[Perf] Linux/x64: 22 Regressions on 4/21/2025 2:03:19 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [27d23218a56d484638692d56b3abd27e0b21b591](https://github.com/dotnet/runtime/commit/27d23218a56d484638692d56b3abd27e0b21b591)
Compare | [d9c4c3e73dcf09435a3cc1cabb23584c9f24b504](https://github.com/dotnet/runtime/commit/d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
Diff | [Diff](https://github.com/dotnet/runtime/compare/27d23218a56d484638692d56b3abd27e0b21b591...d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
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>[SingleParallel - 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).SingleParallel(RentalSize%3a%204096%2c%20ManipulateArray%3a%20True%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#L62-#L81>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACl2SUW/TMBDH3yv1Oxx9SSuyJpR1KwEjujFAQhVTU+DZSy6tkWNX9nlrYHx3zmn7wostn+/+/t39rZGA0BMI+JCUnSdspzehadD56YbjfrpGQ2uk4MzSOdndW6v7i3ffHn5hRe+npTJbjffSSa1Rj2O+1KX6jQVc5m+uUlhJo/ZBS8JeoYCNC5jC0nemOh++eyx30mEd9Qv4JLXHSfJ2ONAMKBtCx4Q1S5BqcTzLZ/OLfHYxW2zyRfHqqshfT+eXs+vr+eJlnhd5PjlVOtxbLkxqSwYpc8HE+rPug5Om2sV7h43Pdihrn7VSmXNCZU2jtvHlzshWVeM/ya1t94p7UdasbI1JAQkpZPAkhWQdzFdl6hjkbGeTvxHkM9IX5ck6VUn9UZL8qWgXdaRT3ho/jgaIuKTHVkW/pj29iEt6QhXHLT2BieM2GQ6eYe9stANKdAp9CjdB6XrDzZYk230KP6QOKKJzt5angG6NPmhaPqKTWxwOsuwZnnbcyEkBXrA48Sw8jEZk7w6VDjWORpBlcHdgSY1gG2iUZi3+AWADGwW+L45ADk3NrsV5V+wswRN3DeNjgjhjHiqrQ2vE/7jdMe5Fz815pEijSHh8yJPuTscVSh8ctvznksk/WZ7iN8wCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=>)</li></ul> | 4.00 μs | 4.40 μs | 1.10 | 0.29 | False | | |
|<ul><li>[SingleParallel - 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).SingleParallel(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#L62-#L81>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 675.21 ns | 1.17 μs | 1.74 | 0.79 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_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/04_29_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/04_29_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;.SingleParallel(RentalSize: 4096, ManipulateArray: True, Async: True, UseSharedPool: False)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Buffers.Tests.RentReturnArrayPoolTests&lt;Object&gt;.SingleParallel(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 | [27d23218a56d484638692d56b3abd27e0b21b591](https://github.com/dotnet/runtime/commit/27d23218a56d484638692d56b3abd27e0b21b591)
Compare | [d9c4c3e73dcf09435a3cc1cabb23584c9f24b504](https://github.com/dotnet/runtime/commit/d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
Diff | [Diff](https://github.com/dotnet/runtime/compare/27d23218a56d484638692d56b3abd27e0b21b591...d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
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_ubuntu 22.04/System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options%3a%20(%2c%20IgnoreCase%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> | 464.94 ns | 806.25 ns | 1.73 | 0.53 | False | | |
|<ul><li>[LastIndexOf_Word_NotFound - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options%3a%20(en-US%2c%20IgnoreCase%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> | 465.01 ns | 760.21 ns | 1.63 | 0.54 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Globalization.Tests.StringSearch_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Globalization.Tests.StringSearch_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Globalization.Tests.StringSearch*'
```

<details>

### System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (, IgnoreCase, False))

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (en-US, IgnoreCase, 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 | [27d23218a56d484638692d56b3abd27e0b21b591](https://github.com/dotnet/runtime/commit/27d23218a56d484638692d56b3abd27e0b21b591)
Compare | [d9c4c3e73dcf09435a3cc1cabb23584c9f24b504](https://github.com/dotnet/runtime/commit/d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
Diff | [Diff](https://github.com/dotnet/runtime/compare/27d23218a56d484638692d56b3abd27e0b21b591...d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.IO.Tests.BinaryWriterExtendedTests

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[WriteAsciiCharArray - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.IO.Tests.BinaryWriterExtendedTests.WriteAsciiCharArray(StringLengthInChars%3a%208000).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.IO/BinaryWriterExtendedTests.cs#L29-#L34>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 203.83 ns | 247.24 ns | 1.21 | 0.02 | False | | |
|<ul><li>[WriteAsciiString - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.IO.Tests.BinaryWriterExtendedTests.WriteAsciiString(StringLengthInChars%3a%208000).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.IO/BinaryWriterExtendedTests.cs#L36-#L41>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 204.03 ns | 247.53 ns | 1.21 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.IO.Tests.BinaryWriterExtendedTests_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.IO.Tests.BinaryWriterExtendedTests_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.IO.Tests.BinaryWriterExtendedTests.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.IO.Tests.BinaryWriterExtendedTests*'
```

<details>

### System.IO.Tests.BinaryWriterExtendedTests.WriteAsciiCharArray(StringLengthInChars: 8000)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.IO.Tests.BinaryWriterExtendedTests.WriteAsciiString(StringLengthInChars: 8000)

#### 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 | [27d23218a56d484638692d56b3abd27e0b21b591](https://github.com/dotnet/runtime/commit/27d23218a56d484638692d56b3abd27e0b21b591)
Compare | [d9c4c3e73dcf09435a3cc1cabb23584c9f24b504](https://github.com/dotnet/runtime/commit/d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
Diff | [Diff](https://github.com/dotnet/runtime/compare/27d23218a56d484638692d56b3abd27e0b21b591...d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
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%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> | 13.32 μs | 14.38 μs | 1.08 | 0.08 | 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%20Json4KB).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> | 9.40 μs | 10.98 μs | 1.17 | 0.04 | 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%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> | 974.60 μs | 1.04 ms | 1.07 | 0.05 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_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/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Text.Json.Document.Tests.Perf_ParseThenWrite_002.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Text.Json.Document.Tests.Perf_ParseThenWrite_003.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_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: DeepTree)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Document.Tests.Perf_ParseThenWrite.ParseThenWrite(IsDataIndented: False, TestCase: Json4KB)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Document.Tests.Perf_ParseThenWrite.ParseThenWrite(IsDataIndented: False, 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>


---


### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [27d23218a56d484638692d56b3abd27e0b21b591](https://github.com/dotnet/runtime/commit/27d23218a56d484638692d56b3abd27e0b21b591)
Compare | [d9c4c3e73dcf09435a3cc1cabb23584c9f24b504](https://github.com/dotnet/runtime/commit/d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
Diff | [Diff](https://github.com/dotnet/runtime/compare/27d23218a56d484638692d56b3abd27e0b21b591...d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Tests.Perf_Double

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ToStringWithFormat - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Tests.Perf_Double.ToStringWithFormat(value%3a%201.7976931348623157E%2b308%2c%20format%3a%20%22F50%22).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime/Perf.Double.cs#L65-#L69>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 20.45 μs | 21.86 μs | 1.07 | 0.05 | False | | |
|<ul><li>[ToStringWithFormat - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Tests.Perf_Double.ToStringWithFormat(value%3a%20-1.7976931348623157E%2b308%2c%20format%3a%20%22F50%22).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime/Perf.Double.cs#L65-#L69>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 20.40 μs | 21.82 μs | 1.07 | 0.06 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Tests.Perf_Double_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Tests.Perf_Double_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Tests.Perf_Double.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_Double*'
```

<details>

### System.Tests.Perf_Double.ToStringWithFormat(value: 1.7976931348623157E+308, format: "F50")

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Tests.Perf_Double.ToStringWithFormat(value: -1.7976931348623157E+308, format: "F50")

#### 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 | [27d23218a56d484638692d56b3abd27e0b21b591](https://github.com/dotnet/runtime/commit/27d23218a56d484638692d56b3abd27e0b21b591)
Compare | [d9c4c3e73dcf09435a3cc1cabb23584c9f24b504](https://github.com/dotnet/runtime/commit/d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
Diff | [Diff](https://github.com/dotnet/runtime/compare/27d23218a56d484638692d56b3abd27e0b21b591...d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
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>[Queue - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Collections.ContainsTrue(String).Queue(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Contains/ContainsTrue.cs#L146-#L155>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACl1RTY/TMBC9V+p/GHpxK7JNGrawGzACygoktAc2FZxNMmmNHLuyx2wLy39nnLQXLjP+mHnz3huDBISBQMI7UZ8CYb/cOGOwIe1s4LMlpW3Y+ohvavLa7t4uv0aMOK/1b6xgvSoX4vV0YhhIdYSekVpFSLrHeVmU66uivCpvtsVNVa6q69vl9YuXq9v1q+dFURXF4tzp8eC4UbSOLFLuo039F9wfXtlmn/49diHfo2pD3jOtS0HjbKd3afLJql438z9i4/qDNiqpuHctigoEafTYigzEQ7RftG3TI1d7J/4mIp+QPutAzutGmY+K1HdN+4SjvA5sxjwZJVPIRqlyiNnAXqaQnanKMWVnYnJMi+nkCQ7e/WRzoUavMWTwIWrTbllsTao/ZPBNmYhyy0M2jl1A/4AhGnr/C73a4XSS50/wuGchZwR4xuDDimA2I3d3bExscTaDPIe7I0MaBNdBpw1j8fbARV4UhKE5EfJoW95a8rvZK0/wyKphPhbIC81j40zsrfyf7ml8D3LgzXWkyaAUbB+y06fz9R5ViB57tCQW/wB0cx9MdAIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=>)</li></ul> | 110.04 μs | 206.16 μs | 1.87 | 0.07 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_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/04_29_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;.Queue(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms



### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


---


### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [27d23218a56d484638692d56b3abd27e0b21b591](https://github.com/dotnet/runtime/commit/27d23218a56d484638692d56b3abd27e0b21b591)
Compare | [d9c4c3e73dcf09435a3cc1cabb23584c9f24b504](https://github.com/dotnet/runtime/commit/d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
Diff | [Diff](https://github.com/dotnet/runtime/compare/27d23218a56d484638692d56b3abd27e0b21b591...d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.CreateAddAndRemove&lt;String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Queue - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Collections.CreateAddAndRemove(String).Queue(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/CreateAddAndRemove.cs#L146-#L159>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 3.02 μs | 3.28 μs | 1.09 | 0.08 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Collections.CreateAddAndRemove%28String%29_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Collections.CreateAddAndRemove%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.CreateAddAndRemove&lt;String&gt;*'
```

<details>

### System.Collections.CreateAddAndRemove&lt;String&gt;.Queue(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms



### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


---


### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [27d23218a56d484638692d56b3abd27e0b21b591](https://github.com/dotnet/runtime/commit/27d23218a56d484638692d56b3abd27e0b21b591)
Compare | [d9c4c3e73dcf09435a3cc1cabb23584c9f24b504](https://github.com/dotnet/runtime/commit/d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
Diff | [Diff](https://github.com/dotnet/runtime/compare/27d23218a56d484638692d56b3abd27e0b21b591...d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Buffers.Text.Tests.Utf8ParserTests

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[TryParseUInt64 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Buffers.Text.Tests.Utf8ParserTests.TryParseUInt64(value%3a%2018446744073709551615).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Buffers/Utf8ParserTests.cs#L28-#L31>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 12.75 ns | 16.24 ns | 1.27 | 0.08 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Buffers.Text.Tests.Utf8ParserTests_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Buffers.Text.Tests.Utf8ParserTests.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.Text.Tests.Utf8ParserTests*'
```

<details>

### System.Buffers.Text.Tests.Utf8ParserTests.TryParseUInt64(value: 18446744073709551615)

#### 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 | [27d23218a56d484638692d56b3abd27e0b21b591](https://github.com/dotnet/runtime/commit/27d23218a56d484638692d56b3abd27e0b21b591)
Compare | [d9c4c3e73dcf09435a3cc1cabb23584c9f24b504](https://github.com/dotnet/runtime/commit/d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
Diff | [Diff](https://github.com/dotnet/runtime/compare/27d23218a56d484638692d56b3abd27e0b21b591...d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
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>[SingleParallel - 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).SingleParallel(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#L62-#L81>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 575.19 ns | 646.00 ns | 1.12 | 0.75 | 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(Byte).SingleSerial(RentalSize%3a%204096%2c%20ManipulateArray%3a%20False%2c%20Async%3a%20False%2c%20UseSharedPool%3a%20True).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> | 10.02 ns | 12.36 ns | 1.23 | 0.05 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_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/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Buffers.Tests.RentReturnArrayPoolTests%28Byte%29_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_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;.SingleParallel(RentalSize: 4096, ManipulateArray: False, Async: False, UseSharedPool: False)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Buffers.Tests.RentReturnArrayPoolTests&lt;Byte&gt;.SingleSerial(RentalSize: 4096, ManipulateArray: False, Async: False, UseSharedPool: True)

#### 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 | [27d23218a56d484638692d56b3abd27e0b21b591](https://github.com/dotnet/runtime/commit/27d23218a56d484638692d56b3abd27e0b21b591)
Compare | [d9c4c3e73dcf09435a3cc1cabb23584c9f24b504](https://github.com/dotnet/runtime/commit/d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
Diff | [Diff](https://github.com/dotnet/runtime/compare/27d23218a56d484638692d56b3abd27e0b21b591...d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Text.Json.Tests.Perf_Basic

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[WriteBasicUtf8 - 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_Basic.WriteBasicUtf8(Formatted%3a%20False%2c%20SkipValidation%3a%20True%2c%20DataSize%3a%20100000).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Utf8JsonWriter/Perf.Basic.cs#L60-#L92>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACl1RUW/TMBB+r9T/cPTFrciarGylCrIEGxsINAmthT0ik1zaA8eu7MvWwvjvnNP2hTyc7ct33333nUUGxsig4a1a7iNjO13hjqefondyixynXzA0369MpGr6EIixv37lZjG+9aE1zFiXcGtsxAyWv2j7zViqDZN3JaxCJ9n3hs2SfmMJ50X6JurNcGCltWkYg/QWODK1OJ4Vs8uzYnY2W6yKRTm7KM/n09evLouL+fxlUZRSeqwMuPVSqGrPDjkPnUv1J94fwbhqk/4HbGK+QVPHvDXkToDKu4bWqfPemZaq8R917dst2V73na9RlaCYMGCtMlD3nftMrk5JQQev/iYhH5A/UmQfqDI2DflAvEk8JpD4F8fJWp1CdhhV9zHr1esUsqNUfTiyozB9OCbDwTNsg/+JFcMSA2HM4KojW69k2CWbdpuB2N2hTqu69uIChnuMneV3jxjMGoeDPH+Gp40McmSAF0LO4kWE0Yj9za6yXY2jEeQ53OyE0iL4BhqywkVuDb6TRUHsi5OggK6WrSW/q40JDE8yNYwPAH2Suau87Vqn/5e7P+Sj7nULjoktaiX2oTi9Pz7v0MQuYIuO1eQfT75+nqYCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=>)</li></ul> | 1.23 ms | 1.30 ms | 1.06 | 0.19 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Text.Json.Tests.Perf_Basic_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Text.Json.Tests.Perf_Basic.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_Basic*'
```

<details>

### System.Text.Json.Tests.Perf_Basic.WriteBasicUtf8(Formatted: False, SkipValidation: True, DataSize: 100000)

#### 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 | [27d23218a56d484638692d56b3abd27e0b21b591](https://github.com/dotnet/runtime/commit/27d23218a56d484638692d56b3abd27e0b21b591)
Compare | [d9c4c3e73dcf09435a3cc1cabb23584c9f24b504](https://github.com/dotnet/runtime/commit/d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
Diff | [Diff](https://github.com/dotnet/runtime/compare/27d23218a56d484638692d56b3abd27e0b21b591...d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.IO.Tests.Perf_Path

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[GetFullPathNoRedundantSegments - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.IO.Tests.Perf_Path.GetFullPathNoRedundantSegments.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime.Extensions/Perf.Path.cs#L73-#L74>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 126.21 ns | 164.10 ns | 1.30 | 0.08 | False | | |
|<ul><li>[GetFullPathForLegacyLength - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.IO.Tests.Perf_Path.GetFullPathForLegacyLength.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime.Extensions/Perf.Path.cs#L62-#L63>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 255.30 ns | 302.05 ns | 1.18 | 0.08 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.IO.Tests.Perf_Path_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.IO.Tests.Perf_Path_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.IO.Tests.Perf_Path*'
```

<details>

### System.IO.Tests.Perf_Path.GetFullPathNoRedundantSegments

#### ETL Files

#### Histogram

#### JIT Disasms

### System.IO.Tests.Perf_Path.GetFullPathForLegacyLength

#### 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 | [27d23218a56d484638692d56b3abd27e0b21b591](https://github.com/dotnet/runtime/commit/27d23218a56d484638692d56b3abd27e0b21b591)
Compare | [d9c4c3e73dcf09435a3cc1cabb23584c9f24b504](https://github.com/dotnet/runtime/commit/d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
Diff | [Diff](https://github.com/dotnet/runtime/compare/27d23218a56d484638692d56b3abd27e0b21b591...d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Memory.Span&lt;Byte&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[LastIndexOfValue - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Memory.Span(Byte).LastIndexOfValue(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L93-#L94>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 5.11 ns | 7.22 ns | 1.41 | 0.15 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Memory.Span%28Byte%29_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Memory.Span%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.Memory.Span&lt;Byte&gt;*'
```

<details>

### System.Memory.Span&lt;Byte&gt;.LastIndexOfValue(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 | [27d23218a56d484638692d56b3abd27e0b21b591](https://github.com/dotnet/runtime/commit/27d23218a56d484638692d56b3abd27e0b21b591)
Compare | [d9c4c3e73dcf09435a3cc1cabb23584c9f24b504](https://github.com/dotnet/runtime/commit/d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
Diff | [Diff](https://github.com/dotnet/runtime/compare/27d23218a56d484638692d56b3abd27e0b21b591...d9c4c3e73dcf09435a3cc1cabb23584c9f24b504)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Text.RegularExpressions.Tests.Perf_Regex_Industry_Leipzig

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_Leipzig.Count(Pattern%3a%20%22(%3fi)Twain%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#L242-#L244>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 3.36 ms | 3.57 ms | 1.06 | 0.11 | False | | |
|<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_Leipzig.Count(Pattern%3a%20%22(%3fi)Twain%22%2c%20Options%3a%20None).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.RegularExpressions/Perf.Regex.Industry.cs#L242-#L244>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACl1R247TMBB9r9R/GPKSVGSbEHahCoq4LBUgWFi1FTxWJpm0Ro4d2eNtAsu/M+7lhZexPJcz55xRSEDoCCp4E69HR9jNNzjQfIU7r4RdDr1F56TRjvOO3PwebbvlKg7bT7rxjuy4/YKy/y1381vjNSX3ggitLiFKXsvZ5iCkjlL41lNAKeGr0TiLX00nineLllt5eSMISXaYFHlxc5UXV8Viky/KYlFeF/Nnxc3z6xcvn+Z5meez86TF3vBg3BjSSJnlzTx/wf1pha73oW6xddkeReOyjplcGmqjW7kLm0ctOlknf+Jb0/VSiUDzzjQYlxCTRItNnEK88vqz1E1Icrc18d9A5APSR+nIWFkL9V6Q+CFpH3CElY7VJsHbKoT0JLU6xvTIvgohPVOtTk96Jladntl08gi9Nb+wJlijlehSeOelajYsdk2i61P4LpTHKlzn6D/aFTqv6O0DWrHD6STLHuGwZyFnBHjC4MReOIgiMsuhVr7BKIIsg+XAkArBtNBKxVhS78B4PhS443AgZFE3fLXgd70XluDAqiE5NVQXmkNtlO909T/d8ZR31ZE395EkhVXM9iE7PZ6/dyict9ihpnj2D8uVXnGnAgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=>)</li></ul> | 3.19 ms | 3.61 ms | 1.13 | 0.07 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Text.RegularExpressions.Tests.Perf_Regex_Industry_Leipzig_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Text.RegularExpressions.Tests.Perf_Regex_Industry_Leipzig_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_29_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Text.RegularExpressions.Tests.Perf_Regex_Industry_Leipzig.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_Leipzig*'
```

<details>

### System.Text.RegularExpressions.Tests.Perf_Regex_Industry_Leipzig.Count(Pattern: "(?i)Twain", Options: NonBacktracking)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.RegularExpressions.Tests.Perf_Regex_Industry_Leipzig.Count(Pattern: "(?i)Twain", Options: None)

#### 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	27d23218a56d484638692d56b3abd27e0b21b591
Compare	d9c4c3e73dcf09435a3cc1cabb23584c9f24b504
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
SingleParallel - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	4.00 μs	4.40 μs	1.10	0.29	False
SingleParallel - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	675.21 ns	1.17 μs	1.74	0.79	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
LastIndexOf_Word_NotFound - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	464.94 ns	806.25 ns	1.73	0.53	False
LastIndexOf_Word_NotFound - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	465.01 ns	760.21 ns	1.63	0.54	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
WriteAsciiCharArray - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	203.83 ns	247.24 ns	1.21	0.02	False
WriteAsciiString - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	204.03 ns	247.53 ns	1.21	0.01	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
ParseThenWrite - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	13.32 μs	14.38 μs	1.08	0.08	False
ParseThenWrite - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	9.40 μs	10.98 μs	1.17	0.04	False
ParseThenWrite - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	974.60 μs	1.04 ms	1.07	0.05	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
ToStringWithFormat - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	20.45 μs	21.86 μs	1.07	0.05	False
ToStringWithFormat - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	20.40 μs	21.82 μs	1.07	0.06	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
SingleParallel - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	575.19 ns	646.00 ns	1.12	0.75	False
SingleSerial - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	10.02 ns	12.36 ns	1.23	0.05	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
GetFullPathNoRedundantSegments - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	126.21 ns	164.10 ns	1.30	0.08	False
GetFullPathForLegacyLength - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	255.30 ns	302.05 ns	1.18	0.08	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	3.36 ms	3.57 ms	1.06	0.11	False
Count - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	3.19 ms	3.61 ms	1.13	0.07	False

[Perf] Linux/x64: 22 Regressions on 4/21/2025 2:03:19 AM +00:00 #54569

Description

Run Information

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

Repro

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

ETL Files

Histogram

JIT Disasms

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

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Globalization.Tests.StringSearch

Repro

System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (, IgnoreCase, False))

ETL Files

Histogram

JIT Disasms

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

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.IO.Tests.BinaryWriterExtendedTests

Repro

System.IO.Tests.BinaryWriterExtendedTests.WriteAsciiCharArray(StringLengthInChars: 8000)

ETL Files

Histogram

JIT Disasms

System.IO.Tests.BinaryWriterExtendedTests.WriteAsciiString(StringLengthInChars: 8000)

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: DeepTree)

ETL Files

Histogram

JIT Disasms

System.Text.Json.Document.Tests.Perf_ParseThenWrite.ParseThenWrite(IsDataIndented: False, TestCase: Json4KB)

ETL Files

Histogram

JIT Disasms

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

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Tests.Perf_Double

Repro

System.Tests.Perf_Double.ToStringWithFormat(value: 1.7976931348623157E+308, format: "F50")

ETL Files

Histogram

JIT Disasms

System.Tests.Perf_Double.ToStringWithFormat(value: -1.7976931348623157E+308, format: "F50")

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Collections.ContainsTrue<String>

Repro

System.Collections.ContainsTrue<String>.Queue(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Collections.CreateAddAndRemove<String>

Repro

System.Collections.CreateAddAndRemove<String>.Queue(Size: 512)

ETL Files

Histogram