[Perf] Windows/x64: 10 Regressions on 8/22/2025 12:26:37 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22621
Queue | TigerWindows
Baseline | [4b2a7d53685ef35f645f6de77c105d4c6743b460](https://github.com/dotnet/runtime/commit/4b2a7d53685ef35f645f6de77c105d4c6743b460)
Compare | [bd94b146570c5f3057f29e40de901ca5154b7a92](https://github.com/dotnet/runtime/commit/bd94b146570c5f3057f29e40de901ca5154b7a92)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4b2a7d53685ef35f645f6de77c105d4c6743b460...bd94b146570c5f3057f29e40de901ca5154b7a92)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Text.Json.Tests.Perf_Strings

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[WriteStringsUtf8 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/System.Text.Json.Tests.Perf_Strings.WriteStringsUtf8(Formatted%3a%20True%2c%20SkipValidation%3a%20False%2c%20Escaped%3a%20OneEscaped).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Utf8JsonWriter/Perf.Strings.cs#L82-#L98>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 11.47 ms | 12.55 ms | 1.09 | 0.11 | False | | |
|<ul><li>[WriteStringsUtf8 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/System.Text.Json.Tests.Perf_Strings.WriteStringsUtf8(Formatted%3a%20True%2c%20SkipValidation%3a%20True%2c%20Escaped%3a%20OneEscaped).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Utf8JsonWriter/Perf.Strings.cs#L82-#L98>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 11.21 ms | 13.48 ms | 1.20 | 0.10 | False | | |
|<ul><li>[WriteStringsUtf16 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted%3a%20True%2c%20SkipValidation%3a%20True%2c%20Escaped%3a%20OneEscaped).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Utf8JsonWriter/Perf.Strings.cs#L100-#L116>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACl2RUW/TMBDH3yv1Oxx9cSuyJutE6YosAaOAQBNoLewRmeTSGhw7Ol9YK7bvzrlNX3g525e7f373P4cMjJFBw2u1PkTGZrrBPU8/xeDlFjlOvyLVP9ZM1m/j9J4sY//4xvXlfPw+UGOYsVrChjrMYP3btt+Ns5VhG/w5u4qlaVPRF4/9faJeDQdOCEzNSIIgHci2wfGsmL24KOYXs/mmWCwv58url9PForgu5tfPi2JZFJO+k7AN0qiqwB45p86n/rPuTzK+3KXvhHXMd2iqmDfG+nNBGXxtt+nPB28aW47/qpvQtNYd0W9DhWoJii0SVioDddf5z9ZXKSnVFNRTAvmA/NFGDmRL494ZNveWd0nHkBUb4zg5rFPITqPqY8yO9DqFrEfVpyPrwfTpmAwHj9BS+IUlwxrJYszgbWddtZFh12yaNgNxvEOdNnYTxAWkO4yd4zd/kMwWh4M8f4SHnQzSK8AzEWfxIsJoxGG1L11X4WgEeQ6rvUg6hFBDbZ1oybYhdLIoiMfmBEToK9la8rvcGWJ4kKlhfCrQZ8x9GVzXeP0/7uGUj/rILXVs2aFWYh+K04f+eYsmdoQNelaTfx49TrCtAgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=>)</li></ul> | 14.27 ms | 16.56 ms | 1.16 | 0.05 | False | | |
|<ul><li>[WriteStringsUtf16 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted%3a%20False%2c%20SkipValidation%3a%20False%2c%20Escaped%3a%20OneEscaped).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Utf8JsonWriter/Perf.Strings.cs#L100-#L116>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 13.68 ms | 15.97 ms | 1.17 | 0.03 | False | | |
|<ul><li>[WriteStringsUtf16 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted%3a%20False%2c%20SkipValidation%3a%20True%2c%20Escaped%3a%20OneEscaped).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Utf8JsonWriter/Perf.Strings.cs#L100-#L116>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 13.54 ms | 14.73 ms | 1.09 | 0.02 | False | | |
|<ul><li>[WriteStringsUtf16 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted%3a%20True%2c%20SkipValidation%3a%20False%2c%20Escaped%3a%20OneEscaped).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Utf8JsonWriter/Perf.Strings.cs#L100-#L116>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 14.42 ms | 16.87 ms | 1.17 | 0.03 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_26_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Text.Json.Tests.Perf_Strings_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_26_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Text.Json.Tests.Perf_Strings_002.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_26_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Text.Json.Tests.Perf_Strings_003.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_26_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Text.Json.Tests.Perf_Strings_004.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_26_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Text.Json.Tests.Perf_Strings_005.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_26_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Text.Json.Tests.Perf_Strings_006.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_26_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Text.Json.Tests.Perf_Strings.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.Json.Tests.Perf_Strings*'
```

<details>

### System.Text.Json.Tests.Perf_Strings.WriteStringsUtf8(Formatted: True, SkipValidation: False, Escaped: OneEscaped)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Tests.Perf_Strings.WriteStringsUtf8(Formatted: True, SkipValidation: True, Escaped: OneEscaped)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted: True, SkipValidation: True, Escaped: OneEscaped)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted: False, SkipValidation: False, Escaped: OneEscaped)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted: False, SkipValidation: True, Escaped: OneEscaped)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted: True, SkipValidation: False, Escaped: OneEscaped)

#### 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 | [4b2a7d53685ef35f645f6de77c105d4c6743b460](https://github.com/dotnet/runtime/commit/4b2a7d53685ef35f645f6de77c105d4c6743b460)
Compare | [bd94b146570c5f3057f29e40de901ca5154b7a92](https://github.com/dotnet/runtime/commit/bd94b146570c5f3057f29e40de901ca5154b7a92)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4b2a7d53685ef35f645f6de77c105d4c6743b460...bd94b146570c5f3057f29e40de901ca5154b7a92)
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>[ContainsAny - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/System.Buffers.Tests.SearchValuesCharTests.ContainsAny(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#L47-#L48>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 6.07 ns | 8.60 ns | 1.42 | 0.16 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_26_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Buffers.Tests.SearchValuesCharTests_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_26_2025/refs/heads/main_x64_Windows%2010.0.22621_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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Buffers.Tests.SearchValuesCharTests*'
```

<details>

### System.Buffers.Tests.SearchValuesCharTests.ContainsAny(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 | x64
OS | Windows 10.0.22621
Queue | TigerWindows
Baseline | [4b2a7d53685ef35f645f6de77c105d4c6743b460](https://github.com/dotnet/runtime/commit/4b2a7d53685ef35f645f6de77c105d4c6743b460)
Compare | [bd94b146570c5f3057f29e40de901ca5154b7a92](https://github.com/dotnet/runtime/commit/bd94b146570c5f3057f29e40de901ca5154b7a92)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4b2a7d53685ef35f645f6de77c105d4c6743b460...bd94b146570c5f3057f29e40de901ca5154b7a92)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Text.Perf_Utf8Encoding

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[GetByteCount - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/System.Text.Perf_Utf8Encoding.GetByteCount(Input%3a%20EnglishAllAscii).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Encoding/Perf.Utf8Encoding.cs#L26-#L28>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 9.23 μs | 9.91 μs | 1.07 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_26_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Text.Perf_Utf8Encoding_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_26_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Text.Perf_Utf8Encoding.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.Perf_Utf8Encoding*'
```

<details>

### System.Text.Perf_Utf8Encoding.GetByteCount(Input: EnglishAllAscii)

#### 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 | [4b2a7d53685ef35f645f6de77c105d4c6743b460](https://github.com/dotnet/runtime/commit/4b2a7d53685ef35f645f6de77c105d4c6743b460)
Compare | [bd94b146570c5f3057f29e40de901ca5154b7a92](https://github.com/dotnet/runtime/commit/bd94b146570c5f3057f29e40de901ca5154b7a92)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4b2a7d53685ef35f645f6de77c105d4c6743b460...bd94b146570c5f3057f29e40de901ca5154b7a92)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in Microsoft.Extensions.DependencyInjection.GetService

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ServiceScopeProvider - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/Microsoft.Extensions.DependencyInjection.GetService.ServiceScopeProvider.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/Microsoft.Extensions.DependencyInjection/GetServiceBenchmark.cs#L117-#L118>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 14.01 ns | 15.47 ns | 1.10 | 0.44 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_26_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/Microsoft.Extensions.DependencyInjection.GetService_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_26_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/Microsoft.Extensions.DependencyInjection.GetService.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 'Microsoft.Extensions.DependencyInjection.GetService*'
```

<details>

### Microsoft.Extensions.DependencyInjection.GetService.ServiceScopeProvider

#### 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 | [4b2a7d53685ef35f645f6de77c105d4c6743b460](https://github.com/dotnet/runtime/commit/4b2a7d53685ef35f645f6de77c105d4c6743b460)
Compare | [bd94b146570c5f3057f29e40de901ca5154b7a92](https://github.com/dotnet/runtime/commit/bd94b146570c5f3057f29e40de901ca5154b7a92)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4b2a7d53685ef35f645f6de77c105d4c6743b460...bd94b146570c5f3057f29e40de901ca5154b7a92)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Text.Json.Node.Tests.Perf_ParseThenWrite

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ParseThenWrite - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/System.Text.Json.Node.Tests.Perf_ParseThenWrite.ParseThenWrite(IsDataIndented%3a%20True%2c%20TestCase%3a%20Json400KB).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Node/ParseThenWrite.cs#L59-#L88>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 5.35 ms | 6.18 ms | 1.16 | 0.51 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_26_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Text.Json.Node.Tests.Perf_ParseThenWrite_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_26_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Text.Json.Node.Tests.Perf_ParseThenWrite.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.Json.Node.Tests.Perf_ParseThenWrite*'
```

<details>

### System.Text.Json.Node.Tests.Perf_ParseThenWrite.ParseThenWrite(IsDataIndented: True, TestCase: Json400KB)

#### 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	4b2a7d53685ef35f645f6de77c105d4c6743b460
Compare	bd94b146570c5f3057f29e40de901ca5154b7a92
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
WriteStringsUtf8 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	11.47 ms	12.55 ms	1.09	0.11	False
WriteStringsUtf8 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	11.21 ms	13.48 ms	1.20	0.10	False
WriteStringsUtf16 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	14.27 ms	16.56 ms	1.16	0.05	False
WriteStringsUtf16 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	13.68 ms	15.97 ms	1.17	0.03	False
WriteStringsUtf16 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	13.54 ms	14.73 ms	1.09	0.02	False
WriteStringsUtf16 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	14.42 ms	16.87 ms	1.17	0.03	False

Uh oh!

[Perf] Windows/x64: 10 Regressions on 8/22/2025 12:26:37 AM +00:00 #119106

Description

Run Information

Regressions in System.Text.Json.Tests.Perf_Strings

Repro

System.Text.Json.Tests.Perf_Strings.WriteStringsUtf8(Formatted: True, SkipValidation: False, Escaped: OneEscaped)

ETL Files

Histogram

JIT Disasms

System.Text.Json.Tests.Perf_Strings.WriteStringsUtf8(Formatted: True, SkipValidation: True, Escaped: OneEscaped)

ETL Files

Histogram

JIT Disasms

System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted: True, SkipValidation: True, Escaped: OneEscaped)

ETL Files

Histogram

JIT Disasms

System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted: False, SkipValidation: False, Escaped: OneEscaped)

ETL Files

Histogram

JIT Disasms

System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted: False, SkipValidation: True, Escaped: OneEscaped)

ETL Files

Histogram

JIT Disasms

System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted: True, SkipValidation: False, Escaped: OneEscaped)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Buffers.Tests.SearchValuesCharTests

Repro

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

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Text.Perf_Utf8Encoding

Repro

System.Text.Perf_Utf8Encoding.GetByteCount(Input: EnglishAllAscii)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in Microsoft.Extensions.DependencyInjection.GetService

Repro

Microsoft.Extensions.DependencyInjection.GetService.ServiceScopeProvider

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Text.Json.Node.Tests.Perf_ParseThenWrite

Repro

System.Text.Json.Node.Tests.Perf_ParseThenWrite.ParseThenWrite(IsDataIndented: True, TestCase: Json400KB)

ETL Files

Histogram

JIT Disasms

Docs

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