[Perf] Windows/x64: 20 Regressions on 4/21/2025 10:30:40 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [c0c5520b7b79747ca903a0ca59125bf3dede1307](https://github.com/dotnet/runtime/commit/c0c5520b7b79747ca903a0ca59125bf3dede1307)
Compare | [62db69b2e1c20425ce9aac6a732e7f80087d70df](https://github.com/dotnet/runtime/commit/62db69b2e1c20425ce9aac6a732e7f80087d70df)
Diff | [Diff](https://github.com/dotnet/runtime/compare/c0c5520b7b79747ca903a0ca59125bf3dede1307...62db69b2e1c20425ce9aac6a732e7f80087d70df)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in Loops.StrengthReduction

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[SumS29Span - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22631/ViperWindows/Loops.StrengthReduction.SumS29Span.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/Loops/StrengthReduction.cs#L442-#L449>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 4.28 μs | 5.43 μs | 1.27 | 0.01 | False | | |
|<ul><li>[SumIntsSpan - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22631/ViperWindows/Loops.StrengthReduction.SumIntsSpan.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/Loops/StrengthReduction.cs#L105-#L109>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 4.40 μs | 5.42 μs | 1.23 | 0.08 | False | | |
|<ul><li>[SumShortsSpan - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22631/ViperWindows/Loops.StrengthReduction.SumShortsSpan.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/Loops/StrengthReduction.cs#L48-#L52>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 4.87 μs | 5.42 μs | 1.11 | 0.12 | False | | |
|<ul><li>[SumLongsSpan - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22631/ViperWindows/Loops.StrengthReduction.SumLongsSpan.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/Loops/StrengthReduction.cs#L160-#L164>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 4.32 μs | 5.43 μs | 1.25 | 0.01 | False | | |
|<ul><li>[SumS3Span - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22631/ViperWindows/Loops.StrengthReduction.SumS3Span.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/Loops/StrengthReduction.cs#L215-#L219>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 4.23 μs | 5.42 μs | 1.28 | 0.15 | False | | |
|<ul><li>[SumS8Span - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22631/ViperWindows/Loops.StrengthReduction.SumS8Span.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/Loops/StrengthReduction.cs#L271-#L275>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 4.31 μs | 5.42 μs | 1.26 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/Loops.StrengthReduction_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/Loops.StrengthReduction_002.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/Loops.StrengthReduction_003.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/Loops.StrengthReduction_004.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/Loops.StrengthReduction_005.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/Loops.StrengthReduction_006.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/Loops.StrengthReduction.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 'Loops.StrengthReduction*'
```

<details>

### Loops.StrengthReduction.SumS29Span

#### ETL Files

#### Histogram

#### JIT Disasms

### Loops.StrengthReduction.SumIntsSpan

#### ETL Files

#### Histogram

#### JIT Disasms

### Loops.StrengthReduction.SumShortsSpan

#### ETL Files

#### Histogram

#### JIT Disasms

### Loops.StrengthReduction.SumLongsSpan

#### ETL Files

#### Histogram

#### JIT Disasms

### Loops.StrengthReduction.SumS3Span

#### ETL Files

#### Histogram

#### JIT Disasms

### Loops.StrengthReduction.SumS8Span

#### 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 | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [c0c5520b7b79747ca903a0ca59125bf3dede1307](https://github.com/dotnet/runtime/commit/c0c5520b7b79747ca903a0ca59125bf3dede1307)
Compare | [62db69b2e1c20425ce9aac6a732e7f80087d70df](https://github.com/dotnet/runtime/commit/62db69b2e1c20425ce9aac6a732e7f80087d70df)
Diff | [Diff](https://github.com/dotnet/runtime/compare/c0c5520b7b79747ca903a0ca59125bf3dede1307...62db69b2e1c20425ce9aac6a732e7f80087d70df)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Tests.Perf_Enum

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ToString_Flags - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22631/ViperWindows/System.Tests.Perf_Enum.ToString_Flags(value%3a%2032).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime/Perf.Enum.cs#L33-#L40>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 26.96 ns | 38.21 ns | 1.42 | 0.74 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Tests.Perf_Enum_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Tests.Perf_Enum.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.Tests.Perf_Enum*'
```

<details>

### System.Tests.Perf_Enum.ToString_Flags(value: 32)

#### 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 | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [c0c5520b7b79747ca903a0ca59125bf3dede1307](https://github.com/dotnet/runtime/commit/c0c5520b7b79747ca903a0ca59125bf3dede1307)
Compare | [62db69b2e1c20425ce9aac6a732e7f80087d70df](https://github.com/dotnet/runtime/commit/62db69b2e1c20425ce9aac6a732e7f80087d70df)
Diff | [Diff](https://github.com/dotnet/runtime/compare/c0c5520b7b79747ca903a0ca59125bf3dede1307...62db69b2e1c20425ce9aac6a732e7f80087d70df)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.IterateForEachNonGeneric&lt;Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Queue - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22631/ViperWindows/System.Collections.IterateForEachNonGeneric(Int32).Queue(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Iterate/IterateForEachNonGeneric.cs#L54-#L62>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.54 μs | 1.68 μs | 1.09 | 0.00 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Collections.IterateForEachNonGeneric%28Int32%29_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Collections.IterateForEachNonGeneric%28Int32%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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.IterateForEachNonGeneric&lt;Int32&gt;*'
```

<details>

### System.Collections.IterateForEachNonGeneric&lt;Int32&gt;.Queue(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 | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [c0c5520b7b79747ca903a0ca59125bf3dede1307](https://github.com/dotnet/runtime/commit/c0c5520b7b79747ca903a0ca59125bf3dede1307)
Compare | [62db69b2e1c20425ce9aac6a732e7f80087d70df](https://github.com/dotnet/runtime/commit/62db69b2e1c20425ce9aac6a732e7f80087d70df)
Diff | [Diff](https://github.com/dotnet/runtime/compare/c0c5520b7b79747ca903a0ca59125bf3dede1307...62db69b2e1c20425ce9aac6a732e7f80087d70df)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Linq.Tests.Perf_Enumerable

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Count - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22631/ViperWindows/System.Linq.Tests.Perf_Enumerable.Count(input%3a%20IEnumerable).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Linq/Perf.Enumerable.cs#L344-#L346>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 41.48 ns | 57.28 ns | 1.38 | 0.01 | False | | |
|<ul><li>[WhereSingleOrDefault_LastElementMatches - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22631/ViperWindows/System.Linq.Tests.Perf_Enumerable.WhereSingleOrDefault_LastElementMatches(input%3a%20Array).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Linq/Perf.Enumerable.cs#L130-#L132>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACl1SwW7bMAy9B8g/cLkowVzbNbaizSBgXRtswBpsaIL1WKg2HWuQpUyi1gRr/71U4lx2oSCKfHx8TwYJCAOBhM9itQ+EfX6n7Z98zcmQ/0TfPi5s7NGrJ4P5Q4ceV9puDP7wt9iqaOjxTgVaGOzR0lJR3WGYaruNNIdr79V+Jj6NR4bnqJbQ86BGEZLucVqV1cezsjqrLtfn5by8mH+o8urqsrq4On9fcqKcDZ0et44bRePIIhU+2tR/wn3yytZdevfYhqJD1YSiV9qeCmpnW71Jk/dW9bqe/hM3rt9qo0g7u3QNijkI0rxbIzIQ99F+17ZJSa72TrwmIl+RvulAzutamVtF6kFTl3CU18HZME06yhSy46ryELMDe5lCNlCVxyMbiMnjMRuPXmDr3W+sCVboNYYMvkRtmjUvuyLVbzP4pUxEmcy5cawC+nsM7MH1XzZog+NRUbzAczJpQIB3DE6sRYDJhNxiV5vY4GQCRQGLHUMaBNdCqw1jsa/gIhsF4dCcCHm0DbuW9K475QmeeWuYHgvkieaudib2Vv5Pd3/MB3ngzXWkyaAULB+y0vvhukQVoj/8IDF7A+MqLsmTAgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=>)</li></ul> | 74.19 ns | 85.28 ns | 1.15 | 0.30 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Linq.Tests.Perf_Enumerable_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Linq.Tests.Perf_Enumerable_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Linq.Tests.Perf_Enumerable.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.Linq.Tests.Perf_Enumerable*'
```

<details>

### System.Linq.Tests.Perf_Enumerable.Count(input: IEnumerable)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Linq.Tests.Perf_Enumerable.WhereSingleOrDefault_LastElementMatches(input: Array)

#### 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 | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [c0c5520b7b79747ca903a0ca59125bf3dede1307](https://github.com/dotnet/runtime/commit/c0c5520b7b79747ca903a0ca59125bf3dede1307)
Compare | [62db69b2e1c20425ce9aac6a732e7f80087d70df](https://github.com/dotnet/runtime/commit/62db69b2e1c20425ce9aac6a732e7f80087d70df)
Diff | [Diff](https://github.com/dotnet/runtime/compare/c0c5520b7b79747ca903a0ca59125bf3dede1307...62db69b2e1c20425ce9aac6a732e7f80087d70df)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Memory.Span&lt;Int32&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_x64_Windows 10.0.22631/ViperWindows/System.Memory.Span(Int32).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> | 4.70 ns | 6.04 ns | 1.29 | 0.06 | False | | |
|<ul><li>[BinarySearch - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22631/ViperWindows/System.Memory.Span(Int32).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> | 7.96 ns | 10.37 ns | 1.30 | 0.19 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Memory.Span%28Int32%29_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Memory.Span%28Int32%29_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Memory.Span%28Int32%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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Memory.Span&lt;Int32&gt;*'
```

<details>

### System.Memory.Span&lt;Int32&gt;.BinarySearch(Size: 33)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Int32&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 | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [c0c5520b7b79747ca903a0ca59125bf3dede1307](https://github.com/dotnet/runtime/commit/c0c5520b7b79747ca903a0ca59125bf3dede1307)
Compare | [62db69b2e1c20425ce9aac6a732e7f80087d70df](https://github.com/dotnet/runtime/commit/62db69b2e1c20425ce9aac6a732e7f80087d70df)
Diff | [Diff](https://github.com/dotnet/runtime/compare/c0c5520b7b79747ca903a0ca59125bf3dede1307...62db69b2e1c20425ce9aac6a732e7f80087d70df)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Numerics.Tests.Perf_VectorConvert

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Convert_float_int - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22631/ViperWindows/System.Numerics.Tests.Perf_VectorConvert.Convert_float_int.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Numerics.Vectors/Perf_VectorConvert.cs#L32-#L33>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 465.86 ns | 546.47 ns | 1.17 | 0.01 | False | | |
|<ul><li>[Widen_ushort - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22631/ViperWindows/System.Numerics.Tests.Perf_VectorConvert.Widen_ushort.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Numerics.Vectors/Perf_VectorConvert.cs#L93-#L94>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 432.02 ns | 546.03 ns | 1.26 | 0.29 | False | | |
|<ul><li>[Widen_uint - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22631/ViperWindows/System.Numerics.Tests.Perf_VectorConvert.Widen_uint.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Numerics.Vectors/Perf_VectorConvert.cs#L99-#L100>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 432.69 ns | 544.68 ns | 1.26 | 0.25 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Numerics.Tests.Perf_VectorConvert_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Numerics.Tests.Perf_VectorConvert_002.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Numerics.Tests.Perf_VectorConvert_003.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Numerics.Tests.Perf_VectorConvert.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.Numerics.Tests.Perf_VectorConvert*'
```

<details>

### System.Numerics.Tests.Perf_VectorConvert.Convert_float_int

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Numerics.Tests.Perf_VectorConvert.Widen_ushort

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Numerics.Tests.Perf_VectorConvert.Widen_uint

#### 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 | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [c0c5520b7b79747ca903a0ca59125bf3dede1307](https://github.com/dotnet/runtime/commit/c0c5520b7b79747ca903a0ca59125bf3dede1307)
Compare | [62db69b2e1c20425ce9aac6a732e7f80087d70df](https://github.com/dotnet/runtime/commit/62db69b2e1c20425ce9aac6a732e7f80087d70df)
Diff | [Diff](https://github.com/dotnet/runtime/compare/c0c5520b7b79747ca903a0ca59125bf3dede1307...62db69b2e1c20425ce9aac6a732e7f80087d70df)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in Benchstone.BenchI.BenchE

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Test - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22631/ViperWindows/Benchstone.BenchI.BenchE.Test.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/Benchstones/BenchI/BenchE.cs#L70-#L86>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 226.25 ms | 294.50 ms | 1.30 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/Benchstone.BenchI.BenchE_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/Benchstone.BenchI.BenchE.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 'Benchstone.BenchI.BenchE*'
```

<details>

### Benchstone.BenchI.BenchE.Test

#### 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 | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [c0c5520b7b79747ca903a0ca59125bf3dede1307](https://github.com/dotnet/runtime/commit/c0c5520b7b79747ca903a0ca59125bf3dede1307)
Compare | [62db69b2e1c20425ce9aac6a732e7f80087d70df](https://github.com/dotnet/runtime/commit/62db69b2e1c20425ce9aac6a732e7f80087d70df)
Diff | [Diff](https://github.com/dotnet/runtime/compare/c0c5520b7b79747ca903a0ca59125bf3dede1307...62db69b2e1c20425ce9aac6a732e7f80087d70df)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Globalization.Tests.StringSearch

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[LastIndexOf_Word_NotFound - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22631/ViperWindows/System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options%3a%20(en-US%2c%20OrdinalIgnoreCase%2c%20False)).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Globalization/StringSearch.cs#L106-#L108>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 450.57 ns | 570.05 ns | 1.27 | 0.11 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Globalization.Tests.StringSearch_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Globalization.Tests.StringSearch.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.Globalization.Tests.StringSearch*'
```

<details>

### System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (en-US, OrdinalIgnoreCase, False))

#### 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 | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [c0c5520b7b79747ca903a0ca59125bf3dede1307](https://github.com/dotnet/runtime/commit/c0c5520b7b79747ca903a0ca59125bf3dede1307)
Compare | [62db69b2e1c20425ce9aac6a732e7f80087d70df](https://github.com/dotnet/runtime/commit/62db69b2e1c20425ce9aac6a732e7f80087d70df)
Diff | [Diff](https://github.com/dotnet/runtime/compare/c0c5520b7b79747ca903a0ca59125bf3dede1307...62db69b2e1c20425ce9aac6a732e7f80087d70df)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Perf_Convert

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ChangeType - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22631/ViperWindows/System.Perf_Convert.ChangeType.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime.Extensions/Perf.Convert.cs#L36-#L37>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 12.46 ns | 13.57 ns | 1.09 | 0.03 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Perf_Convert_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Perf_Convert.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.Perf_Convert*'
```

<details>

### System.Perf_Convert.ChangeType

#### 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 | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [c0c5520b7b79747ca903a0ca59125bf3dede1307](https://github.com/dotnet/runtime/commit/c0c5520b7b79747ca903a0ca59125bf3dede1307)
Compare | [62db69b2e1c20425ce9aac6a732e7f80087d70df](https://github.com/dotnet/runtime/commit/62db69b2e1c20425ce9aac6a732e7f80087d70df)
Diff | [Diff](https://github.com/dotnet/runtime/compare/c0c5520b7b79747ca903a0ca59125bf3dede1307...62db69b2e1c20425ce9aac6a732e7f80087d70df)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Buffers.Binary.Tests.BinaryReadAndWriteTests

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[MeasureReverseUsingNtoH - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22631/ViperWindows/System.Buffers.Binary.Tests.BinaryReadAndWriteTests.MeasureReverseUsingNtoH.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Buffers/BinaryReadAndWriteTests.cs#L197-#L209>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 409.54 ns | 545.27 ns | 1.33 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Buffers.Binary.Tests.BinaryReadAndWriteTests_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Buffers.Binary.Tests.BinaryReadAndWriteTests.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.Buffers.Binary.Tests.BinaryReadAndWriteTests*'
```

<details>

### System.Buffers.Binary.Tests.BinaryReadAndWriteTests.MeasureReverseUsingNtoH

#### 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 | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [c0c5520b7b79747ca903a0ca59125bf3dede1307](https://github.com/dotnet/runtime/commit/c0c5520b7b79747ca903a0ca59125bf3dede1307)
Compare | [62db69b2e1c20425ce9aac6a732e7f80087d70df](https://github.com/dotnet/runtime/commit/62db69b2e1c20425ce9aac6a732e7f80087d70df)
Diff | [Diff](https://github.com/dotnet/runtime/compare/c0c5520b7b79747ca903a0ca59125bf3dede1307...62db69b2e1c20425ce9aac6a732e7f80087d70df)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.Tests.Add_Remove_SteadyState&lt;String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Queue - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22631/ViperWindows/System.Collections.Tests.Add_Remove_SteadyState(String).Queue(Count%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/AddRemove/AddRemoveSteadyState.cs#L63-#L68>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 10.15 ns | 17.10 ns | 1.68 | 0.39 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Collections.Tests.Add_Remove_SteadyState%28String%29_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Collections.Tests.Add_Remove_SteadyState%28String%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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.Tests.Add_Remove_SteadyState&lt;String&gt;*'
```

<details>

### System.Collections.Tests.Add_Remove_SteadyState&lt;String&gt;.Queue(Count: 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>

Name	Value
Architecture	x64
OS	Windows 10.0.22631
Queue	ViperWindows
Baseline	c0c5520b7b79747ca903a0ca59125bf3dede1307
Compare	62db69b2e1c20425ce9aac6a732e7f80087d70df
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
SumS29Span - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	4.28 μs	5.43 μs	1.27	0.01	False
SumIntsSpan - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	4.40 μs	5.42 μs	1.23	0.08	False
SumShortsSpan - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	4.87 μs	5.42 μs	1.11	0.12	False
SumLongsSpan - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	4.32 μs	5.43 μs	1.25	0.01	False
SumS3Span - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	4.23 μs	5.42 μs	1.28	0.15	False
SumS8Span - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	4.31 μs	5.42 μs	1.26	0.01	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Count - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	41.48 ns	57.28 ns	1.38	0.01	False
WhereSingleOrDefault_LastElementMatches - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	74.19 ns	85.28 ns	1.15	0.30	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	4.70 ns	6.04 ns	1.29	0.06	False
BinarySearch - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	7.96 ns	10.37 ns	1.30	0.19	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
Convert_float_int - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	465.86 ns	546.47 ns	1.17	0.01	False
Widen_ushort - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	432.02 ns	546.03 ns	1.26	0.29	False
Widen_uint - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	432.69 ns	544.68 ns	1.26	0.25	False

[Perf] Windows/x64: 20 Regressions on 4/21/2025 10:30:40 PM +00:00 #54612

Description

Run Information

Regressions in Loops.StrengthReduction

Repro

Loops.StrengthReduction.SumS29Span

ETL Files

Histogram

JIT Disasms

Loops.StrengthReduction.SumIntsSpan

ETL Files

Histogram

JIT Disasms

Loops.StrengthReduction.SumShortsSpan

ETL Files

Histogram

JIT Disasms

Loops.StrengthReduction.SumLongsSpan

ETL Files

Histogram

JIT Disasms

Loops.StrengthReduction.SumS3Span

ETL Files

Histogram

JIT Disasms

Loops.StrengthReduction.SumS8Span

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Tests.Perf_Enum

Repro

System.Tests.Perf_Enum.ToString_Flags(value: 32)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Collections.IterateForEachNonGeneric<Int32>

Repro

System.Collections.IterateForEachNonGeneric<Int32>.Queue(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Linq.Tests.Perf_Enumerable

Repro

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

ETL Files

Histogram

JIT Disasms

System.Linq.Tests.Perf_Enumerable.WhereSingleOrDefault_LastElementMatches(input: Array)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Memory.Span<Int32>

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System.Memory.Span<Int32>.BinarySearch(Size: 33)

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System.Memory.Span<Int32>.BinarySearch(Size: 512)

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Regressions in System.Numerics.Tests.Perf_VectorConvert

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System.Numerics.Tests.Perf_VectorConvert.Convert_float_int

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System.Numerics.Tests.Perf_VectorConvert.Widen_ushort

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