[Perf] Linux/x64: 20 Regressions on 5/19/2025 4:32:47 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [2e77d32dfcd5465434e4b0963e9be50b749521f6](https://github.com/dotnet/runtime/commit/2e77d32dfcd5465434e4b0963e9be50b749521f6)
Compare | [d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd](https://github.com/dotnet/runtime/commit/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2e77d32dfcd5465434e4b0963e9be50b749521f6...d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Buffers.Tests.RentReturnArrayPoolTests&lt;Byte&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[SingleSerial - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Buffers.Tests.RentReturnArrayPoolTests(Byte).SingleSerial(RentalSize%3a%204096%2c%20ManipulateArray%3a%20False%2c%20Async%3a%20False%2c%20UseSharedPool%3a%20False).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Buffers/ArrayPoolTests.cs#L48-#L60>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 24.64 ns | 28.66 ns | 1.16 | 0.04 | False | | |
|<ul><li>[MultipleSerial - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Buffers.Tests.RentReturnArrayPoolTests(Byte).MultipleSerial(RentalSize%3a%204096%2c%20ManipulateArray%3a%20False%2c%20Async%3a%20False%2c%20UseSharedPool%3a%20False).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Buffers/ArrayPoolTests.cs#L83-#L104>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 232.58 ns | 265.36 ns | 1.14 | 0.05 | False | | |
|<ul><li>[MultipleSerial - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Buffers.Tests.RentReturnArrayPoolTests(Byte).MultipleSerial(RentalSize%3a%204096%2c%20ManipulateArray%3a%20False%2c%20Async%3a%20True%2c%20UseSharedPool%3a%20False).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Buffers/ArrayPoolTests.cs#L83-#L104>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 416.13 ns | 446.39 ns | 1.07 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Buffers.Tests.RentReturnArrayPoolTests%28Byte%29_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Buffers.Tests.RentReturnArrayPoolTests%28Byte%29_002.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Buffers.Tests.RentReturnArrayPoolTests%28Byte%29_003.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Buffers.Tests.RentReturnArrayPoolTests%28Byte%29.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Buffers.Tests.RentReturnArrayPoolTests&lt;Byte&gt;*'
```

<details>

### System.Buffers.Tests.RentReturnArrayPoolTests&lt;Byte&gt;.SingleSerial(RentalSize: 4096, ManipulateArray: False, Async: False, UseSharedPool: False)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Buffers.Tests.RentReturnArrayPoolTests&lt;Byte&gt;.MultipleSerial(RentalSize: 4096, ManipulateArray: False, Async: False, UseSharedPool: False)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Buffers.Tests.RentReturnArrayPoolTests&lt;Byte&gt;.MultipleSerial(RentalSize: 4096, ManipulateArray: False, Async: True, UseSharedPool: 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 | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [2e77d32dfcd5465434e4b0963e9be50b749521f6](https://github.com/dotnet/runtime/commit/2e77d32dfcd5465434e4b0963e9be50b749521f6)
Compare | [d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd](https://github.com/dotnet/runtime/commit/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2e77d32dfcd5465434e4b0963e9be50b749521f6...d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Globalization.Tests.StringEquality

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Compare_Same_Upper - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Globalization.Tests.StringEquality.Compare_Same_Upper(Count%3a%201024%2c%20Options%3a%20(en-US%2c%20Ordinal)).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Globalization/StringEquality.cs#L65-#L67>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 9.58 ns | 15.04 ns | 1.57 | 0.12 | False | | |
|<ul><li>[Compare_DifferentFirstChar - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Globalization.Tests.StringEquality.Compare_DifferentFirstChar(Count%3a%201024%2c%20Options%3a%20(en-US%2c%20Ordinal)).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Globalization/StringEquality.cs#L69-#L71>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 7.38 ns | 11.76 ns | 1.59 | 0.09 | False | | |
|<ul><li>[Compare_DifferentFirstChar - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Globalization.Tests.StringEquality.Compare_DifferentFirstChar(Count%3a%201024%2c%20Options%3a%20(en-US%2c%20OrdinalIgnoreCase)).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Globalization/StringEquality.cs#L69-#L71>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 5.68 ns | 10.56 ns | 1.86 | 0.11 | False | | |
|<ul><li>[Compare_Same - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Globalization.Tests.StringEquality.Compare_Same(Count%3a%201024%2c%20Options%3a%20(en-US%2c%20Ordinal)).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Globalization/StringEquality.cs#L61-#L63>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 35.71 ns | 38.49 ns | 1.08 | 0.05 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Globalization.Tests.StringEquality_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Globalization.Tests.StringEquality_002.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Globalization.Tests.StringEquality_003.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Globalization.Tests.StringEquality_004.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Globalization.Tests.StringEquality.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Globalization.Tests.StringEquality*'
```

<details>

### System.Globalization.Tests.StringEquality.Compare_Same_Upper(Count: 1024, Options: (en-US, Ordinal))

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Globalization.Tests.StringEquality.Compare_DifferentFirstChar(Count: 1024, Options: (en-US, Ordinal))

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Globalization.Tests.StringEquality.Compare_DifferentFirstChar(Count: 1024, Options: (en-US, OrdinalIgnoreCase))

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Globalization.Tests.StringEquality.Compare_Same(Count: 1024, Options: (en-US, Ordinal))

#### 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 | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [2e77d32dfcd5465434e4b0963e9be50b749521f6](https://github.com/dotnet/runtime/commit/2e77d32dfcd5465434e4b0963e9be50b749521f6)
Compare | [d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd](https://github.com/dotnet/runtime/commit/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2e77d32dfcd5465434e4b0963e9be50b749521f6...d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in PerfLabTests.GetMember

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[GetMethod20 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/PerfLabTests.GetMember.GetMethod20.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/ReflectionPerf.cs#L307-#L377>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACl1RwW4TMRC9R8o/DLk4EduuyYICQZaAUhWpjYTaCM7OejZr5LUje5Ymovw74+zmwmXssec9v/fskIAwESj4JL5jbB70bst9ur5D2mC3wzjsqA1mKcXH6cQxRDeEkTFGE5LtcL6Uy3dXsrparrby/VpW62p1/eZt9WFVVa+lXEu5GJERD4GBwgTySGXsfcZfeHdR+7rN9xGbVLaoTSo7bf1loA6+sfv88snrztbzP+ImdAfrNNngN8GgWIMgixGNKEA89v7eepMPeToG8TcLYUffbKIQba3dV036p6U28+hoU/BpniNRuRSDVXWuxVm9yqUYpaphKUZhalgW08kLHGL4hTXBE0aLqYAvvXVmy2afSHeHAn5o16PKYd8ETgHjI6be0effGPUep5OyfIHnlo2MDPCKyYmzSDCbUbg91q43OJtBWcLtkSkdQmigsY65rN9D6PmjIJ3BWVBEb/jXct51qyPBM7uG+TCgLjKPdXB959X/ck/DeVJn3TxHlhwqwfEhJ30a2w3q1Efs0JNY/AOi+IQHXgIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=>)</li></ul> | 1.02 ms | 1.10 ms | 1.08 | 0.13 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/PerfLabTests.GetMember_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/PerfLabTests.GetMember.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'PerfLabTests.GetMember*'
```

<details>

### PerfLabTests.GetMember.GetMethod20

#### 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 | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [2e77d32dfcd5465434e4b0963e9be50b749521f6](https://github.com/dotnet/runtime/commit/2e77d32dfcd5465434e4b0963e9be50b749521f6)
Compare | [d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd](https://github.com/dotnet/runtime/commit/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2e77d32dfcd5465434e4b0963e9be50b749521f6...d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Text.Json.Document.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_ubuntu 22.04/System.Text.Json.Document.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/Document/ParseThenWrite.cs#L60-#L69>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.15 ms | 1.33 ms | 1.16 | 0.05 | False | | |
|<ul><li>[ParseThenWrite - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Text.Json.Document.Tests.Perf_ParseThenWrite.ParseThenWrite(IsDataIndented%3a%20False%2c%20TestCase%3a%20DeepTree).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Document/ParseThenWrite.cs#L60-#L69>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 7.68 μs | 8.78 μs | 1.14 | 0.49 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Text.Json.Document.Tests.Perf_ParseThenWrite_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Text.Json.Document.Tests.Perf_ParseThenWrite_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Text.Json.Document.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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.Json.Document.Tests.Perf_ParseThenWrite*'
```

<details>

### System.Text.Json.Document.Tests.Perf_ParseThenWrite.ParseThenWrite(IsDataIndented: True, TestCase: Json400KB)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Document.Tests.Perf_ParseThenWrite.ParseThenWrite(IsDataIndented: False, TestCase: DeepTree)

#### 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 | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [2e77d32dfcd5465434e4b0963e9be50b749521f6](https://github.com/dotnet/runtime/commit/2e77d32dfcd5465434e4b0963e9be50b749521f6)
Compare | [d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd](https://github.com/dotnet/runtime/commit/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2e77d32dfcd5465434e4b0963e9be50b749521f6...d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock

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_ubuntu 22.04/System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock.Count(Pattern%3a%20%22%5c%5cw%2b%22%2c%20Options%3a%20NonBacktracking).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.RegularExpressions/Perf.Regex.Industry.cs#L193-#L195>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 8.67 ms | 9.14 ms | 1.05 | 0.15 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock*'
```

<details>

### System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock.Count(Pattern: "\\w+", Options: NonBacktracking)

#### 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 | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [2e77d32dfcd5465434e4b0963e9be50b749521f6](https://github.com/dotnet/runtime/commit/2e77d32dfcd5465434e4b0963e9be50b749521f6)
Compare | [d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd](https://github.com/dotnet/runtime/commit/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2e77d32dfcd5465434e4b0963e9be50b749521f6...d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.CreateAddAndClear&lt;Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ConcurrentBag - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Collections.CreateAddAndClear(Int32).ConcurrentBag(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/CreateAddAndClear.cs#L229-#L239>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 6.78 μs | 7.19 μs | 1.06 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Collections.CreateAddAndClear%28Int32%29_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Collections.CreateAddAndClear%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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.CreateAddAndClear&lt;Int32&gt;*'
```

<details>

### System.Collections.CreateAddAndClear&lt;Int32&gt;.ConcurrentBag(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 | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [2e77d32dfcd5465434e4b0963e9be50b749521f6](https://github.com/dotnet/runtime/commit/2e77d32dfcd5465434e4b0963e9be50b749521f6)
Compare | [d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd](https://github.com/dotnet/runtime/commit/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2e77d32dfcd5465434e4b0963e9be50b749521f6...d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Text.Json.Tests.Perf_Booleans

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[WriteBooleans - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Text.Json.Tests.Perf_Booleans.WriteBooleans(Formatted%3a%20False%2c%20SkipValidation%3a%20False).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Utf8JsonWriter/Perf.Booleans.cs#L41-#L56>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 737.55 μs | 816.35 μs | 1.11 | 0.15 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Text.Json.Tests.Perf_Booleans_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Text.Json.Tests.Perf_Booleans.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.Json.Tests.Perf_Booleans*'
```

<details>

### System.Text.Json.Tests.Perf_Booleans.WriteBooleans(Formatted: False, SkipValidation: 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 | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [2e77d32dfcd5465434e4b0963e9be50b749521f6](https://github.com/dotnet/runtime/commit/2e77d32dfcd5465434e4b0963e9be50b749521f6)
Compare | [d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd](https://github.com/dotnet/runtime/commit/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2e77d32dfcd5465434e4b0963e9be50b749521f6...d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.ContainsTrue&lt;String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ImmutableArray - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Collections.ContainsTrue(String).ImmutableArray(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Contains/ContainsTrue.cs#L200-#L209>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 179.61 μs | 203.58 μs | 1.13 | 0.13 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Collections.ContainsTrue%28String%29_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Collections.ContainsTrue%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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.ContainsTrue&lt;String&gt;*'
```

<details>

### System.Collections.ContainsTrue&lt;String&gt;.ImmutableArray(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 | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [2e77d32dfcd5465434e4b0963e9be50b749521f6](https://github.com/dotnet/runtime/commit/2e77d32dfcd5465434e4b0963e9be50b749521f6)
Compare | [d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd](https://github.com/dotnet/runtime/commit/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2e77d32dfcd5465434e4b0963e9be50b749521f6...d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Tests.Perf_String

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Concat_CharEnumerable - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Tests.Perf_String.Concat_CharEnumerable.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime/Perf.String.cs#L51-#L54>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 2.72 μs | 3.13 μs | 1.15 | 0.17 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Tests.Perf_String_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Tests.Perf_String.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_String*'
```

<details>

### System.Tests.Perf_String.Concat_CharEnumerable

#### 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 | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [2e77d32dfcd5465434e4b0963e9be50b749521f6](https://github.com/dotnet/runtime/commit/2e77d32dfcd5465434e4b0963e9be50b749521f6)
Compare | [d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd](https://github.com/dotnet/runtime/commit/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2e77d32dfcd5465434e4b0963e9be50b749521f6...d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Buffers.Tests.RentReturnArrayPoolTests&lt;Object&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[MultipleSerial - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Buffers.Tests.RentReturnArrayPoolTests(Object).MultipleSerial(RentalSize%3a%204096%2c%20ManipulateArray%3a%20False%2c%20Async%3a%20False%2c%20UseSharedPool%3a%20False).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Buffers/ArrayPoolTests.cs#L83-#L104>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 235.73 ns | 265.98 ns | 1.13 | 0.04 | False | | |
|<ul><li>[SingleSerial - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Buffers.Tests.RentReturnArrayPoolTests(Object).SingleSerial(RentalSize%3a%204096%2c%20ManipulateArray%3a%20False%2c%20Async%3a%20False%2c%20UseSharedPool%3a%20False).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Buffers/ArrayPoolTests.cs#L48-#L60>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 25.60 ns | 28.43 ns | 1.11 | 0.06 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Buffers.Tests.RentReturnArrayPoolTests%28Object%29_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Buffers.Tests.RentReturnArrayPoolTests%28Object%29_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Buffers.Tests.RentReturnArrayPoolTests%28Object%29.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Buffers.Tests.RentReturnArrayPoolTests&lt;Object&gt;*'
```

<details>

### System.Buffers.Tests.RentReturnArrayPoolTests&lt;Object&gt;.MultipleSerial(RentalSize: 4096, ManipulateArray: False, Async: False, UseSharedPool: False)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Buffers.Tests.RentReturnArrayPoolTests&lt;Object&gt;.SingleSerial(RentalSize: 4096, ManipulateArray: False, Async: False, UseSharedPool: 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 | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [2e77d32dfcd5465434e4b0963e9be50b749521f6](https://github.com/dotnet/runtime/commit/2e77d32dfcd5465434e4b0963e9be50b749521f6)
Compare | [d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd](https://github.com/dotnet/runtime/commit/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2e77d32dfcd5465434e4b0963e9be50b749521f6...d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Buffers.Tests.NonStandardArrayPoolTests&lt;Object&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[RentNoReturn - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Buffers.Tests.NonStandardArrayPoolTests(Object).RentNoReturn(RentalSize%3a%2064%2c%20UseSharedPool%3a%20False).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Buffers/ArrayPoolTests.cs#L169-#L177>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 46.24 ns | 52.22 ns | 1.13 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Buffers.Tests.NonStandardArrayPoolTests%28Object%29_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Buffers.Tests.NonStandardArrayPoolTests%28Object%29.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Buffers.Tests.NonStandardArrayPoolTests&lt;Object&gt;*'
```

<details>

### System.Buffers.Tests.NonStandardArrayPoolTests&lt;Object&gt;.RentNoReturn(RentalSize: 64, UseSharedPool: 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 | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [2e77d32dfcd5465434e4b0963e9be50b749521f6](https://github.com/dotnet/runtime/commit/2e77d32dfcd5465434e4b0963e9be50b749521f6)
Compare | [d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd](https://github.com/dotnet/runtime/commit/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2e77d32dfcd5465434e4b0963e9be50b749521f6...d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Tests.Perf_DateTime

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ToString - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Tests.Perf_DateTime.ToString(format%3a%20%22r%22).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime/Perf.DateTime.cs#L37-#L40>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 22.47 ns | 26.80 ns | 1.19 | 0.06 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Tests.Perf_DateTime_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Tests.Perf_DateTime.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_DateTime*'
```

<details>

### System.Tests.Perf_DateTime.ToString(format: "r")

#### 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 | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [2e77d32dfcd5465434e4b0963e9be50b749521f6](https://github.com/dotnet/runtime/commit/2e77d32dfcd5465434e4b0963e9be50b749521f6)
Compare | [d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd](https://github.com/dotnet/runtime/commit/d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2e77d32dfcd5465434e4b0963e9be50b749521f6...d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Numerics.Tensors.Tests.Perf_FloatingPointTensorPrimitives&lt;Double&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Ieee754Remainder_Vector - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Numerics.Tensors.Tests.Perf_FloatingPointTensorPrimitives(Double).Ieee754Remainder_Vector(BufferLength%3a%20128).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Numerics.Tensors/Perf_FloatingPointTensorPrimitives.cs#L78-#L79>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.10 μs | 1.20 μs | 1.09 | 0.05 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Numerics.Tensors.Tests.Perf_FloatingPointTensorPrimitives%28Double%29_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_27_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Numerics.Tensors.Tests.Perf_FloatingPointTensorPrimitives%28Double%29.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Numerics.Tensors.Tests.Perf_FloatingPointTensorPrimitives&lt;Double&gt;*'
```

<details>

### System.Numerics.Tensors.Tests.Perf_FloatingPointTensorPrimitives&lt;Double&gt;.Ieee754Remainder_Vector(BufferLength: 128)

#### ETL Files

#### Histogram

#### JIT Disasms



### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	TigerUbuntu
Baseline	2e77d32dfcd5465434e4b0963e9be50b749521f6
Compare	d1f333e9b23ecd5c5bd0f6a81065cf1df355e8bd
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
SingleSerial - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	24.64 ns	28.66 ns	1.16	0.04	False
MultipleSerial - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	232.58 ns	265.36 ns	1.14	0.05	False
MultipleSerial - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	416.13 ns	446.39 ns	1.07	0.01	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
Compare_Same_Upper - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	9.58 ns	15.04 ns	1.57	0.12	False
Compare_DifferentFirstChar - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	7.38 ns	11.76 ns	1.59	0.09	False
Compare_DifferentFirstChar - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	5.68 ns	10.56 ns	1.86	0.11	False
Compare_Same - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	35.71 ns	38.49 ns	1.08	0.05	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
ParseThenWrite - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.15 ms	1.33 ms	1.16	0.05	False
ParseThenWrite - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	7.68 μs	8.78 μs	1.14	0.49	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
MultipleSerial - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	235.73 ns	265.98 ns	1.13	0.04	False
SingleSerial - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	25.60 ns	28.43 ns	1.11	0.06	False

[Perf] Linux/x64: 20 Regressions on 5/19/2025 4:32:47 PM +00:00 #56153

Description

Run Information

Regressions in System.Buffers.Tests.RentReturnArrayPoolTests<Byte>

Repro

System.Buffers.Tests.RentReturnArrayPoolTests<Byte>.SingleSerial(RentalSize: 4096, ManipulateArray: False, Async: False, UseSharedPool: False)

ETL Files

Histogram

JIT Disasms

System.Buffers.Tests.RentReturnArrayPoolTests<Byte>.MultipleSerial(RentalSize: 4096, ManipulateArray: False, Async: False, UseSharedPool: False)

ETL Files

Histogram

JIT Disasms

System.Buffers.Tests.RentReturnArrayPoolTests<Byte>.MultipleSerial(RentalSize: 4096, ManipulateArray: False, Async: True, UseSharedPool: False)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Globalization.Tests.StringEquality

Repro

System.Globalization.Tests.StringEquality.Compare_Same_Upper(Count: 1024, Options: (en-US, Ordinal))

ETL Files

Histogram

JIT Disasms

System.Globalization.Tests.StringEquality.Compare_DifferentFirstChar(Count: 1024, Options: (en-US, Ordinal))

ETL Files

Histogram

JIT Disasms

System.Globalization.Tests.StringEquality.Compare_DifferentFirstChar(Count: 1024, Options: (en-US, OrdinalIgnoreCase))

ETL Files

Histogram

JIT Disasms

System.Globalization.Tests.StringEquality.Compare_Same(Count: 1024, Options: (en-US, Ordinal))

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in PerfLabTests.GetMember

Repro

PerfLabTests.GetMember.GetMethod20

ETL Files

Histogram

JIT Disasms

Docs

Run Information

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

Repro

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

ETL Files

Histogram

JIT Disasms

System.Text.Json.Document.Tests.Perf_ParseThenWrite.ParseThenWrite(IsDataIndented: False, TestCase: DeepTree)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock

Repro

System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock.Count(Pattern: "\w+", Options: NonBacktracking)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Collections.CreateAddAndClear<Int32>

Repro

System.Collections.CreateAddAndClear<Int32>.ConcurrentBag(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Text.Json.Tests.Perf_Booleans

Repro

System.Text.Json.Tests.Perf_Booleans.WriteBooleans(Formatted: False, SkipValidation: False)

ETL Files

Histogram