[Perf] Linux/arm64: 19 Regressions on 1/6/2024 6:16:24 PM

### Run Information

Name | Value
-- | --
Architecture | arm64
OS | ubuntu 20.04
Queue | AmpereUbuntu
Baseline | [a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77](https://github.com/dotnet/runtime/commit/a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77)
Compare | [6933285d2408ffc7889e0178e7f677913b6209c0](https://github.com/dotnet/runtime/commit/6933285d2408ffc7889e0178e7f677913b6209c0)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77...6933285d2408ffc7889e0178e7f677913b6209c0)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Memory.Span&lt;Byte&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[BinarySearch - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Memory.Span(Byte).BinarySearch(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L107-#L108>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 14.18 ns | 16.00 ns | 1.13 | 0.04 | False | | |
|<ul><li>[Fill - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Memory.Span(Byte).Fill(Size%3a%2033).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L43-#L44>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 3.66 ns | 5.63 ns | 1.54 | 0.41 | False | | |
|<ul><li>[Reverse - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Memory.Span(Byte).Reverse(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L46-#L47>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 17.11 ns | 33.27 ns | 1.94 | 0.30 | False | | |
|<ul><li>[StartsWith - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Memory.Span(Byte).StartsWith(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L61-#L62>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 16.63 ns | 18.70 ns | 1.12 | 0.32 | False | | |
|<ul><li>[BinarySearch - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Memory.Span(Byte).BinarySearch(Size%3a%2033).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L107-#L108>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 8.42 ns | 10.32 ns | 1.23 | 0.03 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Memory.Span%28Byte%29_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Memory.Span%28Byte%29_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Memory.Span%28Byte%29_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Memory.Span%28Byte%29_4.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Memory.Span%28Byte%29_5.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Memory.Span%28Byte%29.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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Memory.Span&lt;Byte&gt;*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-18115b81-b9a2-42ab-a7aa-b93d0d0cd7c384cfe22d9544bed9d/d333090c-b6b8-439c-a3a5-f7eddef2cc87.zip?sv=2021-08-06&se=2024-02-04T23%3A54%3A48Z&sr=c&sp=rl&sig=3Eyk%2BSrE%2BpTBbGM9i4M9uy2fy2ctGzRl79ClPxx0MxU%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-5a2b016e-d6d6-4dd1-8d00-5cb2083eea62037d5054d164252bc/f1eccf79-78a0-4232-8e13-40f589b1e83f.zip?sv=2021-08-06&se=2024-02-06T03%3A02%3A55Z&sr=c&sp=rl&sig=JJWv7bVexOF%2BLq45sixnn9Y9tacdaBaXQdL3iECQD%2Fs%3D>)
### System.Memory.Span&lt;Byte&gt;.BinarySearch(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Byte&gt;.Fill(Size: 33)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Byte&gt;.Reverse(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Byte&gt;.StartsWith(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Byte&gt;.BinarySearch(Size: 33)

#### 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 | ubuntu 20.04
Queue | AmpereUbuntu
Baseline | [a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77](https://github.com/dotnet/runtime/commit/a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77)
Compare | [6933285d2408ffc7889e0178e7f677913b6209c0](https://github.com/dotnet/runtime/commit/6933285d2408ffc7889e0178e7f677913b6209c0)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77...6933285d2408ffc7889e0178e7f677913b6209c0)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Buffers.Tests.SearchValuesCharTests

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[IndexOfAnyExcept - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Buffers.Tests.SearchValuesCharTests.IndexOfAnyExcept(Values%3a%20%22abcdefABCDEF0123456789%22).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Buffers/SearchValuesCharTests.cs#L53-#L54>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 25.50 ns | 27.02 ns | 1.06 | 0.02 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Buffers.Tests.SearchValuesCharTests_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Buffers.Tests.SearchValuesCharTests.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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Buffers.Tests.SearchValuesCharTests*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-18115b81-b9a2-42ab-a7aa-b93d0d0cd7c384cfe22d9544bed9d/d333090c-b6b8-439c-a3a5-f7eddef2cc87.zip?sv=2021-08-06&se=2024-02-04T23%3A54%3A48Z&sr=c&sp=rl&sig=3Eyk%2BSrE%2BpTBbGM9i4M9uy2fy2ctGzRl79ClPxx0MxU%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-5a2b016e-d6d6-4dd1-8d00-5cb2083eea62037d5054d164252bc/f1eccf79-78a0-4232-8e13-40f589b1e83f.zip?sv=2021-08-06&se=2024-02-06T03%3A02%3A55Z&sr=c&sp=rl&sig=JJWv7bVexOF%2BLq45sixnn9Y9tacdaBaXQdL3iECQD%2Fs%3D>)
### System.Buffers.Tests.SearchValuesCharTests.IndexOfAnyExcept(Values: "abcdefABCDEF0123456789")

#### 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 | ubuntu 20.04
Queue | AmpereUbuntu
Baseline | [a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77](https://github.com/dotnet/runtime/commit/a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77)
Compare | [6933285d2408ffc7889e0178e7f677913b6209c0](https://github.com/dotnet/runtime/commit/6933285d2408ffc7889e0178e7f677913b6209c0)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77...6933285d2408ffc7889e0178e7f677913b6209c0)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.IO.Hashing.Tests.Crc32_AppendPerf

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Append - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.IO.Hashing.Tests.Crc32_AppendPerf.Append(BufferSize%3a%2016).html>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 5.32 ns | 6.61 ns | 1.24 | 0.03 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.IO.Hashing.Tests.Crc32_AppendPerf_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.IO.Hashing.Tests.Crc32_AppendPerf.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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.IO.Hashing.Tests.Crc32_AppendPerf*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-18115b81-b9a2-42ab-a7aa-b93d0d0cd7c384cfe22d9544bed9d/d333090c-b6b8-439c-a3a5-f7eddef2cc87.zip?sv=2021-08-06&se=2024-02-04T23%3A54%3A48Z&sr=c&sp=rl&sig=3Eyk%2BSrE%2BpTBbGM9i4M9uy2fy2ctGzRl79ClPxx0MxU%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-5a2b016e-d6d6-4dd1-8d00-5cb2083eea62037d5054d164252bc/f1eccf79-78a0-4232-8e13-40f589b1e83f.zip?sv=2021-08-06&se=2024-02-06T03%3A02%3A55Z&sr=c&sp=rl&sig=JJWv7bVexOF%2BLq45sixnn9Y9tacdaBaXQdL3iECQD%2Fs%3D>)
### System.IO.Hashing.Tests.Crc32_AppendPerf.Append(BufferSize: 16)

#### 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 | ubuntu 20.04
Queue | AmpereUbuntu
Baseline | [a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77](https://github.com/dotnet/runtime/commit/a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77)
Compare | [6933285d2408ffc7889e0178e7f677913b6209c0](https://github.com/dotnet/runtime/commit/6933285d2408ffc7889e0178e7f677913b6209c0)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77...6933285d2408ffc7889e0178e7f677913b6209c0)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Text.Perf_Ascii

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ToUpperInPlace_Bytes - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Text.Perf_Ascii.ToUpperInPlace_Bytes(Size%3a%20128).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Encoding/Perf.Ascii.cs#L94-#L95>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 14.48 ns | 17.28 ns | 1.19 | 0.23 | False | | |
|<ul><li>[EqualsIgnoreCase_DifferentCase_Chars - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Text.Perf_Ascii.EqualsIgnoreCase_DifferentCase_Chars(Size%3a%20128).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Encoding/Perf.Ascii.cs#L64-#L65>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 52.84 ns | 57.34 ns | 1.09 | 0.07 | False | | |
|<ul><li>[ToLowerInPlace_Chars - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Text.Perf_Ascii.ToLowerInPlace_Chars(Size%3a%20128).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Encoding/Perf.Ascii.cs#L91-#L92>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 26.51 ns | 29.23 ns | 1.10 | 0.08 | False | | |
|<ul><li>[ToUpperInPlace_Chars - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Text.Perf_Ascii.ToUpperInPlace_Chars(Size%3a%20128).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Encoding/Perf.Ascii.cs#L97-#L98>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 26.40 ns | 29.24 ns | 1.11 | 0.09 | False | | |
|<ul><li>[ToLowerInPlace_Bytes - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Text.Perf_Ascii.ToLowerInPlace_Bytes(Size%3a%20128).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Encoding/Perf.Ascii.cs#L88-#L89>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 14.31 ns | 17.14 ns | 1.20 | 0.21 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Text.Perf_Ascii_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Text.Perf_Ascii_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Text.Perf_Ascii_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Text.Perf_Ascii_4.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Text.Perf_Ascii_5.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Text.Perf_Ascii.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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.Perf_Ascii*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-18115b81-b9a2-42ab-a7aa-b93d0d0cd7c384cfe22d9544bed9d/d333090c-b6b8-439c-a3a5-f7eddef2cc87.zip?sv=2021-08-06&se=2024-02-04T23%3A54%3A48Z&sr=c&sp=rl&sig=3Eyk%2BSrE%2BpTBbGM9i4M9uy2fy2ctGzRl79ClPxx0MxU%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-5a2b016e-d6d6-4dd1-8d00-5cb2083eea62037d5054d164252bc/f1eccf79-78a0-4232-8e13-40f589b1e83f.zip?sv=2021-08-06&se=2024-02-06T03%3A02%3A55Z&sr=c&sp=rl&sig=JJWv7bVexOF%2BLq45sixnn9Y9tacdaBaXQdL3iECQD%2Fs%3D>)
### System.Text.Perf_Ascii.ToUpperInPlace_Bytes(Size: 128)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Perf_Ascii.EqualsIgnoreCase_DifferentCase_Chars(Size: 128)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Perf_Ascii.ToLowerInPlace_Chars(Size: 128)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Perf_Ascii.ToUpperInPlace_Chars(Size: 128)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Perf_Ascii.ToLowerInPlace_Bytes(Size: 128)

#### 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 | ubuntu 20.04
Queue | AmpereUbuntu
Baseline | [a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77](https://github.com/dotnet/runtime/commit/a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77)
Compare | [6933285d2408ffc7889e0178e7f677913b6209c0](https://github.com/dotnet/runtime/commit/6933285d2408ffc7889e0178e7f677913b6209c0)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77...6933285d2408ffc7889e0178e7f677913b6209c0)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Buffers.Tests.SearchValuesByteTests

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[IndexOfAnyExcept - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Buffers.Tests.SearchValuesByteTests.IndexOfAnyExcept(Values%3a%20%22abcdefABCDEF0123456789%22).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Buffers/SearchValuesByteTests.cs#L55-#L56>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 17.50 ns | 20.43 ns | 1.17 | 0.15 | False | | |
|<ul><li>[IndexOfAny - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Buffers.Tests.SearchValuesByteTests.IndexOfAny(Values%3a%20%22abcdefABCDEF0123456789%22).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Buffers/SearchValuesByteTests.cs#L52-#L53>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 17.25 ns | 18.47 ns | 1.07 | 0.24 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Buffers.Tests.SearchValuesByteTests_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Buffers.Tests.SearchValuesByteTests_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Buffers.Tests.SearchValuesByteTests.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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Buffers.Tests.SearchValuesByteTests*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-18115b81-b9a2-42ab-a7aa-b93d0d0cd7c384cfe22d9544bed9d/d333090c-b6b8-439c-a3a5-f7eddef2cc87.zip?sv=2021-08-06&se=2024-02-04T23%3A54%3A48Z&sr=c&sp=rl&sig=3Eyk%2BSrE%2BpTBbGM9i4M9uy2fy2ctGzRl79ClPxx0MxU%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-5a2b016e-d6d6-4dd1-8d00-5cb2083eea62037d5054d164252bc/f1eccf79-78a0-4232-8e13-40f589b1e83f.zip?sv=2021-08-06&se=2024-02-06T03%3A02%3A55Z&sr=c&sp=rl&sig=JJWv7bVexOF%2BLq45sixnn9Y9tacdaBaXQdL3iECQD%2Fs%3D>)
### System.Buffers.Tests.SearchValuesByteTests.IndexOfAnyExcept(Values: "abcdefABCDEF0123456789")

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Buffers.Tests.SearchValuesByteTests.IndexOfAny(Values: "abcdefABCDEF0123456789")

#### 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 | ubuntu 20.04
Queue | AmpereUbuntu
Baseline | [a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77](https://github.com/dotnet/runtime/commit/a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77)
Compare | [6933285d2408ffc7889e0178e7f677913b6209c0](https://github.com/dotnet/runtime/commit/6933285d2408ffc7889e0178e7f677913b6209c0)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77...6933285d2408ffc7889e0178e7f677913b6209c0)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.IO.Hashing.Tests.Crc32_GetCurrentHashPerf

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[GetCurrentHash - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.IO.Hashing.Tests.Crc32_GetCurrentHashPerf.GetCurrentHash.html>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACo1UXW/TMBR9R+I/+C0JZGmabrBWCqIrYyujULq+ITS5yW1i5I/o2tmaCe23Y6dVWTsJ5SWyj8859/jKNzOgukYQII1+9Yc8lIBALmrG8wVUiqQp8XJlJJge1tIwAd4h6wKpzMqWh7DWvRJornuCMnlEHGNWMgOZsdUIk8T3Nu9OvZB4FIVdBHv2ErT5RgU4z4/ebaMNiGj6PbqmumSyiNy5jiaYDZK7KzCTGtGGd6dzwHV0CP0LsajlRMk1K2qkhimpf3oTJSrG291M5eD9IukT8Qyz9Nx7/T+lhW6YzHcKwTJUzwRMg6hM478QjpUJOtCmSn/l96JtWxf+F30pCyahC9cZd+HNlFQd4zrqVBrACsF+u0jmhVo2VafA87LRLKN8jkooh3QVXjcrZPkVVyvK2WOLdZEtkkXXCpebCtCOhGzf6+ELnig7LoBLVe1Wh9OwtLJbQ0VFPpCcGnCT5SdxMjjpxyf982X8fnQ2HJ0Oo/PhWTJI+m/jeBTHroSuhaDIHoFQLO4E3fitoUsQkjcBWTVHFcL9RIXuKf+ooQbrU6H6bafxBXkBuuYmRZs695/dZIuP7wFpYZ0GQUhaK2ecfkYGMufNHnHNajcush3GHJC4O2YlRUMemCmJr23zQKd7TUg2meK1kOlxpmaL63QbwhINMxxS75Ntnf2HNLutkxBf6sBhuuLMpHQDOvgLZlnLYOUEAAA=>)</li></ul> | 5.47 ns | 6.90 ns | 1.26 | 0.30 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.IO.Hashing.Tests.Crc32_GetCurrentHashPerf_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.IO.Hashing.Tests.Crc32_GetCurrentHashPerf.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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.IO.Hashing.Tests.Crc32_GetCurrentHashPerf*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-18115b81-b9a2-42ab-a7aa-b93d0d0cd7c384cfe22d9544bed9d/d333090c-b6b8-439c-a3a5-f7eddef2cc87.zip?sv=2021-08-06&se=2024-02-04T23%3A54%3A48Z&sr=c&sp=rl&sig=3Eyk%2BSrE%2BpTBbGM9i4M9uy2fy2ctGzRl79ClPxx0MxU%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-5a2b016e-d6d6-4dd1-8d00-5cb2083eea62037d5054d164252bc/f1eccf79-78a0-4232-8e13-40f589b1e83f.zip?sv=2021-08-06&se=2024-02-06T03%3A02%3A55Z&sr=c&sp=rl&sig=JJWv7bVexOF%2BLq45sixnn9Y9tacdaBaXQdL3iECQD%2Fs%3D>)
### System.IO.Hashing.Tests.Crc32_GetCurrentHashPerf.GetCurrentHash

#### 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 | ubuntu 20.04
Queue | AmpereUbuntu
Baseline | [a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77](https://github.com/dotnet/runtime/commit/a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77)
Compare | [6933285d2408ffc7889e0178e7f677913b6209c0](https://github.com/dotnet/runtime/commit/6933285d2408ffc7889e0178e7f677913b6209c0)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77...6933285d2408ffc7889e0178e7f677913b6209c0)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Tests.Perf_Array

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Reverse - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Tests.Perf_Array.Reverse.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime/Perf.Array.cs#L291-#L292>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACo1UXW/TQBB8R+I/3NvZ4CZOQmiJZEQaWmghKLh5Q6i62Jv40H1Ye+fWrip+O3dOFCWphPxi+cYzs3OrXc+BmQpBgrLm1TN5LACBXFZc5CmUmiQJobm2CmwfK2W5BHrMukSmsqLlIaxNvwCWm75kXJ0Qp5gV3EJmXTXCFQlo/f4djQhlKN1LuGcvwdgfTIL3/ETvGmNB9jxoegvA9f0UkTW9FB4AzUGatFIzrdZ8UyGzXCvzi860LLloT3OdA/1Nkr+EWu7oOX39P6WDvnGV7xSSZ6gPBNyALG0TvBBOtQ070G60+S4eZNuWLvxbc6U2XEEXrjfuwptrpTvG9dQbZQFLBPfsIlls9LIpOwVeFI3hGRML1FJ7pKvwa7NCnn8ResUEf2qxLrJ0mHatcFWXgG7kVTuPxxM6024dAJe63L0dT/vSye4skyX5SHJmwW9OMIyHo7NBfDa4WMbnk/GHyfiiNxwNxsP4/G0cT+LYlzCVlAz5ExCGm3vJ6qA19Aki8iYkq+akQrTfmMiP8s8KKnA+Jeo/bttekFMwlbAJutR5cHCTLT51W8U2zmkURqS18sbJNXJQuWj2iG9We/CR0X0DJP6OWcHQkkduCxIY1zwwyV4TkTrTopIqOc3UbHGTbEM4ouVWQEI/u9a5f0SzO3oJCZQJPWZKwW3CajDhPwzv7LbFBAAA>)</li></ul> | 33.26 ns | 52.39 ns | 1.58 | 0.09 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Tests.Perf_Array_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Tests.Perf_Array.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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Array*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-18115b81-b9a2-42ab-a7aa-b93d0d0cd7c384cfe22d9544bed9d/d333090c-b6b8-439c-a3a5-f7eddef2cc87.zip?sv=2021-08-06&se=2024-02-04T23%3A54%3A48Z&sr=c&sp=rl&sig=3Eyk%2BSrE%2BpTBbGM9i4M9uy2fy2ctGzRl79ClPxx0MxU%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-5a2b016e-d6d6-4dd1-8d00-5cb2083eea62037d5054d164252bc/f1eccf79-78a0-4232-8e13-40f589b1e83f.zip?sv=2021-08-06&se=2024-02-06T03%3A02%3A55Z&sr=c&sp=rl&sig=JJWv7bVexOF%2BLq45sixnn9Y9tacdaBaXQdL3iECQD%2Fs%3D>)
### System.Tests.Perf_Array.Reverse

#### 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 | ubuntu 20.04
Queue | AmpereUbuntu
Baseline | [a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77](https://github.com/dotnet/runtime/commit/a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77)
Compare | [6933285d2408ffc7889e0178e7f677913b6209c0](https://github.com/dotnet/runtime/commit/6933285d2408ffc7889e0178e7f677913b6209c0)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77...6933285d2408ffc7889e0178e7f677913b6209c0)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Memory.Span&lt;Char&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[BinarySearch - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Memory.Span(Char).BinarySearch(Size%3a%2033).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L107-#L108>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 8.76 ns | 10.39 ns | 1.19 | 0.04 | False | | |
|<ul><li>[BinarySearch - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Memory.Span(Char).BinarySearch(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L107-#L108>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 14.68 ns | 16.38 ns | 1.12 | 0.04 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Memory.Span%28Char%29_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Memory.Span%28Char%29_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Memory.Span%28Char%29.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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Memory.Span&lt;Char&gt;*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-18115b81-b9a2-42ab-a7aa-b93d0d0cd7c384cfe22d9544bed9d/d333090c-b6b8-439c-a3a5-f7eddef2cc87.zip?sv=2021-08-06&se=2024-02-04T23%3A54%3A48Z&sr=c&sp=rl&sig=3Eyk%2BSrE%2BpTBbGM9i4M9uy2fy2ctGzRl79ClPxx0MxU%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-5a2b016e-d6d6-4dd1-8d00-5cb2083eea62037d5054d164252bc/f1eccf79-78a0-4232-8e13-40f589b1e83f.zip?sv=2021-08-06&se=2024-02-06T03%3A02%3A55Z&sr=c&sp=rl&sig=JJWv7bVexOF%2BLq45sixnn9Y9tacdaBaXQdL3iECQD%2Fs%3D>)
### System.Memory.Span&lt;Char&gt;.BinarySearch(Size: 33)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Char&gt;.BinarySearch(Size: 512)

#### 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 | ubuntu 20.04
Queue | AmpereUbuntu
Baseline | [a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77](https://github.com/dotnet/runtime/commit/a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77)
Compare | [6933285d2408ffc7889e0178e7f677913b6209c0](https://github.com/dotnet/runtime/commit/6933285d2408ffc7889e0178e7f677913b6209c0)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77...6933285d2408ffc7889e0178e7f677913b6209c0)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.IO.Hashing.Tests.Crc64_GetCurrentHashPerf

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[GetCurrentHash - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.IO.Hashing.Tests.Crc64_GetCurrentHashPerf.GetCurrentHash.html>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 5.22 ns | 6.74 ns | 1.29 | 0.05 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.IO.Hashing.Tests.Crc64_GetCurrentHashPerf_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.IO.Hashing.Tests.Crc64_GetCurrentHashPerf.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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.IO.Hashing.Tests.Crc64_GetCurrentHashPerf*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-18115b81-b9a2-42ab-a7aa-b93d0d0cd7c384cfe22d9544bed9d/d333090c-b6b8-439c-a3a5-f7eddef2cc87.zip?sv=2021-08-06&se=2024-02-04T23%3A54%3A48Z&sr=c&sp=rl&sig=3Eyk%2BSrE%2BpTBbGM9i4M9uy2fy2ctGzRl79ClPxx0MxU%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-5a2b016e-d6d6-4dd1-8d00-5cb2083eea62037d5054d164252bc/f1eccf79-78a0-4232-8e13-40f589b1e83f.zip?sv=2021-08-06&se=2024-02-06T03%3A02%3A55Z&sr=c&sp=rl&sig=JJWv7bVexOF%2BLq45sixnn9Y9tacdaBaXQdL3iECQD%2Fs%3D>)
### System.IO.Hashing.Tests.Crc64_GetCurrentHashPerf.GetCurrentHash

#### 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	ubuntu 20.04
Queue	AmpereUbuntu
Baseline	a5ff7e6bf0eeb438b62b37c6513483de2d6a7c77
Compare	6933285d2408ffc7889e0178e7f677913b6209c0
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
BinarySearch - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	14.18 ns	16.00 ns	1.13	0.04	False
Fill - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	3.66 ns	5.63 ns	1.54	0.41	False
Reverse - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	17.11 ns	33.27 ns	1.94	0.30	False
StartsWith - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	16.63 ns	18.70 ns	1.12	0.32	False
BinarySearch - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	8.42 ns	10.32 ns	1.23	0.03	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
ToUpperInPlace_Bytes - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	14.48 ns	17.28 ns	1.19	0.23	False
EqualsIgnoreCase_DifferentCase_Chars - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	52.84 ns	57.34 ns	1.09	0.07	False
ToLowerInPlace_Chars - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	26.51 ns	29.23 ns	1.10	0.08	False
ToUpperInPlace_Chars - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	26.40 ns	29.24 ns	1.11	0.09	False
ToLowerInPlace_Bytes - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	14.31 ns	17.14 ns	1.20	0.21	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
IndexOfAnyExcept - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	17.50 ns	20.43 ns	1.17	0.15	False
IndexOfAny - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	17.25 ns	18.47 ns	1.07	0.24	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
BinarySearch - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	8.76 ns	10.39 ns	1.19	0.04	False
BinarySearch - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	14.68 ns	16.38 ns	1.12	0.04	False

[Perf] Linux/arm64: 19 Regressions on 1/6/2024 6:16:24 PM #27496

Description

Run Information

Regressions in System.Memory.Span<Byte>

Repro

Payloads

System.Memory.Span<Byte>.BinarySearch(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Byte>.Fill(Size: 33)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Byte>.Reverse(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Byte>.StartsWith(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Byte>.BinarySearch(Size: 33)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Buffers.Tests.SearchValuesCharTests

Repro

Payloads

System.Buffers.Tests.SearchValuesCharTests.IndexOfAnyExcept(Values: "abcdefABCDEF0123456789")

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.IO.Hashing.Tests.Crc32_AppendPerf

Repro

Payloads

System.IO.Hashing.Tests.Crc32_AppendPerf.Append(BufferSize: 16)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Text.Perf_Ascii

Repro

Payloads

System.Text.Perf_Ascii.ToUpperInPlace_Bytes(Size: 128)

ETL Files

Histogram

JIT Disasms

System.Text.Perf_Ascii.EqualsIgnoreCase_DifferentCase_Chars(Size: 128)

ETL Files

Histogram

JIT Disasms

System.Text.Perf_Ascii.ToLowerInPlace_Chars(Size: 128)

ETL Files

Histogram

JIT Disasms

System.Text.Perf_Ascii.ToUpperInPlace_Chars(Size: 128)

ETL Files

Histogram

JIT Disasms

System.Text.Perf_Ascii.ToLowerInPlace_Bytes(Size: 128)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Buffers.Tests.SearchValuesByteTests

Repro

Payloads

System.Buffers.Tests.SearchValuesByteTests.IndexOfAnyExcept(Values: "abcdefABCDEF0123456789")

ETL Files

Histogram

JIT Disasms

System.Buffers.Tests.SearchValuesByteTests.IndexOfAny(Values: "abcdefABCDEF0123456789")

ETL Files