[Perf] Windows/x64: 11 Regressions on 5/20/2025 3:20:59 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd](https://github.com/dotnet/runtime/commit/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Compare | [58c9bad814b2e3e9ee8eb58f755e08a2108e7877](https://github.com/dotnet/runtime/commit/58c9bad814b2e3e9ee8eb58f755e08a2108e7877)
Diff | [Diff](https://github.com/dotnet/runtime/compare/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd...58c9bad814b2e3e9ee8eb58f755e08a2108e7877)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Tests.Perf_Char

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Char_IsUpper - 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_Char.Char_IsUpper(input%3a%20%22Good%20afternoon%2c%20Constable!%22).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime/Perf.Char.cs#L38-#L51>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 11.05 ns | 15.62 ns | 1.41 | 0.45 | False | | |
|<ul><li>[Char_ToLowerInvariant - 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_Char.Char_ToLowerInvariant(input%3a%20%22Hello%20World!%22).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime/Perf.Char.cs#L75-#L85>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 5.44 ns | 7.55 ns | 1.39 | 0.20 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Tests.Perf_Char_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Tests.Perf_Char_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Tests.Perf_Char.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_Char*'
```

<details>

### System.Tests.Perf_Char.Char_IsUpper(input: "Good afternoon, Constable!")

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Tests.Perf_Char.Char_ToLowerInvariant(input: "Hello World!")

#### 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 | [d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd](https://github.com/dotnet/runtime/commit/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Compare | [58c9bad814b2e3e9ee8eb58f755e08a2108e7877](https://github.com/dotnet/runtime/commit/58c9bad814b2e3e9ee8eb58f755e08a2108e7877)
Diff | [Diff](https://github.com/dotnet/runtime/compare/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd...58c9bad814b2e3e9ee8eb58f755e08a2108e7877)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in Struct.GSeq

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[FilterSkipMapSum - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22631/ViperWindows/Struct.GSeq.FilterSkipMapSum.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/Struct/GSeq.cs#L24-#L39>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 6.83 μs | 7.54 μs | 1.10 | 0.06 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/Struct.GSeq_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/Struct.GSeq.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 'Struct.GSeq*'
```

<details>

### Struct.GSeq.FilterSkipMapSum

#### 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 | [d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd](https://github.com/dotnet/runtime/commit/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Compare | [58c9bad814b2e3e9ee8eb58f755e08a2108e7877](https://github.com/dotnet/runtime/commit/58c9bad814b2e3e9ee8eb58f755e08a2108e7877)
Diff | [Diff](https://github.com/dotnet/runtime/compare/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd...58c9bad814b2e3e9ee8eb58f755e08a2108e7877)
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> | 42.07 ns | 59.02 ns | 1.40 | 0.02 | False | | |
|<ul><li>[SingleWithPredicate_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.SingleWithPredicate_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#L144-#L146>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 32.97 ns | 55.58 ns | 1.69 | 0.11 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_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/05_27_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/05_27_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.SingleWithPredicate_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 | [d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd](https://github.com/dotnet/runtime/commit/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Compare | [58c9bad814b2e3e9ee8eb58f755e08a2108e7877](https://github.com/dotnet/runtime/commit/58c9bad814b2e3e9ee8eb58f755e08a2108e7877)
Diff | [Diff](https://github.com/dotnet/runtime/compare/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd...58c9bad814b2e3e9ee8eb58f755e08a2108e7877)
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> | 467.49 ns | 546.43 ns | 1.17 | 0.02 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/System.Numerics.Tests.Perf_VectorConvert_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_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



### 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 | [d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd](https://github.com/dotnet/runtime/commit/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Compare | [58c9bad814b2e3e9ee8eb58f755e08a2108e7877](https://github.com/dotnet/runtime/commit/58c9bad814b2e3e9ee8eb58f755e08a2108e7877)
Diff | [Diff](https://github.com/dotnet/runtime/compare/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd...58c9bad814b2e3e9ee8eb58f755e08a2108e7877)
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=H4sIAAAAAAAACl1Ry27bMBC8G/A/bHyhjSqWaqdI6oJAm9RoiyKXxEjOjLiyWFCkQS4bG03/vUtJvvSyy8fscGZokYAwEkj4LG7R1W0k73DZL38MbbvcMUJ8mk4so1VDGBiuFSGZDueravXhslpfrq531cdNdbO5ulper9er99XNu6raVNVinAx48DwotCeHVIbk8vyZ9yUofivfB2xi2aLSseyUcWdA7V1j9vnlk1Odqed/xJ3vDsYqMt7de41iA4IMBtSiAPGQ3E/jdD5kdPDibxbyDem7YY/B1Mp+VaSeDbWZRwUTvYvznIbMpRisyr4WvXqZSzFKlUMrRmFyaIvp5A0Owf/CmuARg8FYwG0yVu/Y7COp7lDAk7IJZU71znMKGB4wJktffmNQe5xOyvINXls2MjLABZMTZxFhNiO/PdY2aZzNoCxhe2RKi+AbaIxlLuP24BN/FMR+OAsK6DT/Ws67blUgeGXXMB8A8izzWHubOif/l3sazqPsdTOODFmUguNDTvo0bu9RxRSwQ0di8Q8J0vFNWQIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=>)</li></ul> | 226.23 ms | 292.99 ms | 1.30 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_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/05_27_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 | [d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd](https://github.com/dotnet/runtime/commit/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Compare | [58c9bad814b2e3e9ee8eb58f755e08a2108e7877](https://github.com/dotnet/runtime/commit/58c9bad814b2e3e9ee8eb58f755e08a2108e7877)
Diff | [Diff](https://github.com/dotnet/runtime/compare/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd...58c9bad814b2e3e9ee8eb58f755e08a2108e7877)
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> | 451.57 ns | 569.85 ns | 1.26 | 0.06 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_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/05_27_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 | [d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd](https://github.com/dotnet/runtime/commit/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Compare | [58c9bad814b2e3e9ee8eb58f755e08a2108e7877](https://github.com/dotnet/runtime/commit/58c9bad814b2e3e9ee8eb58f755e08a2108e7877)
Diff | [Diff](https://github.com/dotnet/runtime/compare/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd...58c9bad814b2e3e9ee8eb58f755e08a2108e7877)
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>[SumS16Span - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22631/ViperWindows/Loops.StrengthReduction.SumS16Span.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/Loops/StrengthReduction.cs#L383-#L387>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 4.29 μs | 5.42 μs | 1.26 | 0.02 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/Loops.StrengthReduction_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_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.SumS16Span

#### 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 | [d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd](https://github.com/dotnet/runtime/commit/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Compare | [58c9bad814b2e3e9ee8eb58f755e08a2108e7877](https://github.com/dotnet/runtime/commit/58c9bad814b2e3e9ee8eb58f755e08a2108e7877)
Diff | [Diff](https://github.com/dotnet/runtime/compare/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd...58c9bad814b2e3e9ee8eb58f755e08a2108e7877)
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> | 12.47 ns | 13.53 ns | 1.08 | 0.03 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_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/05_27_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 | [d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd](https://github.com/dotnet/runtime/commit/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Compare | [58c9bad814b2e3e9ee8eb58f755e08a2108e7877](https://github.com/dotnet/runtime/commit/58c9bad814b2e3e9ee8eb58f755e08a2108e7877)
Diff | [Diff](https://github.com/dotnet/runtime/compare/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd...58c9bad814b2e3e9ee8eb58f755e08a2108e7877)
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> | 410.01 ns | 545.25 ns | 1.33 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_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/05_27_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>

Name	Value
Architecture	x64
OS	Windows 10.0.22631
Queue	ViperWindows
Baseline	d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd
Compare	58c9bad814b2e3e9ee8eb58f755e08a2108e7877
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Char_IsUpper - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	11.05 ns	15.62 ns	1.41	0.45	False
Char_ToLowerInvariant - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	5.44 ns	7.55 ns	1.39	0.20	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	42.07 ns	59.02 ns	1.40	0.02	False
SingleWithPredicate_LastElementMatches - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	32.97 ns	55.58 ns	1.69	0.11	False

[Perf] Windows/x64: 11 Regressions on 5/20/2025 3:20:59 AM +00:00 #56200

Description

Run Information

Regressions in System.Tests.Perf_Char

Repro

System.Tests.Perf_Char.Char_IsUpper(input: "Good afternoon, Constable!")

ETL Files

Histogram

JIT Disasms

System.Tests.Perf_Char.Char_ToLowerInvariant(input: "Hello World!")

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in Struct.GSeq

Repro

Struct.GSeq.FilterSkipMapSum

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.SingleWithPredicate_LastElementMatches(input: Array)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Numerics.Tests.Perf_VectorConvert

Repro

System.Numerics.Tests.Perf_VectorConvert.Convert_float_int

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in Benchstone.BenchI.BenchE

Repro

Benchstone.BenchI.BenchE.Test

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Globalization.Tests.StringSearch

Repro

System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (en-US, OrdinalIgnoreCase, False))

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in Loops.StrengthReduction

Repro

Loops.StrengthReduction.SumS16Span

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Perf_Convert

Repro

System.Perf_Convert.ChangeType

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Buffers.Binary.Tests.BinaryReadAndWriteTests

Repro

System.Buffers.Binary.Tests.BinaryReadAndWriteTests.MeasureReverseUsingNtoH

ETL Files

Histogram