[Perf] Windows/x64: 5 Improvements on 8/14/2025 1:22:37 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22621
Queue | TigerWindows
Baseline | [108fa7856efcfd39bc991c2d849eabbf7ba5989c](https://github.com/dotnet/runtime/commit/108fa7856efcfd39bc991c2d849eabbf7ba5989c)
Compare | [edb570cd9e75036b6c61b201a0a9a9f2301db276](https://github.com/dotnet/runtime/commit/edb570cd9e75036b6c61b201a0a9a9f2301db276)
Diff | [Diff](https://github.com/dotnet/runtime/compare/108fa7856efcfd39bc991c2d849eabbf7ba5989c...edb570cd9e75036b6c61b201a0a9a9f2301db276)
Configs | CompilationMode:tiered, RunKind:micro


### Improvements in System.Collections.Tests.Perf_BitArray

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[BitArrayOr - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/System.Collections.Tests.Perf_BitArray.BitArrayOr(Size%3a%204).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Perf.BitArray.cs#L102-#L103>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 6.32 ns | 4.76 ns | 0.75 | 0.02 | False | | |
|<ul><li>[BitArrayAnd - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/System.Collections.Tests.Perf_BitArray.BitArrayAnd(Size%3a%204).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Perf.BitArray.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> | 6.34 ns | 4.75 ns | 0.75 | 0.02 | False | | |
|<ul><li>[BitArrayXor - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/System.Collections.Tests.Perf_BitArray.BitArrayXor(Size%3a%204).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Perf.BitArray.cs#L105-#L106>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 6.32 ns | 4.75 ns | 0.75 | 0.02 | False | | |
|<ul><li>[BitArrayLengthValueCtor - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/System.Collections.Tests.Perf_BitArray.BitArrayLengthValueCtor(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Perf.BitArray.cs#L30-#L31>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 16.16 ns | 14.59 ns | 0.90 | 0.06 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_19_2025/refs/heads/main_x64_Windows%2010.0.22621_Improvement/System.Collections.Tests.Perf_BitArray_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_19_2025/refs/heads/main_x64_Windows%2010.0.22621_Improvement/System.Collections.Tests.Perf_BitArray_002.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_19_2025/refs/heads/main_x64_Windows%2010.0.22621_Improvement/System.Collections.Tests.Perf_BitArray_003.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_19_2025/refs/heads/main_x64_Windows%2010.0.22621_Improvement/System.Collections.Tests.Perf_BitArray_004.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_19_2025/refs/heads/main_x64_Windows%2010.0.22621_Improvement/System.Collections.Tests.Perf_BitArray.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.Perf_BitArray*'
```

<details>

### System.Collections.Tests.Perf_BitArray.BitArrayOr(Size: 4)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.Tests.Perf_BitArray.BitArrayAnd(Size: 4)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.Tests.Perf_BitArray.BitArrayXor(Size: 4)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.Tests.Perf_BitArray.BitArrayLengthValueCtor(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 10.0.22621
Queue | TigerWindows
Baseline | [108fa7856efcfd39bc991c2d849eabbf7ba5989c](https://github.com/dotnet/runtime/commit/108fa7856efcfd39bc991c2d849eabbf7ba5989c)
Compare | [edb570cd9e75036b6c61b201a0a9a9f2301db276](https://github.com/dotnet/runtime/commit/edb570cd9e75036b6c61b201a0a9a9f2301db276)
Diff | [Diff](https://github.com/dotnet/runtime/compare/108fa7856efcfd39bc991c2d849eabbf7ba5989c...edb570cd9e75036b6c61b201a0a9a9f2301db276)
Configs | CompilationMode:tiered, RunKind:micro


### Improvements in System.IO.Tests.Perf_Path

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[GetFileName - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/System.IO.Tests.Perf_Path.GetFileName.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime.Extensions/Perf.Path.cs#L43-#L45>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 25.03 ns | 22.55 ns | 0.90 | 0.06 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_19_2025/refs/heads/main_x64_Windows%2010.0.22621_Improvement/System.IO.Tests.Perf_Path_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_19_2025/refs/heads/main_x64_Windows%2010.0.22621_Improvement/System.IO.Tests.Perf_Path.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.IO.Tests.Perf_Path*'
```

<details>

### System.IO.Tests.Perf_Path.GetFileName

#### 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 10.0.22621
Queue	TigerWindows
Baseline	108fa7856efcfd39bc991c2d849eabbf7ba5989c
Compare	edb570cd9e75036b6c61b201a0a9a9f2301db276
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
BitArrayOr - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	6.32 ns	4.76 ns	0.75	0.02	False
BitArrayAnd - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	6.34 ns	4.75 ns	0.75	0.02	False
BitArrayXor - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	6.32 ns	4.75 ns	0.75	0.02	False
BitArrayLengthValueCtor - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	16.16 ns	14.59 ns	0.90	0.06	False

[Perf] Windows/x64: 5 Improvements on 8/14/2025 1:22:37 PM +00:00 #60902

Description

Run Information

Improvements in System.Collections.Tests.Perf_BitArray

Repro

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

ETL Files

Histogram

JIT Disasms

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

ETL Files

Histogram

JIT Disasms

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

ETL Files

Histogram

JIT Disasms

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

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Improvements in System.IO.Tests.Perf_Path

Repro

System.IO.Tests.Perf_Path.GetFileName

ETL Files

Histogram

JIT Disasms

Docs

Metadata

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