[Perf] Windows/arm64: 6 Improvements on 6/4/2025 4:21:45 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | arm64
OS | Windows 10.0.22621
Queue | SurfaceWindows
Baseline | [fcd197c9a4ea9def2049fdb302eede3e044fba5f](https://github.com/dotnet/runtime/commit/fcd197c9a4ea9def2049fdb302eede3e044fba5f)
Compare | [a16df1d39d1ba6be8a2da69385488bbb558c7958](https://github.com/dotnet/runtime/commit/a16df1d39d1ba6be8a2da69385488bbb558c7958)
Diff | [Diff](https://github.com/dotnet/runtime/compare/fcd197c9a4ea9def2049fdb302eede3e044fba5f...a16df1d39d1ba6be8a2da69385488bbb558c7958)
Configs | CompilationMode:tiered, RunKind:micro


### Improvements in System.Memory.ReadOnlySequence

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Slice_Repeat_StartPosition_And_EndPosition - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.22621/SurfaceWindows/System.Memory.ReadOnlySequence.Slice_Repeat_StartPosition_And_EndPosition(Segment%3a%20Multiple).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/ReadOnlySequence.cs#L89-#L98>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 42.65 ns | 29.62 ns | 0.69 | 0.11 | False | | |
|<ul><li>[Slice_Repeat - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.22621/SurfaceWindows/System.Memory.ReadOnlySequence.Slice_Repeat(Segment%3a%20Single).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/ReadOnlySequence.cs#L78-#L87>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 30.84 ns | 9.94 ns | 0.32 | 0.13 | False | | |
|<ul><li>[Slice_StartPosition - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.22621/SurfaceWindows/System.Memory.ReadOnlySequence.Slice_StartPosition(Segment%3a%20Single).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/ReadOnlySequence.cs#L60-#L61>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 10.88 ns | 4.71 ns | 0.43 | 0.47 | False | | |
|<ul><li>[Slice_StartPosition_And_EndPosition - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.22621/SurfaceWindows/System.Memory.ReadOnlySequence.Slice_StartPosition_And_EndPosition(Segment%3a%20Single).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/ReadOnlySequence.cs#L75-#L76>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 8.05 ns | 4.15 ns | 0.51 | 0.60 | False | | |
|<ul><li>[Slice_Start_And_Length - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.22621/SurfaceWindows/System.Memory.ReadOnlySequence.Slice_Start_And_Length(Segment%3a%20Single).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/ReadOnlySequence.cs#L66-#L67>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 6.05 ns | 4.56 ns | 0.75 | 0.17 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_05_2025/refs/heads/main_arm64_Windows%2010.0.22621/SurfaceWindows_Improvement/System.Memory.ReadOnlySequence_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_05_2025/refs/heads/main_arm64_Windows%2010.0.22621/SurfaceWindows_Improvement/System.Memory.ReadOnlySequence_002.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_05_2025/refs/heads/main_arm64_Windows%2010.0.22621/SurfaceWindows_Improvement/System.Memory.ReadOnlySequence_003.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_05_2025/refs/heads/main_arm64_Windows%2010.0.22621/SurfaceWindows_Improvement/System.Memory.ReadOnlySequence_004.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_05_2025/refs/heads/main_arm64_Windows%2010.0.22621/SurfaceWindows_Improvement/System.Memory.ReadOnlySequence_005.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_05_2025/refs/heads/main_arm64_Windows%2010.0.22621/SurfaceWindows_Improvement/System.Memory.ReadOnlySequence.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Memory.ReadOnlySequence*'
```

<details>

### System.Memory.ReadOnlySequence.Slice_Repeat_StartPosition_And_EndPosition(Segment: Multiple)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.ReadOnlySequence.Slice_Repeat(Segment: Single)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.ReadOnlySequence.Slice_StartPosition(Segment: Single)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.ReadOnlySequence.Slice_StartPosition_And_EndPosition(Segment: Single)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.ReadOnlySequence.Slice_Start_And_Length(Segment: Single)

#### ETL Files

#### Histogram

#### JIT Disasms



### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


---


### Run Information

Name | Value
-- | --
Architecture | arm64
OS | Windows 10.0.22621
Queue | SurfaceWindows
Baseline | [fcd197c9a4ea9def2049fdb302eede3e044fba5f](https://github.com/dotnet/runtime/commit/fcd197c9a4ea9def2049fdb302eede3e044fba5f)
Compare | [fcbc76add236b383b78d789c7fab7598f6405be3](https://github.com/dotnet/runtime/commit/fcbc76add236b383b78d789c7fab7598f6405be3)
Diff | [Diff](https://github.com/dotnet/runtime/compare/fcd197c9a4ea9def2049fdb302eede3e044fba5f...fcbc76add236b383b78d789c7fab7598f6405be3)
Configs | CompilationMode:tiered, RunKind:micro


### Improvements in System.Text.Json.Tests.Utf8JsonReaderCommentsTests

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Utf8JsonReaderCommentParsing - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.22621/SurfaceWindows/System.Text.Json.Tests.Utf8JsonReaderCommentsTests.Utf8JsonReaderCommentParsing(CommentHandling%3a%20Skip%2c%20SegmentSize%3a%20100%2c%20TestCase%3a%20LongSingleLine).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Utf8JsonReader/Utf8JsonReader.Comments.Tests.cs#L51-#L62>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 633.12 ns | 581.50 ns | 0.92 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_05_2025/refs/heads/main_arm64_Windows%2010.0.22621/SurfaceWindows_Improvement/System.Text.Json.Tests.Utf8JsonReaderCommentsTests_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_05_2025/refs/heads/main_arm64_Windows%2010.0.22621/SurfaceWindows_Improvement/System.Text.Json.Tests.Utf8JsonReaderCommentsTests.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.Json.Tests.Utf8JsonReaderCommentsTests*'
```

<details>

### System.Text.Json.Tests.Utf8JsonReaderCommentsTests.Utf8JsonReaderCommentParsing(CommentHandling: Skip, SegmentSize: 100, TestCase: LongSingleLine)

#### ETL Files

#### Histogram

#### JIT Disasms



### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>

Name	Value
Architecture	arm64
OS	Windows 10.0.22621
Queue	SurfaceWindows
Baseline	fcd197c9a4ea9def2049fdb302eede3e044fba5f
Compare	a16df1d39d1ba6be8a2da69385488bbb558c7958
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
Slice_Repeat_StartPosition_And_EndPosition - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	42.65 ns	29.62 ns	0.69	0.11	False
Slice_Repeat - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	30.84 ns	9.94 ns	0.32	0.13	False
Slice_StartPosition - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	10.88 ns	4.71 ns	0.43	0.47	False
Slice_StartPosition_And_EndPosition - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	8.05 ns	4.15 ns	0.51	0.60	False
Slice_Start_And_Length - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	6.05 ns	4.56 ns	0.75	0.17	False

[Perf] Windows/arm64: 6 Improvements on 6/4/2025 4:21:45 AM +00:00 #56878

Description

Run Information

Improvements in System.Memory.ReadOnlySequence

Repro

System.Memory.ReadOnlySequence.Slice_Repeat_StartPosition_And_EndPosition(Segment: Multiple)

ETL Files

Histogram

JIT Disasms

System.Memory.ReadOnlySequence.Slice_Repeat(Segment: Single)

ETL Files

Histogram

JIT Disasms

System.Memory.ReadOnlySequence.Slice_StartPosition(Segment: Single)

ETL Files

Histogram

JIT Disasms

System.Memory.ReadOnlySequence.Slice_StartPosition_And_EndPosition(Segment: Single)

ETL Files

Histogram

JIT Disasms

System.Memory.ReadOnlySequence.Slice_Start_And_Length(Segment: Single)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Improvements in System.Text.Json.Tests.Utf8JsonReaderCommentsTests

Repro

System.Text.Json.Tests.Utf8JsonReaderCommentsTests.Utf8JsonReaderCommentParsing(CommentHandling: Skip, SegmentSize: 100, TestCase: LongSingleLine)

ETL Files

Histogram

JIT Disasms

Docs

Metadata

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