0000000000000FB0
       nop
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
; Total bytes of code 246

; System.Threading.Tasks.Task`1[[System.__Canon, System.Private.CoreLib]].GetAwaiter()
       push      rax
       mov       [rsp],rcx
       cmp       [rcx],ecx
       mov       rax,rcx
       add       rsp,8
       ret
; Total bytes of code 15

; System.Runtime.CompilerServices.TaskAwaiter`1[[System.__Canon, System.Private.CoreLib]].GetResult()
       push      rsi
       sub       rsp,20
       mov       rsi,rcx
       mov       rcx,[rsi]
       mov       eax,[rcx+34]
       and       eax,11000000
       cmp       eax,1000000
       jne       short 00000000000084E7
       mov       rax,[rsi]
       mov       rax,[rax+38]
       add       rsp,20
       pop       rsi
       ret
       call      qword ptr [0DCD8]
       jmp       short 00000000000084DA
; Total bytes of code 47

; System.IO.StringReader.ReadToEnd()
       sub       rsp,28
       mov       rax,[rcx+8]
       test      rax,rax
       je        short 00000000000083FB
       mov       edx,[rcx+10]
       mov       r8d,[rax+8]
       mov       [rcx+10],r8d
       test      edx,edx
       je        short 00000000000083F5
       mov       rcx,rax
       call      qword ptr [3348]
       nop
       add       rsp,28
       ret
       call      qword ptr [51B0]
       int       3
; Total bytes of code 50

System.IO.Tests.StringReaderReadToEndTests.ReadToEndAsync(LineLengthRange: [ 9, 32])

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 18.568099099584433 > 17.348412121959004.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -11.488825072065273 (T) = (0 -18.713084617473363) / Math.Sqrt((0.44101920034757436 / (20)) + (0.1249754401737981 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.1079267248364103 = (16.890182534622426 - 18.713084617473363) / 16.890182534622426 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.IO.Tests.StringReaderReadToEndTests.ReadToEndAsync()
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       lea       rbp,[rsp+40]
       mov       [rbp+0FFE0],rsp
       mov       rsi,rcx
       mov       rcx,offset MT_System.IO.StringReader
       call      000000000000C390
       mov       rdi,rax
       mov       rdx,[rsi+8]
       test      rdx,rdx
       je        near ptr 00000000000085D8
       lea       rcx,[rdi+8]
       call      0000000000000010
       mov       rcx,rdi
       mov       [rbp+0FFE8],rcx
       call      qword ptr [0B0B8]
       mov       rsi,rax
       test      rsi,rsi
       je        short 0000000000008597
       mov       rcx,offset MT_System.Threading.Tasks.Task`1[[System.String, System.Private.CoreLib]]
       call      000000000000C390
       mov       rdi,rax
       mov       dword ptr [rdi+34],1000000
       lea       rcx,[rdi+38]
       mov       rdx,rsi
       call      0000000000000010
       jmp       short 00000000000085B8
       mov       rcx,7FF7F5464BE0
       mov       edx,2F
       call      00000000000019F0
       mov       rcx,208554095D8
       mov       rdi,[rcx]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      000000000000F440
       mov       rax,rdi
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
       mov       ecx,11
       call      qword ptr [0B7B0]
       int       3
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       mov       rbp,[rcx+20]
       mov       [rsp+20],rbp
       lea       rbp,[rbp+40]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      000000000000F440
       nop
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
; Total bytes of code 246

; System.Threading.Tasks.Task`1[[System.__Canon, System.Private.CoreLib]].GetAwaiter()
       push      rax
       mov       [rsp],rcx
       cmp       [rcx],ecx
       mov       rax,rcx
       add       rsp,8
       ret
; Total bytes of code 15

; System.Runtime.CompilerServices.TaskAwaiter`1[[System.__Canon, System.Private.CoreLib]].GetResult()
       push      rsi
       sub       rsp,20
       mov       rsi,rcx
       mov       rcx,[rsi]
       mov       eax,[rcx+34]
       and       eax,11000000
       cmp       eax,1000000
       jne       short 0000000000008827
       mov       rax,[rsi]
       mov       rax,[rax+38]
       add       rsp,20
       pop       rsi
       ret
       call      qword ptr [0D978]
       jmp       short 000000000000881A
; Total bytes of code 47

; System.IO.StringReader.ReadToEnd()
       sub       rsp,28
       mov       rax,[rcx+8]
       test      rax,rax
       je        short 000000000000873E
       mov       edx,[rcx+10]
       mov       r8d,[rax+8]
       mov       [rcx+10],r8d
       test      edx,edx
       je        short 0000000000008738
       sub       r8d,edx
       mov       rcx,rax
       call      qword ptr [3360]
       nop
       add       rsp,28
       ret
       call      qword ptr [51B0]
       int       3
; Total bytes of code 53

Compare Jit Disasm

; System.IO.Tests.StringReaderReadToEndTests.ReadToEndAsync()
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       lea       rbp,[rsp+40]
       mov       [rbp+0FFE0],rsp
       mov       rsi,rcx
       mov       rcx,offset MT_System.IO.StringReader
       call      0000000000002AE0
       mov       rdi,rax
       mov       rdx,[rsi+8]
       test      rdx,rdx
       je        near ptr 0000000000008278
       lea       rcx,[rdi+8]
       call      0000000000000010
       mov       rcx,rdi
       mov       [rbp+0FFE8],rcx
       call      qword ptr [0B1C0]
       mov       rsi,rax
       test      rsi,rsi
       je        short 0000000000008237
       mov       rcx,offset MT_System.Threading.Tasks.Task`1[[System.String, System.Private.CoreLib]]
       call      0000000000002AE0
       mov       rdi,rax
       mov       dword ptr [rdi+34],1000000
       lea       rcx,[rdi+38]
       mov       rdx,rsi
       call      0000000000000010
       jmp       short 0000000000008258
       mov       rcx,7FFF00B24BF0
       mov       edx,2F
       call      0000000000001230
       mov       rcx,1A39B8095D8
       mov       rdi,[rcx]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      0000000000000FB0
       mov       rax,rdi
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
       mov       ecx,11
       call      qword ptr [0B7B0]
       int       3
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       mov       rbp,[rcx+20]
       mov       [rsp+20],rbp
       lea       rbp,[rbp+40]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      0000000000000FB0
       nop
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
; Total bytes of code 246

; System.Threading.Tasks.Task`1[[System.__Canon, System.Private.CoreLib]].GetAwaiter()
       push      rax
       mov       [rsp],rcx
       cmp       [rcx],ecx
       mov       rax,rcx
       add       rsp,8
       ret
; Total bytes of code 15

; System.Runtime.CompilerServices.TaskAwaiter`1[[System.__Canon, System.Private.CoreLib]].GetResult()
       push      rsi
       sub       rsp,20
       mov       rsi,rcx
       mov       rcx,[rsi]
       mov       eax,[rcx+34]
       and       eax,11000000
       cmp       eax,1000000
       jne       short 00000000000084C7
       mov       rax,[rsi]
       mov       rax,[rax+38]
       add       rsp,20
       pop       rsi
       ret
       call      qword ptr [0DCD8]
       jmp       short 00000000000084BA
; Total bytes of code 47

; System.IO.StringReader.ReadToEnd()
       sub       rsp,28
       mov       rax,[rcx+8]
       test      rax,rax
       je        short 00000000000083DB
       mov       edx,[rcx+10]
       mov       r8d,[rax+8]
       mov       [rcx+10],r8d
       test      edx,edx
       je        short 00000000000083D5
       mov       rcx,rax
       call      qword ptr [3348]
       nop
       add       rsp,28
       ret
       call      qword ptr [51B0]
       int       3
; Total bytes of code 50

System.IO.Tests.StringReaderReadToEndTests.ReadToEndAsync(LineLengthRange: [ 0, 0])

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 18.54120355306514 > 17.296030348870133.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -5.576069413114465 (T) = (0 -18.639425696472507) / Math.Sqrt((1.5395510004551336 / (20)) + (0.5303222565294639 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.09873660958132248 = (16.964416707271752 - 18.639425696472507) / 16.964416707271752 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.IO.Tests.StringReaderReadToEndTests.ReadToEndAsync()
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       lea       rbp,[rsp+40]
       mov       [rbp+0FFE0],rsp
       mov       rsi,rcx
       mov       rcx,offset MT_System.IO.StringReader
       call      000000000000C390
       mov       rdi,rax
       mov       rdx,[rsi+8]
       test      rdx,rdx
       je        near ptr 00000000000086F8
       lea       rcx,[rdi+8]
       call      0000000000000010
       mov       rcx,rdi
       mov       [rbp+0FFE8],rcx
       call      qword ptr [0B0B8]
       mov       rsi,rax
       test      rsi,rsi
       je        short 00000000000086B7
       mov       rcx,offset MT_System.Threading.Tasks.Task`1[[System.String, System.Private.CoreLib]]
       call      000000000000C390
       mov       rdi,rax
       mov       dword ptr [rdi+34],1000000
       lea       rcx,[rdi+38]
       mov       rdx,rsi
       call      0000000000000010
       jmp       short 00000000000086D8
       mov       rcx,7FF7F5514BE0
       mov       edx,2F
       call      00000000000019F0
       mov       rcx,2784C8095D8
       mov       rdi,[rcx]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      000000000000F440
       mov       rax,rdi
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
       mov       ecx,11
       call      qword ptr [0B7B0]
       int       3
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       mov       rbp,[rcx+20]
       mov       [rsp+20],rbp
       lea       rbp,[rbp+40]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      000000000000F440
       nop
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
; Total bytes of code 246

; System.Threading.Tasks.Task`1[[System.__Canon, System.Private.CoreLib]].GetAwaiter()
       push      rax
       mov       [rsp],rcx
       cmp       [rcx],ecx
       mov       rax,rcx
       add       rsp,8
       ret
; Total bytes of code 15

; System.Runtime.CompilerServices.TaskAwaiter`1[[System.__Canon, System.Private.CoreLib]].GetResult()
       push      rsi
       sub       rsp,20
       mov       rsi,rcx
       mov       rcx,[rsi]
       mov       eax,[rcx+34]
       and       eax,11000000
       cmp       eax,1000000
       jne       short 0000000000008827
       mov       rax,[rsi]
       mov       rax,[rax+38]
       add       rsp,20
       pop       rsi
       ret
       call      qword ptr [0FE70]
       jmp       short 000000000000881A
; Total bytes of code 47

; System.IO.StringReader.ReadToEnd()
       sub       rsp,28
       mov       rax,[rcx+8]
       test      rax,rax
       je        short 00000000000085CE
       mov       edx,[rcx+10]
       mov       r8d,[rax+8]
       mov       [rcx+10],r8d
       test      edx,edx
       je        short 00000000000085C8
       sub       r8d,edx
       mov       rcx,rax
       call      qword ptr [3360]
       nop
       add       rsp,28
       ret
       call      qword ptr [51B0]
       int       3
; Total bytes of code 53

Compare Jit Disasm

; System.IO.Tests.StringReaderReadToEndTests.ReadToEndAsync()
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       lea       rbp,[rsp+40]
       mov       [rbp+0FFE0],rsp
       mov       rsi,rcx
       mov       rcx,offset MT_System.IO.StringReader
       call      0000000000002AE0
       mov       rdi,rax
       mov       rdx,[rsi+8]
       test      rdx,rdx
       je        near ptr 0000000000008278
       lea       rcx,[rdi+8]
       call      0000000000000010
       mov       rcx,rdi
       mov       [rbp+0FFE8],rcx
       call      qword ptr [0B1C0]
       mov       rsi,rax
       test      rsi,rsi
       je        short 0000000000008237
       mov       rcx,offset MT_System.Threading.Tasks.Task`1[[System.String, System.Private.CoreLib]]
       call      0000000000002AE0
       mov       rdi,rax
       mov       dword ptr [rdi+34],1000000
       lea       rcx,[rdi+38]
       mov       rdx,rsi
       call      0000000000000010
       jmp       short 0000000000008258
       mov       rcx,7FFF00B94BF0
       mov       edx,2F
       call      0000000000001230
       mov       rcx,24F428095D8
       mov       rdi,[rcx]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      0000000000000FB0
       mov       rax,rdi
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
       mov       ecx,11
       call      qword ptr [0B7B0]
       int       3
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       mov       rbp,[rcx+20]
       mov       [rsp+20],rbp
       lea       rbp,[rbp+40]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      0000000000000FB0
       nop
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
; Total bytes of code 246

; System.Threading.Tasks.Task`1[[System.__Canon, System.Private.CoreLib]].GetAwaiter()
       push      rax
       mov       [rsp],rcx
       cmp       [rcx],ecx
       mov       rax,rcx
       add       rsp,8
       ret
; Total bytes of code 15

; System.Runtime.CompilerServices.TaskAwaiter`1[[System.__Canon, System.Private.CoreLib]].GetResult()
       push      rsi
       sub       rsp,20
       mov       rsi,rcx
       mov       rcx,[rsi]
       mov       eax,[rcx+34]
       and       eax,11000000
       cmp       eax,1000000
       jne       short 00000000000084C7
       mov       rax,[rsi]
       mov       rax,[rax+38]
       add       rsp,20
       pop       rsi
       ret
       call      qword ptr [0DCD8]
       jmp       short 00000000000084BA
; Total bytes of code 47

; System.IO.StringReader.ReadToEnd()
       sub       rsp,28
       mov       rax,[rcx+8]
       test      rax,rax
       je        short 00000000000083DB
       mov       edx,[rcx+10]
       mov       r8d,[rax+8]
       mov       [rcx+10],r8d
       test      edx,edx
       je        short 00000000000083D5
       mov       rcx,rax
       call      qword ptr [3348]
       nop
       add       rsp,28
       ret
       call      qword ptr [51B0]
       int       3
; Total bytes of code 50

System.IO.Tests.StringReaderReadToEndTests.ReadToEnd(LineLengthRange: [ 33, 128])

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 9.217979676776038 > 8.362310259044031.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -7.19714779222927 (T) = (0 -9.112636558781357) / Math.Sqrt((0.05952608887205485 / (20)) + (0.7420724488826166 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.13107189950274092 = (8.056637745829946 - 9.112636558781357) / 8.056637745829946 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.IO.Tests.StringReaderReadToEndTests.ReadToEnd()
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       lea       rbp,[rsp+40]
       mov       [rbp+0FFE0],rsp
       mov       rsi,rcx
       mov       rcx,offset MT_System.IO.StringReader
       call      000000000000C390
       mov       rdi,rax
       mov       rdx,[rsi+8]
       test      rdx,rdx
       je        short 0000000000008507
       lea       rcx,[rdi+8]
       call      0000000000000010
       mov       rcx,rdi
       mov       [rbp+0FFE8],rcx
       call      qword ptr [9FE8]
       mov       rsi,rax
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      000000000000F440
       mov       rax,rsi
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
       mov       ecx,11
       call      qword ptr [0B7B0]
       int       3
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       mov       rbp,[rcx+20]
       mov       [rsp+20],rbp
       lea       rbp,[rbp+40]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      000000000000F440
       nop
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
; Total bytes of code 165

; System.IO.StringReader.ReadToEnd()
       sub       rsp,28
       mov       rax,[rcx+8]
       test      rax,rax
       je        short 00000000000085DE
       mov       edx,[rcx+10]
       mov       r8d,[rax+8]
       mov       [rcx+10],r8d
       test      edx,edx
       je        short 00000000000085D8
       sub       r8d,edx
       mov       rcx,rax
       call      qword ptr [3360]
       nop
       add       rsp,28
       ret
       call      qword ptr [3990]
       int       3
; Total bytes of code 53

System.IO.Tests.StringReaderReadToEndTests.ReadToEndAsync(LineLengthRange: [ 129, 1024])

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 19.033486696110355 > 17.66133672721919.
IsChangePoint: Marked as a change because one of 8/9/2022 4:14:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -8.084908912376113 (T) = (0 -18.84045407330948) / Math.Sqrt((0.8210405851534628 / (21)) + (0.6426304607725588 / (39))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (21) + (39) - 2, .025) and -0.1125491498046884 = (16.93449145740391 - 18.84045407330948) / 16.93449145740391 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.IO.Tests.StringReaderReadToEndTests.ReadToEndAsync()
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       lea       rbp,[rsp+40]
       mov       [rbp+0FFE0],rsp
       mov       rsi,rcx
       mov       rcx,offset MT_System.IO.StringReader
       call      000000000000C390
       mov       rdi,rax
       mov       rdx,[rsi+8]
       test      rdx,rdx
       je        near ptr 00000000000085F8
       lea       rcx,[rdi+8]
       call      0000000000000010
       mov       rcx,rdi
       mov       [rbp+0FFE8],rcx
       call      qword ptr [0B0B8]
       mov       rsi,rax
       test      rsi,rsi
       je        short 00000000000085B7
       mov       rcx,offset MT_System.Threading.Tasks.Task`1[[System.String, System.Private.CoreLib]]
       call      000000000000C390
       mov       rdi,rax
       mov       dword ptr [rdi+34],1000000
       lea       rcx,[rdi+38]
       mov       rdx,rsi
       call      0000000000000010
       jmp       short 00000000000085D8
       mov       rcx,7FF7F5464BE0
       mov       edx,2F
       call      00000000000019F0
       mov       rcx,211C7C095D8
       mov       rdi,[rcx]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      000000000000F440
       mov       rax,rdi
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
       mov       ecx,11
       call      qword ptr [0B7B0]
       int       3
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       mov       rbp,[rcx+20]
       mov       [rsp+20],rbp
       lea       rbp,[rbp+40]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      000000000000F440
       nop
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
; Total bytes of code 246

; System.Threading.Tasks.Task`1[[System.__Canon, System.Private.CoreLib]].GetAwaiter()
       push      rax
       mov       [rsp],rcx
       cmp       [rcx],ecx
       mov       rax,rcx
       add       rsp,8
       ret
; Total bytes of code 15

; System.Runtime.CompilerServices.TaskAwaiter`1[[System.__Canon, System.Private.CoreLib]].GetResult()
       push      rsi
       sub       rsp,20
       mov       rsi,rcx
       mov       rcx,[rsi]
       mov       eax,[rcx+34]
       and       eax,11000000
       cmp       eax,1000000
       jne       short 0000000000008847
       mov       rax,[rsi]
       mov       rax,[rax+38]
       add       rsp,20
       pop       rsi
       ret
       call      qword ptr [0D978]
       jmp       short 000000000000883A
; Total bytes of code 47

; System.IO.StringReader.ReadToEnd()
       sub       rsp,28
       mov       rax,[rcx+8]
       test      rax,rax
       je        short 000000000000875E
       mov       edx,[rcx+10]
       mov       r8d,[rax+8]
       mov       [rcx+10],r8d
       test      edx,edx
       je        short 0000000000008758
       sub       r8d,edx
       mov       rcx,rax
       call      qword ptr [3360]
       nop
       add       rsp,28
       ret
       call      qword ptr [51B0]
       int       3
; Total bytes of code 53

Compare Jit Disasm

; System.IO.Tests.StringReaderReadToEndTests.ReadToEndAsync()
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       lea       rbp,[rsp+40]
       mov       [rbp+0FFE0],rsp
       mov       rsi,rcx
       mov       rcx,offset MT_System.IO.StringReader
       call      0000000000002AE0
       mov       rdi,rax
       mov       rdx,[rsi+8]
       test      rdx,rdx
       je        near ptr 0000000000008278
       lea       rcx,[rdi+8]
       call      0000000000000010
       mov       rcx,rdi
       mov       [rbp+0FFE8],rcx
       call      qword ptr [0B1C0]
       mov       rsi,rax
       test      rsi,rsi
       je        short 0000000000008237
       mov       rcx,offset MT_System.Threading.Tasks.Task`1[[System.String, System.Private.CoreLib]]
       call      0000000000002AE0
       mov       rdi,rax
       mov       dword ptr [rdi+34],1000000
       lea       rcx,[rdi+38]
       mov       rdx,rsi
       call      0000000000000010
       jmp       short 0000000000008258
       mov       rcx,7FFF00B24BF0
       mov       edx,2F
       call      0000000000001230
       mov       rcx,23AD24095D8
       mov       rdi,[rcx]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      0000000000000FB0
       mov       rax,rdi
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
       mov       ecx,11
       call      qword ptr [0B7B0]
       int       3
       push      rbp
       push      rdi
       push      rsi
       sub       rsp,30
       mov       rbp,[rcx+20]
       mov       [rsp+20],rbp
       lea       rbp,[rbp+40]
       xor       ecx,ecx
       mov       rax,[rbp+0FFE8]
       mov       [rax+8],rcx
       mov       [rax+10],ecx
       mov       rcx,rax
       call      0000000000000FB0
       nop
       add       rsp,30
       pop       rsi
       pop       rdi
       pop       rbp
       ret
; Total bytes of code 246

; System.Threading.Tasks.Task`1[[System.__Canon, System.Private.CoreLib]].GetAwaiter()
       push      rax
       mov       [rsp],rcx
       cmp       [rcx],ecx
       mov       rax,rcx
       add       rsp,8
       ret
; Total bytes of code 15

; System.Runtime.CompilerServices.TaskAwaiter`1[[System.__Canon, System.Private.CoreLib]].GetResult()
       push      rsi
       sub       rsp,20
       mov       rsi,rcx
       mov       rcx,[rsi]
       mov       eax,[rcx+34]
       and       eax,11000000
       cmp       eax,1000000
       jne       short 00000000000084C7
       mov       rax,[rsi]
       mov       rax,[rax+38]
       add       rsp,20
       pop       rsi
       ret
       call      qword ptr [0DCD8]
       jmp       short 00000000000084BA
; Total bytes of code 47

; System.IO.StringReader.ReadToEnd()
       sub       rsp,28
       mov       rax,[rcx+8]
       test      rax,rax
       je        short 00000000000083DB
       mov       edx,[rcx+10]
       mov       r8d,[rax+8]
       mov       [rcx+10],r8d
       test      edx,edx
       je        short 00000000000083D5
       mov       rcx,rax
       call      qword ptr [3348]
       nop
       add       rsp,28
       ret
       call      qword ptr [51B0]
       int       3
; Total bytes of code 50

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

[performanceautofiler]

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Threading.Tests.Perf_CancellationToken

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
CreateLinkedTokenSource1 - Duration of single invocation	48.65 ns	52.86 ns	1.09	0.05	False	405.1485707464072	455.75074074478687	1.1248978119437891	Trace	Trace
CreateLinkedTokenSource3 - Duration of single invocation	133.46 ns	149.60 ns	1.12	0.00	False				Trace	Trace
RegisterAndUnregister_Serial - Duration of single invocation	44.91 ns	57.95 ns	1.29	0.37	False	381.89965829395726	429.3822913714973	1.124332745647527	Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Threading.Tests.Perf_CancellationToken*'

Payloads

Baseline
Compare

Histogram

System.Threading.Tests.Perf_CancellationToken.CreateLinkedTokenSource1

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 52.8588023934335 > 50.47234926136703.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -36.633017895862736 (T) = (0 -52.9515644884558) / Math.Sqrt((0.10967204892904692 / (20)) + (0.3794585845599543 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.09247335824658234 = (48.469433225761186 - 52.9515644884558) / 48.469433225761186 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Threading.Tests.Perf_CancellationToken.CreateLinkedTokenSource1()
       push      rsi
       sub       rsp,20
       mov       rcx,[rcx+20]
       xor       edx,edx
       call      qword ptr [0FF30]
       mov       rsi,rax
       mov       rcx,offset MT_System.Threading.CancellationTokenSource
       cmp       [rsi],rcx
       jne       short 000000000000F311
       mov       rcx,rsi
       mov       edx,1
       call      qword ptr [2680]
       mov       rcx,rsi
       call      qword ptr [0BAC8]
       nop
       add       rsp,20
       pop       rsi
       ret
       mov       rcx,rsi
       mov       edx,1
       mov       rax,[rsi]
       mov       rax,[rax+40]
       call      qword ptr [rax+28]
       jmp       short 000000000000F301
; Total bytes of code 85

; System.Threading.CancellationTokenSource.CreateLinkedTokenSource(System.Threading.CancellationToken, System.Threading.CancellationToken)
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       mov       rsi,rcx
       mov       rdi,rdx
       test      rsi,rsi
       je        short 000000000000F383
       test      rdi,rdi
       je        short 000000000000F395
       mov       rcx,offset MT_System.Threading.CancellationTokenSource+Linked2CancellationTokenSource
       call      000000000000C390
       mov       rbx,rax
       mov       rcx,rbx
       mov       rdx,rsi
       mov       r8,rdi
       call      qword ptr [19A8]
       mov       rax,rbx
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       rcx,rdi
       call      qword ptr [0FF48]
       nop
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       rcx,offset MT_System.Threading.CancellationTokenSource+Linked1CancellationTokenSource
       call      000000000000C390
       mov       rdi,rax
       mov       rcx,rdi
       mov       rdx,rsi
       call      qword ptr [1978]
       mov       rax,rdi
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 126

; System.Threading.CancellationTokenSource.Dispose(Boolean)
       push      rdi
       push      rsi
       push      rbp
       push      rbx
       sub       rsp,28
       mov       rsi,rcx
       test      dl,dl
       je        short 000000000000FB7F
       cmp       byte ptr [rsi+24],0
       jne       short 000000000000FB7F
       mov       rcx,[rsi+8]
       test      rcx,rcx
       jne       short 000000000000FB88
       xor       ecx,ecx
       mov       [rsi+18],rcx
       cmp       qword ptr [rsi+10],0
       jne       short 000000000000FBB9
       mov       byte ptr [rsi+24],1
       add       rsp,28
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       ret
       xor       eax,eax
       mov       [rsi+8],rax
       call      qword ptr [7048]
       jmp       short 000000000000FB6E
       mov       rcx,rbx
       mov       edx,1
       mov       rax,[rbp+40]
       call      qword ptr [rax+30]
       mov       rcx,rbx
       call      qword ptr [0BAC8]
       mov       rcx,rdi
       call      qword ptr [0BAC8]
       jmp       short 000000000000FB7B
       lea       rcx,[rsi+10]
       xor       edx,edx
       call      000000000000EFA0
       mov       rdi,rax
       test      rdi,rdi
       je        short 000000000000FB7B
       cmp       dword ptr [rsi+20],1
       je        short 000000000000FB7B
       mov       rbx,[rdi+8]
       test      rbx,rbx
       je        short 000000000000FBAE
       mov       rbp,[rbx]
       mov       rcx,offset MT_Microsoft.Win32.SafeHandles.SafeFileHandle
       cmp       rbp,rcx
       jne       short 000000000000FB96
       mov       rcx,rbx
       mov       edx,1
       call      qword ptr [93C0]
       jmp       short 000000000000FBA5
; Total bytes of code 173

; System.GC.SuppressFinalize(System.Object)
       sub       rsp,28
       test      rcx,rcx
       je        short 000000000000F262
       add       rsp,28
       jmp       near ptr 000000000000F440
       mov       ecx,135D
       mov       rdx,7FF924EB4000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [33F0]
       int       3
; Total bytes of code 48

Compare Jit Disasm

; System.Threading.Tests.Perf_CancellationToken.CreateLinkedTokenSource1()
       push      rsi
       sub       rsp,20
       mov       rcx,[rcx+20]
       xor       edx,edx
       call      qword ptr [0FF30]
       mov       rsi,rax
       mov       rcx,offset MT_System.Threading.CancellationTokenSource
       cmp       [rsi],rcx
       jne       short 000000000000F311
       mov       rcx,rsi
       mov       edx,1
       call      qword ptr [27C8]
       mov       rcx,rsi
       call      qword ptr [0BAC8]
       nop
       add       rsp,20
       pop       rsi
       ret
       mov       rcx,rsi
       mov       edx,1
       mov       rax,[rsi]
       mov       rax,[rax+40]
       call      qword ptr [rax+28]
       jmp       short 000000000000F301
; Total bytes of code 85

; System.Threading.CancellationTokenSource.CreateLinkedTokenSource(System.Threading.CancellationToken, System.Threading.CancellationToken)
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       mov       rsi,rcx
       mov       rdi,rdx
       test      rsi,rsi
       je        short 000000000000F383
       test      rdi,rdi
       je        short 000000000000F395
       mov       rcx,offset MT_System.Threading.CancellationTokenSource+Linked2CancellationTokenSource
       call      0000000000002AE0
       mov       rbx,rax
       mov       rcx,rbx
       mov       rdx,rsi
       mov       r8,rdi
       call      qword ptr [19A8]
       mov       rax,rbx
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       rcx,rdi
       call      qword ptr [0FF48]
       nop
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       rcx,offset MT_System.Threading.CancellationTokenSource+Linked1CancellationTokenSource
       call      0000000000002AE0
       mov       rdi,rax
       mov       rcx,rdi
       mov       rdx,rsi
       call      qword ptr [1978]
       mov       rax,rdi
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 126

; System.Threading.CancellationTokenSource.Dispose(Boolean)
       push      rdi
       push      rsi
       push      rbp
       push      rbx
       sub       rsp,28
       mov       rsi,rcx
       test      dl,dl
       je        short 000000000000FB7F
       cmp       byte ptr [rsi+24],0
       jne       short 000000000000FB7F
       mov       rcx,[rsi+8]
       test      rcx,rcx
       jne       short 000000000000FB88
       xor       ecx,ecx
       mov       [rsi+18],rcx
       cmp       qword ptr [rsi+10],0
       jne       short 000000000000FBB9
       mov       byte ptr [rsi+24],1
       add       rsp,28
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       ret
       xor       eax,eax
       mov       [rsi+8],rax
       call      qword ptr [7048]
       jmp       short 000000000000FB6E
       mov       rcx,rbx
       mov       edx,1
       mov       rax,[rbp+40]
       call      qword ptr [rax+30]
       mov       rcx,rbx
       call      qword ptr [0BAC8]
       mov       rcx,rdi
       call      qword ptr [0BAC8]
       jmp       short 000000000000FB7B
       lea       rcx,[rsi+10]
       xor       edx,edx
       call      000000000000EB70
       mov       rdi,rax
       test      rdi,rdi
       je        short 000000000000FB7B
       cmp       dword ptr [rsi+20],1
       je        short 000000000000FB7B
       mov       rbx,[rdi+8]
       test      rbx,rbx
       je        short 000000000000FBAE
       mov       rbp,[rbx]
       mov       rcx,offset MT_Microsoft.Win32.SafeHandles.SafeFileHandle
       cmp       rbp,rcx
       jne       short 000000000000FB96
       mov       rcx,rbx
       mov       edx,1
       call      qword ptr [93C0]
       jmp       short 000000000000FBA5
; Total bytes of code 173

; System.GC.SuppressFinalize(System.Object)
       sub       rsp,28
       test      rcx,rcx
       je        short 000000000000F262
       add       rsp,28
       jmp       near ptr 0000000000000FB0
       mov       ecx,135D
       mov       rdx,7FF94E2A4000
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [33F0]
       int       3
; Total bytes of code 48

System.Threading.Tests.Perf_CancellationToken.CreateLinkedTokenSource3

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 149.5979406932832 > 141.00197335933873.
IsChangePoint: Marked as a change because one of 7/6/2022 12:32:56 PM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -108.06865258929506 (T) = (0 -149.86947636351547) / Math.Sqrt((0.15920062825587517 / (20)) + (0.509372731894824 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.11573761048725632 = (134.32322703369803 - 149.86947636351547) / 134.32322703369803 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Threading.Tests.Perf_CancellationToken.CreateLinkedTokenSource3()
       push      rsi
       sub       rsp,20
       mov       rcx,[rcx+10]
       call      qword ptr [0FF60]
       mov       rsi,rax
       mov       rcx,offset MT_System.Threading.CancellationTokenSource
       cmp       [rsi],rcx
       jne       short 000000000000F8DD
       mov       rcx,rsi
       mov       edx,1
       call      qword ptr [2680]
       mov       rcx,rsi
       add       rsp,20
       pop       rsi
       jmp       qword ptr [0BAC8]
       mov       rcx,rsi
       mov       edx,1
       mov       rax,[rsi]
       mov       rax,[rax+40]
       call      qword ptr [rax+28]
       jmp       short 000000000000F8CF
; Total bytes of code 81

; System.Threading.CancellationTokenSource.CreateLinkedTokenSource(System.Threading.CancellationToken[])
       push      rdi
       push      rsi
       sub       rsp,28
       mov       rsi,rcx
       test      rsi,rsi
       je        short 000000000000F95C
       mov       edi,[rsi+8]
       cmp       edi,2
       ja        near ptr 000000000000F9D9
       mov       ecx,edi
       lea       rax,[0FA08]
       mov       eax,[rax+rcx*4]
       lea       rdx,[0F919]
       add       rax,rdx
       jmp       rax
       test      edi,edi
       je        near ptr 000000000000F9FF
       mov       rcx,[rsi+10]
       call      qword ptr [0FF48]
       nop
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       mov       ecx,165EF
       mov       rdx,7FF9B1F34000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [33F0]
       int       3
       mov       rcx,offset MT_System.ArgumentException
       call      000000000000C390
       mov       rdi,rax
       mov       ecx,0AE63
       mov       rdx,7FF9B1F34000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [74E0]
       mov       rdx,rax
       mov       rcx,rdi
       call      qword ptr [0BB88]
       mov       rcx,rdi
       call      0000000000004690
       test      edi,edi
       je        short 000000000000F9FF
       mov       rcx,[rsi+10]
       cmp       edi,1
       jbe       short 000000000000F9FF
       mov       rdx,[rsi+18]
       call      qword ptr [0FF30]
       jmp       near ptr 000000000000F954
       mov       rcx,offset MT_System.Threading.CancellationTokenSource+LinkedNCancellationTokenSource
       call      000000000000C390
       mov       rdi,rax
       mov       rcx,rdi
       mov       rdx,rsi
       call      qword ptr [17E0]
       mov       rax,rdi
       jmp       near ptr 000000000000F954
       call      0000000000006930
       int       3
; Total bytes of code 245

; System.Threading.CancellationTokenSource.Dispose(Boolean)
       push      rdi
       push      rsi
       push      rbp
       push      rbx
       sub       rsp,28
       mov       rsi,rcx
       test      dl,dl
       je        short 000000000000FC8F
       cmp       byte ptr [rsi+24],0
       jne       short 000000000000FC8F
       mov       rcx,[rsi+8]
       test      rcx,rcx
       jne       short 000000000000FC98
       xor       ecx,ecx
       mov       [rsi+18],rcx
       cmp       qword ptr [rsi+10],0
       jne       short 000000000000FCC9
       mov       byte ptr [rsi+24],1
       add       rsp,28
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       ret
       xor       eax,eax
       mov       [rsi+8],rax
       call      qword ptr [50A8]
       jmp       short 000000000000FC7E
       mov       rcx,rbx
       mov       edx,1
       mov       rax,[rbp+40]
       call      qword ptr [rax+30]
       mov       rcx,rbx
       call      qword ptr [0BAC8]
       mov       rcx,rdi
       call      qword ptr [0BAC8]
       jmp       short 000000000000FC8B
       lea       rcx,[rsi+10]
       xor       edx,edx
       call      000000000000EFA0
       mov       rdi,rax
       test      rdi,rdi
       je        short 000000000000FC8B
       cmp       dword ptr [rsi+20],1
       je        short 000000000000FC8B
       mov       rbx,[rdi+8]
       test      rbx,rbx
       je        short 000000000000FCBE
       mov       rbp,[rbx]
       mov       rcx,offset MT_Microsoft.Win32.SafeHandles.SafeFileHandle
       cmp       rbp,rcx
       jne       short 000000000000FCA6
       mov       rcx,rbx
       mov       edx,1
       call      qword ptr [93C0]
       jmp       short 000000000000FCB5
; Total bytes of code 173

; System.GC.SuppressFinalize(System.Object)
       sub       rsp,28
       test      rcx,rcx
       je        short 000000000000F242
       add       rsp,28
       jmp       near ptr 000000000000F440
       mov       ecx,135D
       mov       rdx,7FF9B1F34000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [33F0]
       int       3
; Total bytes of code 48

Compare Jit Disasm

; System.Threading.Tests.Perf_CancellationToken.CreateLinkedTokenSource3()
       push      rsi
       sub       rsp,20
       mov       rcx,[rcx+10]
       call      qword ptr [0FF60]
       mov       rsi,rax
       mov       rcx,offset MT_System.Threading.CancellationTokenSource
       cmp       [rsi],rcx
       jne       short 000000000000F8DD
       mov       rcx,rsi
       mov       edx,1
       call      qword ptr [27C8]
       mov       rcx,rsi
       add       rsp,20
       pop       rsi
       jmp       qword ptr [0BAC8]
       mov       rcx,rsi
       mov       edx,1
       mov       rax,[rsi]
       mov       rax,[rax+40]
       call      qword ptr [rax+28]
       jmp       short 000000000000F8CF
; Total bytes of code 81

; System.Threading.CancellationTokenSource.CreateLinkedTokenSource(System.Threading.CancellationToken[])
       push      rdi
       push      rsi
       sub       rsp,28
       mov       rsi,rcx
       test      rsi,rsi
       je        short 000000000000F95C
       mov       edi,[rsi+8]
       cmp       edi,2
       ja        near ptr 000000000000F9D9
       mov       ecx,edi
       lea       rax,[0FA08]
       mov       eax,[rax+rcx*4]
       lea       rdx,[0F919]
       add       rax,rdx
       jmp       rax
       test      edi,edi
       je        near ptr 000000000000F9FF
       mov       rcx,[rsi+10]
       call      qword ptr [0FF48]
       nop
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       mov       ecx,16661
       mov       rdx,7FFF40D64000
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [33F0]
       int       3
       mov       rcx,offset MT_System.ArgumentException
       call      0000000000002AE0
       mov       rdi,rax
       mov       ecx,0AE63
       mov       rdx,7FFF40D64000
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [74E0]
       mov       rdx,rax
       mov       rcx,rdi
       call      qword ptr [0BB88]
       mov       rcx,rdi
       call      0000000000002B00
       test      edi,edi
       je        short 000000000000F9FF
       mov       rcx,[rsi+10]
       cmp       edi,1
       jbe       short 000000000000F9FF
       mov       rdx,[rsi+18]
       call      qword ptr [0FF30]
       jmp       near ptr 000000000000F954
       mov       rcx,offset MT_System.Threading.CancellationTokenSource+LinkedNCancellationTokenSource
       call      0000000000002AE0
       mov       rdi,rax
       mov       rcx,rdi
       mov       rdx,rsi
       call      qword ptr [17E0]
       mov       rax,rdi
       jmp       near ptr 000000000000F954
       call      000000000000AB50
       int       3
; Total bytes of code 245

; System.Threading.CancellationTokenSource.Dispose(Boolean)
       push      rdi
       push      rsi
       push      rbp
       push      rbx
       sub       rsp,28
       mov       rsi,rcx
       test      dl,dl
       je        short 000000000000FC8F
       cmp       byte ptr [rsi+24],0
       jne       short 000000000000FC8F
       mov       rcx,[rsi+8]
       test      rcx,rcx
       jne       short 000000000000FC98
       xor       ecx,ecx
       mov       [rsi+18],rcx
       cmp       qword ptr [rsi+10],0
       jne       short 000000000000FCC9
       mov       byte ptr [rsi+24],1
       add       rsp,28
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       ret
       xor       eax,eax
       mov       [rsi+8],rax
       call      qword ptr [50D8]
       jmp       short 000000000000FC7E
       mov       rcx,rbx
       mov       edx,1
       mov       rax,[rbp+40]
       call      qword ptr [rax+30]
       mov       rcx,rbx
       call      qword ptr [0BAC8]
       mov       rcx,rdi
       call      qword ptr [0BAC8]
       jmp       short 000000000000FC8B
       lea       rcx,[rsi+10]
       xor       edx,edx
       call      000000000000EB70
       mov       rdi,rax
       test      rdi,rdi
       je        short 000000000000FC8B
       cmp       dword ptr [rsi+20],1
       je        short 000000000000FC8B
       mov       rbx,[rdi+8]
       test      rbx,rbx
       je        short 000000000000FCBE
       mov       rbp,[rbx]
       mov       rcx,offset MT_Microsoft.Win32.SafeHandles.SafeFileHandle
       cmp       rbp,rcx
       jne       short 000000000000FCA6
       mov       rcx,rbx
       mov       edx,1
       call      qword ptr [93C0]
       jmp       short 000000000000FCB5
; Total bytes of code 173

; System.GC.SuppressFinalize(System.Object)
       sub       rsp,28
       test      rcx,rcx
       je        short 000000000000F242
       add       rsp,28
       jmp       near ptr 0000000000000FB0
       mov       ecx,135D
       mov       rdx,7FFF40D64000
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [33F0]
       int       3
; Total bytes of code 48

System.Threading.Tests.Perf_CancellationToken.RegisterAndUnregister_Serial

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 57.9490610655706 > 48.37367566472857.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -10.041342702297701 (T) = (0 -54.135875377103524) / Math.Sqrt((3.5988776099298634 / (20)) + (15.482704731650589 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.16234443216891647 = (46.57472766147882 - 54.135875377103524) / 46.57472766147882 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Threading.Tests.Perf_CancellationToken.RegisterAndUnregister_Serial()
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,30
       xor       eax,eax
       mov       [rsp+20],rax
       mov       [rsp+28],rax
       cmp       [rcx],cl
       add       rcx,18
       mov       rsi,rcx
       mov       rcx,164488088A0
       mov       r8,[rcx]
       test      r8,r8
       jne       short 000000000000F479
       mov       rcx,offset MT_System.Action
       call      000000000000C390
       mov       rdi,rax
       mov       rdx,16448808898
       mov       rdx,[rdx]
       lea       rcx,[rdi+8]
       call      0000000000000010
       mov       rdx,offset System.Threading.Tests.Perf_CancellationToken+<>c.<RegisterAndUnregister_Serial>b__5_0()
       mov       [rdi+18],rdx
       mov       rcx,164488088A0
       mov       rdx,rdi
       call      0000000000000010
       mov       r8,rdi
       lea       rdx,[rsp+20]
       mov       rcx,rsi
       xor       r9d,r9d
       call      qword ptr [15A0]
       mov       rsi,[rsp+20]
       test      rsi,rsi
       jne       short 000000000000F49C
       add       rsp,30
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       rcx,[rsi+8]
       mov       rdx,[rsp+28]
       mov       r8,rsi
       cmp       [rcx],ecx
       call      qword ptr [3030]
       test      eax,eax
       jne       short 000000000000F494
       mov       rdi,[rsp+28]
       mov       rax,[rsi+8]
       mov       rax,[rax+8]
       cmp       dword ptr [rax+20],0
       je        short 000000000000F494
       cmp       dword ptr [rax+20],2
       je        short 000000000000F494
       mov       rax,[rsi+8]
       mov       ebx,[rax+30]
       call      000000000000A600
       cmp       ebx,eax
       je        short 000000000000F494
       mov       rcx,[rsi+8]
       mov       rdx,rdi
       cmp       [rcx],ecx
       call      qword ptr [3060]
       jmp       short 000000000000F494
; Total bytes of code 238

; System.Threading.CancellationToken.Register(System.Action, Boolean)
       push      r14
       push      rdi
       push      rsi
       push      rbp
       push      rbx
       sub       rsp,30
       mov       rsi,rcx
       mov       rdi,rdx
       mov       rbx,r8
       mov       ebp,r9d
       test      rbx,rbx
       je        near ptr 000000000000F5DB
       mov       rcx,164488007F0
       mov       r8,[rcx]
       test      r8,r8
       je        short 000000000000F58E
       movzx     ecx,bpl
       mov       [rsp+20],ecx
       mov       dword ptr [rsp+28],1
       mov       rcx,rsi
       mov       rdx,rdi
       mov       r9,rbx
       call      qword ptr [1630]
       mov       rax,rdi
       add       rsp,30
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       pop       r14
       ret
       mov       rcx,offset MT_System.Action`1[[System.Object, System.Private.CoreLib]]
       call      000000000000C390
       mov       r14,rax
       mov       rdx,164488007E8
       mov       rdx,[rdx]
       lea       rcx,[r14+8]
       call      0000000000000010
       mov       rdx,offset System.Threading.CancellationToken+<>c.<Register>b__12_0(System.Object)
       mov       [r14+18],rdx
       mov       rcx,164488007F0
       mov       rdx,r14
       call      0000000000000010
       mov       r8,r14
       jmp       short 000000000000F561
       mov       ecx,165DD
       mov       rdx,7FFF40C74000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [33F0]
       int       3
; Total bytes of code 201

; System.Threading.CancellationTokenSource+Registrations.Unregister(Int64, CallbackNode)
       push      rbp
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,28
       lea       rbp,[rsp+40]
       mov       [rbp+0FFE0],rsp
       mov       [rbp+10],rcx
       mov       rdi,rdx
       mov       rsi,r8
       test      rdi,rdi
       je        near ptr 000000000000FC75
       cmp       [rcx],cl
       lea       rbx,[rcx+34]
       mov       rax,rbx
       mov       edx,1
       xchg      edx,[rax]
       test      edx,edx
       jne       near ptr 000000000000FC67
       cmp       [rsi+40],rdi
       jne       short 000000000000FBEB
       mov       rcx,[rbp+10]
       cmp       [rcx+10],rsi
       jne       short 000000000000FC02
       mov       rdx,[rsi+18]
       lea       rcx,[rcx+10]
       call      0000000000000010
       jmp       short 000000000000FC13
       xor       eax,eax
       jmp       short 000000000000FC5A
       mov       rdx,[rsi+18]
       lea       rcx,[rdx+10]
       mov       rdx,[rsi+10]
       call      0000000000000010
       jmp       short 000000000000FC1A
       mov       rdx,[rsi+10]
       lea       rcx,[rdx+18]
       mov       rdx,[rsi+18]
       call      0000000000000010
       cmp       qword ptr [rsi+18],0
       jne       short 000000000000FBEF
       xor       edx,edx
       mov       [rsi+40],rdx
       mov       [rsi+20],rdx
       mov       [rsi+28],rdx
       mov       [rsi+30],rdx
       mov       [rsi+38],rdx
       mov       [rsi+10],rdx
       mov       rcx,[rbp+10]
       mov       rdx,[rcx+18]
       lea       rcx,[rsi+18]
       call      0000000000000010
       mov       rcx,[rbp+10]
       lea       rcx,[rcx+18]
       mov       rdx,rsi
       call      0000000000000010
       mov       eax,1
       xor       edx,edx
       mov       [rbx],edx
       add       rsp,28
       pop       rbx
       pop       rsi
       pop       rdi
       pop       rbp
       ret
       mov       rcx,rax
       call      qword ptr [30C0]
       jmp       near ptr 000000000000FBCC
       xor       eax,eax
       add       rsp,28
       pop       rbx
       pop       rsi
       pop       rdi
       pop       rbp
       ret
       push      rbp
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,28
       mov       rbp,[rcx+20]
       mov       [rsp+20],rbp
       lea       rbp,[rbp+40]
       mov       rcx,[rbp+10]
       lea       rbx,[rcx+34]
       xor       eax,eax
       mov       [rbx],eax
       add       rsp,28
       pop       rbx
       pop       rsi
       pop       rdi
       pop       rbp
       ret
; Total bytes of code 282

Compare Jit Disasm

; System.Threading.Tests.Perf_CancellationToken.RegisterAndUnregister_Serial()
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,30
       xor       eax,eax
       mov       [rsp+20],rax
       mov       [rsp+28],rax
       cmp       [rcx],cl
       add       rcx,18
       mov       rsi,rcx
       mov       rcx,28D470088A0
       mov       r8,[rcx]
       test      r8,r8
       jne       short 000000000000F479
       mov       rcx,offset MT_System.Action
       call      0000000000002AE0
       mov       rdi,rax
       mov       rdx,28D47008898
       mov       rdx,[rdx]
       lea       rcx,[rdi+8]
       call      0000000000000010
       mov       rdx,offset System.Threading.Tests.Perf_CancellationToken+<>c.<RegisterAndUnregister_Serial>b__5_0()
       mov       [rdi+18],rdx
       mov       rcx,28D470088A0
       mov       rdx,rdi
       call      0000000000000010
       mov       r8,rdi
       lea       rdx,[rsp+20]
       mov       rcx,rsi
       xor       r9d,r9d
       call      qword ptr [15A0]
       mov       rsi,[rsp+20]
       test      rsi,rsi
       jne       short 000000000000F49C
       add       rsp,30
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       rcx,[rsi+8]
       mov       rdx,[rsp+28]
       mov       r8,rsi
       cmp       [rcx],ecx
       call      qword ptr [3030]
       test      eax,eax
       jne       short 000000000000F494
       mov       rdi,[rsp+28]
       mov       rax,[rsi+8]
       mov       rax,[rax+8]
       cmp       dword ptr [rax+20],0
       je        short 000000000000F494
       cmp       dword ptr [rax+20],2
       je        short 000000000000F494
       mov       rax,[rsi+8]
       mov       ebx,[rax+30]
       call      0000000000009E60
       cmp       ebx,eax
       je        short 000000000000F494
       mov       rcx,[rsi+8]
       mov       rdx,rdi
       cmp       [rcx],ecx
       call      qword ptr [3060]
       jmp       short 000000000000F494
; Total bytes of code 238

; System.Threading.CancellationToken.Register(System.Action, Boolean)
       push      r14
       push      rdi
       push      rsi
       push      rbp
       push      rbx
       sub       rsp,30
       mov       rsi,rcx
       mov       rdi,rdx
       mov       rbx,r8
       mov       ebp,r9d
       test      rbx,rbx
       je        near ptr 000000000000F5DB
       mov       rcx,28D470007F0
       mov       r8,[rcx]
       test      r8,r8
       je        short 000000000000F58E
       movzx     ecx,bpl
       mov       [rsp+20],ecx
       mov       dword ptr [rsp+28],1
       mov       rcx,rsi
       mov       rdx,rdi
       mov       r9,rbx
       call      qword ptr [1630]
       mov       rax,rdi
       add       rsp,30
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       pop       r14
       ret
       mov       rcx,offset MT_System.Action`1[[System.Object, System.Private.CoreLib]]
       call      0000000000002AE0
       mov       r14,rax
       mov       rdx,28D470007E8
       mov       rdx,[rdx]
       lea       rcx,[r14+8]
       call      0000000000000010
       mov       rdx,offset System.Threading.CancellationToken+<>c.<Register>b__12_0(System.Object)
       mov       [r14+18],rdx
       mov       rcx,28D470007F0
       mov       rdx,r14
       call      0000000000000010
       mov       r8,r14
       jmp       short 000000000000F561
       mov       ecx,1664F
       mov       rdx,7FFA83714000
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [33F0]
       int       3
; Total bytes of code 201

; System.Threading.CancellationTokenSource+Registrations.Unregister(Int64, CallbackNode)
       push      rbp
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,28
       lea       rbp,[rsp+40]
       mov       [rbp+0FFE0],rsp
       mov       [rbp+10],rcx
       mov       rdi,rdx
       mov       rsi,r8
       test      rdi,rdi
       je        near ptr 000000000000FC75
       cmp       [rcx],cl
       lea       rbx,[rcx+34]
       mov       rax,rbx
       mov       edx,1
       xchg      edx,[rax]
       test      edx,edx
       jne       near ptr 000000000000FC67
       cmp       [rsi+40],rdi
       jne       short 000000000000FBEB
       mov       rcx,[rbp+10]
       cmp       [rcx+10],rsi
       jne       short 000000000000FC02
       mov       rdx,[rsi+18]
       lea       rcx,[rcx+10]
       call      0000000000000010
       jmp       short 000000000000FC13
       xor       eax,eax
       jmp       short 000000000000FC5A
       mov       rdx,[rsi+18]
       lea       rcx,[rdx+10]
       mov       rdx,[rsi+10]
       call      0000000000000010
       jmp       short 000000000000FC1A
       mov       rdx,[rsi+10]
       lea       rcx,[rdx+18]
       mov       rdx,[rsi+18]
       call      0000000000000010
       cmp       qword ptr [rsi+18],0
       jne       short 000000000000FBEF
       xor       edx,edx
       mov       [rsi+40],rdx
       mov       [rsi+20],rdx
       mov       [rsi+28],rdx
       mov       [rsi+30],rdx
       mov       [rsi+38],rdx
       mov       [rsi+10],rdx
       mov       rcx,[rbp+10]
       mov       rdx,[rcx+18]
       lea       rcx,[rsi+18]
       call      0000000000000010
       mov       rcx,[rbp+10]
       lea       rcx,[rcx+18]
       mov       rdx,rsi
       call      0000000000000010
       mov       eax,1
       xor       edx,edx
       mov       [rbx],edx
       add       rsp,28
       pop       rbx
       pop       rsi
       pop       rdi
       pop       rbp
       ret
       mov       rcx,rax
       call      qword ptr [30C0]
       jmp       near ptr 000000000000FBCC
       xor       eax,eax
       add       rsp,28
       pop       rbx
       pop       rsi
       pop       rdi
       pop       rbp
       ret
       push      rbp
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,28
       mov       rbp,[rcx+20]
       mov       [rsp+20],rbp
       lea       rbp,[rbp+40]
       mov       rcx,[rbp+10]
       lea       rbx,[rcx+34]
       xor       eax,eax
       mov       [rbx],eax
       add       rsp,28
       pop       rbx
       pop       rsi
       pop       rdi
       pop       rbp
       ret
; Total bytes of code 282

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

### Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Tests.Perf_Int64

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ToString - Duration of single invocation	13.07 ns	15.03 ns	1.15	0.03	False	157.27229615454024	167.61846627453883	1.065785077047722	Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_Int64*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Int64.ToString(value: 12345)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 15.030204856429826 > 13.534769624503234.
IsChangePoint: Marked as a change because one of 6/27/2022 8:54:23 AM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -46.10523961072432 (T) = (0 -15.245007009266734) / Math.Sqrt((0.026690086968810093 / (20)) + (0.03828888417885378 / (39))) is less than -2.0024654592901125 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (39) - 2, .025) and -0.17034583399241562 = (13.026070214870803 - 15.245007009266734) / 13.026070214870803 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Tests.Perf_Int64.ToString(Int64)
       sub       rsp,28
       mov       rcx,rdx
       call      qword ptr [9450]
       nop
       add       rsp,28
       ret
; Total bytes of code 19

; System.Number.Int64ToDecStr(Int64)
       push      rsi
       sub       rsp,20
       mov       rsi,rcx
       test      rsi,rsi
       jge       short 000000000000F41A
       call      qword ptr [5858]
       mov       r8,[rax+28]
       mov       rcx,rsi
       mov       edx,0FFFFFFFF
       add       rsp,20
       pop       rsi
       jmp       qword ptr [9468]
       mov       rcx,rsi
       add       rsp,20
       pop       rsi
       jmp       qword ptr [9540]
; Total bytes of code 56

Compare Jit Disasm

; System.Tests.Perf_Int64.ToString(Int64)
       sub       rsp,28
       mov       rcx,rdx
       call      qword ptr [9450]
       nop
       add       rsp,28
       ret
; Total bytes of code 19

; System.Number.Int64ToDecStr(Int64)
       push      rsi
       sub       rsp,20
       mov       rsi,rcx
       test      rsi,rsi
       jge       short 000000000000F41A
       call      qword ptr [5858]
       mov       r8,[rax+28]
       mov       rcx,rsi
       mov       edx,0FFFFFFFF
       add       rsp,20
       pop       rsi
       jmp       qword ptr [9468]
       mov       rcx,rsi
       add       rsp,20
       pop       rsi
       jmp       qword ptr [9540]
; Total bytes of code 56

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in Benchstone.BenchI.NDhrystone

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Test - Duration of single invocation	389.18 ms	438.41 ms	1.13	0.19	False	4004666666.6666665	4279333333.3333335	1.0685866489096056	Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'Benchstone.BenchI.NDhrystone*'

Payloads

Baseline
Compare

Histogram

Benchstone.BenchI.NDhrystone.Test

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 438.4080928571429 > 409.78875.
IsChangePoint: Marked as a change because one of 7/29/2022 9:55:54 PM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -12.80327022759974 (T) = (0 -448023717.6978022) / Math.Sqrt((113336535208627.9 / (20)) + (294266253459614.44 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.11498834090112595 = (401819195.1098901 - 448023717.6978022) / 401819195.1098901 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; BenchmarkDotNet.Autogenerated.Runnable_0.__ForDisassemblyDiagnoser__()
       push      rbp
       sub       rsp,20
       lea       rbp,[rsp+20]
       mov       [rbp+10],rcx
       mov       rcx,[rbp+10]
       cmp       dword ptr [rcx+40],0B
       jne       short 0000000000005A69
       mov       rcx,[rbp+10]
       call      qword ptr [0B258]
       nop
       add       rsp,20
       pop       rbp
       ret
       xor       eax,eax
       add       rsp,20
       pop       rbp
       ret
; Total bytes of code 49

Compare Jit Disasm

; BenchmarkDotNet.Autogenerated.Runnable_0.__ForDisassemblyDiagnoser__()
       push      rbp
       sub       rsp,20
       lea       rbp,[rsp+20]
       mov       [rbp+10],rcx
       mov       rcx,[rbp+10]
       cmp       dword ptr [rcx+40],0B
       jne       short 0000000000005AE9
       mov       rcx,[rbp+10]
       call      qword ptr [0B258]
       nop
       add       rsp,20
       pop       rbp
       ret
       xor       eax,eax
       add       rsp,20
       pop       rbp
       ret
; Total bytes of code 49

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Tests.Perf_Object

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
GetType_ - Duration of single invocation	0.83 ns	2.18 ns	2.63	0.50	False	20.15266211047425	22.183521472429252	1.1007737514191474	Trace	Trace
ctor - Duration of single invocation	2.27 ns	4.72 ns	2.08	0.31	False	28.065070967930435	39.28148150191385	1.3996573016615654	Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_Object*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Object.GetType_

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 2.1799783824609267 > 0.9349834219857247.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -19.695475919555207 (T) = (0 -2.2447278247228977) / Math.Sqrt((0.08276760817485616 / (20)) + (0.021901318749257315 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -1.5038821252896595 = (0.8964990013111013 - 2.2447278247228977) / 0.8964990013111013 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Tests.Perf_Object.GetType_()
       sub       rsp,28
       mov       rcx,[rcx+8]
       call      000000000000B080
       nop
       add       rsp,28
       ret
; Total bytes of code 19

Compare Jit Disasm

; System.Tests.Perf_Object.GetType_()
       sub       rsp,28
       mov       rcx,[rcx+8]
       call      000000000000CAB0
       nop
       add       rsp,28
       ret
; Total bytes of code 19

System.Tests.Perf_Object.ctor

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 4.723818946192575 > 2.4501735953594044.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -50.840910442960265 (T) = (0 -4.431940781746897) / Math.Sqrt((0.012452771421806178 / (20)) + (0.03961439995167622 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.8543217160725144 = (2.3900603349098586 - 4.431940781746897) / 2.3900603349098586 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Tests.Perf_Object.ctor()
       sub       rsp,28
       mov       rcx,offset MT_System.Object
       call      000000000000C390
       nop
       add       rsp,28
       ret
; Total bytes of code 25

Compare Jit Disasm

; System.Tests.Perf_Object.ctor()
       sub       rsp,28
       mov       rcx,offset MT_System.Object
       call      0000000000002AE0
       nop
       add       rsp,28
       ret
; Total bytes of code 25

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

[performanceautofiler]

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in PerfLabTests.CastingPerf2.CastingPerf

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ObjObjrefValueType - Duration of single invocation	878.00 μs	1.14 ms	1.30	0.30	False	7413020.833333333	8922916.666666666	1.20368158504883	Trace	Trace
FooObjCastIfIsa - Duration of single invocation	376.90 μs	524.17 μs	1.39	0.00	False	3729791.6666666665	4340660.91954023	1.1637810653964757	Trace	Trace
IFooObjIsIFooInterAlia - Duration of single invocation	405.38 μs	509.17 μs	1.26	0.01	False	3631517.0940170935	4240277.777777778	1.1676326086316968	Trace	Trace
FooObjIsFoo - Duration of single invocation	561.78 μs	883.08 μs	1.57	0.00	False				Trace	Trace
IFooObjIsDescendantOfIFoo - Duration of single invocation	575.56 μs	665.48 μs	1.16	0.01	False				Trace	Trace
ObjScalarValueType - Duration of single invocation	476.81 μs	681.10 μs	1.43	0.07	False	4284895.833333334	5798913.043478261	1.3533381601407874	Trace	Trace
FooObjIsDescendant - Duration of single invocation	498.94 μs	608.42 μs	1.22	0.02	False				Trace	Trace
ObjFooIsObj - Duration of single invocation	374.22 μs	627.40 μs	1.68	0.04	False	3622193.8775510206	4842013.888888889	1.3367627610708108	Trace	Trace
ObjInt - Duration of single invocation	528.90 μs	665.96 μs	1.26	0.10	False	4072526.0416666665	5584375	1.3712312561946478	Trace	Trace
IFooFooIsIFoo - Duration of single invocation	374.25 μs	626.97 μs	1.68	0.04	False	3622363.9455782315	4842187.5	1.3367479283551256	Trace	Trace
IFooObjIsIFoo - Duration of single invocation	575.62 μs	665.12 μs	1.16	0.01	False				Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'PerfLabTests.CastingPerf2.CastingPerf*'

Payloads

Baseline
Compare

Histogram

PerfLabTests.CastingPerf2.CastingPerf.ObjObjrefValueType

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 1.1391391900510204 > 900.9220707236843.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -17.125347528166426 (T) = (0 -1123717.8201736766) / Math.Sqrt((3485394152.678112 / (20)) + (2201957829.150149 / (39))) is less than -2.0024654592901125 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (39) - 2, .025) and -0.3012211183996397 = (863587.136946968 - 1123717.8201736766) / 863587.136946968 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; PerfLabTests.CastingPerf2.CastingPerf.ObjObjrefValueType()
       push      r15
       push      r14
       push      rdi
       push      rsi
       push      rbp
       push      rbx
       sub       rsp,28
       xor       ebx,ebx
       mov       rbp,7FF8E7B1BD7C
       cmp       dword ptr [rbp],0
       jle       short 000000000000F4EB
       mov       r14,offset MT_PerfLabTests.CastingPerf2.FooORVT
       mov       rcx,r14
       call      000000000000C390
       mov       r15,rax
       mov       rax,11E05C07F90
       mov       rsi,[rax]
       add       rsi,8
       lea       rdi,[r15+8]
       call      000000000000C000
       call      000000000000C000
       mov       rcx,11E05C07FB8
       mov       rdx,r15
       call      0000000000000010
       inc       ebx
       cmp       ebx,[rbp]
       jl        short 000000000000F4A8
       add       rsp,28
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       pop       r14
       pop       r15
       ret
; Total bytes of code 120

Compare Jit Disasm

; PerfLabTests.CastingPerf2.CastingPerf.ObjObjrefValueType()
       push      r15
       push      r14
       push      rdi
       push      rsi
       push      rbp
       push      rbx
       sub       rsp,28
       xor       ebx,ebx
       mov       rbp,7FFB26E0BEC4
       cmp       dword ptr [rbp],0
       jle       short 000000000000F4EB
       mov       r14,offset MT_PerfLabTests.CastingPerf2.FooORVT
       mov       rcx,r14
       call      0000000000002AE0
       mov       r15,rax
       mov       rax,2044CC07F90
       mov       rsi,[rax]
       add       rsi,8
       lea       rdi,[r15+8]
       call      0000000000002430
       call      0000000000002430
       mov       rcx,2044CC07FB8
       mov       rdx,r15
       call      0000000000000010
       inc       ebx
       cmp       ebx,[rbp]
       jl        short 000000000000F4A8
       add       rsp,28
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       pop       r14
       pop       r15
       ret
; Total bytes of code 120

PerfLabTests.CastingPerf2.CastingPerf.FooObjCastIfIsa

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 524.1727083333333 > 398.75557562064455.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -165.8697536770946 (T) = (0 -528002.66788663) / Math.Sqrt((3657315.0819472065 / (20)) + (24229640.866787057 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.3869095797678901 = (380704.46378703025 - 528002.66788663) / 380704.46378703025 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; PerfLabTests.CastingPerf2.CastingPerf.FooObjCastIfIsa()
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       xor       esi,esi
       mov       edi,[0BD7C]
       test      edi,edi
       jle       short 000000000000F530
       mov       rdx,1B80E807FB8
       mov       rbx,[rdx]
       mov       rdx,rbx
       mov       rcx,offset MT_PerfLabTests.CastingPerf2.Foo
       call      qword ptr [0B828]
       test      rax,rax
       je        short 000000000000F52A
       mov       rdx,rbx
       mov       rax,rdx
       test      rax,rax
       je        short 000000000000F518
       mov       rcx,offset MT_PerfLabTests.CastingPerf2.Foo
       cmp       [rax],rcx
       je        short 000000000000F518
       call      qword ptr [0B8B8]
       mov       rcx,1B80E808008
       mov       rdx,rax
       call      0000000000000010
       inc       esi
       cmp       esi,edi
       jl        short 000000000000F4D3
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 120

; System.Runtime.CompilerServices.CastHelpers.IsInstanceOfClass(Void*, System.Object)
       mov       rax,rdx
       test      rax,rax
       je        short 000000000000F3CD
       cmp       [rax],rcx
       jne       short 000000000000F3CE
       ret
       mov       rdx,[rax]
       mov       rdx,[rdx+10]
       cmp       rdx,rcx
       je        short 000000000000F40B
       test      rdx,rdx
       je        short 000000000000F409
       mov       rdx,[rdx+10]
       cmp       rdx,rcx
       je        short 000000000000F40B
       test      rdx,rdx
       je        short 000000000000F409
       mov       rdx,[rdx+10]
       cmp       rdx,rcx
       je        short 000000000000F40B
       test      rdx,rdx
       je        short 000000000000F409
       mov       rdx,[rdx+10]
       cmp       rdx,rcx
       je        short 000000000000F40B
       test      rdx,rdx
       jne       short 000000000000F40C
       xor       eax,eax
       ret
       mov       rdx,[rdx+10]
       jmp       short 000000000000F3D5
; Total bytes of code 82

Compare Jit Disasm

; PerfLabTests.CastingPerf2.CastingPerf.FooObjCastIfIsa()
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       xor       esi,esi
       mov       edi,[0BEC4]
       test      edi,edi
       jle       short 000000000000F530
       mov       rdx,1676E807FB8
       mov       rbx,[rdx]
       mov       rdx,rbx
       mov       rcx,offset MT_PerfLabTests.CastingPerf2.Foo
       call      qword ptr [0B828]
       test      rax,rax
       je        short 000000000000F52A
       mov       rdx,rbx
       mov       rax,rdx
       test      rax,rax
       je        short 000000000000F518
       mov       rcx,offset MT_PerfLabTests.CastingPerf2.Foo
       cmp       [rax],rcx
       je        short 000000000000F518
       call      qword ptr [0B8B8]
       mov       rcx,1676E808008
       mov       rdx,rax
       call      0000000000000010
       inc       esi
       cmp       esi,edi
       jl        short 000000000000F4D3
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 120

; System.Runtime.CompilerServices.CastHelpers.IsInstanceOfClass(Void*, System.Object)
       mov       rax,rdx
       test      rax,rax
       je        short 000000000000F3CD
       cmp       [rax],rcx
       jne       short 000000000000F3CE
       ret
       mov       rdx,[rax]
       mov       rdx,[rdx+10]
       cmp       rdx,rcx
       je        short 000000000000F40B
       test      rdx,rdx
       je        short 000000000000F409
       mov       rdx,[rdx+10]
       cmp       rdx,rcx
       je        short 000000000000F40B
       test      rdx,rdx
       je        short 000000000000F409
       mov       rdx,[rdx+10]
       cmp       rdx,rcx
       je        short 000000000000F40B
       test      rdx,rdx
       je        short 000000000000F409
       mov       rdx,[rdx+10]
       cmp       rdx,rcx
       je        short 000000000000F40B
       test      rdx,rdx
       jne       short 000000000000F40C
       xor       eax,eax
       ret
       mov       rdx,[rdx+10]
       jmp       short 000000000000F3D5
; Total bytes of code 82

PerfLabTests.CastingPerf2.CastingPerf.IFooObjIsIFooInterAlia

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 509.1674479166667 > 427.4255445884147.
IsChangePoint: Marked as a change because one of 6/27/2022 8:54:23 AM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -70.49905772316129 (T) = (0 -509829.5039003499) / Math.Sqrt((32591712.10144398 / (20)) + (4344600.95914772 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.22295597932408484 = (416882.9561486975 - 509829.5039003499) / 416882.9561486975 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; PerfLabTests.CastingPerf2.CastingPerf.IFooObjIsIFooInterAlia()
       push      rdi
       push      rsi
       sub       rsp,28
       xor       esi,esi
       mov       edi,[0BD7C]
       test      edi,edi
       jle       short 000000000000F447
       mov       rdx,20CB2C07FB8
       mov       rdx,[rdx]
       mov       rcx,offset MT_PerfLabTests.CastingPerf2.IFoo_5
       call      qword ptr [0B888]
       mov       rcx,20CB2C080A8
       mov       rdx,rax
       call      0000000000000010
       inc       esi
       cmp       esi,edi
       jl        short 000000000000F412
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 78

; System.Runtime.CompilerServices.CastHelpers.ChkCastInterface(Void*, System.Object)
       test      rdx,rdx
       je        short 000000000000F3B3
       mov       rax,[rdx]
       movzx     r8d,word ptr [rax+0E]
       test      r8,r8
       je        short 000000000000F3DB
       mov       rax,[rax+38]
       cmp       r8,4
       jl        short 000000000000F3CA
       cmp       [rax],rcx
       je        short 000000000000F3B3
       cmp       [rax+8],rcx
       je        short 000000000000F3B3
       cmp       [rax+10],rcx
       je        short 000000000000F3B3
       cmp       [rax+18],rcx
       jne       short 000000000000F3B7
       mov       rax,rdx
       ret
       add       rax,20
       add       r8,0FFFFFFFFFFFFFFFC
       cmp       r8,4
       jge       short 000000000000F39C
       test      r8,r8
       je        short 000000000000F3DB
       cmp       [rax],rcx
       je        short 000000000000F3B3
       add       rax,8
       dec       r8
       test      r8,r8
       jg        short 000000000000F3CA
       jmp       qword ptr [0B870]
; Total bytes of code 97

Compare Jit Disasm

; PerfLabTests.CastingPerf2.CastingPerf.IFooObjIsIFooInterAlia()
       push      rdi
       push      rsi
       sub       rsp,28
       xor       esi,esi
       mov       edi,[0BEC4]
       test      edi,edi
       jle       short 000000000000F447
       mov       rdx,1E6A1407FB8
       mov       rdx,[rdx]
       mov       rcx,offset MT_PerfLabTests.CastingPerf2.IFoo_5
       call      qword ptr [0B888]
       mov       rcx,1E6A14080A8
       mov       rdx,rax
       call      0000000000000010
       inc       esi
       cmp       esi,edi
       jl        short 000000000000F412
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 78

; System.Runtime.CompilerServices.CastHelpers.ChkCastInterface(Void*, System.Object)
       test      rdx,rdx
       je        short 000000000000F3B3
       mov       rax,[rdx]
       movzx     r8d,word ptr [rax+0E]
       test      r8,r8
       je        short 000000000000F3DB
       mov       rax,[rax+38]
       cmp       r8,4
       jl        short 000000000000F3CA
       cmp       [rax],rcx
       je        short 000000000000F3B3
       cmp       [rax+8],rcx
       je        short 000000000000F3B3
       cmp       [rax+10],rcx
       je        short 000000000000F3B3
       cmp       [rax+18],rcx
       jne       short 000000000000F3B7
       mov       rax,rdx
       ret
       add       rax,20
       add       r8,0FFFFFFFFFFFFFFFC
       cmp       r8,4
       jge       short 000000000000F39C
       test      r8,r8
       je        short 000000000000F3DB
       cmp       [rax],rcx
       je        short 000000000000F3B3
       add       rax,8
       dec       r8
       test      r8,r8
       jg        short 000000000000F3CA
       jmp       qword ptr [0B870]
; Total bytes of code 97

PerfLabTests.CastingPerf2.CastingPerf.FooObjIsFoo

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 883.0788442460317 > 589.9029657451923.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -164.22334926378088 (T) = (0 -878366.8063169323) / Math.Sqrt((41381319.79497726 / (20)) + (55647551.368918724 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.5332408455364337 = (572882.4723617501 - 878366.8063169323) / 572882.4723617501 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; PerfLabTests.CastingPerf2.CastingPerf.FooObjIsFoo()
       push      rdi
       push      rsi
       sub       rsp,28
       xor       esi,esi
       mov       edi,[0BD78]
       test      edi,edi
       jle       short 000000000000F454
       mov       rcx,1C866807FB8
       mov       rdx,[rcx]
       mov       rax,rdx
       test      rax,rax
       je        short 000000000000F43C
       mov       rcx,offset MT_PerfLabTests.CastingPerf2.Foo
       cmp       [rax],rcx
       je        short 000000000000F43C
       call      qword ptr [0B8B8]
       mov       rcx,1C866808008
       mov       rdx,rax
       call      0000000000000010
       inc       esi
       cmp       esi,edi
       jl        short 000000000000F412
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 91

Compare Jit Disasm

; PerfLabTests.CastingPerf2.CastingPerf.FooObjIsFoo()
       push      rdi
       push      rsi
       sub       rsp,28
       xor       esi,esi
       mov       edi,[0BEC0]
       test      edi,edi
       jle       short 000000000000F454
       mov       rcx,1B7E4807FB8
       mov       rdx,[rcx]
       mov       rax,rdx
       test      rax,rax
       je        short 000000000000F43C
       mov       rcx,offset MT_PerfLabTests.CastingPerf2.Foo
       cmp       [rax],rcx
       je        short 000000000000F43C
       call      qword ptr [0B8B8]
       mov       rcx,1B7E4808008
       mov       rdx,rax
       call      0000000000000010
       inc       esi
       cmp       esi,edi
       jl        short 000000000000F412
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 91

PerfLabTests.CastingPerf2.CastingPerf.IFooObjIsDescendantOfIFoo

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 665.4848028273809 > 602.1578515625.
IsChangePoint: Marked as a change because one of 6/27/2022 8:54:23 AM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -53.24307469302879 (T) = (0 -666039.7923968285) / Math.Sqrt((78741016.29123984 / (20)) + (6975495.0586340595 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.19344751641385027 = (558080.5047868286 - 666039.7923968285) / 558080.5047868286 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; PerfLabTests.CastingPerf2.CastingPerf.IFooObjIsDescendantOfIFoo()
       push      rdi
       push      rsi
       sub       rsp,28
       xor       esi,esi
       mov       edi,[0BD7C]
       test      edi,edi
       jle       short 000000000000F447
       mov       rdx,2237F807FB8
       mov       rdx,[rdx]
       mov       rcx,offset MT_PerfLabTests.CastingPerf2.IFoo
       call      qword ptr [0B888]
       mov       rcx,2237F808058
       mov       rdx,rax
       call      0000000000000010
       inc       esi
       cmp       esi,edi
       jl        short 000000000000F412
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 78

; System.Runtime.CompilerServices.CastHelpers.ChkCastInterface(Void*, System.Object)
       test      rdx,rdx
       je        short 000000000000F3B3
       mov       rax,[rdx]
       movzx     r8d,word ptr [rax+0E]
       test      r8,r8
       je        short 000000000000F3DB
       mov       rax,[rax+38]
       cmp       r8,4
       jl        short 000000000000F3CA
       cmp       [rax],rcx
       je        short 000000000000F3B3
       cmp       [rax+8],rcx
       je        short 000000000000F3B3
       cmp       [rax+10],rcx
       je        short 000000000000F3B3
       cmp       [rax+18],rcx
       jne       short 000000000000F3B7
       mov       rax,rdx
       ret
       add       rax,20
       add       r8,0FFFFFFFFFFFFFFFC
       cmp       r8,4
       jge       short 000000000000F39C
       test      r8,r8
       je        short 000000000000F3DB
       cmp       [rax],rcx
       je        short 000000000000F3B3
       add       rax,8
       dec       r8
       test      r8,r8
       jg        short 000000000000F3CA
       jmp       qword ptr [0B870]
; Total bytes of code 97

Compare Jit Disasm

; PerfLabTests.CastingPerf2.CastingPerf.IFooObjIsDescendantOfIFoo()
       push      rdi
       push      rsi
       sub       rsp,28
       xor       esi,esi
       mov       edi,[0BEC4]
       test      edi,edi
       jle       short 000000000000F447
       mov       rdx,1BCA0407FB8
       mov       rdx,[rdx]
       mov       rcx,offset MT_PerfLabTests.CastingPerf2.IFoo
       call      qword ptr [0B888]
       mov       rcx,1BCA0408058
       mov       rdx,rax
       call      0000000000000010
       inc       esi
       cmp       esi,edi
       jl        short 000000000000F412
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 78

; System.Runtime.CompilerServices.CastHelpers.ChkCastInterface(Void*, System.Object)
       test      rdx,rdx
       je        short 000000000000F3B3
       mov       rax,[rdx]
       movzx     r8d,word ptr [rax+0E]
       test      r8,r8
       je        short 000000000000F3DB
       mov       rax,[rax+38]
       cmp       r8,4
       jl        short 000000000000F3CA
       cmp       [rax],rcx
       je        short 000000000000F3B3
       cmp       [rax+8],rcx
       je        short 000000000000F3B3
       cmp       [rax+10],rcx
       je        short 000000000000F3B3
       cmp       [rax+18],rcx
       jne       short 000000000000F3B7
       mov       rax,rdx
       ret
       add       rax,20
       add       r8,0FFFFFFFFFFFFFFFC
       cmp       r8,4
       jge       short 000000000000F39C
       test      r8,r8
       je        short 000000000000F3DB
       cmp       [rax],rcx
       je        short 000000000000F3B3
       add       rax,8
       dec       r8
       test      r8,r8
       jg        short 000000000000F3CA
       jmp       qword ptr [0B870]
; Total bytes of code 97

PerfLabTests.CastingPerf2.CastingPerf.ObjScalarValueType

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 681.0996354166666 > 500.2655113636364.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -29.938535788676802 (T) = (0 -678014.4180947093) / Math.Sqrt((670041318.5030626 / (20)) + (471740200.0290008 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.422839304383032 = (476522.13149165723 - 678014.4180947093) / 476522.13149165723 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; PerfLabTests.CastingPerf2.CastingPerf.ObjScalarValueType()
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       xor       esi,esi
       mov       rdi,7FF9F846BD7C
       cmp       dword ptr [rdi],0
       jle       short 000000000000F4B7
       mov       rbx,offset MT_PerfLabTests.CastingPerf2.FooSVT
       mov       rcx,rbx
       call      000000000000C390
       mov       rdx,183D6007F88
       mov       rdx,[rdx]
       mov       rdx,[rdx+8]
       mov       [rax+8],rdx
       mov       rcx,183D6007FB8
       mov       rdx,rax
       call      0000000000000010
       inc       esi
       cmp       esi,[rdi]
       jl        short 000000000000F482
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 95

Compare Jit Disasm

; PerfLabTests.CastingPerf2.CastingPerf.ObjScalarValueType()
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       xor       esi,esi
       mov       rdi,7FFD64FBBEC4
       cmp       dword ptr [rdi],0
       jle       short 000000000000F4B7
       mov       rbx,offset MT_PerfLabTests.CastingPerf2.FooSVT
       mov       rcx,rbx
       call      0000000000002AE0
       mov       rdx,10693407F88
       mov       rdx,[rdx]
       mov       rdx,[rdx+8]
       mov       [rax+8],rdx
       mov       rcx,10693407FB8
       mov       rdx,rax
       call      0000000000000010
       inc       esi
       cmp       esi,[rdi]
       jl        short 000000000000F482
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 95

PerfLabTests.CastingPerf2.CastingPerf.FooObjIsDescendant

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 608.4169551282052 > 523.9016305588942.
IsChangePoint: Marked as a change because one of 7/6/2022 12:32:56 PM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -122.81543120733322 (T) = (0 -604872.0369152204) / Math.Sqrt((1732567.1671475202 / (20)) + (25849738.21195942 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.2103921534837409 = (499732.28525505774 - 604872.0369152204) / 499732.28525505774 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; PerfLabTests.CastingPerf2.CastingPerf.FooObjIsDescendant()
       push      rdi
       push      rsi
       sub       rsp,28
       xor       esi,esi
       mov       edi,[0BD7C]
       test      edi,edi
       jle       short 000000000000F4B4
       mov       rcx,1863F807FB8
       mov       rdx,[rcx]
       mov       rax,rdx
       test      rax,rax
       je        short 000000000000F49C
       mov       rcx,offset MT_PerfLabTests.CastingPerf2.Foo
       cmp       [rax],rcx
       je        short 000000000000F49C
       call      qword ptr [0B8B8]
       mov       rcx,1863F808008
       mov       rdx,rax
       call      0000000000000010
       inc       esi
       cmp       esi,edi
       jl        short 000000000000F472
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 91

; System.Runtime.CompilerServices.CastHelpers.ChkCastClassSpecial(Void*, System.Object)
       mov       rax,[rdx]
       cmp       rcx,rax
       je        short 000000000000F391
       mov       rax,[rax+10]
       cmp       rax,rcx
       jne       short 000000000000F395
       mov       rax,rdx
       ret
       test      rax,rax
       je        short 000000000000F3C4
       mov       rax,[rax+10]
       cmp       rax,rcx
       je        short 000000000000F391
       test      rax,rax
       je        short 000000000000F3C4
       mov       rax,[rax+10]
       cmp       rax,rcx
       je        short 000000000000F391
       test      rax,rax
       je        short 000000000000F3C4
       mov       rax,[rax+10]
       cmp       rax,rcx
       je        short 000000000000F391
       test      rax,rax
       jne       short 000000000000F388
       jmp       qword ptr [0B870]
; Total bytes of code 74

Compare Jit Disasm

; PerfLabTests.CastingPerf2.CastingPerf.FooObjIsDescendant()
       push      rdi
       push      rsi
       sub       rsp,28
       xor       esi,esi
       mov       edi,[0BEC4]
       test      edi,edi
       jle       short 000000000000F4B4
       mov       rcx,1EECD807FB8
       mov       rdx,[rcx]
       mov       rax,rdx
       test      rax,rax
       je        short 000000000000F49C
       mov       rcx,offset MT_PerfLabTests.CastingPerf2.Foo
       cmp       [rax],rcx
       je        short 000000000000F49C
       call      qword ptr [0B8B8]
       mov       rcx,1EECD808008
       mov       rdx,rax
       call      0000000000000010
       inc       esi
       cmp       esi,edi
       jl        short 000000000000F472
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 91

; System.Runtime.CompilerServices.CastHelpers.ChkCastClassSpecial(Void*, System.Object)
       mov       rax,[rdx]
       cmp       rcx,rax
       je        short 000000000000F391
       mov       rax,[rax+10]
       cmp       rax,rcx
       jne       short 000000000000F395
       mov       rax,rdx
       ret
       test      rax,rax
       je        short 000000000000F3C4
       mov       rax,[rax+10]
       cmp       rax,rcx
       je        short 000000000000F391
       test      rax,rax
       je        short 000000000000F3C4
       mov       rax,[rax+10]
       cmp       rax,rcx
       je        short 000000000000F391
       test      rax,rax
       je        short 000000000000F3C4
       mov       rax,[rax+10]
       cmp       rax,rcx
       je        short 000000000000F391
       test      rax,rax
       jne       short 000000000000F388
       jmp       qword ptr [0B870]
; Total bytes of code 74

PerfLabTests.CastingPerf2.CastingPerf.ObjFooIsObj

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 627.3951736111112 > 392.95850260416665.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -52.26456353455032 (T) = (0 -630528.1837335342) / Math.Sqrt((667412479.900424 / (20)) + (35082144.47427317 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.9420703920836275 = (324668.0379371043 - 630528.1837335342) / 324668.0379371043 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; PerfLabTests.CastingPerf2.CastingPerf.ObjFooIsObj()
       push      rdi
       push      rsi
       xor       esi,esi
       mov       edi,[0BD78]
       test      edi,edi
       jle       short 000000000000F430
       mov       rdx,2775C007F98
       mov       rdx,[rdx]
       mov       rcx,2775C007FB8
       call      0000000000000010
       inc       esi
       cmp       esi,edi
       jl        short 000000000000F40E
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 51

Compare Jit Disasm

; PerfLabTests.CastingPerf2.CastingPerf.ObjFooIsObj()
       push      rdi
       push      rsi
       xor       esi,esi
       mov       edi,[0BEC0]
       test      edi,edi
       jle       short 000000000000F430
       mov       rdx,29B34807F98
       mov       rdx,[rdx]
       mov       rcx,29B34807FB8
       call      0000000000000010
       inc       esi
       cmp       esi,edi
       jl        short 000000000000F40E
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 51

PerfLabTests.CastingPerf2.CastingPerf.ObjInt

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 665.9593936011904 > 475.6186013392857.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -39.35047723259015 (T) = (0 -676211.5575285342) / Math.Sqrt((463746695.5678667 / (20)) + (269200547.9266146 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.4669088301710727 = (460977.22204703995 - 676211.5575285342) / 460977.22204703995 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; PerfLabTests.CastingPerf2.CastingPerf.ObjInt()
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       xor       esi,esi
       mov       rdi,7FF91792BD7C
       cmp       dword ptr [rdi],0
       jle       short 000000000000F4AB
       mov       rbx,offset MT_System.Int32
       mov       rcx,rbx
       call      000000000000C390
       mov       edx,[0BD84]
       mov       [rax+8],edx
       mov       rcx,183F2807FB8
       mov       rdx,rax
       call      0000000000000010
       inc       esi
       cmp       esi,[rdi]
       jl        short 000000000000F482
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 83

Compare Jit Disasm

; PerfLabTests.CastingPerf2.CastingPerf.ObjInt()
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       xor       esi,esi
       mov       rdi,7FFE7C32BEC4
       cmp       dword ptr [rdi],0
       jle       short 000000000000F4AB
       mov       rbx,offset MT_System.Int32
       mov       rcx,rbx
       call      0000000000002AE0
       mov       edx,[0BECC]
       mov       [rax+8],edx
       mov       rcx,26A38407FB8
       mov       rdx,rax
       call      0000000000000010
       inc       esi
       cmp       esi,[rdi]
       jl        short 000000000000F482
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 83

PerfLabTests.CastingPerf2.CastingPerf.IFooFooIsIFoo

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 626.9664930555556 > 392.9094651442308.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -52.84766574894581 (T) = (0 -629463.0912317804) / Math.Sqrt((652108365.058048 / (20)) + (28250370.90447056 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.9401161862899491 = (324446.07992034324 - 629463.0912317804) / 324446.07992034324 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; PerfLabTests.CastingPerf2.CastingPerf.IFooFooIsIFoo()
       push      rdi
       push      rsi
       xor       esi,esi
       mov       edi,[0BD78]
       test      edi,edi
       jle       short 000000000000F430
       mov       rdx,20A91007F98
       mov       rdx,[rdx]
       mov       rcx,20A91008058
       call      0000000000000010
       inc       esi
       cmp       esi,edi
       jl        short 000000000000F40E
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 51

Compare Jit Disasm

; PerfLabTests.CastingPerf2.CastingPerf.IFooFooIsIFoo()
       push      rdi
       push      rsi
       xor       esi,esi
       mov       edi,[0BEC0]
       test      edi,edi
       jle       short 000000000000F430
       mov       rdx,198C2807F98
       mov       rdx,[rdx]
       mov       rcx,198C2808058
       call      0000000000000010
       inc       esi
       cmp       esi,edi
       jl        short 000000000000F40E
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 51

PerfLabTests.CastingPerf2.CastingPerf.IFooObjIsIFoo

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 665.1163194444445 > 602.1778671874999.
IsChangePoint: Marked as a change because one of 6/27/2022 8:54:23 AM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -54.86781295064951 (T) = (0 -666037.4760049786) / Math.Sqrt((71128222.89195432 / (20)) + (8364132.5926333405 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.19027329172994378 = (559566.8495904495 - 666037.4760049786) / 559566.8495904495 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; PerfLabTests.CastingPerf2.CastingPerf.IFooObjIsIFoo()
       push      rdi
       push      rsi
       sub       rsp,28
       xor       esi,esi
       mov       edi,[0BD7C]
       test      edi,edi
       jle       short 000000000000EFC7
       mov       rdx,24D5B407FB8
       mov       rdx,[rdx]
       mov       rcx,offset MT_PerfLabTests.CastingPerf2.IFoo
       call      qword ptr [0B888]
       mov       rcx,24D5B408058
       mov       rdx,rax
       call      0000000000000010
       inc       esi
       cmp       esi,edi
       jl        short 000000000000EF92
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 78

; System.Runtime.CompilerServices.CastHelpers.ChkCastInterface(Void*, System.Object)
       test      rdx,rdx
       je        short 000000000000E5D3
       mov       rax,[rdx]
       movzx     r8d,word ptr [rax+0E]
       test      r8,r8
       je        short 000000000000E5FB
       mov       rax,[rax+38]
       cmp       r8,4
       jl        short 000000000000E5EA
       cmp       [rax],rcx
       je        short 000000000000E5D3
       cmp       [rax+8],rcx
       je        short 000000000000E5D3
       cmp       [rax+10],rcx
       je        short 000000000000E5D3
       cmp       [rax+18],rcx
       jne       short 000000000000E5D7
       mov       rax,rdx
       ret
       add       rax,20
       add       r8,0FFFFFFFFFFFFFFFC
       cmp       r8,4
       jge       short 000000000000E5BC
       test      r8,r8
       je        short 000000000000E5FB
       cmp       [rax],rcx
       je        short 000000000000E5D3
       add       rax,8
       dec       r8
       test      r8,r8
       jg        short 000000000000E5EA
       jmp       qword ptr [0B870]
; Total bytes of code 97

Compare Jit Disasm

; PerfLabTests.CastingPerf2.CastingPerf.IFooObjIsIFoo()
       push      rdi
       push      rsi
       sub       rsp,28
       xor       esi,esi
       mov       edi,[0BEC4]
       test      edi,edi
       jle       short 000000000000F447
       mov       rdx,29DC7407FB8
       mov       rdx,[rdx]
       mov       rcx,offset MT_PerfLabTests.CastingPerf2.IFoo
       call      qword ptr [0B888]
       mov       rcx,29DC7408058
       mov       rdx,rax
       call      0000000000000010
       inc       esi
       cmp       esi,edi
       jl        short 000000000000F412
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 78

; System.Runtime.CompilerServices.CastHelpers.ChkCastInterface(Void*, System.Object)
       test      rdx,rdx
       je        short 000000000000F3B3
       mov       rax,[rdx]
       movzx     r8d,word ptr [rax+0E]
       test      r8,r8
       je        short 000000000000F3DB
       mov       rax,[rax+38]
       cmp       r8,4
       jl        short 000000000000F3CA
       cmp       [rax],rcx
       je        short 000000000000F3B3
       cmp       [rax+8],rcx
       je        short 000000000000F3B3
       cmp       [rax+10],rcx
       je        short 000000000000F3B3
       cmp       [rax+18],rcx
       jne       short 000000000000F3B7
       mov       rax,rdx
       ret
       add       rax,20
       add       r8,0FFFFFFFFFFFFFFFC
       cmp       r8,4
       jge       short 000000000000F39C
       test      r8,r8
       je        short 000000000000F3DB
       cmp       [rax],rcx
       je        short 000000000000F3B3
       add       rax,8
       dec       r8
       test      r8,r8
       jg        short 000000000000F3CA
       jmp       qword ptr [0B870]
; Total bytes of code 97

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

[performanceautofiler]

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Net.Primitives.Tests.IPAddressPerformanceTests

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Ctor_Span - Duration of single invocation	5.81 ns	7.24 ns	1.25	0.26	False	69.67113729863992	80.59044939995894	1.156726479926892	Trace	Trace
ToString - Duration of single invocation	0.22 ns	1.65 ns	7.64	0.13	False	19.95050054734972	21.73014843699477	1.089203169886455	Trace	Trace
ToString - Duration of single invocation	0.29 ns	1.72 ns	5.96	0.19	False	19.77541124595707	21.728024890863917	1.0987394709834943

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Net.Primitives.Tests.IPAddressPerformanceTests*'

Payloads

Baseline
Compare

Histogram

System.Net.Primitives.Tests.IPAddressPerformanceTests.Ctor_Span(address: [143, 24, 20, 36])

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 7.244795701685631 > 6.082976993020706.
IsChangePoint: Marked as a change because one of 7/2/2022 7:35:06 PM, 7/6/2022 3:55:24 AM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -24.696826067918362 (T) = (0 -7.309452172162186) / Math.Sqrt((0.0527983507256097 / (20)) + (0.04551799312727905 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.26210488505876833 = (5.7914776011835425 - 7.309452172162186) / 5.7914776011835425 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Net.Primitives.Tests.IPAddressPerformanceTests.Ctor_Span(Byte[])
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,30
       xor       eax,eax
       mov       [rsp+20],rax
       test      rdx,rdx
       je        short 000000000000FEFE
       lea       rsi,[rdx+10]
       mov       edi,[rdx+8]
       mov       rcx,offset MT_System.Net.IPAddress
       call      000000000000C390
       mov       rbx,rax
       mov       [rsp+20],rsi
       mov       [rsp+28],edi
       mov       rcx,rbx
       lea       rdx,[rsp+20]
       call      qword ptr [1120]
       mov       rax,rbx
       add       rsp,30
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       xor       esi,esi
       xor       edi,edi
       jmp       short 000000000000FECA
; Total bytes of code 84

; System.Net.IPAddress..ctor(System.ReadOnlySpan`1<Byte>)
       push      rdi
       push      rsi
       sub       rsp,28
       mov       rsi,rcx
       mov       rdi,[rdx]
       mov       ecx,[rdx+8]
       cmp       ecx,4
       jne       short 000000000000FF97
       mov       ecx,4
       cmp       ecx,4
       jl        near ptr 0000000000000063
       mov       ecx,[rdi]
       xor       edx,edx
       mov       [rsi+10],rdx
       mov       [rsi+1C],edx
       mov       [rsi+18],ecx
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       cmp       ecx,10
       jne       short 6
       mov       rcx,offset MT_System.UInt16[]
       mov       edx,8
       call      000000000000C4B0
       lea       rcx,[rsi+8]
       mov       rdx,rax
       call      0000000000000010
       xor       ecx,ecx
       mov       rax,[rsi+8]
       lea       edx,[rcx+rcx]
       mov       r8d,edx
       inc       edx
       mov       r9,rax
       mov       r8d,r8d
       movzx     r8d,byte ptr [rdi+r8]
       shl       r8d,8
       mov       edx,edx
       movzx     edx,byte ptr [rdi+rdx]
       add       edx,r8d
       movzx     edx,dx
       cmp       ecx,[r9+8]
       jae       near ptr 000000000000006F
       mov       r8d,ecx
       mov       [r9+r8*2+10],dx
       inc       ecx
       cmp       ecx,8
       jl        short 000000000000FFC2
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       mov       rcx,offset MT_System.ArgumentException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,189
       mov       rdx,7FFEFAEA2490
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [1D68]
       mov       rdi,rax
       mov       ecx,0B02
       mov       rdx,7FFEFAEA2490
       call      00000000000014A0
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [0BBD0]
       mov       rcx,rsi
       call      0000000000004690
       mov       ecx,29
       call      qword ptr [0B7E0]
       int       3
       call      0000000000006930
       int       3
; Total bytes of code 277

Compare Jit Disasm

; System.Net.Primitives.Tests.IPAddressPerformanceTests.Ctor_Span(Byte[])
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,30
       xor       eax,eax
       mov       [rsp+20],rax
       test      rdx,rdx
       je        short 000000000000FEFE
       lea       rsi,[rdx+10]
       mov       edi,[rdx+8]
       mov       rcx,offset MT_System.Net.IPAddress
       call      0000000000002AE0
       mov       rbx,rax
       mov       [rsp+20],rsi
       mov       [rsp+28],edi
       mov       rcx,rbx
       lea       rdx,[rsp+20]
       call      qword ptr [1120]
       mov       rax,rbx
       add       rsp,30
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       xor       esi,esi
       xor       edi,edi
       jmp       short 000000000000FECA
; Total bytes of code 84

; System.Net.IPAddress..ctor(System.ReadOnlySpan`1<Byte>)
       push      rdi
       push      rsi
       sub       rsp,28
       mov       rsi,rcx
       mov       rdi,[rdx]
       mov       ecx,[rdx+8]
       cmp       ecx,4
       jne       short 000000000000FF97
       mov       ecx,4
       cmp       ecx,4
       jl        near ptr 0000000000000063
       mov       ecx,[rdi]
       xor       edx,edx
       mov       [rsi+10],rdx
       mov       [rsi+1C],edx
       mov       [rsi+18],ecx
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       cmp       ecx,10
       jne       short 6
       mov       rcx,offset MT_System.UInt16[]
       mov       edx,8
       call      0000000000002C00
       lea       rcx,[rsi+8]
       mov       rdx,rax
       call      0000000000000010
       xor       ecx,ecx
       mov       rax,[rsi+8]
       lea       edx,[rcx+rcx]
       mov       r8d,edx
       inc       edx
       mov       r9,rax
       mov       r8d,r8d
       movzx     r8d,byte ptr [rdi+r8]
       shl       r8d,8
       mov       edx,edx
       movzx     edx,byte ptr [rdi+rdx]
       add       edx,r8d
       movzx     edx,dx
       cmp       ecx,[r9+8]
       jae       near ptr 000000000000006F
       mov       r8d,ecx
       mov       [r9+r8*2+10],dx
       inc       ecx
       cmp       ecx,8
       jl        short 000000000000FFC2
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       mov       rcx,offset MT_System.ArgumentException
       call      0000000000002AE0
       mov       rsi,rax
       mov       ecx,189
       mov       rdx,7FFCEEF625D8
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [1D68]
       mov       rdi,rax
       mov       ecx,0B02
       mov       rdx,7FFCEEF625D8
       call      000000000000A140
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [0BBD0]
       mov       rcx,rsi
       call      0000000000002B00
       mov       ecx,29
       call      qword ptr [0B7E0]
       int       3
       call      000000000000AB50
       int       3
; Total bytes of code 277

System.Net.Primitives.Tests.IPAddressPerformanceTests.ToString(address: 143.24.20.36)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 1.65492173209289 > 0.22458504868467719.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -159.39280747354283 (T) = (0 -1.6528015057149443) / Math.Sqrt((0.001510178896393494 / (20)) + (8.953767478782256E-05 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -5.681664516462246 = (0.2473637372308624 - 1.6528015057149443) / 0.2473637372308624 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Net.Primitives.Tests.IPAddressPerformanceTests.ToString(System.Net.IPAddress)
       mov       rcx,rdx
       mov       rax,[rdx]
       mov       rax,[rax+40]
       jmp       qword ptr [rax+8]
; Total bytes of code 14

Compare Jit Disasm

; System.Net.Primitives.Tests.IPAddressPerformanceTests.ToString(System.Net.IPAddress)
       mov       rcx,rdx
       mov       rax,[rdx]
       mov       rax,[rax+40]
       jmp       qword ptr [rax+8]
; Total bytes of code 14

System.Net.Primitives.Tests.IPAddressPerformanceTests.ToString(address: 1020:3040:5060:7080:9010:1112:1314:1516)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 1.7176243523620773 > 0.30210424328990987.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -234.5415064713326 (T) = (0 -1.7080929694664906) / Math.Sqrt((0.0007154329175903445 / (20)) + (0.00014291973699360154 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -6.209448877773808 = (0.23692420855253077 - 1.7080929694664906) / 0.23692420855253077 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Net.Primitives.Tests.IPAddressPerformanceTests.ToString(System.Net.IPAddress)
       mov       rcx,rdx
       mov       rax,[rdx]
       mov       rax,[rax+40]
       jmp       qword ptr [rax+8]
; Total bytes of code 14

Compare Jit Disasm

; System.Net.Primitives.Tests.IPAddressPerformanceTests.ToString(System.Net.IPAddress)
       mov       rcx,rdx
       mov       rax,[rdx]
       mov       rax,[rax+40]
       jmp       qword ptr [rax+8]
; Total bytes of code 14

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

### Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Collections.CtorDefaultSize<String>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
SortedSet - Duration of single invocation	15.68 ns	17.08 ns	1.09	0.36	False
HashSet - Duration of single invocation	14.91 ns	16.69 ns	1.12	0.34	False
ConcurrentStack - Duration of single invocation	3.01 ns	4.68 ns	1.56	0.33	False
LinkedList - Duration of single invocation	3.53 ns	5.67 ns	1.61	0.28	False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.CtorDefaultSize<String>*'

Payloads

Baseline
Compare

Histogram

System.Collections.CtorDefaultSize<String>.SortedSet

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 17.079643855496528 > 16.530979964334172.
IsChangePoint: Marked as a change because one of 7/13/2022 12:52:03 AM, 7/18/2022 3:18:54 PM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -9.113780838750493 (T) = (0 -17.2612048476351) / Math.Sqrt((0.6585614926128625 / (20)) + (0.1315784751317134 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.11170610761489522 = (15.526769826485951 - 17.2612048476351) / 15.526769826485951 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.CtorDefaultSize<String>.HashSet

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 16.68612767091959 > 15.682100757643266.
IsChangePoint: Marked as a change because one of 7/3/2022 4:26:07 AM, 7/4/2022 6:29:12 PM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -9.885335072257517 (T) = (0 -17.0484948102498) / Math.Sqrt((0.3346450132669051 / (20)) + (0.8330600059203501 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.12659900290824408 = (15.13270894634221 - 17.0484948102498) / 15.13270894634221 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.CtorDefaultSize<String>.ConcurrentStack

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 4.6833447665490056 > 3.166568159133229.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -21.53220961111819 (T) = (0 -4.9095268554528815) / Math.Sqrt((0.12417050335795192 / (20)) + (0.030421987406990085 / (39))) is less than -2.0024654592901125 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (39) - 2, .025) and -0.5788881811726942 = (3.1094835682450976 - 4.9095268554528815) / 3.1094835682450976 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.CtorDefaultSize<String>.LinkedList

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 5.674197801153622 > 3.8161022989598044.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -30.356075724164345 (T) = (0 -5.7995153309722145) / Math.Sqrt((0.0838204176827697 / (20)) + (0.023020393458266352 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.5658580818610588 = (3.7037298578676783 - 5.7995153309722145) / 3.7037298578676783 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Tests.Perf_SByte

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ToString - Duration of single invocation	9.54 ns	11.43 ns	1.20	0.05	False				Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_SByte*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_SByte.ToString(value: 127)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 11.429898753915896 > 9.668705185101045.
IsChangePoint: Marked as a change because one of 6/27/2022 8:54:23 AM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -45.84063122149927 (T) = (0 -11.612960898974617) / Math.Sqrt((0.04937637003687664 / (20)) + (0.025818528912190476 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.28252127051320614 = (9.05479009664116 - 11.612960898974617) / 9.05479009664116 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Tests.Perf_SByte.ToString(SByte)
       sub       rsp,28
       movsx     rcx,dl
       call      qword ptr [9300]
       nop
       add       rsp,28
       ret
; Total bytes of code 20

; System.Number.Int32ToDecStr(Int32)
       push      rdi
       push      rsi
       sub       rsp,28
       xor       eax,eax
       mov       [rsp+20],rax
       mov       esi,ecx
       test      esi,esi
       jl        near ptr 000000000000F5DD
       mov       ecx,esi
       mov       eax,1
       cmp       ecx,186A0
       jae       near ptr 000000000000F5C3
       cmp       ecx,0A
       jae       short 000000000000F53A
       mov       edi,eax
       cmp       edi,1
       jne       short 000000000000F543
       mov       rcx,224464002C8
       mov       rcx,[rcx]
       cmp       esi,[rcx+8]
       jae       near ptr 000000000000F603
       mov       eax,esi
       mov       rax,[rcx+rax*8+10]
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       cmp       ecx,64
       jae       short 000000000000F59B
       inc       eax
       jmp       short 000000000000F50F
       mov       ecx,edi
       call      0
       test      rax,rax
       je        near ptr 000000000000F5FC
       lea       rdx,[rax+0C]
       mov       [rsp+20],rdx
       mov       rdx,[rsp+20]
       movsxd    rcx,edi
       lea       rdx,[rdx+rcx*2]
       mov       ecx,0CCCCCCCD
       mov       r8d,esi
       imul      rcx,r8
       shr       rcx,23
       lea       r8d,[rcx+rcx*4]
       add       r8d,r8d
       sub       esi,r8d
       add       rdx,0FFFFFFFFFFFFFFFE
       add       esi,30
       mov       [rdx],si
       test      ecx,ecx
       mov       esi,ecx
       jne       short 000000000000F568
       xor       edx,edx
       mov       [rsp+20],rdx
       jmp       short 000000000000F533
       cmp       ecx,3E8
       jae       short 000000000000F5AB
       add       eax,2
       jmp       near ptr 000000000000F50F
       cmp       ecx,2710
       jae       short 000000000000F5BB
       add       eax,3
       jmp       near ptr 000000000000F50F
       add       eax,4
       jmp       near ptr 000000000000F50F
       mov       ecx,esi
       shr       ecx,5
       imul      rcx,0A7C5AC5
       shr       rcx,27
       mov       eax,6
       jmp       near ptr 000000000000F50A
       call      qword ptr [5858]
       mov       r8,[rax+28]
       mov       ecx,esi
       mov       edx,0FFFFFFFF
       call      qword ptr [9318]
       nop
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       xor       edx,edx
       jmp       near ptr 000000000000F561
       call      0000000000006930
       int       3
; Total bytes of code 297

Compare Jit Disasm

; System.Tests.Perf_SByte.ToString(SByte)
       sub       rsp,28
       movsx     rcx,dl
       call      qword ptr [9300]
       nop
       add       rsp,28
       ret
; Total bytes of code 20

; System.Number.Int32ToDecStr(Int32)
       push      rdi
       push      rsi
       sub       rsp,28
       xor       eax,eax
       mov       [rsp+20],rax
       mov       esi,ecx
       test      esi,esi
       jl        near ptr 000000000000F5DD
       mov       ecx,esi
       mov       eax,1
       cmp       ecx,186A0
       jae       near ptr 000000000000F5C3
       cmp       ecx,0A
       jae       short 000000000000F53A
       mov       edi,eax
       cmp       edi,1
       jne       short 000000000000F543
       mov       rcx,1CC0A4002C8
       mov       rcx,[rcx]
       cmp       esi,[rcx+8]
       jae       near ptr 000000000000F603
       mov       eax,esi
       mov       rax,[rcx+rax*8+10]
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       cmp       ecx,64
       jae       short 000000000000F59B
       inc       eax
       jmp       short 000000000000F50F
       mov       ecx,edi
       call      0
       test      rax,rax
       je        near ptr 000000000000F5FC
       lea       rdx,[rax+0C]
       mov       [rsp+20],rdx
       mov       rdx,[rsp+20]
       movsxd    rcx,edi
       lea       rdx,[rdx+rcx*2]
       mov       ecx,0CCCCCCCD
       mov       r8d,esi
       imul      rcx,r8
       shr       rcx,23
       lea       r8d,[rcx+rcx*4]
       add       r8d,r8d
       sub       esi,r8d
       add       rdx,0FFFFFFFFFFFFFFFE
       add       esi,30
       mov       [rdx],si
       test      ecx,ecx
       mov       esi,ecx
       jne       short 000000000000F568
       xor       edx,edx
       mov       [rsp+20],rdx
       jmp       short 000000000000F533
       cmp       ecx,3E8
       jae       short 000000000000F5AB
       add       eax,2
       jmp       near ptr 000000000000F50F
       cmp       ecx,2710
       jae       short 000000000000F5BB
       add       eax,3
       jmp       near ptr 000000000000F50F
       add       eax,4
       jmp       near ptr 000000000000F50F
       mov       ecx,esi
       shr       ecx,5
       imul      rcx,0A7C5AC5
       shr       rcx,27
       mov       eax,6
       jmp       near ptr 000000000000F50A
       call      qword ptr [5858]
       mov       r8,[rax+28]
       mov       ecx,esi
       mov       edx,0FFFFFFFF
       call      qword ptr [9318]
       nop
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       xor       edx,edx
       jmp       near ptr 000000000000F561
       call      000000000000AB50
       int       3
; Total bytes of code 297

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in ByteMark

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
BenchBitOps - Duration of single invocation	767.82 ms	841.25 ms	1.10	0.23	False	6537533333.333333	7486266666.666667	1.1451209936469413	Trace	Trace
BenchStringSort - Duration of single invocation	1.48 secs	1.64 secs	1.11	0.00	False	7172400000	7928600000	1.105431933522949	Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'ByteMark*'

Payloads

Baseline
Compare

Histogram

ByteMark.BenchBitOps

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 841.2536 > 695.6341710937501.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -16.049406013993924 (T) = (0 -860181160.7010663) / Math.Sqrt((1697989243656410.2 / (20)) + (1172993787368041 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.24907978543055687 = (688651894.5661765 - 860181160.7010663) / 688651894.5661765 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; BenchmarkDotNet.Autogenerated.Runnable_0.__ForDisassemblyDiagnoser__()
       push      rbp
       sub       rsp,20
       lea       rbp,[rsp+20]
       mov       [rbp+10],rcx
       mov       rcx,[rbp+10]
       cmp       dword ptr [rcx+38],0B
       jne       short 0000000000004F22
       mov       rcx,[rbp+10]
       call      qword ptr [0B240]
       nop
       add       rsp,20
       pop       rbp
       ret
; Total bytes of code 41

Compare Jit Disasm

ByteMark.BenchStringSort

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 1.6362770214285716 > 1.5175663730769233.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -37.04855220647291 (T) = (0 -1642408488.32326) / Math.Sqrt((445799367281957.7 / (20)) + (286138616351365.2 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.13947233595277336 = (1441376360.357143 - 1642408488.32326) / 1441376360.357143 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; BenchmarkDotNet.Autogenerated.Runnable_0.__ForDisassemblyDiagnoser__()
       push      rbp
       sub       rsp,20
       lea       rbp,[rsp+20]
       mov       [rbp+10],rcx
       mov       rcx,[rbp+10]
       cmp       dword ptr [rcx+38],0B
       jne       short 00000000000058E2
       mov       rcx,[rbp+10]
       call      qword ptr [0B228]
       nop
       add       rsp,20
       pop       rbp
       ret
; Total bytes of code 41

Compare Jit Disasm

; BenchmarkDotNet.Autogenerated.Runnable_0.__ForDisassemblyDiagnoser__()
       push      rbp
       sub       rsp,20
       lea       rbp,[rsp+20]
       mov       [rbp+10],rcx
       mov       rcx,[rbp+10]
       cmp       dword ptr [rcx+38],0B
       jne       short 0000000000006422
       mov       rcx,[rbp+10]
       call      qword ptr [0B228]
       nop
       add       rsp,20
       pop       rbp
       ret
; Total bytes of code 41

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Collections.CtorFromCollection<String>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ConcurrentQueue - Duration of single invocation	8.02 μs	8.43 μs	1.05	0.00	False
Dictionary - Duration of single invocation	5.01 μs	5.37 μs	1.07	0.05	False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.CtorFromCollection<String>*'

Payloads

Baseline
Compare

Histogram

System.Collections.CtorFromCollection<String>.ConcurrentQueue(Size: 512)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 8.434007593863232 > 8.406622894329136.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -54.78877485119516 (T) = (0 -8436.93134301469) / Math.Sqrt((931.3993397691705 / (20)) + (570.4323768522723 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.05335090964032175 = (8009.611294583277 - 8436.93134301469) / 8009.611294583277 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.CtorFromCollection<String>.Dictionary(Size: 512)

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 5.369570708738377 > 4.885196473530303.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -24.048450177220566 (T) = (0 -5342.051736120492) / Math.Sqrt((11204.801245483995 / (20)) + (9894.798073175429 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.146699825616227 = (4658.631332092265 - 5342.051736120492) / 4658.631332092265 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Reflection.Activator<EmptyStruct>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
CreateInstanceType - Duration of single invocation	9.22 ns	10.92 ns	1.18	0.10	False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Reflection.Activator<EmptyStruct>*'

Payloads

Baseline
Compare

Histogram

System.Reflection.Activator<EmptyStruct>.CreateInstanceType

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 10.923804996183858 > 9.432173180945805.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -11.957591093422339 (T) = (0 -11.190535716927945) / Math.Sqrt((0.2823936340048121 / (7)) + (0.05581750864885459 / (40))) is less than -2.0141033888794695 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (7) + (40) - 2, .025) and -0.27926454661727557 = (8.74763218172408 - 11.190535716927945) / 8.74763218172408 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

[performanceautofiler]

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Numerics.Tests.Perf_BigInteger

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ToByteArray - Duration of single invocation	13.05 ns	15.83 ns	1.21	0.04	False	160.59670367020573	171.56791988632173	1.0683153263135836	Trace	Trace
ToByteArray - Duration of single invocation	13.97 ns	16.05 ns	1.15	0.15	False	199.8950235261908	210.71773554549483	1.0541419782663373	Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Numerics.Tests.Perf_BigInteger*'

Payloads

Baseline
Compare

Histogram

System.Numerics.Tests.Perf_BigInteger.ToByteArray(numberString: 123)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 15.827833336302293 > 14.143110439803486.
IsChangePoint: Marked as a change because one of 7/2/2022 7:35:06 PM, 7/6/2022 3:55:24 AM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -18.784321387645992 (T) = (0 -15.913060910828301) / Math.Sqrt((0.18133241177545711 / (20)) + (0.0849209952646038 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.14268430742019886 = (13.926034345176841 - 15.913060910828301) / 13.926034345176841 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Numerics.Tests.Perf_BigInteger.ToByteArray(BigIntegerData)
       sub       rsp,58
       vxorps    xmm4,xmm4,xmm4
       vmovdqa   xmmword ptr [rsp+30],xmm4
       vmovdqa   xmmword ptr [rsp+40],xmm4
       xor       eax,eax
       mov       [rsp+50],rax
       add       rdx,18
       mov       r8,[rdx]
       mov       [rsp+48],r8
       mov       r8d,[rdx+8]
       mov       [rsp+50],r8d
       xor       r8d,r8d
       mov       [rsp+30],r8
       xor       r8d,r8d
       mov       [rsp+38],r8d
       mov       [rsp+20],r8d
       lea       r8,[rsp+40]
       mov       [rsp+28],r8
       lea       r8,[rsp+30]
       lea       rcx,[rsp+48]
       xor       edx,edx
       xor       r9d,r9d
       call      qword ptr [1648]
       nop
       add       rsp,58
       ret
; Total bytes of code 106

; System.Numerics.BigInteger.TryGetBytes(GetBytesMode, System.Span`1<Byte>, Boolean, Boolean, Int32 ByRef)
       push      r15
       push      r14
       push      r13
       push      r12
       push      rdi
       push      rsi
       push      rbp
       push      rbx
       sub       rsp,38
       mov       rsi,[rsp+0A8]
       mov       rdi,[r8]
       mov       ebx,[r8+8]
       mov       ebp,[rcx+8]
       test      ebp,ebp
       jne       short 000000000000284E
       test      edx,edx
       je        short 00000000000027F3
       cmp       edx,1
       je        short 000000000000280C
       jmp       short 0000000000002817
       xchg      ax,ax
       mov       rcx,offset MT_System.Byte[]
       mov       edx,1
       call      000000000000C4B0
       jmp       near ptr 0000000000002B43
       mov       dword ptr [rsi],1
       jmp       near ptr 0000000000002A15
       mov       dword ptr [rsi],1
       test      ebx,ebx
       je        near ptr 0000000000002A15
       mov       byte ptr [rdi],0
       mov       rcx,7FFF6C232F38
       mov       edx,11
       call      000000000000C560
       mov       rdx,153EBC090A8
       mov       rax,[rdx]
       jmp       near ptr 0000000000002B43
       movzx     eax,r9b
       test      eax,eax
       je        short 000000000000285E
       test      ebp,ebp
       jl        near ptr 0000000000002B59
       xor       r14d,r14d
       mov       r15,[rcx]
       test      r15,r15
       jne       short 0000000000002882
       test      ebp,ebp
       jl        short 0000000000002871
       xor       ecx,ecx
       jmp       short 0000000000002876
       mov       ecx,0FF
       movzx     r12d,cl
       mov       r13d,ebp
       jmp       short 00000000000028F8
       nop       dword ptr [rax]
       cmp       ebp,0FFFFFFFF
       jne       short 00000000000028DC
       mov       r12d,0FF
       mov       ecx,[r15+8]
       test      ecx,ecx
       je        near ptr 0000000000002B9D
       cmp       dword ptr [r15+10],0
       jne       short 00000000000028B7
       inc       r14d
       cmp       r14d,ecx
       jae       near ptr 0000000000002B9D
       mov       r8d,r14d
       cmp       dword ptr [r15+r8*4+10],0
       je        short 00000000000028A0
       lea       r8d,[rcx+0FFFF]
       cmp       r8d,ecx
       jae       near ptr 0000000000002B9D
       mov       ecx,r8d
       mov       ecx,[r15+rcx*4+10]
       mov       r13d,ecx
       not       r13d
       cmp       r8d,r14d
       jne       short 00000000000028F8
       inc       r13d
       jmp       short 00000000000028F8
       xor       r12d,r12d
       mov       ecx,[r15+8]
       lea       r8d,[rcx+0FFFF]
       cmp       r8d,ecx
       jae       near ptr 0000000000002B9D
       mov       ecx,r8d
       mov       r13d,[r15+rcx*4+10]
       mov       ecx,r13d
       shr       ecx,18
       movzx     ecx,cl
       cmp       ecx,r12d
       je        short 000000000000290E
       mov       r9d,3
       jmp       short 0000000000002941
       mov       ecx,r13d
       shr       ecx,10
       movzx     ecx,cl
       cmp       ecx,r12d
       je        short 0000000000002924
       mov       r9d,2
       jmp       short 0000000000002941
       mov       ecx,r13d
       shr       ecx,8
       movzx     ecx,cl
       cmp       ecx,r12d
       je        short 000000000000293A
       mov       r9d,1
       jmp       short 0000000000002941
       movzx     ecx,r13b
       xor       r9d,r9d
       and       ecx,80
       mov       r8d,r12d
       and       r8d,80
       cmp       ecx,r8d
       je        short 000000000000295F
       xor       ecx,ecx
       test      eax,eax
       sete      cl
       jmp       short 0000000000002961
       xor       ecx,ecx
       movzx     eax,cl
       mov       [rsp+30],eax
       mov       [rsp+34],r9d
       lea       ecx,[r9+1]
       test      eax,eax
       jne       short 000000000000297A
       xor       r8d,r8d
       jmp       short 0000000000002980
       mov       r8d,1
       add       ecx,r8d
       test      r15,r15
       je        short 00000000000029A9
       mov       r8d,[r15+8]
       sub       r8d,1
       jo        near ptr 0000000000002B54
       imul      r8d,4
       jo        near ptr 0000000000002B54
       add       ecx,r8d
       jo        near ptr 0000000000002B54
       test      edx,edx
       je        short 00000000000029B4
       cmp       edx,1
       je        short 00000000000029D3
       jmp       short 00000000000029D7
       mov       [rsp+2C],ecx
       movsxd    rdx,ecx
       mov       rcx,offset MT_System.Byte[]
       call      000000000000C4B0
       lea       rdi,[rax+10]
       mov       ebx,[rax+8]
       jmp       short 0000000000002A02
       mov       [rsi],ecx
       jmp       short 0000000000002A15
       mov       [rsi],ecx
       mov       [rsp+2C],ecx
       cmp       ebx,ecx
       jl        short 0000000000002A15
       mov       rcx,7FFF6C232F38
       mov       edx,11
       call      000000000000C560
       mov       rax,153EBC090A8
       mov       rax,[rax]
       mov       esi,[rsp+0A0]
       movzx     ecx,sil
       test      ecx,ecx
       jne       short 0000000000002A28
       xor       edx,edx
       jmp       short 0000000000002A2F
       xor       eax,eax
       add       rsp,38
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       pop       r12
       pop       r13
       pop       r14
       pop       r15
       ret
       mov       esi,[rsp+2C]
       lea       edx,[rsi+0FFFF]
       test      ecx,ecx
       jne       short 0000000000002A3A
       mov       ecx,1
       jmp       short 0000000000002A3F
       mov       ecx,0FFFFFFFF
       test      r15,r15
       je        near ptr 0000000000002ACB
       xor       r8d,r8d
       mov       r9d,[r15+8]
       dec       r9d
       test      r9d,r9d
       jle       short 0000000000002ACB
       mov       r10d,r8d
       mov       r10d,[r15+r10*4+10]
       cmp       ebp,0FFFFFFFF
       jne       short 0000000000002A6F
       not       r10d
       cmp       r8d,r14d
       jg        short 0000000000002A6F
       inc       r10d
       cmp       edx,ebx
       jae       near ptr 0000000000002B9D
       mov       r11d,edx
       mov       [rdi+r11],r10b
       add       edx,ecx
       cmp       edx,ebx
       jae       near ptr 0000000000002B9D
       mov       r11d,edx
       mov       esi,r10d
       shr       esi,8
       mov       [rdi+r11],sil
       add       edx,ecx
       cmp       edx,ebx
       jae       near ptr 0000000000002B9D
       mov       r11d,edx
       mov       esi,r10d
       shr       esi,10
       mov       [rdi+r11],sil
       add       edx,ecx
       cmp       edx,ebx
       jae       near ptr 0000000000002B9D
       mov       r11d,edx
       shr       r10d,18
       mov       [rdi+r11],r10b
       add       edx,ecx
       inc       r8d
       cmp       r9d,r8d
       jg        short 0000000000002A57
       cmp       edx,ebx
       jae       near ptr 0000000000002B9D
       mov       r8d,edx
       mov       [rdi+r8],r13b
       mov       esi,[rsp+34]
       test      esi,esi
       je        short 0000000000002B30
       add       edx,ecx
       cmp       edx,ebx
       jae       near ptr 0000000000002B9D
       mov       r8d,edx
       mov       r9d,r13d
       shr       r9d,8
       mov       [rdi+r8],r9b
       cmp       esi,1
       je        short 0000000000002B30
       add       edx,ecx
       cmp       edx,ebx
       jae       near ptr 0000000000002B9D
       mov       r8d,edx
       mov       r9d,r13d
       shr       r9d,10
       mov       [rdi+r8],r9b
       cmp       esi,2
       je        short 0000000000002B30
       add       edx,ecx
       cmp       edx,ebx
       jae       short 0000000000002B9D
       mov       r8d,edx
       mov       r9d,r13d
       shr       r9d,18
       mov       [rdi+r8],r9b
       cmp       dword ptr [rsp+30],0
       je        short 0000000000002B43
       add       edx,ecx
       cmp       edx,ebx
       jae       short 0000000000002B9D
       mov       ecx,edx
       mov       [rdi+rcx],r12b
       add       rsp,38
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       pop       r12
       pop       r13
       pop       r14
       pop       r15
       ret
       call      00000000000065F0
       mov       rcx,offset MT_System.OverflowException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,34B
       mov       rdx,7FFF6C232AA0
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [1018]
       mov       rdx,rax
       mov       rcx,rsi
       call      qword ptr [3480]
       mov       rcx,rsi
       call      0000000000004690
       int       3
       call      0000000000006930
       int       3
; Total bytes of code 995

Compare Jit Disasm

; System.Numerics.Tests.Perf_BigInteger.ToByteArray(BigIntegerData)
       sub       rsp,58
       vxorps    xmm4,xmm4,xmm4
       vmovdqa   xmmword ptr [rsp+30],xmm4
       vmovdqa   xmmword ptr [rsp+40],xmm4
       xor       eax,eax
       mov       [rsp+50],rax
       add       rdx,18
       mov       r8,[rdx]
       mov       [rsp+48],r8
       mov       r8d,[rdx+8]
       mov       [rsp+50],r8d
       xor       r8d,r8d
       mov       [rsp+30],r8
       xor       r8d,r8d
       mov       [rsp+38],r8d
       mov       [rsp+20],r8d
       lea       r8,[rsp+40]
       mov       [rsp+28],r8
       lea       r8,[rsp+30]
       lea       rcx,[rsp+48]
       xor       edx,edx
       xor       r9d,r9d
       call      qword ptr [1648]
       nop
       add       rsp,58
       ret
; Total bytes of code 106

; System.Numerics.BigInteger.TryGetBytes(GetBytesMode, System.Span`1<Byte>, Boolean, Boolean, Int32 ByRef)
       push      r15
       push      r14
       push      r13
       push      r12
       push      rdi
       push      rsi
       push      rbp
       push      rbx
       sub       rsp,38
       mov       rsi,[rsp+0A8]
       mov       rdi,[r8]
       mov       ebx,[r8+8]
       mov       ebp,[rcx+8]
       test      ebp,ebp
       jne       short 000000000000284E
       test      edx,edx
       je        short 00000000000027F3
       cmp       edx,1
       je        short 000000000000280C
       jmp       short 0000000000002817
       xchg      ax,ax
       mov       rcx,offset MT_System.Byte[]
       mov       edx,1
       call      0000000000002C00
       jmp       near ptr 0000000000002B43
       mov       dword ptr [rsi],1
       jmp       near ptr 0000000000002A15
       mov       dword ptr [rsi],1
       test      ebx,ebx
       je        near ptr 0000000000002A15
       mov       byte ptr [rdi],0
       mov       rcx,7FF9F84F3090
       mov       edx,12
       call      0000000000002CB0
       mov       rdx,29B0A8090A8
       mov       rax,[rdx]
       jmp       near ptr 0000000000002B43
       movzx     eax,r9b
       test      eax,eax
       je        short 000000000000285E
       test      ebp,ebp
       jl        near ptr 0000000000002B59
       xor       r14d,r14d
       mov       r15,[rcx]
       test      r15,r15
       jne       short 0000000000002882
       test      ebp,ebp
       jl        short 0000000000002871
       xor       ecx,ecx
       jmp       short 0000000000002876
       mov       ecx,0FF
       movzx     r12d,cl
       mov       r13d,ebp
       jmp       short 00000000000028F8
       nop       dword ptr [rax]
       cmp       ebp,0FFFFFFFF
       jne       short 00000000000028DC
       mov       r12d,0FF
       mov       ecx,[r15+8]
       test      ecx,ecx
       je        near ptr 0000000000002B9D
       cmp       dword ptr [r15+10],0
       jne       short 00000000000028B7
       inc       r14d
       cmp       r14d,ecx
       jae       near ptr 0000000000002B9D
       mov       r8d,r14d
       cmp       dword ptr [r15+r8*4+10],0
       je        short 00000000000028A0
       lea       r8d,[rcx+0FFFF]
       cmp       r8d,ecx
       jae       near ptr 0000000000002B9D
       mov       ecx,r8d
       mov       ecx,[r15+rcx*4+10]
       mov       r13d,ecx
       not       r13d
       cmp       r8d,r14d
       jne       short 00000000000028F8
       inc       r13d
       jmp       short 00000000000028F8
       xor       r12d,r12d
       mov       ecx,[r15+8]
       lea       r8d,[rcx+0FFFF]
       cmp       r8d,ecx
       jae       near ptr 0000000000002B9D
       mov       ecx,r8d
       mov       r13d,[r15+rcx*4+10]
       mov       ecx,r13d
       shr       ecx,18
       movzx     ecx,cl
       cmp       ecx,r12d
       je        short 000000000000290E
       mov       r9d,3
       jmp       short 0000000000002941
       mov       ecx,r13d
       shr       ecx,10
       movzx     ecx,cl
       cmp       ecx,r12d
       je        short 0000000000002924
       mov       r9d,2
       jmp       short 0000000000002941
       mov       ecx,r13d
       shr       ecx,8
       movzx     ecx,cl
       cmp       ecx,r12d
       je        short 000000000000293A
       mov       r9d,1
       jmp       short 0000000000002941
       movzx     ecx,r13b
       xor       r9d,r9d
       and       ecx,80
       mov       r8d,r12d
       and       r8d,80
       cmp       ecx,r8d
       je        short 000000000000295F
       xor       ecx,ecx
       test      eax,eax
       sete      cl
       jmp       short 0000000000002961
       xor       ecx,ecx
       movzx     eax,cl
       mov       [rsp+30],eax
       mov       [rsp+34],r9d
       lea       ecx,[r9+1]
       test      eax,eax
       jne       short 000000000000297A
       xor       r8d,r8d
       jmp       short 0000000000002980
       mov       r8d,1
       add       ecx,r8d
       test      r15,r15
       je        short 00000000000029A9
       mov       r8d,[r15+8]
       sub       r8d,1
       jo        near ptr 0000000000002B54
       imul      r8d,4
       jo        near ptr 0000000000002B54
       add       ecx,r8d
       jo        near ptr 0000000000002B54
       test      edx,edx
       je        short 00000000000029B4
       cmp       edx,1
       je        short 00000000000029D3
       jmp       short 00000000000029D7
       mov       [rsp+2C],ecx
       movsxd    rdx,ecx
       mov       rcx,offset MT_System.Byte[]
       call      0000000000002C00
       lea       rdi,[rax+10]
       mov       ebx,[rax+8]
       jmp       short 0000000000002A02
       mov       [rsi],ecx
       jmp       short 0000000000002A15
       mov       [rsi],ecx
       mov       [rsp+2C],ecx
       cmp       ebx,ecx
       jl        short 0000000000002A15
       mov       rcx,7FF9F84F3090
       mov       edx,12
       call      0000000000002CB0
       mov       rax,29B0A8090A8
       mov       rax,[rax]
       mov       esi,[rsp+0A0]
       movzx     ecx,sil
       test      ecx,ecx
       jne       short 0000000000002A28
       xor       edx,edx
       jmp       short 0000000000002A2F
       xor       eax,eax
       add       rsp,38
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       pop       r12
       pop       r13
       pop       r14
       pop       r15
       ret
       mov       esi,[rsp+2C]
       lea       edx,[rsi+0FFFF]
       test      ecx,ecx
       jne       short 0000000000002A3A
       mov       ecx,1
       jmp       short 0000000000002A3F
       mov       ecx,0FFFFFFFF
       test      r15,r15
       je        near ptr 0000000000002ACB
       xor       r8d,r8d
       mov       r9d,[r15+8]
       dec       r9d
       test      r9d,r9d
       jle       short 0000000000002ACB
       mov       r10d,r8d
       mov       r10d,[r15+r10*4+10]
       cmp       ebp,0FFFFFFFF
       jne       short 0000000000002A6F
       not       r10d
       cmp       r8d,r14d
       jg        short 0000000000002A6F
       inc       r10d
       cmp       edx,ebx
       jae       near ptr 0000000000002B9D
       mov       r11d,edx
       mov       [rdi+r11],r10b
       add       edx,ecx
       cmp       edx,ebx
       jae       near ptr 0000000000002B9D
       mov       r11d,edx
       mov       esi,r10d
       shr       esi,8
       mov       [rdi+r11],sil
       add       edx,ecx
       cmp       edx,ebx
       jae       near ptr 0000000000002B9D
       mov       r11d,edx
       mov       esi,r10d
       shr       esi,10
       mov       [rdi+r11],sil
       add       edx,ecx
       cmp       edx,ebx
       jae       near ptr 0000000000002B9D
       mov       r11d,edx
       shr       r10d,18
       mov       [rdi+r11],r10b
       add       edx,ecx
       inc       r8d
       cmp       r9d,r8d
       jg        short 0000000000002A57
       cmp       edx,ebx
       jae       near ptr 0000000000002B9D
       mov       r8d,edx
       mov       [rdi+r8],r13b
       mov       esi,[rsp+34]
       test      esi,esi
       je        short 0000000000002B30
       add       edx,ecx
       cmp       edx,ebx
       jae       near ptr 0000000000002B9D
       mov       r8d,edx
       mov       r9d,r13d
       shr       r9d,8
       mov       [rdi+r8],r9b
       cmp       esi,1
       je        short 0000000000002B30
       add       edx,ecx
       cmp       edx,ebx
       jae       near ptr 0000000000002B9D
       mov       r8d,edx
       mov       r9d,r13d
       shr       r9d,10
       mov       [rdi+r8],r9b
       cmp       esi,2
       je        short 0000000000002B30
       add       edx,ecx
       cmp       edx,ebx
       jae       short 0000000000002B9D
       mov       r8d,edx
       mov       r9d,r13d
       shr       r9d,18
       mov       [rdi+r8],r9b
       cmp       dword ptr [rsp+30],0
       je        short 0000000000002B43
       add       edx,ecx
       cmp       edx,ebx
       jae       short 0000000000002B9D
       mov       ecx,edx
       mov       [rdi+rcx],r12b
       add       rsp,38
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       pop       r12
       pop       r13
       pop       r14
       pop       r15
       ret
       call      000000000000A810
       mov       rcx,offset MT_System.OverflowException
       call      0000000000002AE0
       mov       rsi,rax
       mov       ecx,34B
       mov       rdx,7FF9F84F2BE8
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [1018]
       mov       rdx,rax
       mov       rcx,rsi
       call      qword ptr [3480]
       mov       rcx,rsi
       call      0000000000002B00
       int       3
       call      000000000000AB50
       int       3
; Total bytes of code 995

System.Numerics.Tests.Perf_BigInteger.ToByteArray(numberString: -2147483648)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 16.05342469664651 > 14.993737220391436.
IsChangePoint: Marked as a change because one of 7/2/2022 7:35:06 PM, 7/6/2022 3:55:24 AM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -19.986530032878612 (T) = (0 -16.24199875551821) / Math.Sqrt((0.16541636278037125 / (20)) + (0.06799508381887506 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.1400872968643163 = (14.246276403736825 - 16.24199875551821) / 14.246276403736825 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Numerics.Tests.Perf_BigInteger.ToByteArray(BigIntegerData)
       sub       rsp,58
       vxorps    xmm4,xmm4,xmm4
       vmovdqa   xmmword ptr [rsp+30],xmm4
       vmovdqa   xmmword ptr [rsp+40],xmm4
       xor       eax,eax
       mov       [rsp+50],rax
       add       rdx,18
       mov       r8,[rdx]
       mov       [rsp+48],r8
       mov       r8d,[rdx+8]
       mov       [rsp+50],r8d
       xor       r8d,r8d
       mov       [rsp+30],r8
       xor       r8d,r8d
       mov       [rsp+38],r8d
       mov       [rsp+20],r8d
       lea       r8,[rsp+40]
       mov       [rsp+28],r8
       lea       r8,[rsp+30]
       lea       rcx,[rsp+48]
       xor       edx,edx
       xor       r9d,r9d
       call      qword ptr [1648]
       nop
       add       rsp,58
       ret
; Total bytes of code 106

; System.Numerics.BigInteger.TryGetBytes(GetBytesMode, System.Span`1<Byte>, Boolean, Boolean, Int32 ByRef)
       push      r15
       push      r14
       push      r13
       push      r12
       push      rdi
       push      rsi
       push      rbp
       push      rbx
       sub       rsp,38
       mov       rsi,[rsp+0A8]
       mov       rdi,[r8]
       mov       ebx,[r8+8]
       mov       ebp,[rcx+8]
       test      ebp,ebp
       jne       short 00000000000028AE
       test      edx,edx
       je        short 0000000000002853
       cmp       edx,1
       je        short 000000000000286C
       jmp       short 0000000000002877
       xchg      ax,ax
       mov       rcx,offset MT_System.Byte[]
       mov       edx,1
       call      000000000000C4B0
       jmp       near ptr 0000000000002BA3
       mov       dword ptr [rsi],1
       jmp       near ptr 0000000000002A75
       mov       dword ptr [rsi],1
       test      ebx,ebx
       je        near ptr 0000000000002A75
       mov       byte ptr [rdi],0
       mov       rcx,7FFF6C2A2F38
       mov       edx,11
       call      000000000000C560
       mov       rdx,298000090A8
       mov       rax,[rdx]
       jmp       near ptr 0000000000002BA3
       movzx     eax,r9b
       test      eax,eax
       je        short 00000000000028BE
       test      ebp,ebp
       jl        near ptr 0000000000002BB9
       xor       r14d,r14d
       mov       r15,[rcx]
       test      r15,r15
       jne       short 00000000000028E2
       test      ebp,ebp
       jl        short 00000000000028D1
       xor       ecx,ecx
       jmp       short 00000000000028D6
       mov       ecx,0FF
       movzx     r12d,cl
       mov       r13d,ebp
       jmp       short 0000000000002958
       nop       dword ptr [rax]
       cmp       ebp,0FFFFFFFF
       jne       short 000000000000293C
       mov       r12d,0FF
       mov       ecx,[r15+8]
       test      ecx,ecx
       je        near ptr 0000000000002BFD
       cmp       dword ptr [r15+10],0
       jne       short 0000000000002917
       inc       r14d
       cmp       r14d,ecx
       jae       near ptr 0000000000002BFD
       mov       r8d,r14d
       cmp       dword ptr [r15+r8*4+10],0
       je        short 0000000000002900
       lea       r8d,[rcx+0FFFF]
       cmp       r8d,ecx
       jae       near ptr 0000000000002BFD
       mov       ecx,r8d
       mov       ecx,[r15+rcx*4+10]
       mov       r13d,ecx
       not       r13d
       cmp       r8d,r14d
       jne       short 0000000000002958
       inc       r13d
       jmp       short 0000000000002958
       xor       r12d,r12d
       mov       ecx,[r15+8]
       lea       r8d,[rcx+0FFFF]
       cmp       r8d,ecx
       jae       near ptr 0000000000002BFD
       mov       ecx,r8d
       mov       r13d,[r15+rcx*4+10]
       mov       ecx,r13d
       shr       ecx,18
       movzx     ecx,cl
       cmp       ecx,r12d
       je        short 000000000000296E
       mov       r9d,3
       jmp       short 00000000000029A1
       mov       ecx,r13d
       shr       ecx,10
       movzx     ecx,cl
       cmp       ecx,r12d
       je        short 0000000000002984
       mov       r9d,2
       jmp       short 00000000000029A1
       mov       ecx,r13d
       shr       ecx,8
       movzx     ecx,cl
       cmp       ecx,r12d
       je        short 000000000000299A
       mov       r9d,1
       jmp       short 00000000000029A1
       movzx     ecx,r13b
       xor       r9d,r9d
       and       ecx,80
       mov       r8d,r12d
       and       r8d,80
       cmp       ecx,r8d
       je        short 00000000000029BF
       xor       ecx,ecx
       test      eax,eax
       sete      cl
       jmp       short 00000000000029C1
       xor       ecx,ecx
       movzx     eax,cl
       mov       [rsp+30],eax
       mov       [rsp+34],r9d
       lea       ecx,[r9+1]
       test      eax,eax
       jne       short 00000000000029DA
       xor       r8d,r8d
       jmp       short 00000000000029E0
       mov       r8d,1
       add       ecx,r8d
       test      r15,r15
       je        short 0000000000002A09
       mov       r8d,[r15+8]
       sub       r8d,1
       jo        near ptr 0000000000002BB4
       imul      r8d,4
       jo        near ptr 0000000000002BB4
       add       ecx,r8d
       jo        near ptr 0000000000002BB4
       test      edx,edx
       je        short 0000000000002A14
       cmp       edx,1
       je        short 0000000000002A33
       jmp       short 0000000000002A37
       mov       [rsp+2C],ecx
       movsxd    rdx,ecx
       mov       rcx,offset MT_System.Byte[]
       call      000000000000C4B0
       lea       rdi,[rax+10]
       mov       ebx,[rax+8]
       jmp       short 0000000000002A62
       mov       [rsi],ecx
       jmp       short 0000000000002A75
       mov       [rsi],ecx
       mov       [rsp+2C],ecx
       cmp       ebx,ecx
       jl        short 0000000000002A75
       mov       rcx,7FFF6C2A2F38
       mov       edx,11
       call      000000000000C560
       mov       rax,298000090A8
       mov       rax,[rax]
       mov       esi,[rsp+0A0]
       movzx     ecx,sil
       test      ecx,ecx
       jne       short 0000000000002A88
       xor       edx,edx
       jmp       short 0000000000002A8F
       xor       eax,eax
       add       rsp,38
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       pop       r12
       pop       r13
       pop       r14
       pop       r15
       ret
       mov       esi,[rsp+2C]
       lea       edx,[rsi+0FFFF]
       test      ecx,ecx
       jne       short 0000000000002A9A
       mov       ecx,1
       jmp       short 0000000000002A9F
       mov       ecx,0FFFFFFFF
       test      r15,r15
       je        near ptr 0000000000002B2B
       xor       r8d,r8d
       mov       r9d,[r15+8]
       dec       r9d
       test      r9d,r9d
       jle       short 0000000000002B2B
       mov       r10d,r8d
       mov       r10d,[r15+r10*4+10]
       cmp       ebp,0FFFFFFFF
       jne       short 0000000000002ACF
       not       r10d
       cmp       r8d,r14d
       jg        short 0000000000002ACF
       inc       r10d
       cmp       edx,ebx
       jae       near ptr 0000000000002BFD
       mov       r11d,edx
       mov       [rdi+r11],r10b
       add       edx,ecx
       cmp       edx,ebx
       jae       near ptr 0000000000002BFD
       mov       r11d,edx
       mov       esi,r10d
       shr       esi,8
       mov       [rdi+r11],sil
       add       edx,ecx
       cmp       edx,ebx
       jae       near ptr 0000000000002BFD
       mov       r11d,edx
       mov       esi,r10d
       shr       esi,10
       mov       [rdi+r11],sil
       add       edx,ecx
       cmp       edx,ebx
       jae       near ptr 0000000000002BFD
       mov       r11d,edx
       shr       r10d,18
       mov       [rdi+r11],r10b
       add       edx,ecx
       inc       r8d
       cmp       r9d,r8d
       jg        short 0000000000002AB7
       cmp       edx,ebx
       jae       near ptr 0000000000002BFD
       mov       r8d,edx
       mov       [rdi+r8],r13b
       mov       esi,[rsp+34]
       test      esi,esi
       je        short 0000000000002B90
       add       edx,ecx
       cmp       edx,ebx
       jae       near ptr 0000000000002BFD
       mov       r8d,edx
       mov       r9d,r13d
       shr       r9d,8
       mov       [rdi+r8],r9b
       cmp       esi,1
       je        short 0000000000002B90
       add       edx,ecx
       cmp       edx,ebx
       jae       near ptr 0000000000002BFD
       mov       r8d,edx
       mov       r9d,r13d
       shr       r9d,10
       mov       [rdi+r8],r9b
       cmp       esi,2
       je        short 0000000000002B90
       add       edx,ecx
       cmp       edx,ebx
       jae       short 0000000000002BFD
       mov       r8d,edx
       mov       r9d,r13d
       shr       r9d,18
       mov       [rdi+r8],r9b
       cmp       dword ptr [rsp+30],0
       je        short 0000000000002BA3
       add       edx,ecx
       cmp       edx,ebx
       jae       short 0000000000002BFD
       mov       ecx,edx
       mov       [rdi+rcx],r12b
       add       rsp,38
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       pop       r12
       pop       r13
       pop       r14
       pop       r15
       ret
       call      00000000000065F0
       mov       rcx,offset MT_System.OverflowException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,34B
       mov       rdx,7FFF6C2A2AA0
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [1018]
       mov       rdx,rax
       mov       rcx,rsi
       call      qword ptr [3480]
       mov       rcx,rsi
       call      0000000000004690
       int       3
       call      0000000000006930
       int       3
; Total bytes of code 995

Compare Jit Disasm

; System.Numerics.Tests.Perf_BigInteger.ToByteArray(BigIntegerData)
       sub       rsp,58
       vxorps    xmm4,xmm4,xmm4
       vmovdqa   xmmword ptr [rsp+30],xmm4
       vmovdqa   xmmword ptr [rsp+40],xmm4
       xor       eax,eax
       mov       [rsp+50],rax
       add       rdx,18
       mov       r8,[rdx]
       mov       [rsp+48],r8
       mov       r8d,[rdx+8]
       mov       [rsp+50],r8d
       xor       r8d,r8d
       mov       [rsp+30],r8
       xor       r8d,r8d
       mov       [rsp+38],r8d
       mov       [rsp+20],r8d
       lea       r8,[rsp+40]
       mov       [rsp+28],r8
       lea       r8,[rsp+30]
       lea       rcx,[rsp+48]
       xor       edx,edx
       xor       r9d,r9d
       call      qword ptr [1648]
       nop
       add       rsp,58
       ret
; Total bytes of code 106

; System.Numerics.BigInteger.TryGetBytes(GetBytesMode, System.Span`1<Byte>, Boolean, Boolean, Int32 ByRef)
       push      r15
       push      r14
       push      r13
       push      r12
       push      rdi
       push      rsi
       push      rbp
       push      rbx
       sub       rsp,38
       mov       rsi,[rsp+0A8]
       mov       rdi,[r8]
       mov       ebx,[r8+8]
       mov       ebp,[rcx+8]
       test      ebp,ebp
       jne       short 00000000000028AE
       test      edx,edx
       je        short 0000000000002853
       cmp       edx,1
       je        short 000000000000286C
       jmp       short 0000000000002877
       xchg      ax,ax
       mov       rcx,offset MT_System.Byte[]
       mov       edx,1
       call      0000000000002C00
       jmp       near ptr 0000000000002BA3
       mov       dword ptr [rsi],1
       jmp       near ptr 0000000000002A75
       mov       dword ptr [rsi],1
       test      ebx,ebx
       je        near ptr 0000000000002A75
       mov       byte ptr [rdi],0
       mov       rcx,7FF9F8583090
       mov       edx,12
       call      0000000000002CB0
       mov       rdx,20A0C8090A8
       mov       rax,[rdx]
       jmp       near ptr 0000000000002BA3
       movzx     eax,r9b
       test      eax,eax
       je        short 00000000000028BE
       test      ebp,ebp
       jl        near ptr 0000000000002BB9
       xor       r14d,r14d
       mov       r15,[rcx]
       test      r15,r15
       jne       short 00000000000028E2
       test      ebp,ebp
       jl        short 00000000000028D1
       xor       ecx,ecx
       jmp       short 00000000000028D6
       mov       ecx,0FF
       movzx     r12d,cl
       mov       r13d,ebp
       jmp       short 0000000000002958
       nop       dword ptr [rax]
       cmp       ebp,0FFFFFFFF
       jne       short 000000000000293C
       mov       r12d,0FF
       mov       ecx,[r15+8]
       test      ecx,ecx
       je        near ptr 0000000000002BFD
       cmp       dword ptr [r15+10],0
       jne       short 0000000000002917
       inc       r14d
       cmp       r14d,ecx
       jae       near ptr 0000000000002BFD
       mov       r8d,r14d
       cmp       dword ptr [r15+r8*4+10],0
       je        short 0000000000002900
       lea       r8d,[rcx+0FFFF]
       cmp       r8d,ecx
       jae       near ptr 0000000000002BFD
       mov       ecx,r8d
       mov       ecx,[r15+rcx*4+10]
       mov       r13d,ecx
       not       r13d
       cmp       r8d,r14d
       jne       short 0000000000002958
       inc       r13d
       jmp       short 0000000000002958
       xor       r12d,r12d
       mov       ecx,[r15+8]
       lea       r8d,[rcx+0FFFF]
       cmp       r8d,ecx
       jae       near ptr 0000000000002BFD
       mov       ecx,r8d
       mov       r13d,[r15+rcx*4+10]
       mov       ecx,r13d
       shr       ecx,18
       movzx     ecx,cl
       cmp       ecx,r12d
       je        short 000000000000296E
       mov       r9d,3
       jmp       short 00000000000029A1
       mov       ecx,r13d
       shr       ecx,10
       movzx     ecx,cl
       cmp       ecx,r12d
       je        short 0000000000002984
       mov       r9d,2
       jmp       short 00000000000029A1
       mov       ecx,r13d
       shr       ecx,8
       movzx     ecx,cl
       cmp       ecx,r12d
       je        short 000000000000299A
       mov       r9d,1
       jmp       short 00000000000029A1
       movzx     ecx,r13b
       xor       r9d,r9d
       and       ecx,80
       mov       r8d,r12d
       and       r8d,80
       cmp       ecx,r8d
       je        short 00000000000029BF
       xor       ecx,ecx
       test      eax,eax
       sete      cl
       jmp       short 00000000000029C1
       xor       ecx,ecx
       movzx     eax,cl
       mov       [rsp+30],eax
       mov       [rsp+34],r9d
       lea       ecx,[r9+1]
       test      eax,eax
       jne       short 00000000000029DA
       xor       r8d,r8d
       jmp       short 00000000000029E0
       mov       r8d,1
       add       ecx,r8d
       test      r15,r15
       je        short 0000000000002A09
       mov       r8d,[r15+8]
       sub       r8d,1
       jo        near ptr 0000000000002BB4
       imul      r8d,4
       jo        near ptr 0000000000002BB4
       add       ecx,r8d
       jo        near ptr 0000000000002BB4
       test      edx,edx
       je        short 0000000000002A14
       cmp       edx,1
       je        short 0000000000002A33
       jmp       short 0000000000002A37
       mov       [rsp+2C],ecx
       movsxd    rdx,ecx
       mov       rcx,offset MT_System.Byte[]
       call      0000000000002C00
       lea       rdi,[rax+10]
       mov       ebx,[rax+8]
       jmp       short 0000000000002A62
       mov       [rsi],ecx
       jmp       short 0000000000002A75
       mov       [rsi],ecx
       mov       [rsp+2C],ecx
       cmp       ebx,ecx
       jl        short 0000000000002A75
       mov       rcx,7FF9F8583090
       mov       edx,12
       call      0000000000002CB0
       mov       rax,20A0C8090A8
       mov       rax,[rax]
       mov       esi,[rsp+0A0]
       movzx     ecx,sil
       test      ecx,ecx
       jne       short 0000000000002A88
       xor       edx,edx
       jmp       short 0000000000002A8F
       xor       eax,eax
       add       rsp,38
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       pop       r12
       pop       r13
       pop       r14
       pop       r15
       ret
       mov       esi,[rsp+2C]
       lea       edx,[rsi+0FFFF]
       test      ecx,ecx
       jne       short 0000000000002A9A
       mov       ecx,1
       jmp       short 0000000000002A9F
       mov       ecx,0FFFFFFFF
       test      r15,r15
       je        near ptr 0000000000002B2B
       xor       r8d,r8d
       mov       r9d,[r15+8]
       dec       r9d
       test      r9d,r9d
       jle       short 0000000000002B2B
       mov       r10d,r8d
       mov       r10d,[r15+r10*4+10]
       cmp       ebp,0FFFFFFFF
       jne       short 0000000000002ACF
       not       r10d
       cmp       r8d,r14d
       jg        short 0000000000002ACF
       inc       r10d
       cmp       edx,ebx
       jae       near ptr 0000000000002BFD
       mov       r11d,edx
       mov       [rdi+r11],r10b
       add       edx,ecx
       cmp       edx,ebx
       jae       near ptr 0000000000002BFD
       mov       r11d,edx
       mov       esi,r10d
       shr       esi,8
       mov       [rdi+r11],sil
       add       edx,ecx
       cmp       edx,ebx
       jae       near ptr 0000000000002BFD
       mov       r11d,edx
       mov       esi,r10d
       shr       esi,10
       mov       [rdi+r11],sil
       add       edx,ecx
       cmp       edx,ebx
       jae       near ptr 0000000000002BFD
       mov       r11d,edx
       shr       r10d,18
       mov       [rdi+r11],r10b
       add       edx,ecx
       inc       r8d
       cmp       r9d,r8d
       jg        short 0000000000002AB7
       cmp       edx,ebx
       jae       near ptr 0000000000002BFD
       mov       r8d,edx
       mov       [rdi+r8],r13b
       mov       esi,[rsp+34]
       test      esi,esi
       je        short 0000000000002B90
       add       edx,ecx
       cmp       edx,ebx
       jae       near ptr 0000000000002BFD
       mov       r8d,edx
       mov       r9d,r13d
       shr       r9d,8
       mov       [rdi+r8],r9b
       cmp       esi,1
       je        short 0000000000002B90
       add       edx,ecx
       cmp       edx,ebx
       jae       near ptr 0000000000002BFD
       mov       r8d,edx
       mov       r9d,r13d
       shr       r9d,10
       mov       [rdi+r8],r9b
       cmp       esi,2
       je        short 0000000000002B90
       add       edx,ecx
       cmp       edx,ebx
       jae       short 0000000000002BFD
       mov       r8d,edx
       mov       r9d,r13d
       shr       r9d,18
       mov       [rdi+r8],r9b
       cmp       dword ptr [rsp+30],0
       je        short 0000000000002BA3
       add       edx,ecx
       cmp       edx,ebx
       jae       short 0000000000002BFD
       mov       ecx,edx
       mov       [rdi+rcx],r12b
       add       rsp,38
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       pop       r12
       pop       r13
       pop       r14
       pop       r15
       ret
       call      000000000000A810
       mov       rcx,offset MT_System.OverflowException
       call      0000000000002AE0
       mov       rsi,rax
       mov       ecx,34B
       mov       rdx,7FF9F8582BE8
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [1018]
       mov       rdx,rax
       mov       rcx,rsi
       call      qword ptr [3480]
       mov       rcx,rsi
       call      0000000000002B00
       int       3
       call      000000000000AB50
       int       3
; Total bytes of code 995

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

### Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Tests.Perf_Array

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ArrayResize - Duration of single invocation	100.24 ns	128.63 ns	1.28	0.18	False	657.1666666666666	837.25	1.2740299264519401	Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_Array*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Array.ArrayResize

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 128.6268325 > 105.7096758173077.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -39.14629331379754 (T) = (0 -125.58176075299141) / Math.Sqrt((3.1118961163306795 / (20)) + (10.258895471383422 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.25015699591093254 = (100.45279206031695 - 125.58176075299141) / 100.45279206031695 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; BenchmarkDotNet.Autogenerated.Runnable_0.__ForDisassemblyDiagnoser__()
       push      rbp
       sub       rsp,20
       lea       rbp,[rsp+20]
       mov       [rbp+10],rcx
       mov       rcx,[rbp+10]
       cmp       dword ptr [rcx+80],0B
       jne       short 000000000000E155
       mov       rcx,[rbp+10]
       call      qword ptr [0B300]
       nop
       add       rsp,20
       pop       rbp
       ret
; Total bytes of code 44

Compare Jit Disasm

; BenchmarkDotNet.Autogenerated.Runnable_0.__ForDisassemblyDiagnoser__()
       push      rbp
       sub       rsp,20
       lea       rbp,[rsp+20]
       mov       [rbp+10],rcx
       mov       rcx,[rbp+10]
       cmp       dword ptr [rcx+80],0B
       jne       short 000000000000E1F5
       mov       rcx,[rbp+10]
       call      qword ptr [0B300]
       nop
       add       rsp,20
       pop       rbp
       ret
; Total bytes of code 44

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Collections.CtorDefaultSizeNonGeneric

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ArrayList - Duration of single invocation	4.35 ns	6.35 ns	1.46	0.16	False				Trace	Trace
Stack - Duration of single invocation	11.40 ns	12.41 ns	1.09	0.12	False				Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.CtorDefaultSizeNonGeneric*'

Payloads

Baseline
Compare

Histogram

System.Collections.CtorDefaultSizeNonGeneric.ArrayList

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 6.349900159528348 > 4.665627355285841.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -17.850062885980364 (T) = (0 -6.281287252496692) / Math.Sqrt((0.15152383853908083 / (20)) + (0.04016358805409424 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.3572829154659268 = (4.627839325849362 - 6.281287252496692) / 4.627839325849362 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Collections.CtorDefaultSizeNonGeneric.ArrayList()
       push      rsi
       sub       rsp,20
       mov       rcx,offset MT_System.Collections.ArrayList
       call      000000000000C390
       mov       rsi,rax
       mov       rdx,1FD3DC01FF8
       mov       rdx,[rdx]
       lea       rcx,[rsi+8]
       call      0000000000000010
       mov       rax,rsi
       add       rsp,20
       pop       rsi
       ret
; Total bytes of code 54

Compare Jit Disasm

; System.Collections.CtorDefaultSizeNonGeneric.ArrayList()
       push      rsi
       sub       rsp,20
       mov       rcx,offset MT_System.Collections.ArrayList
       call      0000000000002AE0
       mov       rsi,rax
       mov       rdx,1AE24801FF8
       mov       rdx,[rdx]
       lea       rcx,[rsi+8]
       call      0000000000000010
       mov       rax,rsi
       add       rsp,20
       pop       rsi
       ret
; Total bytes of code 54

System.Collections.CtorDefaultSizeNonGeneric.Stack

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 12.414858880552014 > 12.013110389620458.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -23.183718536412478 (T) = (0 -12.662280430428078) / Math.Sqrt((0.02506237368913924 / (20)) + (0.05871379775120969 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.1055910344236124 = (11.452951440610603 - 12.662280430428078) / 11.452951440610603 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Collections.CtorDefaultSizeNonGeneric.Stack()
       push      rsi
       sub       rsp,20
       mov       rcx,offset MT_System.Collections.Stack
       call      000000000000C390
       mov       rsi,rax
       mov       rcx,offset MT_System.Object[]
       mov       edx,0A
       call      000000000000C510
       lea       rcx,[rsi+8]
       mov       rdx,rax
       call      0000000000000010
       xor       eax,eax
       mov       [rsi+10],eax
       mov       [rsi+14],eax
       mov       rax,rsi
       add       rsp,20
       pop       rsi
       ret
; Total bytes of code 72

Compare Jit Disasm

; System.Collections.CtorDefaultSizeNonGeneric.Stack()
       push      rsi
       sub       rsp,20
       mov       rcx,offset MT_System.Collections.Stack
       call      0000000000002AE0
       mov       rsi,rax
       mov       rcx,offset MT_System.Object[]
       mov       edx,0A
       call      0000000000002C60
       lea       rcx,[rsi+8]
       mov       rdx,rax
       call      0000000000000010
       xor       eax,eax
       mov       [rsi+10],eax
       mov       [rsi+14],eax
       mov       rax,rsi
       add       rsp,20
       pop       rsi
       ret
; Total bytes of code 72

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

[performanceautofiler]

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Tests.Perf_Int16

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ToString - Duration of single invocation	12.10 ns	13.76 ns	1.14	0.06	False				Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_Int16*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Int16.ToString(value: 32767)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 13.756061183541616 > 12.157771960058437.
IsChangePoint: Marked as a change because one of 6/27/2022 8:54:23 AM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -36.894595702433605 (T) = (0 -14.303807128445163) / Math.Sqrt((0.04306353375013142 / (20)) + (0.15500533332627361 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.2504169716470244 = (11.439229835152087 - 14.303807128445163) / 11.439229835152087 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Tests.Perf_Int16.ToString(Int16)
       sub       rsp,28
       movsx     rcx,dx
       call      qword ptr [9300]
       nop
       add       rsp,28
       ret
; Total bytes of code 20

; System.Number.Int32ToDecStr(Int32)
       push      rdi
       push      rsi
       sub       rsp,28
       xor       eax,eax
       mov       [rsp+20],rax
       mov       esi,ecx
       test      esi,esi
       jl        near ptr 000000000000F5DD
       mov       ecx,esi
       mov       eax,1
       cmp       ecx,186A0
       jae       near ptr 000000000000F5C3
       cmp       ecx,0A
       jae       short 000000000000F53A
       mov       edi,eax
       cmp       edi,1
       jne       short 000000000000F543
       mov       rcx,1B3610002C8
       mov       rcx,[rcx]
       cmp       esi,[rcx+8]
       jae       near ptr 000000000000F603
       mov       eax,esi
       mov       rax,[rcx+rax*8+10]
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       cmp       ecx,64
       jae       short 000000000000F59B
       inc       eax
       jmp       short 000000000000F50F
       mov       ecx,edi
       call      0
       test      rax,rax
       je        near ptr 000000000000F5FC
       lea       rdx,[rax+0C]
       mov       [rsp+20],rdx
       mov       rdx,[rsp+20]
       movsxd    rcx,edi
       lea       rdx,[rdx+rcx*2]
       mov       ecx,0CCCCCCCD
       mov       r8d,esi
       imul      rcx,r8
       shr       rcx,23
       lea       r8d,[rcx+rcx*4]
       add       r8d,r8d
       sub       esi,r8d
       add       rdx,0FFFFFFFFFFFFFFFE
       add       esi,30
       mov       [rdx],si
       test      ecx,ecx
       mov       esi,ecx
       jne       short 000000000000F568
       xor       edx,edx
       mov       [rsp+20],rdx
       jmp       short 000000000000F533
       cmp       ecx,3E8
       jae       short 000000000000F5AB
       add       eax,2
       jmp       near ptr 000000000000F50F
       cmp       ecx,2710
       jae       short 000000000000F5BB
       add       eax,3
       jmp       near ptr 000000000000F50F
       add       eax,4
       jmp       near ptr 000000000000F50F
       mov       ecx,esi
       shr       ecx,5
       imul      rcx,0A7C5AC5
       shr       rcx,27
       mov       eax,6
       jmp       near ptr 000000000000F50A
       call      qword ptr [5858]
       mov       r8,[rax+28]
       mov       ecx,esi
       mov       edx,0FFFFFFFF
       call      qword ptr [9318]
       nop
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       xor       edx,edx
       jmp       near ptr 000000000000F561
       call      0000000000006930
       int       3
; Total bytes of code 297

Compare Jit Disasm

; System.Tests.Perf_Int16.ToString(Int16)
       sub       rsp,28
       movsx     rcx,dx
       call      qword ptr [9300]
       nop
       add       rsp,28
       ret
; Total bytes of code 20

; System.Number.Int32ToDecStr(Int32)
       push      rdi
       push      rsi
       sub       rsp,28
       xor       eax,eax
       mov       [rsp+20],rax
       mov       esi,ecx
       test      esi,esi
       jl        near ptr 000000000000F5DD
       mov       ecx,esi
       mov       eax,1
       cmp       ecx,186A0
       jae       near ptr 000000000000F5C3
       cmp       ecx,0A
       jae       short 000000000000F53A
       mov       edi,eax
       cmp       edi,1
       jne       short 000000000000F543
       mov       rcx,25D8C8002C8
       mov       rcx,[rcx]
       cmp       esi,[rcx+8]
       jae       near ptr 000000000000F603
       mov       eax,esi
       mov       rax,[rcx+rax*8+10]
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       cmp       ecx,64
       jae       short 000000000000F59B
       inc       eax
       jmp       short 000000000000F50F
       mov       ecx,edi
       call      0
       test      rax,rax
       je        near ptr 000000000000F5FC
       lea       rdx,[rax+0C]
       mov       [rsp+20],rdx
       mov       rdx,[rsp+20]
       movsxd    rcx,edi
       lea       rdx,[rdx+rcx*2]
       mov       ecx,0CCCCCCCD
       mov       r8d,esi
       imul      rcx,r8
       shr       rcx,23
       lea       r8d,[rcx+rcx*4]
       add       r8d,r8d
       sub       esi,r8d
       add       rdx,0FFFFFFFFFFFFFFFE
       add       esi,30
       mov       [rdx],si
       test      ecx,ecx
       mov       esi,ecx
       jne       short 000000000000F568
       xor       edx,edx
       mov       [rsp+20],rdx
       jmp       short 000000000000F533
       cmp       ecx,3E8
       jae       short 000000000000F5AB
       add       eax,2
       jmp       near ptr 000000000000F50F
       cmp       ecx,2710
       jae       short 000000000000F5BB
       add       eax,3
       jmp       near ptr 000000000000F50F
       add       eax,4
       jmp       near ptr 000000000000F50F
       mov       ecx,esi
       shr       ecx,5
       imul      rcx,0A7C5AC5
       shr       rcx,27
       mov       eax,6
       jmp       near ptr 000000000000F50A
       call      qword ptr [5858]
       mov       r8,[rax+28]
       mov       ecx,esi
       mov       edx,0FFFFFFFF
       call      qword ptr [9318]
       nop
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       xor       edx,edx
       jmp       near ptr 000000000000F561
       call      000000000000AB50
       int       3
; Total bytes of code 297

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

### Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Tests.Perf_GC<Byte>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
AllocateUninitializedArray - Duration of single invocation	435.67 ns	523.37 ns	1.20	0.01	False
AllocateArray - Duration of single invocation	699.96 ns	776.90 ns	1.11	0.01	False
AllocateUninitializedArray - Duration of single invocation	176.90 ns	189.86 ns	1.07	0.01	False
AllocateUninitializedArray - Duration of single invocation	43.49 ns	46.10 ns	1.06	0.21	False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_GC<Byte>*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_GC<Byte>.AllocateUninitializedArray(length: 10000, pinned: True)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 523.3681565219284 > 452.8249394787412.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -64.2386338196772 (T) = (0 -529.0355374674971) / Math.Sqrt((17.43161077799998 / (20)) + (53.329818864331095 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.2199603039179217 = (433.64979644705744 - 529.0355374674971) / 433.64979644705744 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_GC<Byte>.AllocateArray(length: 10000, pinned: True)

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 776.8973268741505 > 706.8051003397796.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -38.07211917203886 (T) = (0 -774.8242518288273) / Math.Sqrt((80.07426649258561 / (20)) + (81.67644257468983 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.13741832375922503 = (681.2130907720864 - 774.8242518288273) / 681.2130907720864 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_GC<Byte>.AllocateUninitializedArray(length: 1000, pinned: True)

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 189.85690272350948 > 187.41165283864103.
IsChangePoint: Marked as a change because one of 6/17/2022 8:24:28 PM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -19.41417524311558 (T) = (0 -190.20227229306644) / Math.Sqrt((3.561033392667478 / (20)) + (4.608983440271304 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.058510935943699785 = (179.68852832256704 - 190.20227229306644) / 179.68852832256704 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_GC<Byte>.AllocateUninitializedArray(length: 1000, pinned: False)

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 46.097186020970874 > 45.673160389643606.
IsChangePoint: Marked as a change because one of 8/9/2022 4:14:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -8.517798222005593 (T) = (0 -46.46054311704352) / Math.Sqrt((1.0377024639193047 / (21)) + (0.8548667229052257 / (39))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (21) + (39) - 2, .025) and -0.05148673386232912 = (44.185572314720794 - 46.46054311704352) / 44.185572314720794 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Collections.CtorDefaultSize<Int32>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Stack - Duration of single invocation	4.29 ns	6.47 ns	1.51	0.21	False
LinkedList - Duration of single invocation	3.14 ns	4.68 ns	1.49	0.34	False
Dictionary - Duration of single invocation	4.95 ns	6.69 ns	1.35	0.17	False
ConcurrentStack - Duration of single invocation	2.48 ns	4.45 ns	1.79	0.36	False
SortedSet - Duration of single invocation	4.89 ns	6.52 ns	1.33	0.15	False
SortedList - Duration of single invocation	10.24 ns	12.18 ns	1.19	0.14	False
Queue - Duration of single invocation	4.63 ns	6.75 ns	1.46	0.12	False
List - Duration of single invocation	4.28 ns	5.89 ns	1.38	0.20	False
HashSet - Duration of single invocation	4.10 ns	5.96 ns	1.46	0.20	False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.CtorDefaultSize<Int32>*'

Payloads

Baseline
Compare

Histogram

System.Collections.CtorDefaultSize<Int32>.Stack

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 6.470786113573551 > 4.589809042757351.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -33.192463352110785 (T) = (0 -6.2681113251720415) / Math.Sqrt((0.02124096543375175 / (20)) + (0.07312174429842645 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.39797784609113385 = (4.483698609887288 - 6.2681113251720415) / 4.483698609887288 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.CtorDefaultSize<Int32>.LinkedList

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 4.677195807072021 > 3.1049666724938927.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -47.873913723771594 (T) = (0 -4.79599633353647) / Math.Sqrt((0.012212565048682525 / (20)) + (0.030254292021756893 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.5849475954772169 = (3.0259652415147698 - 4.79599633353647) / 3.0259652415147698 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.CtorDefaultSize<Int32>.Dictionary

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 6.685929206811964 > 4.993871900371687.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -43.98454551328586 (T) = (0 -6.577188697175667) / Math.Sqrt((0.016405424078826874 / (20)) + (0.03147224813533291 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.36628542791699137 = (4.813919963417237 - 6.577188697175667) / 4.813919963417237 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.CtorDefaultSize<Int32>.ConcurrentStack

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 4.451034041307593 > 2.4486309177770247.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -61.395843424324596 (T) = (0 -4.1694514600738914) / Math.Sqrt((0.005833316896680374 / (20)) + (0.022126219085355725 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.748247867886203 = (2.384931528682573 - 4.1694514600738914) / 2.384931528682573 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.CtorDefaultSize<Int32>.SortedSet

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 6.518215879675685 > 5.13843160387654.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -23.646750193540715 (T) = (0 -6.685774548009164) / Math.Sqrt((0.07152410739227569 / (20)) + (0.03050464831173529 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.30373510650419855 = (5.128169453023495 - 6.685774548009164) / 5.128169453023495 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.CtorDefaultSize<Int32>.SortedList

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 12.180633856979304 > 10.878618365457568.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -14.421371197260138 (T) = (0 -12.191097669105726) / Math.Sqrt((0.19775575463751055 / (20)) + (0.01839306595680866 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.13679349385310702 = (10.724109290760088 - 12.191097669105726) / 10.724109290760088 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.CtorDefaultSize<Int32>.Queue

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 6.752356161878487 > 4.801494616274443.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -55.65624469022207 (T) = (0 -6.504311063826238) / Math.Sqrt((0.008046887416547481 / (20)) + (0.028506412943562574 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.40002448641411953 = (4.645855216779615 - 6.504311063826238) / 4.645855216779615 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.CtorDefaultSize<Int32>.List

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 5.886581529341046 > 4.66189350237304.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -17.030581924161464 (T) = (0 -6.025782238472299) / Math.Sqrt((0.12494509873958554 / (20)) + (0.039538468315041216 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.3165038181061331 = (4.577109580389015 - 6.025782238472299) / 4.577109580389015 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.CtorDefaultSize<Int32>.HashSet

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 5.964542127094708 > 4.2792831525689135.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -17.54067257346122 (T) = (0 -6.147588961003239) / Math.Sqrt((0.21212322496574285 / (20)) + (0.03990376384253138 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.44374163968238783 = (4.258094933353631 - 6.147588961003239) / 4.258094933353631 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

[performanceautofiler]

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in Microsoft.Extensions.DependencyInjection.GetService

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
NoDI - Duration of single invocation	2.39 ns	3.79 ns	1.58	0.33	False				Trace	Trace
Transient - Duration of single invocation	28.29 ns	31.30 ns	1.11	0.36	False	277.22736978785525	288.0521682998485	1.039046644349282	Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'Microsoft.Extensions.DependencyInjection.GetService*'

Payloads

Baseline
Compare

Histogram

Microsoft.Extensions.DependencyInjection.GetService.NoDI

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 3.7852503684934646 > 2.507731367679689.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -49.50544546392655 (T) = (0 -3.9234027066616504) / Math.Sqrt((0.004421348503006363 / (20)) + (0.02848542408038713 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.6272306464763667 = (2.411091946404435 - 3.9234027066616504) / 2.411091946404435 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; Microsoft.Extensions.DependencyInjection.GetService.NoDI()
       sub       rsp,28
       mov       rcx,offset MT_Microsoft.Extensions.DependencyInjection.ServiceProviderEngineBenchmark+A
       call      000000000000C390
       nop
       add       rsp,28
       ret
; Total bytes of code 25

Compare Jit Disasm

; Microsoft.Extensions.DependencyInjection.GetService.NoDI()
       sub       rsp,28
       mov       rcx,offset MT_Microsoft.Extensions.DependencyInjection.ServiceProviderEngineBenchmark+A
       call      0000000000002AE0
       nop
       add       rsp,28
       ret
; Total bytes of code 25

Microsoft.Extensions.DependencyInjection.GetService.Transient

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 31.29840814862656 > 30.29498246319837.
IsChangePoint: Marked as a change because one of 6/28/2022 10:14:54 AM, 7/24/2022 10:50:09 PM, 8/12/2022 9:58:48 AM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -3.7804845652205743 (T) = (0 -33.09333814326374) / Math.Sqrt((4.773680182149249 / (39)) + (6.595253275497794 / (20))) is less than -2.0024654592901125 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (39) + (20) - 2, .025) and -0.08320841601459109 = (30.5512195566416 - 33.09333814326374) / 30.5512195566416 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; Microsoft.Extensions.DependencyInjection.GetService.Transient()
       push      rsi
       sub       rsp,20
       mov       rsi,[rcx+8]
       test      rsi,rsi
       je        short 000000000000C38C
       mov       rcx,offset MT_Microsoft.Extensions.DependencyInjection.ServiceProviderEngineBenchmark+A
       call      000000000000D240
       mov       rdx,rax
       mov       rcx,rsi
       mov       r11,7FFEBF5D0560
       call      qword ptr [r11]
       mov       r8,rax
       test      r8,r8
       je        short 000000000000C383
       mov       rcx,offset MT_Microsoft.Extensions.DependencyInjection.ServiceProviderEngineBenchmark+A
       cmp       [r8],rcx
       je        short 000000000000C383
       mov       rdx,rax
       call      qword ptr [0B8B8]
       mov       r8,rax
       mov       rax,r8
       add       rsp,20
       pop       rsi
       ret
       mov       ecx,360
       mov       rdx,7FFEBFC20F28
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [71B0]
       int       3
; Total bytes of code 122

Compare Jit Disasm

; Microsoft.Extensions.DependencyInjection.GetService.Transient()
       push      rsi
       sub       rsp,20
       mov       rsi,[rcx+8]
       test      rsi,rsi
       je        short 000000000000C38C
       mov       rcx,offset MT_Microsoft.Extensions.DependencyInjection.ServiceProviderEngineBenchmark+A
       call      0000000000005E90
       mov       rdx,rax
       mov       rcx,rsi
       mov       r11,7FFE84820560
       call      qword ptr [r11]
       mov       r8,rax
       test      r8,r8
       je        short 000000000000C383
       mov       rcx,offset MT_Microsoft.Extensions.DependencyInjection.ServiceProviderEngineBenchmark+A
       cmp       [r8],rcx
       je        short 000000000000C383
       mov       rdx,rax
       call      qword ptr [0B8B8]
       mov       r8,rax
       mov       rax,r8
       add       rsp,20
       pop       rsi
       ret
       mov       ecx,360
       mov       rdx,7FFE84E70FA0
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [71B0]
       int       3
; Total bytes of code 122

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

### Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Text.Tests.Perf_Encoding

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
GetChars - Duration of single invocation	29.99 ns	33.93 ns	1.13	0.01	False	367.9115805523227	379.1011793872403	1.0304138261103915	Trace	Trace
GetEncoder - Duration of single invocation	7.57 ns	9.30 ns	1.23	0.17	False	76.44415332811516	79.34593515288546	1.0379594998235537	Trace	Trace
GetString - Duration of single invocation	24.84 ns	26.98 ns	1.09	0.04	False	305.95906893119394	317.332449645762	1.03717288313858	Trace	Trace
GetEncoder - Duration of single invocation	7.55 ns	9.08 ns	1.20	0.18	False	76.43639984981009	79.84337002968786	1.0445726144424925	Trace	Trace
GetBytes - Duration of single invocation	19.80 ns	21.10 ns	1.07	0.05	False				Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Text.Tests.Perf_Encoding*'

Payloads

Baseline
Compare

Histogram

System.Text.Tests.Perf_Encoding.GetChars(size: 16, encName: "utf-8")

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 33.926243644992276 > 31.230915095877418.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -20.743945411136878 (T) = (0 -32.66492185244365) / Math.Sqrt((0.13822395416538674 / (20)) + (0.41740743157517185 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.0912742141628035 = (29.93282662461085 - 32.66492185244365) / 29.93282662461085 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Text.Tests.Perf_Encoding.GetChars()
       mov       [rsp+8],rcx
       mov       rax,[rcx+10]
       mov       rcx,rax
       mov       rdx,[rsp+8]
       mov       rdx,[rdx+20]
       mov       rax,[rax]
       mov       rax,[rax+60]
       jmp       qword ptr [rax+10]
; Total bytes of code 32

Compare Jit Disasm

; System.Text.Tests.Perf_Encoding.GetChars()
       mov       [rsp+8],rcx
       mov       rax,[rcx+10]
       mov       rcx,rax
       mov       rdx,[rsp+8]
       mov       rdx,[rdx+20]
       mov       rax,[rax]
       mov       rax,[rax+60]
       jmp       qword ptr [rax+10]
; Total bytes of code 32

System.Text.Tests.Perf_Encoding.GetEncoder(size: 16, encName: "ascii")

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 9.295350757793619 > 7.87446730379944.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -12.225365986462801 (T) = (0 -9.23860001386331) / Math.Sqrt((0.23621698584078935 / (20)) + (0.0788802641372791 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.18392938173281548 = (7.803337054057707 - 9.23860001386331) / 7.803337054057707 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Text.Tests.Perf_Encoding.GetEncoder()
       mov       rcx,[rcx+10]
       mov       rax,[rcx]
       mov       rax,[rax+68]
       jmp       qword ptr [rax+10]
; Total bytes of code 15

Compare Jit Disasm

; System.Text.Tests.Perf_Encoding.GetEncoder()
       mov       rcx,[rcx+10]
       mov       rax,[rcx]
       mov       rax,[rax+68]
       jmp       qword ptr [rax+10]
; Total bytes of code 15

System.Text.Tests.Perf_Encoding.GetString(size: 16, encName: "ascii")

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 26.97508527786508 > 26.069942162579313.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -19.67651283380698 (T) = (0 -26.909335457227588) / Math.Sqrt((0.09945381434117727 / (20)) + (0.18101776813792286 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.07673113057581112 = (24.991694484431868 - 26.909335457227588) / 24.991694484431868 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Text.Tests.Perf_Encoding.GetString()
       mov       [rsp+8],rcx
       mov       rax,[rcx+10]
       mov       rcx,rax
       mov       rdx,[rsp+8]
       mov       rdx,[rdx+20]
       mov       rax,[rax]
       mov       rax,[rax+68]
       jmp       qword ptr [rax+28]
; Total bytes of code 32

Compare Jit Disasm

; System.Text.Tests.Perf_Encoding.GetString()
       mov       [rsp+8],rcx
       mov       rax,[rcx+10]
       mov       rcx,rax
       mov       rdx,[rsp+8]
       mov       rdx,[rdx+20]
       mov       rax,[rax]
       mov       rax,[rax+68]
       jmp       qword ptr [rax+28]
; Total bytes of code 32

System.Text.Tests.Perf_Encoding.GetEncoder(size: 512, encName: "ascii")

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 9.079221861086449 > 7.958330484303827.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -21.513458279197636 (T) = (0 -9.245481712605804) / Math.Sqrt((0.05598898260743587 / (20)) + (0.09937499495946367 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.2035770148365556 = (7.681670220215471 - 9.245481712605804) / 7.681670220215471 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Text.Tests.Perf_Encoding.GetEncoder()
       mov       rcx,[rcx+10]
       mov       rax,[rcx]
       mov       rax,[rax+68]
       jmp       qword ptr [rax+10]
; Total bytes of code 15

Compare Jit Disasm

; System.Text.Tests.Perf_Encoding.GetEncoder()
       mov       rcx,[rcx+10]
       mov       rax,[rcx]
       mov       rax,[rax+68]
       jmp       qword ptr [rax+10]
; Total bytes of code 15

System.Text.Tests.Perf_Encoding.GetBytes(size: 16, encName: "utf-8")

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 21.103960346990068 > 20.467336992674717.
IsChangePoint: Marked as a change because one of 7/2/2022 7:35:06 PM, 7/6/2022 3:55:24 AM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -27.84679969484177 (T) = (0 -21.199606504343503) / Math.Sqrt((0.035878301767625874 / (20)) + (0.08688615423634008 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.09018353153387962 = (19.44590602512205 - 21.199606504343503) / 19.44590602512205 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Text.Tests.Perf_Encoding.GetBytes()
       mov       [rsp+8],rcx
       mov       rax,[rcx+10]
       mov       rcx,rax
       mov       rdx,[rsp+8]
       mov       rdx,[rdx+18]
       mov       rax,[rax]
       mov       rax,[rax+58]
       jmp       qword ptr [rax+10]
; Total bytes of code 32

Compare Jit Disasm

; System.Text.Tests.Perf_Encoding.GetBytes()
       mov       [rsp+8],rcx
       mov       rax,[rcx+10]
       mov       rcx,rax
       mov       rdx,[rsp+8]
       mov       rdx,[rdx+18]
       mov       rax,[rax]
       mov       rax,[rax+58]
       jmp       qword ptr [rax+10]
; Total bytes of code 32

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Tests.Perf_Version

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Ctor2 - Duration of single invocation	4.55 ns	5.67 ns	1.25	0.20	False				Trace	Trace
Ctor3 - Duration of single invocation	4.71 ns	5.81 ns	1.23	0.22	False				Trace	Trace
Ctor4 - Duration of single invocation	5.02 ns	6.36 ns	1.27	0.17	False	58.815554863439864	69.75776892877016	1.1860428604428936	Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_Version*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Version.Ctor2

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 5.668523920861539 > 4.754215566975446.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -8.555843300217264 (T) = (0 -5.784108860185962) / Math.Sqrt((0.18689133019638365 / (17)) + (0.036155885379870294 / (40))) is less than -2.0040447832881556 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (17) + (40) - 2, .025) and -0.19238479107363873 = (4.850874401859718 - 5.784108860185962) / 4.850874401859718 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Tests.Perf_Version.Ctor2()
       push      rsi
       sub       rsp,20
       mov       rcx,offset MT_System.Version
       call      000000000000C390
       mov       rsi,rax
       mov       rcx,rsi
       mov       edx,1
       mov       r8d,2
       call      qword ptr [1030]
       mov       rax,rsi
       add       rsp,20
       pop       rsi
       ret
; Total bytes of code 52

; System.Version..ctor(Int32, Int32)
       push      rdi
       push      rsi
       sub       rsp,28
       test      edx,edx
       jl        short 000000000000F41B
       test      r8d,r8d
       jl        short 000000000000F478
       mov       [rcx+8],edx
       mov       [rcx+0C],r8d
       mov       dword ptr [rcx+10],0FFFFFFFF
       mov       dword ptr [rcx+14],0FFFFFFFF
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,13F04
       mov       rdx,7FFE96E24000
       call      00000000000014A0
       mov       rdi,rax
       mov       ecx,0A7B1
       mov       rdx,7FFE96E24000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [57E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000004690
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,13F10
       mov       rdx,7FFE96E24000
       call      00000000000014A0
       mov       rdi,rax
       mov       ecx,0A7B1
       mov       rdx,7FFE96E24000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [57E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000004690
       int       3
; Total bytes of code 230

Compare Jit Disasm

; System.Tests.Perf_Version.Ctor2()
       push      rsi
       sub       rsp,20
       mov       rcx,offset MT_System.Version
       call      0000000000002AE0
       mov       rsi,rax
       mov       rcx,rsi
       mov       edx,1
       mov       r8d,2
       call      qword ptr [1030]
       mov       rax,rsi
       add       rsp,20
       pop       rsi
       ret
; Total bytes of code 52

; System.Version..ctor(Int32, Int32)
       push      rdi
       push      rsi
       sub       rsp,28
       test      edx,edx
       jl        short 000000000000F41B
       test      r8d,r8d
       jl        short 000000000000F478
       mov       [rcx+8],edx
       mov       [rcx+0C],r8d
       mov       dword ptr [rcx+10],0FFFFFFFF
       mov       dword ptr [rcx+14],0FFFFFFFF
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      0000000000002AE0
       mov       rsi,rax
       mov       ecx,13F76
       mov       rdx,7FFED9154000
       call      000000000000A140
       mov       rdi,rax
       mov       ecx,0A7B1
       mov       rdx,7FFED9154000
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [57E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000002B00
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      0000000000002AE0
       mov       rsi,rax
       mov       ecx,13F82
       mov       rdx,7FFED9154000
       call      000000000000A140
       mov       rdi,rax
       mov       ecx,0A7B1
       mov       rdx,7FFED9154000
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [57E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000002B00
       int       3
; Total bytes of code 230

System.Tests.Perf_Version.Ctor3

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 5.807951337039416 > 4.951713843976096.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -24.37474551196403 (T) = (0 -5.948229923127497) / Math.Sqrt((0.006242402528577049 / (20)) + (0.07891965710663092 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.2436066095002034 = (4.783047852663028 - 5.948229923127497) / 4.783047852663028 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Tests.Perf_Version.Ctor3()
       push      rsi
       sub       rsp,20
       mov       rcx,offset MT_System.Version
       call      000000000000C390
       mov       rsi,rax
       mov       rcx,rsi
       mov       edx,1
       mov       r8d,2
       mov       r9d,3
       call      qword ptr [1018]
       mov       rax,rsi
       add       rsp,20
       pop       rsi
       ret
; Total bytes of code 58

; System.Version..ctor(Int32, Int32, Int32)
       push      rdi
       push      rsi
       sub       rsp,28
       test      edx,edx
       jl        short 000000000000F425
       test      r8d,r8d
       jl        near ptr 000000000000F482
       test      r9d,r9d
       jl        near ptr 000000000000F4DF
       mov       [rcx+8],edx
       mov       [rcx+0C],r8d
       mov       [rcx+10],r9d
       mov       dword ptr [rcx+14],0FFFFFFFF
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,13F04
       mov       rdx,7FF7F0AC4000
       call      00000000000014A0
       mov       rdi,rax
       mov       ecx,0A7B1
       mov       rdx,7FF7F0AC4000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [57E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000004690
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,13F10
       mov       rdx,7FF7F0AC4000
       call      00000000000014A0
       mov       rdi,rax
       mov       ecx,0A7B1
       mov       rdx,7FF7F0AC4000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [57E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000004690
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,13F1C
       mov       rdx,7FF7F0AC4000
       call      00000000000014A0
       mov       rdi,rax
       mov       ecx,0A7B1
       mov       rdx,7FF7F0AC4000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [57E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000004690
       int       3
; Total bytes of code 333

Compare Jit Disasm

; System.Tests.Perf_Version.Ctor3()
       push      rsi
       sub       rsp,20
       mov       rcx,offset MT_System.Version
       call      0000000000002AE0
       mov       rsi,rax
       mov       rcx,rsi
       mov       edx,1
       mov       r8d,2
       mov       r9d,3
       call      qword ptr [1018]
       mov       rax,rsi
       add       rsp,20
       pop       rsi
       ret
; Total bytes of code 58

; System.Version..ctor(Int32, Int32, Int32)
       push      rdi
       push      rsi
       sub       rsp,28
       test      edx,edx
       jl        short 000000000000F425
       test      r8d,r8d
       jl        near ptr 000000000000F482
       test      r9d,r9d
       jl        near ptr 000000000000F4DF
       mov       [rcx+8],edx
       mov       [rcx+0C],r8d
       mov       [rcx+10],r9d
       mov       dword ptr [rcx+14],0FFFFFFFF
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      0000000000002AE0
       mov       rsi,rax
       mov       ecx,13F76
       mov       rdx,7FFCD6424000
       call      000000000000A140
       mov       rdi,rax
       mov       ecx,0A7B1
       mov       rdx,7FFCD6424000
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [57E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000002B00
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      0000000000002AE0
       mov       rsi,rax
       mov       ecx,13F82
       mov       rdx,7FFCD6424000
       call      000000000000A140
       mov       rdi,rax
       mov       ecx,0A7B1
       mov       rdx,7FFCD6424000
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [57E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000002B00
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      0000000000002AE0
       mov       rsi,rax
       mov       ecx,13F8E
       mov       rdx,7FFCD6424000
       call      000000000000A140
       mov       rdi,rax
       mov       ecx,0A7B1
       mov       rdx,7FFCD6424000
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [57E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000002B00
       int       3
; Total bytes of code 333

System.Tests.Perf_Version.Ctor4

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 6.3560675495200645 > 5.186516316509947.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -33.54862603331765 (T) = (0 -6.471727356758629) / Math.Sqrt((0.03365866298303315 / (20)) + (0.03345017875923697 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.351692039612352 = (4.787871177087525 - 6.471727356758629) / 4.787871177087525 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Tests.Perf_Version.Ctor4()
       push      rsi
       sub       rsp,30
       mov       rcx,offset MT_System.Version
       call      000000000000C390
       mov       rsi,rax
       mov       dword ptr [rsp+20],4
       mov       rcx,rsi
       mov       edx,1
       mov       r8d,2
       mov       r9d,3
       call      qword ptr [1000]
       mov       rax,rsi
       add       rsp,30
       pop       rsi
       ret
; Total bytes of code 66

; System.Version..ctor(Int32, Int32, Int32, Int32)
       push      rdi
       push      rsi
       sub       rsp,28
       mov       eax,[rsp+60]
       test      edx,edx
       jl        short 000000000000F44D
       test      r8d,r8d
       jl        near ptr 000000000000F4AA
       test      r9d,r9d
       jl        near ptr 000000000000F507
       test      eax,eax
       jl        near ptr 000000000000F564
       mov       [rcx+8],edx
       mov       [rcx+0C],r8d
       mov       [rcx+10],r9d
       mov       [rcx+14],eax
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,13F04
       mov       rdx,7FFB18D54000
       call      00000000000014A0
       mov       rdi,rax
       mov       ecx,0A7B1
       mov       rdx,7FFB18D54000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [57E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000004690
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,13F10
       mov       rdx,7FFB18D54000
       call      00000000000014A0
       mov       rdi,rax
       mov       ecx,0A7B1
       mov       rdx,7FFB18D54000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [57E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000004690
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,13F1C
       mov       rdx,7FFB18D54000
       call      00000000000014A0
       mov       rdi,rax
       mov       ecx,0A7B1
       mov       rdx,7FFB18D54000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [57E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000004690
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,13F28
       mov       rdx,7FFB18D54000
       call      00000000000014A0
       mov       rdi,rax
       mov       ecx,0A7B1
       mov       rdx,7FFB18D54000
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [57E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000004690
       int       3
; Total bytes of code 434

Compare Jit Disasm

; System.Tests.Perf_Version.Ctor4()
       push      rsi
       sub       rsp,30
       mov       rcx,offset MT_System.Version
       call      0000000000002AE0
       mov       rsi,rax
       mov       dword ptr [rsp+20],4
       mov       rcx,rsi
       mov       edx,1
       mov       r8d,2
       mov       r9d,3
       call      qword ptr [1000]
       mov       rax,rsi
       add       rsp,30
       pop       rsi
       ret
; Total bytes of code 66

; System.Version..ctor(Int32, Int32, Int32, Int32)
       push      rdi
       push      rsi
       sub       rsp,28
       mov       eax,[rsp+60]
       test      edx,edx
       jl        short 000000000000F44D
       test      r8d,r8d
       jl        near ptr 000000000000F4AA
       test      r9d,r9d
       jl        near ptr 000000000000F507
       test      eax,eax
       jl        near ptr 000000000000F564
       mov       [rcx+8],edx
       mov       [rcx+0C],r8d
       mov       [rcx+10],r9d
       mov       [rcx+14],eax
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      0000000000002AE0
       mov       rsi,rax
       mov       ecx,13F76
       mov       rdx,7FFB57614000
       call      000000000000A140
       mov       rdi,rax
       mov       ecx,0A7B1
       mov       rdx,7FFB57614000
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [57E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000002B00
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      0000000000002AE0
       mov       rsi,rax
       mov       ecx,13F82
       mov       rdx,7FFB57614000
       call      000000000000A140
       mov       rdi,rax
       mov       ecx,0A7B1
       mov       rdx,7FFB57614000
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [57E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000002B00
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      0000000000002AE0
       mov       rsi,rax
       mov       ecx,13F8E
       mov       rdx,7FFB57614000
       call      000000000000A140
       mov       rdi,rax
       mov       ecx,0A7B1
       mov       rdx,7FFB57614000
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [57E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000002B00
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      0000000000002AE0
       mov       rsi,rax
       mov       ecx,13F9A
       mov       rdx,7FFB57614000
       call      000000000000A140
       mov       rdi,rax
       mov       ecx,0A7B1
       mov       rdx,7FFB57614000
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [57E0]
       mov       r8,rax
       mov       rdx,rdi
       mov       rcx,rsi
       call      qword ptr [1828]
       mov       rcx,rsi
       call      0000000000002B00
       int       3
; Total bytes of code 434

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

[performanceautofiler]

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Collections.Tests.Perf_BitArray

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
BitArrayLengthValueCtor - Duration of single invocation	15.33 ns	17.57 ns	1.15	0.19	False	148.149002092652	156.493856692507	1.0563274438705712	Trace	Trace
BitArrayBitArrayCtor - Duration of single invocation	17.48 ns	18.75 ns	1.07	0.16	False	189.69209075376958	198.59977935139574	1.0469586716147739	Trace	Trace
BitArrayNot - Duration of single invocation	1.37 ns	2.88 ns	2.10	0.12	False	31.734320683661647	34.239483846592584	1.0789417611268015	Trace	Trace
BitArrayBitArrayCtor - Duration of single invocation	15.25 ns	16.79 ns	1.10	0.19	False	171.06606704468922	178.02538407466784	1.0406820426178418	Trace	Trace
BitArrayLengthCtor - Duration of single invocation	13.03 ns	14.08 ns	1.08	0.21	False	121.17801130377475	126.2609841637296	1.0419463300747906	Trace	Trace
BitArrayBoolArrayCtor - Duration of single invocation	14.32 ns	17.14 ns	1.20	0.08	False				Trace	Trace
BitArrayIntArrayCtor - Duration of single invocation	15.17 ns	16.70 ns	1.10	0.21	False				Trace	Trace
BitArrayLengthCtor - Duration of single invocation	9.70 ns	11.83 ns	1.22	0.22	False	108.2707233882555	114.5499335190146	1.057995457444595	Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.Tests.Perf_BitArray*'

Payloads

Baseline
Compare

Histogram

System.Collections.Tests.Perf_BitArray.BitArrayLengthValueCtor(Size: 4)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 17.57309846889641 > 16.140541700787477.
IsChangePoint: Marked as a change because one of 7/2/2022 7:35:06 PM, 7/6/2022 3:55:24 AM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -6.447192989841848 (T) = (0 -16.772019925781642) / Math.Sqrt((0.7478205756903464 / (20)) + (0.21638991435974575 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.08639722061444668 = (15.438202167247528 - 16.772019925781642) / 15.438202167247528 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Collections.Tests.Perf_BitArray.BitArrayLengthValueCtor()
       push      rdi
       push      rsi
       sub       rsp,28
       mov       rsi,rcx
       mov       rcx,offset MT_System.Collections.BitArray
       call      000000000000C390
       mov       rdi,rax
       mov       edx,[rsi+30]
       mov       rcx,rdi
       mov       r8d,1
       call      qword ptr [1018]
       mov       rax,rdi
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 55

; System.Collections.BitArray..ctor(Int32, Boolean)
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       mov       rsi,rcx
       mov       edi,edx
       mov       ebx,r8d
       test      edi,edi
       jl        short 0000000000000243
       lea       edx,[rdi+1F]
       shr       edx,5
       movsxd    rdx,edx
       mov       rcx,offset MT_System.Int32[]
       call      000000000000C4B0
       lea       rcx,[rsi+8]
       mov       rdx,rax
       call      0000000000000010
       mov       [rsi+10],edi
       test      bl,bl
       je        short 0000000000000236
       mov       rcx,[rsi+8]
       mov       edx,0FFFFFFFF
       call      qword ptr [37E0]
       and       edi,1F
       jle       short 0000000000000236
       mov       rcx,[rsi+8]
       mov       eax,[rcx+8]
       lea       edx,[rax+0FFFF]
       cmp       edx,eax
       jae       near ptr 00000000000002B9
       mov       eax,edx
       mov       edx,1
       shlx      edx,edx,edi
       dec       edx
       mov       [rcx+rax*4+10],edx
       xor       ecx,ecx
       mov       [rsi+14],ecx
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       rcx,offset MT_System.Int32
       call      000000000000C390
       mov       rsi,rax
       mov       [rsi+8],edi
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rdi,rax
       mov       ecx,7AD
       mov       rdx,7FFA0171E098
       call      00000000000014A0
       mov       rbx,rax
       mov       ecx,81
       mov       rdx,7FFA0171E098
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [3810]
       mov       r9,rax
       mov       rdx,rbx
       mov       r8,rsi
       mov       rcx,rdi
       call      qword ptr [1858]
       mov       rcx,rdi
       call      0000000000004690
       int       3
       call      0000000000006930
       int       3
; Total bytes of code 255

Compare Jit Disasm

; System.Collections.Tests.Perf_BitArray.BitArrayLengthValueCtor()
       push      rdi
       push      rsi
       sub       rsp,28
       mov       rsi,rcx
       mov       rcx,offset MT_System.Collections.BitArray
       call      0000000000002AE0
       mov       rdi,rax
       mov       edx,[rsi+30]
       mov       rcx,rdi
       mov       r8d,1
       call      qword ptr [1018]
       mov       rax,rdi
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 55

; System.Collections.BitArray..ctor(Int32, Boolean)
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       mov       rsi,rcx
       mov       edi,edx
       mov       ebx,r8d
       test      edi,edi
       jl        short 0000000000000243
       lea       edx,[rdi+1F]
       shr       edx,5
       movsxd    rdx,edx
       mov       rcx,offset MT_System.Int32[]
       call      0000000000002C00
       lea       rcx,[rsi+8]
       mov       rdx,rax
       call      0000000000000010
       mov       [rsi+10],edi
       test      bl,bl
       je        short 0000000000000236
       mov       rcx,[rsi+8]
       mov       edx,0FFFFFFFF
       call      qword ptr [37E0]
       and       edi,1F
       jle       short 0000000000000236
       mov       rcx,[rsi+8]
       mov       eax,[rcx+8]
       lea       edx,[rax+0FFFF]
       cmp       edx,eax
       jae       near ptr 00000000000002B9
       mov       eax,edx
       mov       edx,1
       shlx      edx,edx,edi
       dec       edx
       mov       [rcx+rax*4+10],edx
       xor       ecx,ecx
       mov       [rsi+14],ecx
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       rcx,offset MT_System.Int32
       call      0000000000002AE0
       mov       rsi,rax
       mov       [rsi+8],edi
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      0000000000002AE0
       mov       rdi,rax
       mov       ecx,7AD
       mov       rdx,7FFE9735E1E0
       call      000000000000A140
       mov       rbx,rax
       mov       ecx,81
       mov       rdx,7FFE9735E1E0
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [3810]
       mov       r9,rax
       mov       rdx,rbx
       mov       r8,rsi
       mov       rcx,rdi
       call      qword ptr [1858]
       mov       rcx,rdi
       call      0000000000002B00
       int       3
       call      000000000000AB50
       int       3
; Total bytes of code 255

System.Collections.Tests.Perf_BitArray.BitArrayBitArrayCtor(Size: 512)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 18.75145325273014 > 18.1465408235375.
IsChangePoint: Marked as a change because one of 6/27/2022 8:54:23 AM, 6/30/2022 12:21:07 PM, 8/9/2022 4:14:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -8.076647579513224 (T) = (0 -19.264130742213247) / Math.Sqrt((0.5279903859962829 / (21)) + (0.3088392158733344 / (39))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (21) + (39) - 2, .025) and -0.08252385485839356 = (17.79557157632634 - 19.264130742213247) / 17.79557157632634 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Collections.Tests.Perf_BitArray.BitArrayBitArrayCtor()
       push      rdi
       push      rsi
       sub       rsp,28
       mov       rsi,rcx
       mov       rcx,offset MT_System.Collections.BitArray
       call      000000000000C390
       mov       rdi,rax
       mov       rdx,[rsi+8]
       mov       rcx,rdi
       call      qword ptr [1078]
       mov       rax,rdi
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 50

; System.Collections.BitArray..ctor(System.Collections.BitArray)
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       mov       rdi,rcx
       mov       rsi,rdx
       test      rsi,rsi
       je        short 000000000000019E
       mov       ebx,[rsi+10]
       add       ebx,1F
       shr       ebx,5
       movsxd    rdx,ebx
       mov       rcx,offset MT_System.Int32[]
       call      000000000000C4B0
       lea       rcx,[rdi+8]
       mov       rdx,rax
       call      0000000000000010
       mov       rcx,[rsi+8]
       mov       rdx,[rdi+8]
       mov       r8d,ebx
       call      qword ptr [9018]
       mov       ecx,[rsi+10]
       mov       [rdi+10],ecx
       mov       ecx,[rsi+14]
       mov       [rdi+14],ecx
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       ecx,7D5
       mov       rdx,7FF95FE7E098
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [33F0]
       int       3
; Total bytes of code 124

Compare Jit Disasm

; System.Collections.Tests.Perf_BitArray.BitArrayBitArrayCtor()
       push      rdi
       push      rsi
       sub       rsp,28
       mov       rsi,rcx
       mov       rcx,offset MT_System.Collections.BitArray
       call      0000000000002AE0
       mov       rdi,rax
       mov       rdx,[rsi+8]
       mov       rcx,rdi
       call      qword ptr [1078]
       mov       rax,rdi
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 50

; System.Collections.BitArray..ctor(System.Collections.BitArray)
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       mov       rdi,rcx
       mov       rsi,rdx
       test      rsi,rsi
       je        short 000000000000019E
       mov       ebx,[rsi+10]
       add       ebx,1F
       shr       ebx,5
       movsxd    rdx,ebx
       mov       rcx,offset MT_System.Int32[]
       call      0000000000002C00
       lea       rcx,[rdi+8]
       mov       rdx,rax
       call      0000000000000010
       mov       rcx,[rsi+8]
       mov       rdx,[rdi+8]
       mov       r8d,ebx
       call      qword ptr [9018]
       mov       ecx,[rsi+10]
       mov       [rdi+10],ecx
       mov       ecx,[rsi+14]
       mov       [rdi+14],ecx
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       ecx,7D5
       mov       rdx,7FFB26CCE1E0
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [33F0]
       int       3
; Total bytes of code 124

System.Collections.Tests.Perf_BitArray.BitArrayNot(Size: 4)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 2.8767562585743582 > 1.440248896419278.
IsChangePoint: Marked as a change because one of 6/17/2022 12:17:51 PM, 7/7/2022 7:02:29 PM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -40.17095594543638 (T) = (0 -2.868288625239743) / Math.Sqrt((0.04517590577993649 / (20)) + (8.706959065728199E-05 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -1.993499084388648 = (0.9581725413574074 - 2.868288625239743) / 0.9581725413574074 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Collections.Tests.Perf_BitArray.BitArrayNot()
       mov       rcx,[rcx+8]
       cmp       [rcx],ecx
       jmp       qword ptr [1150]
; Total bytes of code 12

; System.Collections.BitArray.Not()
       sub       rsp,28
       vzeroupper
       mov       rax,[rcx+8]
       mov       edx,[rcx+10]
       add       edx,1F
       shr       edx,5
       cmp       edx,7
       ja        near ptr 000000000000FDCE
       mov       edx,edx
       lea       r8,[0FE78]
       mov       r8d,[r8+rdx*4]
       lea       r9,[0FCE7]
       add       r8,r9
       jmp       r8
       mov       r9d,[rax+8]
       cmp       r9d,6
       jbe       near ptr 000000000000FE6F
       mov       r9d,[rax+28]
       mov       edx,r9d
       not       edx
       mov       [rax+28],edx
       mov       r9d,[rax+8]
       cmp       r9d,5
       jbe       near ptr 000000000000FE6F
       mov       r9d,[rax+24]
       mov       edx,r9d
       not       edx
       mov       [rax+24],edx
       mov       r9d,[rax+8]
       cmp       r9d,4
       jbe       near ptr 000000000000FE6F
       mov       r9d,[rax+20]
       mov       edx,r9d
       not       edx
       mov       [rax+20],edx
       mov       r9d,[rax+8]
       cmp       r9d,3
       jbe       near ptr 000000000000FE6F
       mov       r9d,[rax+1C]
       mov       edx,r9d
       not       edx
       mov       [rax+1C],edx
       mov       r9d,[rax+8]
       cmp       r9d,2
       jbe       near ptr 000000000000FE6F
       mov       r9d,[rax+18]
       mov       edx,r9d
       not       edx
       mov       [rax+18],edx
       mov       r9d,[rax+8]
       cmp       r9d,1
       jbe       near ptr 000000000000FE6F
       mov       r9d,[rax+14]
       mov       edx,r9d
       not       edx
       mov       [rax+14],edx
       mov       r9d,[rax+8]
       test      r9d,r9d
       je        near ptr 000000000000FE6F
       mov       edx,[rax+10]
       not       edx
       mov       [rax+10],edx
       jmp       near ptr 000000000000FE61
       nop
       xor       r8d,r8d
       cmp       [rax],al
       lea       r9,[rax+10]
       lea       r10d,[rdx+0FFF9]
       test      r10d,r10d
       jbe       short 000000000000FDFD
       mov       r11d,r8d
       vpcmpeqd  ymm0,ymm0,ymm0
       vpxor     ymm0,ymm0,[r9+r11*4]
       vmovdqu   ymmword ptr [r9+r11*4],ymm0
       add       r8d,8
       cmp       r8d,r10d
       jb        short 000000000000FDE0
       cmp       r8d,edx
       jae       short 000000000000FE61
       test      r8d,r8d
       jl        short 000000000000FE3A
       test      edx,edx
       jl        short 000000000000FE3A
       mov       r9d,[rax+8]
       cmp       r9d,edx
       jl        short 000000000000FE3A
       nop       dword ptr [rax]
       nop       dword ptr [rax+rax]
       mov       r9d,r8d
       mov       r10d,[rax+r9*4+10]
       not       r10d
       mov       [rax+r9*4+10],r10d
       inc       r8d
       cmp       r8d,edx
       jb        short 000000000000FE20
       jmp       short 000000000000FE61
       mov       r9d,[rax+8]
       cmp       r8d,r9d
       jae       short 000000000000FE6F
       mov       r10d,r8d
       mov       r9d,[rax+r10*4+10]
       mov       r10d,r9d
       not       r10d
       mov       r9d,r8d
       mov       [rax+r9*4+10],r10d
       inc       r8d
       cmp       r8d,edx
       jb        short 000000000000FE3A
       inc       dword ptr [rcx+14]
       mov       rax,rcx
       vzeroupper
       add       rsp,28
       ret
       call      0000000000006930
       int       3
; Total bytes of code 405

Compare Jit Disasm

; System.Collections.Tests.Perf_BitArray.BitArrayNot()
       mov       rcx,[rcx+8]
       cmp       [rcx],ecx
       jmp       qword ptr [1150]
; Total bytes of code 12

; System.Collections.BitArray.Not()
       sub       rsp,28
       vzeroupper
       mov       rax,[rcx+8]
       mov       edx,[rcx+10]
       add       edx,1F
       shr       edx,5
       cmp       edx,7
       ja        near ptr 000000000000FDCE
       mov       edx,edx
       lea       r8,[0FE78]
       mov       r8d,[r8+rdx*4]
       lea       r9,[0FCE7]
       add       r8,r9
       jmp       r8
       mov       r9d,[rax+8]
       cmp       r9d,6
       jbe       near ptr 000000000000FE6F
       mov       r9d,[rax+28]
       mov       edx,r9d
       not       edx
       mov       [rax+28],edx
       mov       r9d,[rax+8]
       cmp       r9d,5
       jbe       near ptr 000000000000FE6F
       mov       r9d,[rax+24]
       mov       edx,r9d
       not       edx
       mov       [rax+24],edx
       mov       r9d,[rax+8]
       cmp       r9d,4
       jbe       near ptr 000000000000FE6F
       mov       r9d,[rax+20]
       mov       edx,r9d
       not       edx
       mov       [rax+20],edx
       mov       r9d,[rax+8]
       cmp       r9d,3
       jbe       near ptr 000000000000FE6F
       mov       r9d,[rax+1C]
       mov       edx,r9d
       not       edx
       mov       [rax+1C],edx
       mov       r9d,[rax+8]
       cmp       r9d,2
       jbe       near ptr 000000000000FE6F
       mov       r9d,[rax+18]
       mov       edx,r9d
       not       edx
       mov       [rax+18],edx
       mov       r9d,[rax+8]
       cmp       r9d,1
       jbe       near ptr 000000000000FE6F
       mov       r9d,[rax+14]
       mov       edx,r9d
       not       edx
       mov       [rax+14],edx
       mov       r9d,[rax+8]
       test      r9d,r9d
       je        near ptr 000000000000FE6F
       mov       edx,[rax+10]
       not       edx
       mov       [rax+10],edx
       jmp       near ptr 000000000000FE61
       nop
       xor       r8d,r8d
       cmp       [rax],al
       lea       r9,[rax+10]
       lea       r10d,[rdx+0FFF9]
       test      r10d,r10d
       jbe       short 000000000000FDFD
       mov       r11d,r8d
       vpcmpeqd  ymm0,ymm0,ymm0
       vpxor     ymm0,ymm0,[r9+r11*4]
       vmovdqu   ymmword ptr [r9+r11*4],ymm0
       add       r8d,8
       cmp       r8d,r10d
       jb        short 000000000000FDE0
       cmp       r8d,edx
       jae       short 000000000000FE61
       test      r8d,r8d
       jl        short 000000000000FE3A
       test      edx,edx
       jl        short 000000000000FE3A
       mov       r9d,[rax+8]
       cmp       r9d,edx
       jl        short 000000000000FE3A
       nop       dword ptr [rax]
       nop       dword ptr [rax+rax]
       mov       r9d,r8d
       mov       r10d,[rax+r9*4+10]
       not       r10d
       mov       [rax+r9*4+10],r10d
       inc       r8d
       cmp       r8d,edx
       jb        short 000000000000FE20
       jmp       short 000000000000FE61
       mov       r9d,[rax+8]
       cmp       r8d,r9d
       jae       short 000000000000FE6F
       mov       r10d,r8d
       mov       r9d,[rax+r10*4+10]
       mov       r10d,r9d
       not       r10d
       mov       r9d,r8d
       mov       [rax+r9*4+10],r10d
       inc       r8d
       cmp       r8d,edx
       jb        short 000000000000FE3A
       inc       dword ptr [rcx+14]
       mov       rax,rcx
       vzeroupper
       add       rsp,28
       ret
       call      000000000000AB50
       int       3
; Total bytes of code 405

System.Collections.Tests.Perf_BitArray.BitArrayBitArrayCtor(Size: 4)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 16.793611079256916 > 15.655302260194889.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -9.80424344045147 (T) = (0 -17.004390758815124) / Math.Sqrt((0.3831676007026498 / (20)) + (0.09183896767757523 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.0922422076128022 = (15.568333324144115 - 17.004390758815124) / 15.568333324144115 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Collections.Tests.Perf_BitArray.BitArrayBitArrayCtor()
       push      rdi
       push      rsi
       sub       rsp,28
       mov       rsi,rcx
       mov       rcx,offset MT_System.Collections.BitArray
       call      000000000000C390
       mov       rdi,rax
       mov       rdx,[rsi+8]
       mov       rcx,rdi
       call      qword ptr [1078]
       mov       rax,rdi
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 50

; System.Collections.BitArray..ctor(System.Collections.BitArray)
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       mov       rdi,rcx
       mov       rsi,rdx
       test      rsi,rsi
       je        short 000000000000015E
       mov       ebx,[rsi+10]
       add       ebx,1F
       shr       ebx,5
       movsxd    rdx,ebx
       mov       rcx,offset MT_System.Int32[]
       call      000000000000C4B0
       lea       rcx,[rdi+8]
       mov       rdx,rax
       call      0000000000000010
       mov       rcx,[rsi+8]
       mov       rdx,[rdi+8]
       mov       r8d,ebx
       call      qword ptr [9018]
       mov       ecx,[rsi+10]
       mov       [rdi+10],ecx
       mov       ecx,[rsi+14]
       mov       [rdi+14],ecx
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       ecx,7D5
       mov       rdx,7FF95FEFE098
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [33F0]
       int       3
; Total bytes of code 124

Compare Jit Disasm

; System.Collections.Tests.Perf_BitArray.BitArrayBitArrayCtor()
       push      rdi
       push      rsi
       sub       rsp,28
       mov       rsi,rcx
       mov       rcx,offset MT_System.Collections.BitArray
       call      0000000000002AE0
       mov       rdi,rax
       mov       rdx,[rsi+8]
       mov       rcx,rdi
       call      qword ptr [1078]
       mov       rax,rdi
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 50

; System.Collections.BitArray..ctor(System.Collections.BitArray)
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       mov       rdi,rcx
       mov       rsi,rdx
       test      rsi,rsi
       je        short 000000000000015E
       mov       ebx,[rsi+10]
       add       ebx,1F
       shr       ebx,5
       movsxd    rdx,ebx
       mov       rcx,offset MT_System.Int32[]
       call      0000000000002C00
       lea       rcx,[rdi+8]
       mov       rdx,rax
       call      0000000000000010
       mov       rcx,[rsi+8]
       mov       rdx,[rdi+8]
       mov       r8d,ebx
       call      qword ptr [9018]
       mov       ecx,[rsi+10]
       mov       [rdi+10],ecx
       mov       ecx,[rsi+14]
       mov       [rdi+14],ecx
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       ecx,7D5
       mov       rdx,7FFB26D1E1E0
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [33F0]
       int       3
; Total bytes of code 124

System.Collections.Tests.Perf_BitArray.BitArrayLengthCtor(Size: 512)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 14.081876676978128 > 12.998322547001663.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -7.549406628972143 (T) = (0 -14.100006892644057) / Math.Sqrt((0.5171242683128981 / (20)) + (0.31967497034033077 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.10926913102621565 = (12.711078401325159 - 14.100006892644057) / 12.711078401325159 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Collections.Tests.Perf_BitArray.BitArrayLengthCtor()
       push      rdi
       push      rsi
       sub       rsp,28
       mov       rsi,rcx
       mov       rcx,offset MT_System.Collections.BitArray
       call      000000000000C390
       mov       rdi,rax
       mov       edx,[rsi+30]
       mov       rcx,rdi
       xor       r8d,r8d
       call      qword ptr [1018]
       mov       rax,rdi
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 52

; System.Collections.BitArray..ctor(Int32, Boolean)
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       mov       rsi,rcx
       mov       edi,edx
       mov       ebx,r8d
       test      edi,edi
       jl        short 000000000000F683
       lea       edx,[rdi+1F]
       shr       edx,5
       movsxd    rdx,edx
       mov       rcx,offset MT_System.Int32[]
       call      000000000000C4B0
       lea       rcx,[rsi+8]
       mov       rdx,rax
       call      0000000000000010
       mov       [rsi+10],edi
       test      bl,bl
       je        short 000000000000F676
       mov       rcx,[rsi+8]
       mov       edx,0FFFFFFFF
       call      qword ptr [37E0]
       and       edi,1F
       jle       short 000000000000F676
       mov       rcx,[rsi+8]
       mov       eax,[rcx+8]
       lea       edx,[rax+0FFFF]
       cmp       edx,eax
       jae       near ptr 000000000000F6F9
       mov       eax,edx
       mov       edx,1
       shlx      edx,edx,edi
       dec       edx
       mov       [rcx+rax*4+10],edx
       xor       ecx,ecx
       mov       [rsi+14],ecx
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       rcx,offset MT_System.Int32
       call      000000000000C390
       mov       rsi,rax
       mov       [rsi+8],edi
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rdi,rax
       mov       ecx,7AD
       mov       rdx,7FFB3B6BE098
       call      00000000000014A0
       mov       rbx,rax
       mov       ecx,81
       mov       rdx,7FFB3B6BE098
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [3810]
       mov       r9,rax
       mov       rdx,rbx
       mov       r8,rsi
       mov       rcx,rdi
       call      qword ptr [1858]
       mov       rcx,rdi
       call      0000000000004690
       int       3
       call      0000000000006930
       int       3
; Total bytes of code 255

Compare Jit Disasm

; System.Collections.Tests.Perf_BitArray.BitArrayLengthCtor()
       push      rdi
       push      rsi
       sub       rsp,28
       mov       rsi,rcx
       mov       rcx,offset MT_System.Collections.BitArray
       call      0000000000002AE0
       mov       rdi,rax
       mov       edx,[rsi+30]
       mov       rcx,rdi
       xor       r8d,r8d
       call      qword ptr [1018]
       mov       rax,rdi
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 52

; System.Collections.BitArray..ctor(Int32, Boolean)
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       mov       rsi,rcx
       mov       edi,edx
       mov       ebx,r8d
       test      edi,edi
       jl        short 000000000000F683
       lea       edx,[rdi+1F]
       shr       edx,5
       movsxd    rdx,edx
       mov       rcx,offset MT_System.Int32[]
       call      0000000000002C00
       lea       rcx,[rsi+8]
       mov       rdx,rax
       call      0000000000000010
       mov       [rsi+10],edi
       test      bl,bl
       je        short 000000000000F676
       mov       rcx,[rsi+8]
       mov       edx,0FFFFFFFF
       call      qword ptr [37E0]
       and       edi,1F
       jle       short 000000000000F676
       mov       rcx,[rsi+8]
       mov       eax,[rcx+8]
       lea       edx,[rax+0FFFF]
       cmp       edx,eax
       jae       near ptr 000000000000F6F9
       mov       eax,edx
       mov       edx,1
       shlx      edx,edx,edi
       dec       edx
       mov       [rcx+rax*4+10],edx
       xor       ecx,ecx
       mov       [rsi+14],ecx
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       rcx,offset MT_System.Int32
       call      0000000000002AE0
       mov       rsi,rax
       mov       [rsi+8],edi
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      0000000000002AE0
       mov       rdi,rax
       mov       ecx,7AD
       mov       rdx,7FF929CBE1E0
       call      000000000000A140
       mov       rbx,rax
       mov       ecx,81
       mov       rdx,7FF929CBE1E0
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [3810]
       mov       r9,rax
       mov       rdx,rbx
       mov       r8,rsi
       mov       rcx,rdi
       call      qword ptr [1858]
       mov       rcx,rdi
       call      0000000000002B00
       int       3
       call      000000000000AB50
       int       3
; Total bytes of code 255

System.Collections.Tests.Perf_BitArray.BitArrayBoolArrayCtor(Size: 4)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 17.138351472606416 > 15.01697427195414.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -21.356386446044016 (T) = (0 -17.08619076673289) / Math.Sqrt((0.12408392794273947 / (20)) + (0.16502105476883797 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.14552262654659726 = (14.915629225275598 - 17.08619076673289) / 14.915629225275598 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Collections.Tests.Perf_BitArray.BitArrayBoolArrayCtor()
       push      rdi
       push      rsi
       sub       rsp,28
       mov       rsi,rcx
       mov       rcx,offset MT_System.Collections.BitArray
       call      000000000000C390
       mov       rdi,rax
       mov       rdx,[rsi+20]
       mov       rcx,rdi
       call      qword ptr [1048]
       mov       rax,rdi
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 50

; System.Collections.BitArray..ctor(Boolean[])
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       vzeroupper
       mov       rsi,rcx
       mov       rdi,rdx
       test      rdi,rdi
       je        near ptr 0000000000000488
       mov       ebx,[rdi+8]
       mov       edx,ebx
       add       edx,1F
       shr       edx,5
       movsxd    rdx,edx
       mov       rcx,offset MT_System.Int32[]
       call      000000000000C4B0
       lea       rcx,[rsi+8]
       mov       rdx,rax
       call      0000000000000010
       mov       [rsi+10],ebx
       xor       ecx,ecx
       cmp       ebx,20
       jl        short 00000000000003F0
       lea       rdx,[rdi+10]
       cmp       ebx,20
       jb        short 00000000000003F0
       mov       eax,ecx
       vxorps    ymm0,ymm0,ymm0
       vpcmpeqb  ymm0,ymm0,[rdx+rax]
       vpmovmskb eax,ymm0
       mov       r8,[rsi+8]
       mov       r9d,ecx
       shr       r9d,5
       cmp       r9d,[r8+8]
       jae       near ptr 00000000000004A6
       mov       r9d,r9d
       not       eax
       mov       [r8+r9*4+10],eax
       add       ecx,20
       lea       eax,[rcx+20]
       cmp       ebx,eax
       jae       short 00000000000003B5
       cmp       ebx,ecx
       jbe       near ptr 0000000000000478
       test      ecx,ecx
       jl        short 000000000000043D
       nop       dword ptr [rax]
       mov       edx,ecx
       cmp       byte ptr [rdi+rdx+10],0
       je        short 0000000000000435
       mov       edx,ecx
       shr       edx,5
       mov       eax,ecx
       and       eax,1F
       mov       r8,[rsi+8]
       cmp       edx,[r8+8]
       jae       near ptr 00000000000004A6
       mov       edx,edx
       lea       rdx,[r8+rdx*4+10]
       mov       r8d,1
       shlx      eax,r8d,eax
       or        [rdx],eax
       inc       ecx
       cmp       ebx,ecx
       ja        short 0000000000000400
       jmp       short 0000000000000478
       cmp       ecx,ebx
       jae       short 00000000000004A6
       mov       edx,ecx
       cmp       byte ptr [rdi+rdx+10],0
       je        short 0000000000000472
       mov       edx,ecx
       shr       edx,5
       mov       eax,ecx
       and       eax,1F
       mov       r8,[rsi+8]
       cmp       edx,[r8+8]
       jae       short 00000000000004A6
       mov       edx,edx
       lea       rdx,[r8+rdx*4+10]
       mov       r8d,1
       shlx      eax,r8d,eax
       or        [rdx],eax
       inc       ecx
       cmp       ebx,ecx
       ja        short 000000000000043D
       xor       ecx,ecx
       mov       [rsi+14],ecx
       vzeroupper
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       ecx,7C7
       mov       rdx,7FFDC689E098
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [33F0]
       int       3
       call      0000000000006930
       int       3
; Total bytes of code 332

Compare Jit Disasm

; System.Collections.Tests.Perf_BitArray.BitArrayBoolArrayCtor()
       push      rdi
       push      rsi
       sub       rsp,28
       mov       rsi,rcx
       mov       rcx,offset MT_System.Collections.BitArray
       call      0000000000002AE0
       mov       rdi,rax
       mov       rdx,[rsi+20]
       mov       rcx,rdi
       call      qword ptr [1048]
       mov       rax,rdi
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 50

; System.Collections.BitArray..ctor(Boolean[])
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       vzeroupper
       mov       rsi,rcx
       mov       rdi,rdx
       test      rdi,rdi
       je        near ptr 00000000000006E8
       mov       ebx,[rdi+8]
       mov       edx,ebx
       add       edx,1F
       shr       edx,5
       movsxd    rdx,edx
       mov       rcx,offset MT_System.Int32[]
       call      0000000000002C00
       lea       rcx,[rsi+8]
       mov       rdx,rax
       call      0000000000000010
       mov       [rsi+10],ebx
       xor       ecx,ecx
       cmp       ebx,20
       jl        short 0000000000000650
       lea       rdx,[rdi+10]
       cmp       ebx,20
       jb        short 0000000000000650
       mov       eax,ecx
       vxorps    ymm0,ymm0,ymm0
       vpcmpeqb  ymm0,ymm0,[rdx+rax]
       vpmovmskb eax,ymm0
       mov       r8,[rsi+8]
       mov       r9d,ecx
       shr       r9d,5
       cmp       r9d,[r8+8]
       jae       near ptr 0000000000000706
       mov       r9d,r9d
       not       eax
       mov       [r8+r9*4+10],eax
       add       ecx,20
       lea       eax,[rcx+20]
       cmp       ebx,eax
       jae       short 0000000000000615
       cmp       ebx,ecx
       jbe       near ptr 00000000000006D8
       test      ecx,ecx
       jl        short 000000000000069D
       nop       dword ptr [rax]
       mov       edx,ecx
       cmp       byte ptr [rdi+rdx+10],0
       je        short 0000000000000695
       mov       edx,ecx
       shr       edx,5
       mov       eax,ecx
       and       eax,1F
       mov       r8,[rsi+8]
       cmp       edx,[r8+8]
       jae       near ptr 0000000000000706
       mov       edx,edx
       lea       rdx,[r8+rdx*4+10]
       mov       r8d,1
       shlx      eax,r8d,eax
       or        [rdx],eax
       inc       ecx
       cmp       ebx,ecx
       ja        short 0000000000000660
       jmp       short 00000000000006D8
       cmp       ecx,ebx
       jae       short 0000000000000706
       mov       edx,ecx
       cmp       byte ptr [rdi+rdx+10],0
       je        short 00000000000006D2
       mov       edx,ecx
       shr       edx,5
       mov       eax,ecx
       and       eax,1F
       mov       r8,[rsi+8]
       cmp       edx,[r8+8]
       jae       short 0000000000000706
       mov       edx,edx
       lea       rdx,[r8+rdx*4+10]
       mov       r8d,1
       shlx      eax,r8d,eax
       or        [rdx],eax
       inc       ecx
       cmp       ebx,ecx
       ja        short 000000000000069D
       xor       ecx,ecx
       mov       [rsi+14],ecx
       vzeroupper
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       ecx,7C7
       mov       rdx,7FFB39DAE1E0
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [33F0]
       int       3
       call      000000000000AB50
       int       3
; Total bytes of code 332

System.Collections.Tests.Perf_BitArray.BitArrayIntArrayCtor(Size: 4)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 16.702934666210776 > 15.6936336303302.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -14.682807142289619 (T) = (0 -17.04913337603452) / Math.Sqrt((0.25611107953870504 / (20)) + (0.16417338339362914 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.12611276261198798 = (15.139810099025533 - 17.04913337603452) / 15.139810099025533 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Collections.Tests.Perf_BitArray.BitArrayIntArrayCtor()
       push      rdi
       push      rsi
       sub       rsp,28
       mov       rsi,rcx
       mov       rcx,offset MT_System.Collections.BitArray
       call      000000000000C390
       mov       rdi,rax
       mov       rdx,[rsi+28]
       mov       rcx,rdi
       call      qword ptr [1060]
       mov       rax,rdi
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 50

; System.Collections.BitArray..ctor(Int32[])
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       mov       rsi,rcx
       mov       rdi,rdx
       test      rdi,rdi
       je        short 00000000000001DD
       mov       ebx,[rdi+8]
       cmp       ebx,3FFFFFF
       jg        short 00000000000001FB
       mov       edx,ebx
       mov       rcx,offset MT_System.Int32[]
       call      000000000000C4B0
       lea       rcx,[rsi+8]
       mov       rdx,rax
       call      0000000000000010
       mov       rdx,[rsi+8]
       mov       r8d,ebx
       mov       rcx,rdi
       call      qword ptr [9018]
       shl       ebx,5
       mov       [rsi+10],ebx
       xor       ecx,ecx
       mov       [rsi+14],ecx
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       ecx,7C7
       mov       rdx,7FFE84CBE098
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [33F0]
       int       3
       mov       rcx,offset MT_System.Int32
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,41D
       mov       rdx,7FFE84CBE098
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [37F8]
       mov       rdi,rax
       mov       dword ptr [rsi+8],20
       mov       rcx,offset MT_System.ArgumentException
       call      000000000000C390
       mov       rbx,rax
       mov       rdx,rsi
       mov       rcx,rdi
       call      qword ptr [3810]
       mov       rsi,rax
       mov       ecx,7C7
       mov       rdx,7FFE84CBE098
       call      00000000000014A0
       mov       r8,rax
       mov       rdx,rsi
       mov       rcx,rbx
       call      qword ptr [0BBD0]
       mov       rcx,rbx
       call      0000000000004690
       int       3
; Total bytes of code 257

Compare Jit Disasm

; System.Collections.Tests.Perf_BitArray.BitArrayIntArrayCtor()
       push      rdi
       push      rsi
       sub       rsp,28
       mov       rsi,rcx
       mov       rcx,offset MT_System.Collections.BitArray
       call      0000000000002AE0
       mov       rdi,rax
       mov       rdx,[rsi+28]
       mov       rcx,rdi
       call      qword ptr [1060]
       mov       rax,rdi
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 50

; System.Collections.BitArray..ctor(Int32[])
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       mov       rsi,rcx
       mov       rdi,rdx
       test      rdi,rdi
       je        short 000000000000041D
       mov       ebx,[rdi+8]
       cmp       ebx,3FFFFFF
       jg        short 000000000000043B
       mov       edx,ebx
       mov       rcx,offset MT_System.Int32[]
       call      0000000000002C00
       lea       rcx,[rsi+8]
       mov       rdx,rax
       call      0000000000000010
       mov       rdx,[rsi+8]
       mov       r8d,ebx
       mov       rcx,rdi
       call      qword ptr [9018]
       shl       ebx,5
       mov       [rsi+10],ebx
       xor       ecx,ecx
       mov       [rsi+14],ecx
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       ecx,7C7
       mov       rdx,7FFDB913E1E0
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [33F0]
       int       3
       mov       rcx,offset MT_System.Int32
       call      0000000000002AE0
       mov       rsi,rax
       mov       ecx,41D
       mov       rdx,7FFDB913E1E0
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [37F8]
       mov       rdi,rax
       mov       dword ptr [rsi+8],20
       mov       rcx,offset MT_System.ArgumentException
       call      0000000000002AE0
       mov       rbx,rax
       mov       rdx,rsi
       mov       rcx,rdi
       call      qword ptr [3810]
       mov       rsi,rax
       mov       ecx,7C7
       mov       rdx,7FFDB913E1E0
       call      000000000000A140
       mov       r8,rax
       mov       rdx,rsi
       mov       rcx,rbx
       call      qword ptr [0BBD0]
       mov       rcx,rbx
       call      0000000000002B00
       int       3
; Total bytes of code 257

System.Collections.Tests.Perf_BitArray.BitArrayLengthCtor(Size: 4)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 11.825155332080518 > 10.173337147369208.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -7.71008634966178 (T) = (0 -11.755543496062547) / Math.Sqrt((0.8096751708670027 / (20)) + (0.06582658547246203 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.1555615941782822 = (10.173013325544012 - 11.755543496062547) / 10.173013325544012 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Collections.Tests.Perf_BitArray.BitArrayLengthCtor()
       push      rdi
       push      rsi
       sub       rsp,28
       mov       rsi,rcx
       mov       rcx,offset MT_System.Collections.BitArray
       call      000000000000C390
       mov       rdi,rax
       mov       edx,[rsi+30]
       mov       rcx,rdi
       xor       r8d,r8d
       call      qword ptr [1018]
       mov       rax,rdi
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 52

; System.Collections.BitArray..ctor(Int32, Boolean)
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       mov       rsi,rcx
       mov       edi,edx
       mov       ebx,r8d
       test      edi,edi
       jl        short 000000000000F683
       lea       edx,[rdi+1F]
       shr       edx,5
       movsxd    rdx,edx
       mov       rcx,offset MT_System.Int32[]
       call      000000000000C4B0
       lea       rcx,[rsi+8]
       mov       rdx,rax
       call      0000000000000010
       mov       [rsi+10],edi
       test      bl,bl
       je        short 000000000000F676
       mov       rcx,[rsi+8]
       mov       edx,0FFFFFFFF
       call      qword ptr [37E0]
       and       edi,1F
       jle       short 000000000000F676
       mov       rcx,[rsi+8]
       mov       eax,[rcx+8]
       lea       edx,[rax+0FFFF]
       cmp       edx,eax
       jae       near ptr 000000000000F6F9
       mov       eax,edx
       mov       edx,1
       shlx      edx,edx,edi
       dec       edx
       mov       [rcx+rax*4+10],edx
       xor       ecx,ecx
       mov       [rsi+14],ecx
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       rcx,offset MT_System.Int32
       call      000000000000C390
       mov       rsi,rax
       mov       [rsi+8],edi
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      000000000000C390
       mov       rdi,rax
       mov       ecx,7AD
       mov       rdx,7FFB3B72E098
       call      00000000000014A0
       mov       rbx,rax
       mov       ecx,81
       mov       rdx,7FFB3B72E098
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [3810]
       mov       r9,rax
       mov       rdx,rbx
       mov       r8,rsi
       mov       rcx,rdi
       call      qword ptr [1858]
       mov       rcx,rdi
       call      0000000000004690
       int       3
       call      0000000000006930
       int       3
; Total bytes of code 255

Compare Jit Disasm

; System.Collections.Tests.Perf_BitArray.BitArrayLengthCtor()
       push      rdi
       push      rsi
       sub       rsp,28
       mov       rsi,rcx
       mov       rcx,offset MT_System.Collections.BitArray
       call      0000000000002AE0
       mov       rdi,rax
       mov       edx,[rsi+30]
       mov       rcx,rdi
       xor       r8d,r8d
       call      qword ptr [1018]
       mov       rax,rdi
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
; Total bytes of code 52

; System.Collections.BitArray..ctor(Int32, Boolean)
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       mov       rsi,rcx
       mov       edi,edx
       mov       ebx,r8d
       test      edi,edi
       jl        short 000000000000F683
       lea       edx,[rdi+1F]
       shr       edx,5
       movsxd    rdx,edx
       mov       rcx,offset MT_System.Int32[]
       call      0000000000002C00
       lea       rcx,[rsi+8]
       mov       rdx,rax
       call      0000000000000010
       mov       [rsi+10],edi
       test      bl,bl
       je        short 000000000000F676
       mov       rcx,[rsi+8]
       mov       edx,0FFFFFFFF
       call      qword ptr [37E0]
       and       edi,1F
       jle       short 000000000000F676
       mov       rcx,[rsi+8]
       mov       eax,[rcx+8]
       lea       edx,[rax+0FFFF]
       cmp       edx,eax
       jae       near ptr 000000000000F6F9
       mov       eax,edx
       mov       edx,1
       shlx      edx,edx,edi
       dec       edx
       mov       [rcx+rax*4+10],edx
       xor       ecx,ecx
       mov       [rsi+14],ecx
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       rcx,offset MT_System.Int32
       call      0000000000002AE0
       mov       rsi,rax
       mov       [rsi+8],edi
       mov       rcx,offset MT_System.ArgumentOutOfRangeException
       call      0000000000002AE0
       mov       rdi,rax
       mov       ecx,7AD
       mov       rdx,7FF929D3E1E0
       call      000000000000A140
       mov       rbx,rax
       mov       ecx,81
       mov       rdx,7FF929D3E1E0
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [3810]
       mov       r9,rax
       mov       rdx,rbx
       mov       r8,rsi
       mov       rcx,rdi
       call      qword ptr [1858]
       mov       rcx,rdi
       call      0000000000002B00
       int       3
       call      000000000000AB50
       int       3
; Total bytes of code 255

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

[performanceautofiler]

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Tests.Perf_GC<Char>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
AllocateUninitializedArray - Duration of single invocation	699.43 ns	896.82 ns	1.28	0.04	False
AllocateUninitializedArray - Duration of single invocation	214.20 ns	234.51 ns	1.09	0.01	False
AllocateArray - Duration of single invocation	247.70 ns	265.31 ns	1.07	0.00	False
AllocateArray - Duration of single invocation	1.24 μs	1.41 μs	1.14	0.01	False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_GC<Char>*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_GC<Char>.AllocateUninitializedArray(length: 10000, pinned: True)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 896.8159780527611 > 731.7809902663686.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -42.58525379041189 (T) = (0 -916.651861674259) / Math.Sqrt((58.89722285618322 / (20)) + (949.1476730158917 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.3156785216941346 = (696.7141642579461 - 916.651861674259) / 696.7141642579461 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_GC<Char>.AllocateUninitializedArray(length: 1000, pinned: True)

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 234.51250953370166 > 223.50619740060748.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -20.75314732672507 (T) = (0 -233.96996198408547) / Math.Sqrt((3.540776934527949 / (20)) + (31.653604018606885 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.09563393103797968 = (213.54756854091534 - 233.96996198408547) / 213.54756854091534 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_GC<Char>.AllocateArray(length: 1000, pinned: True)

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 265.30625229806174 > 259.5524720918846.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -27.164671281609646 (T) = (0 -264.1448533818429) / Math.Sqrt((4.746892162687712 / (20)) + (10.094746687195205 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.07754785816996065 = (245.13514771441322 - 264.1448533818429) / 245.13514771441322 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_GC<Char>.AllocateArray(length: 10000, pinned: True)

```log

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 1.4087448308270676 > 1.2702806935833255.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -43.22271177306731 (T) = (0 -1414.1734673610351) / Math.Sqrt((224.79249663715404 / (20)) + (301.0807195193993 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.15261081451862857 = (1226.930590575488 - 1414.1734673610351) / 1226.930590575488 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

### Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Xml.Linq.Perf_XDocument

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Create - Duration of single invocation	3.77 ns	5.91 ns	1.57	0.22	False	36.00234469229011	46.20917343046596	1.2835045557563822	Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Xml.Linq.Perf_XDocument*'

Payloads

Baseline
Compare

Histogram

System.Xml.Linq.Perf_XDocument.Create

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 5.91461656162288 > 3.884099620964606.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -50.08458971590841 (T) = (0 -5.745669236669544) / Math.Sqrt((0.007062661707122872 / (7)) + (0.026032612466330336 / (40))) is less than -2.0141033888794695 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (7) + (40) - 2, .025) and -0.550699548534917 = (3.705211136546719 - 5.745669236669544) / 3.705211136546719 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Xml.Linq.Perf_XDocument.Create()
       sub       rsp,28
       mov       rcx,offset MT_System.Xml.Linq.XDocument
       call      000000000000C390
       nop
       add       rsp,28
       ret
; Total bytes of code 25

Compare Jit Disasm

; System.Xml.Linq.Perf_XDocument.Create()
       sub       rsp,28
       mov       rcx,offset MT_System.Xml.Linq.XDocument
       call      0000000000002AE0
       nop
       add       rsp,28
       ret
; Total bytes of code 25

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Tests.Perf_UInt32

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ToString - Duration of single invocation	1.03 ns	2.54 ns	2.46	0.04	False	34.13213275749153	35.70453251262417	1.046068019432144	Trace	Trace
ToString - Duration of single invocation	10.92 ns	13.27 ns	1.22	0.03	False	138.67149372659676	150.94039967035067	1.088474607246556	Trace	Trace
ToString - Duration of single invocation	18.29 ns	20.47 ns	1.12	0.03	False	210.96662523293898	223.22277160191516	1.058095190912039	Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_UInt32*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_UInt32.ToString(value: 0)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 2.5371002415555544 > 1.0811338360230642.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -240.21782832508043 (T) = (0 -2.5433766791405863) / Math.Sqrt((0.0008444112211842843 / (20)) + (1.4915513273059036E-05 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -1.606914242828977 = (0.9756272904399644 - 2.5433766791405863) / 0.9756272904399644 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Tests.Perf_UInt32.ToString(UInt32)
       sub       rsp,28
       mov       ecx,edx
       call      qword ptr [93F0]
       nop
       add       rsp,28
       ret
; Total bytes of code 18

; System.Number.UInt32ToDecStr(UInt32)
       push      rdi
       push      rsi
       sub       rsp,28
       xor       eax,eax
       mov       [rsp+20],rax
       mov       esi,ecx
       mov       eax,esi
       mov       ecx,1
       cmp       eax,186A0
       jae       near ptr 000000000000F47D
       cmp       eax,0A
       jae       short 000000000000F3F1
       mov       edi,ecx
       cmp       edi,1
       jne       short 000000000000F3FA
       mov       rax,1FC410002C8
       mov       rax,[rax]
       cmp       esi,[rax+8]
       jae       near ptr 000000000000F49E
       mov       ecx,esi
       mov       rax,[rax+rcx*8+10]
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       cmp       eax,64
       jae       short 000000000000F457
       inc       ecx
       jmp       short 000000000000F3C6
       mov       ecx,edi
       call      0
       test      rax,rax
       je        near ptr 000000000000F497
       lea       rdx,[rax+0C]
       mov       [rsp+20],rdx
       mov       rdx,[rsp+20]
       movsxd    rcx,edi
       lea       rdx,[rdx+rcx*2]
       mov       ecx,0CCCCCCCD
       mov       r8d,esi
       imul      rcx,r8
       shr       rcx,23
       lea       r8d,[rcx+rcx*4]
       add       r8d,r8d
       sub       esi,r8d
       add       rdx,0FFFFFFFFFFFFFFFE
       add       esi,30
       mov       [rdx],si
       test      ecx,ecx
       mov       esi,ecx
       jne       short 000000000000F41F
       xor       edx,edx
       mov       [rsp+20],rdx
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       cmp       eax,3E8
       jae       short 000000000000F466
       add       ecx,2
       jmp       near ptr 000000000000F3C6
       cmp       eax,2710
       jae       short 000000000000F475
       add       ecx,3
       jmp       near ptr 000000000000F3C6
       add       ecx,4
       jmp       near ptr 000000000000F3C6
       mov       eax,esi
       shr       eax,5
       imul      rax,0A7C5AC5
       shr       rax,27
       mov       ecx,6
       jmp       near ptr 000000000000F3C1
       xor       edx,edx
       jmp       near ptr 000000000000F418
       call      0000000000006930
       int       3
; Total bytes of code 260

Compare Jit Disasm

; System.Tests.Perf_UInt32.ToString(UInt32)
       sub       rsp,28
       mov       ecx,edx
       call      qword ptr [93F0]
       nop
       add       rsp,28
       ret
; Total bytes of code 18

; System.Number.UInt32ToDecStr(UInt32)
       push      rdi
       push      rsi
       sub       rsp,28
       xor       eax,eax
       mov       [rsp+20],rax
       mov       esi,ecx
       mov       eax,esi
       mov       ecx,1
       cmp       eax,186A0
       jae       near ptr 000000000000F47D
       cmp       eax,0A
       jae       short 000000000000F3F1
       mov       edi,ecx
       cmp       edi,1
       jne       short 000000000000F3FA
       mov       rax,1E5DE0002C8
       mov       rax,[rax]
       cmp       esi,[rax+8]
       jae       near ptr 000000000000F49E
       mov       ecx,esi
       mov       rax,[rax+rcx*8+10]
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       cmp       eax,64
       jae       short 000000000000F457
       inc       ecx
       jmp       short 000000000000F3C6
       mov       ecx,edi
       call      0
       test      rax,rax
       je        near ptr 000000000000F497
       lea       rdx,[rax+0C]
       mov       [rsp+20],rdx
       mov       rdx,[rsp+20]
       movsxd    rcx,edi
       lea       rdx,[rdx+rcx*2]
       mov       ecx,0CCCCCCCD
       mov       r8d,esi
       imul      rcx,r8
       shr       rcx,23
       lea       r8d,[rcx+rcx*4]
       add       r8d,r8d
       sub       esi,r8d
       add       rdx,0FFFFFFFFFFFFFFFE
       add       esi,30
       mov       [rdx],si
       test      ecx,ecx
       mov       esi,ecx
       jne       short 000000000000F41F
       xor       edx,edx
       mov       [rsp+20],rdx
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       cmp       eax,3E8
       jae       short 000000000000F466
       add       ecx,2
       jmp       near ptr 000000000000F3C6
       cmp       eax,2710
       jae       short 000000000000F475
       add       ecx,3
       jmp       near ptr 000000000000F3C6
       add       ecx,4
       jmp       near ptr 000000000000F3C6
       mov       eax,esi
       shr       eax,5
       imul      rax,0A7C5AC5
       shr       rax,27
       mov       ecx,6
       jmp       near ptr 000000000000F3C1
       xor       edx,edx
       jmp       near ptr 000000000000F418
       call      000000000000AB50
       int       3
; Total bytes of code 260

System.Tests.Perf_UInt32.ToString(value: 12345)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 13.272826830310143 > 11.42823623973439.
IsChangePoint: Marked as a change because one of 6/27/2022 8:54:23 AM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -26.338099010229854 (T) = (0 -13.180446548904632) / Math.Sqrt((0.06444859949316877 / (20)) + (0.06743530951951933 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.16278737563426335 = (11.335216416255912 - 13.180446548904632) / 11.335216416255912 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Tests.Perf_UInt32.ToString(UInt32)
       sub       rsp,28
       mov       ecx,edx
       call      qword ptr [93F0]
       nop
       add       rsp,28
       ret
; Total bytes of code 18

; System.Number.UInt32ToDecStr(UInt32)
       push      rdi
       push      rsi
       sub       rsp,28
       xor       eax,eax
       mov       [rsp+20],rax
       mov       esi,ecx
       mov       eax,esi
       mov       ecx,1
       cmp       eax,186A0
       jae       near ptr 000000000000F47D
       cmp       eax,0A
       jae       short 000000000000F3F1
       mov       edi,ecx
       cmp       edi,1
       jne       short 000000000000F3FA
       mov       rax,1A360C002C8
       mov       rax,[rax]
       cmp       esi,[rax+8]
       jae       near ptr 000000000000F49E
       mov       ecx,esi
       mov       rax,[rax+rcx*8+10]
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       cmp       eax,64
       jae       short 000000000000F457
       inc       ecx
       jmp       short 000000000000F3C6
       mov       ecx,edi
       call      0
       test      rax,rax
       je        near ptr 000000000000F497
       lea       rdx,[rax+0C]
       mov       [rsp+20],rdx
       mov       rdx,[rsp+20]
       movsxd    rcx,edi
       lea       rdx,[rdx+rcx*2]
       mov       ecx,0CCCCCCCD
       mov       r8d,esi
       imul      rcx,r8
       shr       rcx,23
       lea       r8d,[rcx+rcx*4]
       add       r8d,r8d
       sub       esi,r8d
       add       rdx,0FFFFFFFFFFFFFFFE
       add       esi,30
       mov       [rdx],si
       test      ecx,ecx
       mov       esi,ecx
       jne       short 000000000000F41F
       xor       edx,edx
       mov       [rsp+20],rdx
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       cmp       eax,3E8
       jae       short 000000000000F466
       add       ecx,2
       jmp       near ptr 000000000000F3C6
       cmp       eax,2710
       jae       short 000000000000F475
       add       ecx,3
       jmp       near ptr 000000000000F3C6
       add       ecx,4
       jmp       near ptr 000000000000F3C6
       mov       eax,esi
       shr       eax,5
       imul      rax,0A7C5AC5
       shr       rax,27
       mov       ecx,6
       jmp       near ptr 000000000000F3C1
       xor       edx,edx
       jmp       near ptr 000000000000F418
       call      0000000000006930
       int       3
; Total bytes of code 260

Compare Jit Disasm

; System.Tests.Perf_UInt32.ToString(UInt32)
       sub       rsp,28
       mov       ecx,edx
       call      qword ptr [93F0]
       nop
       add       rsp,28
       ret
; Total bytes of code 18

; System.Number.UInt32ToDecStr(UInt32)
       push      rdi
       push      rsi
       sub       rsp,28
       xor       eax,eax
       mov       [rsp+20],rax
       mov       esi,ecx
       mov       eax,esi
       mov       ecx,1
       cmp       eax,186A0
       jae       near ptr 000000000000F47D
       cmp       eax,0A
       jae       short 000000000000F3F1
       mov       edi,ecx
       cmp       edi,1
       jne       short 000000000000F3FA
       mov       rax,29C174002C8
       mov       rax,[rax]
       cmp       esi,[rax+8]
       jae       near ptr 000000000000F49E
       mov       ecx,esi
       mov       rax,[rax+rcx*8+10]
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       cmp       eax,64
       jae       short 000000000000F457
       inc       ecx
       jmp       short 000000000000F3C6
       mov       ecx,edi
       call      0
       test      rax,rax
       je        near ptr 000000000000F497
       lea       rdx,[rax+0C]
       mov       [rsp+20],rdx
       mov       rdx,[rsp+20]
       movsxd    rcx,edi
       lea       rdx,[rdx+rcx*2]
       mov       ecx,0CCCCCCCD
       mov       r8d,esi
       imul      rcx,r8
       shr       rcx,23
       lea       r8d,[rcx+rcx*4]
       add       r8d,r8d
       sub       esi,r8d
       add       rdx,0FFFFFFFFFFFFFFFE
       add       esi,30
       mov       [rdx],si
       test      ecx,ecx
       mov       esi,ecx
       jne       short 000000000000F41F
       xor       edx,edx
       mov       [rsp+20],rdx
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       cmp       eax,3E8
       jae       short 000000000000F466
       add       ecx,2
       jmp       near ptr 000000000000F3C6
       cmp       eax,2710
       jae       short 000000000000F475
       add       ecx,3
       jmp       near ptr 000000000000F3C6
       add       ecx,4
       jmp       near ptr 000000000000F3C6
       mov       eax,esi
       shr       eax,5
       imul      rax,0A7C5AC5
       shr       rax,27
       mov       ecx,6
       jmp       near ptr 000000000000F3C1
       xor       edx,edx
       jmp       near ptr 000000000000F418
       call      000000000000AB50
       int       3
; Total bytes of code 260

System.Tests.Perf_UInt32.ToString(value: 4294967295)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 20.467470952615635 > 18.889329880639846.
IsChangePoint: Marked as a change because one of 6/27/2022 8:54:23 AM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -44.2949961286388 (T) = (0 -20.504303603853266) / Math.Sqrt((0.030865965817398065 / (20)) + (0.0597457281091598 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.13513765815054968 = (18.063274931130728 - 20.504303603853266) / 18.063274931130728 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Tests.Perf_UInt32.ToString(UInt32)
       sub       rsp,28
       mov       ecx,edx
       call      qword ptr [93F0]
       nop
       add       rsp,28
       ret
; Total bytes of code 18

; System.Number.UInt32ToDecStr(UInt32)
       push      rdi
       push      rsi
       sub       rsp,28
       xor       eax,eax
       mov       [rsp+20],rax
       mov       esi,ecx
       mov       eax,esi
       mov       ecx,1
       cmp       eax,186A0
       jae       near ptr 000000000000F47D
       cmp       eax,0A
       jae       short 000000000000F3F1
       mov       edi,ecx
       cmp       edi,1
       jne       short 000000000000F3FA
       mov       rax,1BD99C002C8
       mov       rax,[rax]
       cmp       esi,[rax+8]
       jae       near ptr 000000000000F49E
       mov       ecx,esi
       mov       rax,[rax+rcx*8+10]
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       cmp       eax,64
       jae       short 000000000000F457
       inc       ecx
       jmp       short 000000000000F3C6
       mov       ecx,edi
       call      0
       test      rax,rax
       je        near ptr 000000000000F497
       lea       rdx,[rax+0C]
       mov       [rsp+20],rdx
       mov       rdx,[rsp+20]
       movsxd    rcx,edi
       lea       rdx,[rdx+rcx*2]
       mov       ecx,0CCCCCCCD
       mov       r8d,esi
       imul      rcx,r8
       shr       rcx,23
       lea       r8d,[rcx+rcx*4]
       add       r8d,r8d
       sub       esi,r8d
       add       rdx,0FFFFFFFFFFFFFFFE
       add       esi,30
       mov       [rdx],si
       test      ecx,ecx
       mov       esi,ecx
       jne       short 000000000000F41F
       xor       edx,edx
       mov       [rsp+20],rdx
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       cmp       eax,3E8
       jae       short 000000000000F466
       add       ecx,2
       jmp       near ptr 000000000000F3C6
       cmp       eax,2710
       jae       short 000000000000F475
       add       ecx,3
       jmp       near ptr 000000000000F3C6
       add       ecx,4
       jmp       near ptr 000000000000F3C6
       mov       eax,esi
       shr       eax,5
       imul      rax,0A7C5AC5
       shr       rax,27
       mov       ecx,6
       jmp       near ptr 000000000000F3C1
       xor       edx,edx
       jmp       near ptr 000000000000F418
       call      0000000000006930
       int       3
; Total bytes of code 260

Compare Jit Disasm

; System.Tests.Perf_UInt32.ToString(UInt32)
       sub       rsp,28
       mov       ecx,edx
       call      qword ptr [93F0]
       nop
       add       rsp,28
       ret
; Total bytes of code 18

; System.Number.UInt32ToDecStr(UInt32)
       push      rdi
       push      rsi
       sub       rsp,28
       xor       eax,eax
       mov       [rsp+20],rax
       mov       esi,ecx
       mov       eax,esi
       mov       ecx,1
       cmp       eax,186A0
       jae       near ptr 000000000000F47D
       cmp       eax,0A
       jae       short 000000000000F3F1
       mov       edi,ecx
       cmp       edi,1
       jne       short 000000000000F3FA
       mov       rax,294880002C8
       mov       rax,[rax]
       cmp       esi,[rax+8]
       jae       near ptr 000000000000F49E
       mov       ecx,esi
       mov       rax,[rax+rcx*8+10]
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       cmp       eax,64
       jae       short 000000000000F457
       inc       ecx
       jmp       short 000000000000F3C6
       mov       ecx,edi
       call      0
       test      rax,rax
       je        near ptr 000000000000F497
       lea       rdx,[rax+0C]
       mov       [rsp+20],rdx
       mov       rdx,[rsp+20]
       movsxd    rcx,edi
       lea       rdx,[rdx+rcx*2]
       mov       ecx,0CCCCCCCD
       mov       r8d,esi
       imul      rcx,r8
       shr       rcx,23
       lea       r8d,[rcx+rcx*4]
       add       r8d,r8d
       sub       esi,r8d
       add       rdx,0FFFFFFFFFFFFFFFE
       add       esi,30
       mov       [rdx],si
       test      ecx,ecx
       mov       esi,ecx
       jne       short 000000000000F41F
       xor       edx,edx
       mov       [rsp+20],rdx
       add       rsp,28
       pop       rsi
       pop       rdi
       ret
       cmp       eax,3E8
       jae       short 000000000000F466
       add       ecx,2
       jmp       near ptr 000000000000F3C6
       cmp       eax,2710
       jae       short 000000000000F475
       add       ecx,3
       jmp       near ptr 000000000000F3C6
       add       ecx,4
       jmp       near ptr 000000000000F3C6
       mov       eax,esi
       shr       eax,5
       imul      rax,0A7C5AC5
       shr       rax,27
       mov       ecx,6
       jmp       near ptr 000000000000F3C1
       xor       edx,edx
       jmp       near ptr 000000000000F418
       call      000000000000AB50
       int       3
; Total bytes of code 260

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

[performanceautofiler]

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Tests.Perf_Uri

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
PathAndQuery - Duration of single invocation	2.59 ns	4.08 ns	1.57	0.06	False				Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_Uri*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Uri.PathAndQuery

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 4.076259061973574 > 2.716781591510871.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -62.380912356711406 (T) = (0 -4.067938405022274) / Math.Sqrt((0.015021961017434355 / (20)) + (0.00027007738362801187 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.7305592682237064 = (2.350649573069935 - 4.067938405022274) / 2.350649573069935 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Tests.Perf_Uri.PathAndQuery()
       mov       rcx,[rcx+8]
       cmp       [rcx],ecx
       jmp       qword ptr [13F0]
; Total bytes of code 12

; System.Uri.get_PathAndQuery()
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       mov       rsi,rcx
       cmp       qword ptr [rsi+18],0
       je        short 0000000000008B74
       mov       rcx,rsi
       call      qword ptr [1198]
       mov       rdi,rax
       cmp       qword ptr [rdi+20],0
       jne       short 0000000000008B68
       mov       rcx,rsi
       mov       edx,30
       mov       r8d,1
       call      qword ptr [1AF8]
       mov       rbx,rax
       mov       rcx,rsi
       call      qword ptr [1048]
       test      eax,eax
       je        short 0000000000008B5C
       mov       r8d,[rbx+8]
       test      r8d,r8d
       je        short 0000000000008BB8
       cmp       word ptr [rbx+0C],2F
       jne       short 0000000000008B5C
       dec       r8d
       mov       rcx,rbx
       mov       edx,1
       call      qword ptr [3360]
       mov       rbx,rax
       lea       rcx,[rdi+20]
       mov       rdx,rbx
       call      0000000000000010
       mov       rax,[rdi+20]
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       rcx,offset MT_System.InvalidOperationException
       call      000000000000C390
       mov       rsi,rax
       mov       ecx,60F
       mov       rdx,7FF952D52730
       call      00000000000014A0
       mov       rcx,rax
       call      qword ptr [3018]
       mov       rdx,rax
       mov       rcx,rsi
       call      qword ptr [0D2B8]
       mov       rcx,rsi
       call      0000000000004690
       int       3
       call      0000000000006930
       int       3
; Total bytes of code 206

Compare Jit Disasm

; System.Tests.Perf_Uri.PathAndQuery()
       mov       rcx,[rcx+8]
       cmp       [rcx],ecx
       jmp       qword ptr [13F0]
; Total bytes of code 12

; System.Uri.get_PathAndQuery()
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       mov       rsi,rcx
       cmp       qword ptr [rsi+18],0
       je        near ptr 0000000000008BAD
       mov       rcx,rsi
       call      qword ptr [1198]
       mov       rdi,rax
       cmp       qword ptr [rdi+20],0
       jne       near ptr 0000000000008BA1
       mov       rcx,rsi
       mov       edx,30
       mov       r8d,1
       call      qword ptr [1AF8]
       mov       rbx,rax
       mov       rcx,rsi
       call      qword ptr [1048]
       test      eax,eax
       je        short 0000000000008B95
       mov       ecx,[rbx+8]
       test      ecx,ecx
       je        near ptr 0000000000008BFF
       cmp       word ptr [rbx+0C],2F
       jne       short 0000000000008B95
       lea       r8d,[rcx+0FFFF]
       test      r8d,r8d
       jne       short 0000000000008B6A
       mov       rcx,20626802028
       mov       rsi,[rcx]
       jmp       short 0000000000008B92
       test      ecx,ecx
       je        near ptr 0000000000008BF0
       mov       ecx,r8d
       call      0
       mov       rsi,rax
       mov       r8d,[rsi+8]
       lea       rcx,[rsi+0C]
       lea       rdx,[rbx+0E]
       add       r8,r8
       call      qword ptr [0BE10]
       mov       rbx,rsi
       lea       rcx,[rdi+20]
       mov       rdx,rbx
       call      0000000000000010
       mov       rax,[rdi+20]
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       mov       rcx,offset MT_System.InvalidOperationException
       call      0000000000002AE0
       mov       rbx,rax
       mov       ecx,60F
       mov       rdx,7FFCD6972878
       call      000000000000A140
       mov       rcx,rax
       call      qword ptr [3018]
       mov       rdx,rax
       mov       rcx,rbx
       call      qword ptr [0D2B8]
       mov       rcx,rbx
       call      0000000000002B00
       mov       rcx,rbx
       mov       edx,1
       call      qword ptr [3378]
       int       3
       call      000000000000AB50
       int       3
; Total bytes of code 277

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

### Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Parse_ParallelAsync - Duration of single invocation	875.41 ns	941.15 ns	1.08	0.26	False	4974.591290509259	5412.571404569892	1.0880434368339427	Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark*'

Payloads

Baseline
Compare

Histogram

Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_ParallelAsync(Length: 128, Chunks: 16)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 941.1547358349115 > 933.8651070731028.
IsChangePoint: Marked as a change because one of 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -8.739061689299817 (T) = (0 -960.9095621093181) / Math.Sqrt((490.5947724789684 / (20)) + (1398.1840549818376 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.07543404460455165 = (893.5085949065846 - 960.9095621093181) / 893.5085949065846 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_ParallelAsync()
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       mov       rsi,rcx
       mov       rdi,offset MT_System.Func`1[[System.Threading.Tasks.Task, System.Private.CoreLib]]
       mov       rcx,rdi
       call      000000000000C390
       mov       rbx,rax
       test      rsi,rsi
       je        near ptr 0000000000001604
       lea       rcx,[rbx+8]
       mov       rdx,rsi
       call      0000000000000010
       mov       rcx,offset Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.ParallelWriter()
       mov       [rbx+18],rcx
       mov       rcx,rbx
       xor       edx,edx
       call      qword ptr [1270]
       mov       rbx,rax
       mov       rcx,rdi
       call      000000000000C390
       mov       rdi,rax
       lea       rcx,[rdi+8]
       mov       rdx,rsi
       call      0000000000000010
       mov       rcx,offset Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.ParallelReader()
       mov       [rdi+18],rcx
       mov       rcx,rdi
       xor       edx,edx
       call      qword ptr [1270]
       mov       rsi,rax
       mov       rcx,offset MT_System.Threading.Tasks.Task[]
       mov       edx,2
       call      000000000000C510
       mov       rdi,rax
       lea       rcx,[rdi+10]
       mov       rdx,rbx
       call      0000000000000010
       lea       rcx,[rdi+18]
       mov       rdx,rsi
       call      0000000000000010
       mov       rcx,rdi
       call      qword ptr [1360]
       nop
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       call      qword ptr [0B630]
       int       3
; Total bytes of code 203

; System.Threading.Tasks.Task.GetAwaiter()
       mov       rax,rcx
       ret
; Total bytes of code 4

; System.Runtime.CompilerServices.TaskAwaiter.GetResult()
       mov       rcx,[rcx]
       mov       eax,[rcx+34]
       and       eax,11000000
       cmp       eax,1000000
       jne       short 00000000000019B3
       ret
       jmp       qword ptr [78A0]
; Total bytes of code 25

; Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.ParallelWriter()
       sub       rsp,58
       xor       eax,eax
       mov       [rsp+28],rax
       vxorps    xmm4,xmm4,xmm4
       vmovdqa   xmmword ptr [rsp+30],xmm4
       vmovdqa   xmmword ptr [rsp+40],xmm4
       mov       [rsp+50],rax
       xor       eax,eax
       mov       [rsp+40],rax
       mov       [rsp+28],rcx
       mov       dword ptr [rsp+30],0FFFFFFFF
       lea       rcx,[rsp+28]
       call      qword ptr [57F8]
       mov       rax,[rsp+40]
       test      rax,rax
       je        short 000000000000192E
       add       rsp,58
       ret
       lea       rcx,[rsp+40]
       call      qword ptr [3948]
       jmp       short 0000000000001929
; Total bytes of code 91

; System.Threading.Tasks.Task.Run(System.Func`1<System.Threading.Tasks.Task>, System.Threading.CancellationToken)
       push      rdi
       push      rsi
       push      rbp
       push      rbx
       sub       rsp,38
       mov       rsi,rcx
       mov       rdi,rdx
       test      rsi,rsi
       je        near ptr 000000000000F5FE
       test      rdi,rdi
       jne       near ptr 000000000000F57E
       mov       rbx,offset MT_System.Threading.Tasks.Task`1[[System.Threading.Tasks.Task, System.Private.CoreLib]]
       mov       rcx,rbx
       call      qword ptr [9228]
       mov       rcx,175DB000A70
       mov       rbp,[rcx]
       cmp       [rax],al
       mov       rcx,rbx
       call      000000000000C390
       mov       rbx,rax
       mov       r9,rdi
       mov       dword ptr [rsp+20],8
       mov       dword ptr [rsp+28],2000
       mov       [rsp+30],rbp
       mov       rcx,rbx
       mov       rdx,rsi
       xor       r8d,r8d
       call      qword ptr [0F198]
       call      qword ptr [0B8A0]
       mov       rsi,rax
       test      rsi,rsi
       je        near ptr 000000000000F572
       mov       rcx,175DB000850
       cmp       rsi,[rcx]
       je        short 000000000000F49A
       mov       rcx,rbx
       call      qword ptr [0F4E0]
       lea       rcx,[rax+8]
       mov       rdx,rsi
       call      0000000000000010
       mov       rcx,rbx
       xor       edx,edx
       call      qword ptr [0F6D8]
       mov       rcx,offset MT_System.Threading.Tasks.UnwrapPromise`1[[System.Threading.Tasks.VoidTaskResult, System.Private.CoreLib]]
       call      000000000000C390
       mov       rsi,rax
       mov       edi,[rbx+34]
       and       edi,4
       test      edi,0FFFFFFBB
       jne       near ptr 000000000000F5DF
       test      dil,4
       jne       near ptr 000000000000F60A
       mov       [rsp+20],edi
       mov       dword ptr [rsp+28],400
       xor       ecx,ecx
       mov       [rsp+30],rcx
       mov       rcx,rsi
       xor       r9d,r9d
       xor       edx,edx
       xor       r8d,r8d
       call      qword ptr [0F198]
       mov       byte ptr [rsi+3A],1
       mov       rcx,175DB000AB0
       mov       rcx,[rcx]
       cmp       byte ptr [rcx+9D],0
       jne       near ptr 000000000000F645
       cmp       byte ptr [5678],0
       jne       near ptr 000000000000F67B
       test      dword ptr [rbx+34],1600000
       jne       near ptr 000000000000F5B7
       test      dword ptr [rbx+34],1600000
       jne       short 000000000000F58A
       cmp       qword ptr [rbx+20],0
       jne       short 000000000000F553
       lea       rcx,[rbx+20]
       mov       rdx,rsi
       xor       r8d,r8d
       call      000000000000F030
       test      rax,rax
       je        short 000000000000F566
       mov       rcx,rbx
       mov       rdx,rsi
       xor       r8d,r8d
       call      qword ptr [0FF00]
       test      eax,eax
       je        short 000000000000F58A
       mov       rax,rsi
       add       rsp,38
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       ret
       or        dword ptr [rbx+34],20000000
       jmp       near ptr 000000000000F49A
       cmp       dword ptr [rdi+20],0
       je        near ptr 000000000000F410
       jmp       short 000000000000F5EB
       call      000000000000F050
       test      eax,eax
       jne       short 000000000000F5A1
       mov       rcx,rsi
       mov       rdx,rbx
       call      qword ptr [7F60]
       jmp       short 000000000000F566
       movzx     ecx,byte ptr [rsi+39]
       test      ecx,ecx
       jne       short 000000000000F5C5
       mov       rcx,rsi
       mov       rdx,rbx
       call      qword ptr [7F78]
       jmp       short 000000000000F566
       mov       rcx,rsi
       mov       rdx,rbx
       call      qword ptr [7F78]
       jmp       short 000000000000F566
       cmp       ecx,1
       jne       short 000000000000F566
       mov       rcx,rsi
       mov       rdx,rbx
       xor       r8d,r8d
       call      qword ptr [7F90]
       mov       byte ptr [rsi+39],2
       jmp       short 000000000000F566
       mov       ecx,2E
       call      qword ptr [0B7E0]
       int       3
       mov       rcx,rdi
       call      qword ptr [1198]
       nop
       add       rsp,38
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       ret
       mov       ecx,2F
       call      qword ptr [0B7B0]
       int       3
       mov       rcx,7FF881BB4BE0
       mov       edx,39F
       call      000000000000FE00
       mov       rbp,[rax+48]
       test      rbp,rbp
       je        near ptr 000000000000F4D3
       mov       rcx,rsi
       call      qword ptr [0F4E0]
       lea       rcx,[rax+30]
       mov       rdx,rbp
       call      0000000000000010
       jmp       near ptr 000000000000F4D3
       mov       rcx,175DB000AB0
       mov       rdi,[rcx]
       mov       rcx,rsi
       call      qword ptr [0F408]
       mov       edx,eax
       mov       rcx,rdi
       mov       r8,175DB005938
       mov       r8,[r8]
       xor       r9d,r9d
       call      qword ptr [30F0]
       jmp       near ptr 000000000000F515
       mov       rcx,rsi
       call      qword ptr [0F048]
       jmp       near ptr 000000000000F522
; Total bytes of code 665

; Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.ParallelReader()
       sub       rsp,78
       xor       eax,eax
       mov       [rsp+28],rax
       vxorps    xmm4,xmm4,xmm4
       vmovdqa   xmmword ptr [rsp+30],xmm4
       vmovdqa   xmmword ptr [rsp+40],xmm4
       vmovdqa   xmmword ptr [rsp+50],xmm4
       vmovdqa   xmmword ptr [rsp+60],xmm4
       mov       [rsp+70],rax
       xor       eax,eax
       mov       [rsp+40],rax
       mov       [rsp+28],rcx
       mov       dword ptr [rsp+38],0FFFFFFFF
       lea       rcx,[rsp+28]
       call      qword ptr [57C8]
       mov       rax,[rsp+40]
       test      rax,rax
       je        short 0000000000001FAA
       add       rsp,78
       ret
       lea       rcx,[rsp+40]
       call      qword ptr [3948]
       jmp       short 0000000000001FA5
; Total bytes of code 103

; System.Threading.Tasks.Task.WhenAll(System.Threading.Tasks.Task[])
       push      rdi
       push      rsi
       push      rbp
       push      rbx
       sub       rsp,28
       mov       rsi,rcx
       test      rsi,rsi
       je        near ptr 00000000000016FC
       mov       edi,[rsi+8]
       test      edi,edi
       je        short 00000000000016A3
       movsxd    rdx,edi
       mov       rcx,offset MT_System.Threading.Tasks.Task[]
       call      000000000000C510
       mov       rbx,rax
       xor       ebp,ebp
       test      edi,edi
       jle       short 00000000000016DA
       test      edi,edi
       jl        short 00000000000016B4
       mov       edx,[rsi+8]
       cmp       [rbx+8],edi
       jl        short 00000000000016B4
       mov       edx,ebp
       mov       rax,[rsi+rdx*8+10]
       test      rax,rax
       je        short 00000000000016EB
       lea       rcx,[rbx+rdx*8+10]
       mov       rdx,rax
       call      0000000000000010
       inc       ebp
       cmp       ebp,edi
       jl        short 0000000000001682
       jmp       short 00000000000016DA
       mov       rcx,rsi
       add       rsp,28
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       jmp       qword ptr [1378]
       mov       edx,ebp
       mov       rax,[rsi+rdx*8+10]
       test      rax,rax
       je        short 00000000000016EB
       cmp       ebp,[rbx+8]
       jae       short 0000000000001708
       mov       edx,ebp
       lea       rcx,[rbx+rdx*8+10]
       mov       rdx,rax
       call      0000000000000010
       inc       ebp
       cmp       ebp,edi
       jl        short 00000000000016B4
       mov       rcx,rbx
       add       rsp,28
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       jmp       qword ptr [1378]
       mov       ecx,1C
       mov       edx,33
       call      qword ptr [0B768]
       int       3
       mov       ecx,33
       call      qword ptr [0B7B0]
       int       3
       call      0000000000006930
       int       3
; Total bytes of code 206

; System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(System.Threading.Tasks.Task)
       push      rsi
       sub       rsp,20
       mov       rsi,rcx
       test      dword ptr [rsi+34],1600000
       jne       short 0000000000001B52
       mov       rcx,rsi
       xor       r8d,r8d
       mov       edx,0FFFFFFFF
       call      qword ptr [0FAE0]
       mov       rcx,rsi
       call      qword ptr [0F270]
       mov       ecx,[rsi+34]
       and       ecx,1600000
       cmp       ecx,1000000
       je        short 0000000000001B75
       mov       rcx,rsi
       call      qword ptr [78B8]
       nop
       add       rsp,20
       pop       rsi
       ret
; Total bytes of code 76

Compare Jit Disasm

; Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_ParallelAsync()
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       mov       rsi,rcx
       mov       rdi,offset MT_System.Func`1[[System.Threading.Tasks.Task, System.Private.CoreLib]]
       mov       rcx,rdi
       call      0000000000002AE0
       mov       rbx,rax
       test      rsi,rsi
       je        near ptr 0000000000001604
       lea       rcx,[rbx+8]
       mov       rdx,rsi
       call      0000000000000010
       mov       rcx,offset Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.ParallelWriter()
       mov       [rbx+18],rcx
       mov       rcx,rbx
       xor       edx,edx
       call      qword ptr [1270]
       mov       rbx,rax
       mov       rcx,rdi
       call      0000000000002AE0
       mov       rdi,rax
       lea       rcx,[rdi+8]
       mov       rdx,rsi
       call      0000000000000010
       mov       rcx,offset Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.ParallelReader()
       mov       [rdi+18],rcx
       mov       rcx,rdi
       xor       edx,edx
       call      qword ptr [1270]
       mov       rsi,rax
       mov       rcx,offset MT_System.Threading.Tasks.Task[]
       mov       edx,2
       call      0000000000002C60
       mov       rdi,rax
       lea       rcx,[rdi+10]
       mov       rdx,rbx
       call      0000000000000010
       lea       rcx,[rdi+18]
       mov       rdx,rsi
       call      0000000000000010
       mov       rcx,rdi
       call      qword ptr [1360]
       nop
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       ret
       call      qword ptr [0B630]
       int       3
; Total bytes of code 203

; System.Threading.Tasks.Task.GetAwaiter()
       mov       rax,rcx
       ret
; Total bytes of code 4

; System.Runtime.CompilerServices.TaskAwaiter.GetResult()
       mov       rcx,[rcx]
       mov       eax,[rcx+34]
       and       eax,11000000
       cmp       eax,1000000
       jne       short 0000000000001913
       ret
       jmp       qword ptr [78A0]
; Total bytes of code 25

; Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.ParallelWriter()
       sub       rsp,58
       xor       eax,eax
       mov       [rsp+28],rax
       vxorps    xmm4,xmm4,xmm4
       vmovdqa   xmmword ptr [rsp+30],xmm4
       vmovdqa   xmmword ptr [rsp+40],xmm4
       mov       [rsp+50],rax
       xor       eax,eax
       mov       [rsp+40],rax
       mov       [rsp+28],rcx
       mov       dword ptr [rsp+30],0FFFFFFFF
       lea       rcx,[rsp+28]
       call      qword ptr [57C8]
       mov       rax,[rsp+40]
       test      rax,rax
       je        short 0000000000002A9E
       add       rsp,58
       ret
       lea       rcx,[rsp+40]
       call      qword ptr [37F8]
       jmp       short 0000000000002A99
; Total bytes of code 91

; System.Threading.Tasks.Task.Run(System.Func`1<System.Threading.Tasks.Task>, System.Threading.CancellationToken)
       push      rdi
       push      rsi
       push      rbp
       push      rbx
       sub       rsp,38
       mov       rsi,rcx
       mov       rdi,rdx
       test      rsi,rsi
       je        near ptr 000000000000F5FE
       test      rdi,rdi
       jne       near ptr 000000000000F57E
       mov       rbx,offset MT_System.Threading.Tasks.Task`1[[System.Threading.Tasks.Task, System.Private.CoreLib]]
       mov       rcx,rbx
       call      qword ptr [9228]
       mov       rcx,199BD800A70
       mov       rbp,[rcx]
       cmp       [rax],al
       mov       rcx,rbx
       call      0000000000002AE0
       mov       rbx,rax
       mov       r9,rdi
       mov       dword ptr [rsp+20],8
       mov       dword ptr [rsp+28],2000
       mov       [rsp+30],rbp
       mov       rcx,rbx
       mov       rdx,rsi
       xor       r8d,r8d
       call      qword ptr [0F198]
       call      qword ptr [0B8A0]
       mov       rsi,rax
       test      rsi,rsi
       je        near ptr 000000000000F572
       mov       rcx,199BD800850
       cmp       rsi,[rcx]
       je        short 000000000000F49A
       mov       rcx,rbx
       call      qword ptr [0F4E0]
       lea       rcx,[rax+8]
       mov       rdx,rsi
       call      0000000000000010
       mov       rcx,rbx
       xor       edx,edx
       call      qword ptr [0F6D8]
       mov       rcx,offset MT_System.Threading.Tasks.UnwrapPromise`1[[System.Threading.Tasks.VoidTaskResult, System.Private.CoreLib]]
       call      0000000000002AE0
       mov       rsi,rax
       mov       edi,[rbx+34]
       and       edi,4
       test      edi,0FFFFFFBB
       jne       near ptr 000000000000F5DF
       test      dil,4
       jne       near ptr 000000000000F60A
       mov       [rsp+20],edi
       mov       dword ptr [rsp+28],400
       xor       ecx,ecx
       mov       [rsp+30],rcx
       mov       rcx,rsi
       xor       r9d,r9d
       xor       edx,edx
       xor       r8d,r8d
       call      qword ptr [0F198]
       mov       byte ptr [rsi+3A],1
       mov       rcx,199BD800AB0
       mov       rcx,[rcx]
       cmp       byte ptr [rcx+9D],0
       jne       near ptr 000000000000F645
       cmp       byte ptr [5690],0
       jne       near ptr 000000000000F67B
       test      dword ptr [rbx+34],1600000
       jne       near ptr 000000000000F5B7
       test      dword ptr [rbx+34],1600000
       jne       short 000000000000F58A
       cmp       qword ptr [rbx+20],0
       jne       short 000000000000F553
       lea       rcx,[rbx+20]
       mov       rdx,rsi
       xor       r8d,r8d
       call      000000000000EC00
       test      rax,rax
       je        short 000000000000F566
       mov       rcx,rbx
       mov       rdx,rsi
       xor       r8d,r8d
       call      qword ptr [0FF00]
       test      eax,eax
       je        short 000000000000F58A
       mov       rax,rsi
       add       rsp,38
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       ret
       or        dword ptr [rbx+34],20000000
       jmp       near ptr 000000000000F49A
       cmp       dword ptr [rdi+20],0
       je        near ptr 000000000000F410
       jmp       short 000000000000F5EB
       call      0000000000000BC0
       test      eax,eax
       jne       short 000000000000F5A1
       mov       rcx,rsi
       mov       rdx,rbx
       call      qword ptr [7F60]
       jmp       short 000000000000F566
       movzx     ecx,byte ptr [rsi+39]
       test      ecx,ecx
       jne       short 000000000000F5C5
       mov       rcx,rsi
       mov       rdx,rbx
       call      qword ptr [7F78]
       jmp       short 000000000000F566
       mov       rcx,rsi
       mov       rdx,rbx
       call      qword ptr [7F78]
       jmp       short 000000000000F566
       cmp       ecx,1
       jne       short 000000000000F566
       mov       rcx,rsi
       mov       rdx,rbx
       xor       r8d,r8d
       call      qword ptr [7F90]
       mov       byte ptr [rsi+39],2
       jmp       short 000000000000F566
       mov       ecx,2E
       call      qword ptr [0B7E0]
       int       3
       mov       rcx,rdi
       call      qword ptr [1198]
       nop
       add       rsp,38
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       ret
       mov       ecx,2F
       call      qword ptr [0B7B0]
       int       3
       mov       rcx,7FFE976D4BF0
       mov       edx,3A0
       call      000000000000E5B0
       mov       rbp,[rax+48]
       test      rbp,rbp
       je        near ptr 000000000000F4D3
       mov       rcx,rsi
       call      qword ptr [0F4E0]
       lea       rcx,[rax+30]
       mov       rdx,rbp
       call      0000000000000010
       jmp       near ptr 000000000000F4D3
       mov       rcx,199BD800AB0
       mov       rdi,[rcx]
       mov       rcx,rsi
       call      qword ptr [0F408]
       mov       edx,eax
       mov       rcx,rdi
       mov       r8,199BD805928
       mov       r8,[r8]
       xor       r9d,r9d
       call      qword ptr [30F0]
       jmp       near ptr 000000000000F515
       mov       rcx,rsi
       call      qword ptr [0F048]
       jmp       near ptr 000000000000F522
; Total bytes of code 665

; Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.ParallelReader()
       sub       rsp,78
       xor       eax,eax
       mov       [rsp+28],rax
       vxorps    xmm4,xmm4,xmm4
       vmovdqa   xmmword ptr [rsp+30],xmm4
       vmovdqa   xmmword ptr [rsp+40],xmm4
       vmovdqa   xmmword ptr [rsp+50],xmm4
       vmovdqa   xmmword ptr [rsp+60],xmm4
       mov       [rsp+70],rax
       xor       eax,eax
       mov       [rsp+40],rax
       mov       [rsp+28],rcx
       mov       dword ptr [rsp+38],0FFFFFFFF
       lea       rcx,[rsp+28]
       call      qword ptr [57F8]
       mov       rax,[rsp+40]
       test      rax,rax
       je        short 000000000000308A
       add       rsp,78
       ret
       lea       rcx,[rsp+40]
       call      qword ptr [37F8]
       jmp       short 0000000000003085
; Total bytes of code 103

; System.Threading.Tasks.Task.WhenAll(System.Threading.Tasks.Task[])
       push      rdi
       push      rsi
       push      rbp
       push      rbx
       sub       rsp,28
       mov       rsi,rcx
       test      rsi,rsi
       je        near ptr 00000000000016FC
       mov       edi,[rsi+8]
       test      edi,edi
       je        short 00000000000016A3
       movsxd    rdx,edi
       mov       rcx,offset MT_System.Threading.Tasks.Task[]
       call      0000000000002C60
       mov       rbx,rax
       xor       ebp,ebp
       test      edi,edi
       jle       short 00000000000016DA
       test      edi,edi
       jl        short 00000000000016B4
       mov       edx,[rsi+8]
       cmp       [rbx+8],edi
       jl        short 00000000000016B4
       mov       edx,ebp
       mov       rax,[rsi+rdx*8+10]
       test      rax,rax
       je        short 00000000000016EB
       lea       rcx,[rbx+rdx*8+10]
       mov       rdx,rax
       call      0000000000000010
       inc       ebp
       cmp       ebp,edi
       jl        short 0000000000001682
       jmp       short 00000000000016DA
       mov       rcx,rsi
       add       rsp,28
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       jmp       qword ptr [1378]
       mov       edx,ebp
       mov       rax,[rsi+rdx*8+10]
       test      rax,rax
       je        short 00000000000016EB
       cmp       ebp,[rbx+8]
       jae       short 0000000000001708
       mov       edx,ebp
       lea       rcx,[rbx+rdx*8+10]
       mov       rdx,rax
       call      0000000000000010
       inc       ebp
       cmp       ebp,edi
       jl        short 00000000000016B4
       mov       rcx,rbx
       add       rsp,28
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       jmp       qword ptr [1378]
       mov       ecx,1C
       mov       edx,33
       call      qword ptr [0B768]
       int       3
       mov       ecx,33
       call      qword ptr [0B7B0]
       int       3
       call      000000000000AB50
       int       3
; Total bytes of code 206

; System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(System.Threading.Tasks.Task)
       push      rsi
       sub       rsp,20
       mov       rsi,rcx
       test      dword ptr [rsi+34],1600000
       jne       short 0000000000001952
       mov       rcx,rsi
       xor       r8d,r8d
       mov       edx,0FFFFFFFF
       call      qword ptr [0FAE0]
       mov       rcx,rsi
       call      qword ptr [0F270]
       mov       ecx,[rsi+34]
       and       ecx,1600000
       cmp       ecx,1000000
       je        short 0000000000001975
       mov       rcx,rsi
       call      qword ptr [78B8]
       nop
       add       rsp,20
       pop       rsi
       ret
; Total bytes of code 76

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Linq.Tests.Perf_Enumerable

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
CastToBaseClass - Duration of single invocation	2.25 μs	2.75 μs	1.22	0.31	False	21023.12853107345	22095.919023136248	1.0510290602313137	Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Linq.Tests.Perf_Enumerable*'

Payloads

Baseline
Compare

Histogram

System.Linq.Tests.Perf_Enumerable.CastToBaseClass(input: IEnumerable)

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 2.7518820488721802 > 2.3745418802092937.
IsChangePoint: Marked as a change because one of 7/26/2022 4:40:06 AM, 7/27/2022 4:00:59 PM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -10.69730814129595 (T) = (0 -2654.4570447730484) / Math.Sqrt((1850.5518745605737 / (20)) + (41539.969856858734 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.15677806696938354 = (2294.698629381347 - 2654.4570447730484) / 2294.698629381347 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Linq.Tests.Perf_Enumerable.CastToBaseClass(System.Linq.Tests.LinqTestData)
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       mov       rsi,rcx
       mov       rdi,[rdx+8]
       mov       rdx,rdi
       mov       rcx,offset MT_System.Collections.Generic.IEnumerable`1[[System.Object, System.Private.CoreLib]]
       call      qword ptr [0B7F8]
       mov       rdx,rax
       test      rdx,rdx
       je        short 000000000000176B
       jmp       short 00000000000017A0
       test      rdi,rdi
       je        short 00000000000017BB
       mov       rcx,offset MT_System.Linq.Enumerable+<CastIterator>d__67`1[[System.Object, System.Private.CoreLib]]
       call      000000000000C390
       mov       rbx,rax
       mov       dword ptr [rbx+28],0FFFFFFFE
       call      000000000000A600
       mov       [rbx+2C],eax
       lea       rcx,[rbx+18]
       mov       rdx,rdi
       call      0000000000000010
       mov       rdx,rbx
       mov       r8,[rsi+8]
       mov       rcx,offset MD_BenchmarkDotNet.Engines.ConsumerExtensions.Consume(System.Collections.Generic.IEnumerable`1<!!0>, BenchmarkDotNet.Engines.Consumer)
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       jmp       qword ptr [5870]
       mov       ecx,10
       call      qword ptr [0F780]
       int       3
; Total bytes of code 135

; System.Runtime.CompilerServices.CastHelpers.IsInstanceOfAny(Void*, System.Object)
       push      rdi
       push      rsi
       test      rdx,rdx
       je        near ptr 0000000000001968
       mov       rax,[rdx]
       cmp       rax,rcx
       je        near ptr 0000000000001968
       mov       r8,2399D800D10
       mov       r8,[r8]
       add       r8,10
       rorx      r9,rax,20
       xor       r9,rcx
       mov       r10,79B97F4A7C15
       imul      r9,r10
       mov       r10d,[r8]
       shrx      r9,r9,r10
       xor       r10d,r10d
       lea       r11d,[r9+1]
       movsxd    r11,r11d
       lea       r11,[r11+r11*2]
       lea       r11,[r8+r11*8]
       mov       esi,[r11]
       mov       rdi,[r11+8]
       and       esi,0FFFFFFFE
       cmp       rdi,rax
       jne       short 0000000000001945
       mov       rdi,[r11+10]
       xor       rdi,rcx
       cmp       rdi,1
       ja        short 0000000000001945
       cmp       esi,[r11]
       jne       short 0000000000001959
       mov       r8d,edi
       cmp       r8d,1
       je        short 0000000000001968
       jmp       short 0000000000001961
       test      esi,esi
       je        short 0000000000001959
       inc       r10d
       add       r9d,r10d
       and       r9d,[r8+4]
       cmp       r10d,8
       jl        short 000000000000190A
       mov       r8d,2
       jmp       short 000000000000193D
       test      r8d,r8d
       jne       short 000000000000196E
       xor       edx,edx
       mov       rax,rdx
       pop       rsi
       pop       rdi
       ret
       pop       rsi
       pop       rdi
       jmp       near ptr 0000000000000580
; Total bytes of code 181

; BenchmarkDotNet.Engines.ConsumerExtensions.Consume[[System.__Canon, System.Private.CoreLib]](System.Collections.Generic.IEnumerable`1<System.__Canon>, BenchmarkDotNet.Engines.Consumer)
       push      rbp
       push      r14
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,40
       lea       rbp,[rsp+60]
       xor       eax,eax
       mov       [rbp+0FFD0],rax
       mov       [rbp+0FFC0],rsp
       mov       [rbp+0FFD8],rcx
       mov       rsi,rcx
       mov       rbx,rdx
       mov       rdi,r8
       mov       r14,[rsi+10]
       mov       r11,[r14+10]
       test      r11,r11
       je        short 0000000000001A75
       jmp       short 0000000000001A8A
       mov       rcx,rsi
       mov       rdx,7FFBE676F020
       call      000000000000F380
       mov       r11,rax
       mov       rcx,rbx
       call      qword ptr [r11]
       mov       rbx,rax
       mov       [rbp+0FFC8],rbx
       mov       rcx,rbx
       mov       r11,7FFBE6100590
       call      qword ptr [r11]
       test      eax,eax
       je        short 0000000000001B18
       mov       r11,[r14+18]
       test      r11,r11
       je        short 0000000000001AB6
       jmp       short 0000000000001ACB
       mov       rcx,rsi
       mov       rdx,7FFBE676F0F8
       call      000000000000F380
       mov       r11,rax
       mov       rcx,rbx
       call      qword ptr [r11]
       mov       [rbp+0FFD0],rax
       mov       rdx,[r14+20]
       test      rdx,rdx
       je        short 0000000000001AE0
       jmp       short 0000000000001AF5
       mov       rcx,rsi
       mov       rdx,7FFBE676F260
       call      000000000000F380
       mov       rdx,rax
       lea       r8,[rbp+0FFD0]
       mov       rcx,rdi
       cmp       [rcx],ecx
       call      qword ptr [5B88]
       mov       rcx,rbx
       mov       r11,7FFBE6100590
       call      qword ptr [r11]
       test      eax,eax
       jne       short 0000000000001AAB
       mov       rcx,rbx
       mov       r11,7FFBE6100598
       call      qword ptr [r11]
       nop
       add       rsp,40
       pop       rbx
       pop       rsi
       pop       rdi
       pop       r14
       pop       rbp
       ret
       push      rbp
       push      r14
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,30
       mov       rbp,[rcx+20]
       mov       [rsp+20],rbp
       lea       rbp,[rbp+60]
       cmp       qword ptr [rbp+0FFC8],0
       je        short 0000000000001B63
       mov       rcx,[rbp+0FFC8]
       mov       r11,7FFBE6100598
       call      qword ptr [r11]
       nop
       add       rsp,30
       pop       rbx
       pop       rsi
       pop       rdi
       pop       r14
       pop       rbp
       ret
; Total bytes of code 303

Compare Jit Disasm

; System.Linq.Tests.Perf_Enumerable.CastToBaseClass(System.Linq.Tests.LinqTestData)
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,20
       mov       rsi,rcx
       mov       rdi,[rdx+8]
       mov       rdx,rdi
       mov       rcx,offset MT_System.Collections.Generic.IEnumerable`1[[System.Object, System.Private.CoreLib]]
       call      qword ptr [0B7F8]
       mov       rdx,rax
       test      rdx,rdx
       je        short 000000000000176B
       jmp       short 00000000000017A0
       test      rdi,rdi
       je        short 00000000000017BB
       mov       rcx,offset MT_System.Linq.Enumerable+<CastIterator>d__67`1[[System.Object, System.Private.CoreLib]]
       call      0000000000002AE0
       mov       rbx,rax
       mov       dword ptr [rbx+28],0FFFFFFFE
       call      0000000000009E60
       mov       [rbx+2C],eax
       lea       rcx,[rbx+18]
       mov       rdx,rdi
       call      0000000000000010
       mov       rdx,rbx
       mov       r8,[rsi+8]
       mov       rcx,offset MD_BenchmarkDotNet.Engines.ConsumerExtensions.Consume(System.Collections.Generic.IEnumerable`1<!!0>, BenchmarkDotNet.Engines.Consumer)
       add       rsp,20
       pop       rbx
       pop       rsi
       pop       rdi
       jmp       qword ptr [5870]
       mov       ecx,10
       call      qword ptr [0F780]
       int       3
; Total bytes of code 135

; System.Runtime.CompilerServices.CastHelpers.IsInstanceOfAny(Void*, System.Object)
       push      rdi
       push      rsi
       test      rdx,rdx
       je        near ptr 0000000000001968
       mov       rax,[rdx]
       cmp       rax,rcx
       je        near ptr 0000000000001968
       mov       r8,24415C00D10
       mov       r8,[r8]
       add       r8,10
       rorx      r9,rax,20
       xor       r9,rcx
       mov       r10,79B97F4A7C15
       imul      r9,r10
       mov       r10d,[r8]
       shrx      r9,r9,r10
       xor       r10d,r10d
       lea       r11d,[r9+1]
       movsxd    r11,r11d
       lea       r11,[r11+r11*2]
       lea       r11,[r8+r11*8]
       mov       esi,[r11]
       mov       rdi,[r11+8]
       and       esi,0FFFFFFFE
       cmp       rdi,rax
       jne       short 0000000000001945
       mov       rdi,[r11+10]
       xor       rdi,rcx
       cmp       rdi,1
       ja        short 0000000000001945
       cmp       esi,[r11]
       jne       short 0000000000001959
       mov       r8d,edi
       cmp       r8d,1
       je        short 0000000000001968
       jmp       short 0000000000001961
       test      esi,esi
       je        short 0000000000001959
       inc       r10d
       add       r9d,r10d
       and       r9d,[r8+4]
       cmp       r10d,8
       jl        short 000000000000190A
       mov       r8d,2
       jmp       short 000000000000193D
       test      r8d,r8d
       jne       short 000000000000196E
       xor       edx,edx
       mov       rax,rdx
       pop       rsi
       pop       rdi
       ret
       pop       rsi
       pop       rdi
       jmp       near ptr 0000000000008DE0
; Total bytes of code 181

; BenchmarkDotNet.Engines.ConsumerExtensions.Consume[[System.__Canon, System.Private.CoreLib]](System.Collections.Generic.IEnumerable`1<System.__Canon>, BenchmarkDotNet.Engines.Consumer)
       push      rbp
       push      r14
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,40
       lea       rbp,[rsp+60]
       xor       eax,eax
       mov       [rbp+0FFD0],rax
       mov       [rbp+0FFC0],rsp
       mov       [rbp+0FFD8],rcx
       mov       rsi,rcx
       mov       rbx,rdx
       mov       rdi,r8
       mov       r14,[rsi+10]
       mov       r11,[r14+10]
       test      r11,r11
       je        short 0000000000001A75
       jmp       short 0000000000001A8A
       mov       rcx,rsi
       mov       rdx,7FF8CCBAFA58
       call      0000000000000EF0
       mov       r11,rax
       mov       rcx,rbx
       call      qword ptr [r11]
       mov       rbx,rax
       mov       [rbp+0FFC8],rbx
       mov       rcx,rbx
       mov       r11,7FF8CC540590
       call      qword ptr [r11]
       test      eax,eax
       je        short 0000000000001B18
       mov       r11,[r14+18]
       test      r11,r11
       je        short 0000000000001AB6
       jmp       short 0000000000001ACB
       mov       rcx,rsi
       mov       rdx,7FF8CCBAFB30
       call      0000000000000EF0
       mov       r11,rax
       mov       rcx,rbx
       call      qword ptr [r11]
       mov       [rbp+0FFD0],rax
       mov       rdx,[r14+20]
       test      rdx,rdx
       je        short 0000000000001AE0
       jmp       short 0000000000001AF5
       mov       rcx,rsi
       mov       rdx,7FF8CCBAFC98
       call      0000000000000EF0
       mov       rdx,rax
       lea       r8,[rbp+0FFD0]
       mov       rcx,rdi
       cmp       [rcx],ecx
       call      qword ptr [5B88]
       mov       rcx,rbx
       mov       r11,7FF8CC540590
       call      qword ptr [r11]
       test      eax,eax
       jne       short 0000000000001AAB
       mov       rcx,rbx
       mov       r11,7FF8CC540598
       call      qword ptr [r11]
       nop
       add       rsp,40
       pop       rbx
       pop       rsi
       pop       rdi
       pop       r14
       pop       rbp
       ret
       push      rbp
       push      r14
       push      rdi
       push      rsi
       push      rbx
       sub       rsp,30
       mov       rbp,[rcx+20]
       mov       [rsp+20],rbp
       lea       rbp,[rbp+60]
       cmp       qword ptr [rbp+0FFC8],0
       je        short 0000000000001B63
       mov       rcx,[rbp+0FFC8]
       mov       r11,7FF8CC540598
       call      qword ptr [r11]
       nop
       add       rsp,30
       pop       rbx
       pop       rsi
       pop       rdi
       pop       r14
       pop       rbp
       ret
; Total bytes of code 303

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Architecture	x64
OS	Windows 10.0.18362
Baseline	543bcc5ee7d6a2b9471b016770227421c43a756e
Compare	4211dc40d06195682d4b0fc9a220bdb75732d720
Diff	Diff

Regressions in System.Xml.Linq.Perf_XElementList

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Enumerator - Duration of single invocation	241.53 ns	258.89 ns	1.07	0.02	False				Trace	Trace

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Xml.Linq.Perf_XElementList*'

Payloads

Baseline
Compare

Histogram

System.Xml.Linq.Perf_XElementList.Enumerator

Description of detection logic

IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 258.88528707801066 > 253.88985455469566.
IsChangePoint: Marked as a change because one of 6/22/2022 6:53:40 PM, 7/13/2022 7:22:00 AM, 7/24/2022 8:36:55 PM, 8/5/2022 10:47:59 PM, 8/15/2022 12:02:22 PM falls between 8/5/2022 10:47:59 PM and 8/15/2022 12:02:22 PM.
IsRegressionStdDev: Marked as regression because -21.254495585108565 (T) = (0 -260.03731860865685) / Math.Sqrt((28.37754724544103 / (20)) + (2.280619586824209 / (40))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (40) - 2, .025) and -0.11024569400050369 = (234.2160118375914 - 260.03731860865685) / 234.2160118375914 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; System.Xml.Linq.Perf_XElementList.Enumerator()
       push      rbp
       push      rsi
       sub       rsp,38
       lea       rbp,[rsp+40]
       mov       [rbp+0FFE0],rsp
       mov       r11,[rcx+10]
       mov       rsi,[rcx+8]
       mov       rcx,r11
       mov       r11,7FFCB2EF0558
       call      qword ptr [r11]
       mov       rcx,rax
       mov       [rbp+0FFF0],rcx
       mov       r11,7FFCB2EF0560
       call      qword ptr [r11]
       test      eax,eax
       je        short 00000000000090B1
       mov       rcx,[rbp+0FFF0]
       mov       r11,7FFCB2EF0568
       call      qword ptr [r11]
       lea       rcx,[rsi+10]
       mov       rdx,rax
       call      0000000000000010
       mov       rcx,[rbp+0FFF0]
       mov       r11,7FFCB2EF0560
       call      qword ptr [r11]
       test      eax,eax
       jne       short 000000000000907F
       mov       rcx,[rbp+0FFF0]
       mov       r11,7FFCB2EF0570
       call      qword ptr [r11]
       nop
       add       rsp,38
       pop       rsi
       pop       rbp
       ret
       push      rbp
       push      rsi
       sub       rsp,28
       mov       rbp,[rcx+20]
       mov       [rsp+20],rbp
       lea       rbp,[rbp+40]
       cmp       qword ptr [rbp+0FFF0],0
       je        short 00000000000090F5
       mov       rcx,[rbp+0FFF0]
       mov       r11,7FFCB2EF0570
       call      qword ptr [r11]
       nop
       add       rsp,28
       pop       rsi
       pop       rbp
       ret
; Total bytes of code 189

Compare Jit Disasm

; System.Xml.Linq.Perf_XElementList.Enumerator()
       push      rbp
       push      rsi
       sub       rsp,38
       lea       rbp,[rsp+40]
       mov       [rbp+0FFE0],rsp
       mov       r11,[rcx+10]
       mov       rsi,[rcx+8]
       mov       rcx,r11
       mov       r11,7FF8B92D0558
       call      qword ptr [r11]
       mov       rcx,rax
       mov       [rbp+0FFF0],rcx
       mov       r11,7FF8B92D0560
       call      qword ptr [r11]
       test      eax,eax
       je        short 00000000000090B1
       mov       rcx,[rbp+0FFF0]
       mov       r11,7FF8B92D0568
       call      qword ptr [r11]
       lea       rcx,[rsi+10]
       mov       rdx,rax
       call      0000000000000010
       mov       rcx,[rbp+0FFF0]
       mov       r11,7FF8B92D0560
       call      qword ptr [r11]
       test      eax,eax
       jne       short 000000000000907F
       mov       rcx,[rbp+0FFF0]
       mov       r11,7FF8B92D0570
       call      qword ptr [r11]
       nop
       add       rsp,38
       pop       rsi
       pop       rbp
       ret
       push      rbp
       push      rsi
       sub       rsp,28
       mov       rbp,[rcx+20]
       mov       [rsp+20],rbp
       lea       rbp,[rbp+40]
       cmp       qword ptr [rbp+0FFF0],0
       je        short 00000000000090F5
       mov       rcx,[rbp+0FFF0]
       mov       r11,7FF8B92D0570
       call      qword ptr [r11]
       nop
       add       rsp,28
       pop       rsi
       pop       rbp
       ret
; Total bytes of code 189

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository