[Perf] Linux/x64: 27 Regressions from Monitor change on 10/30/2025 8:48:51 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [5219f86d5592560b51e4b226e9419089e546b7ab](https://github.com/dotnet/runtime/commit/5219f86d5592560b51e4b226e9419089e546b7ab)
Compare | [19ca5df408eb420295aa0246dbfde530a6f528b8](https://github.com/dotnet/runtime/commit/19ca5df408eb420295aa0246dbfde530a6f528b8)
Diff | [Diff](https://github.com/dotnet/runtime/compare/5219f86d5592560b51e4b226e9419089e546b7ab...19ca5df408eb420295aa0246dbfde530a6f528b8)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Text.RegularExpressions.Tests.Perf_Regex_Cache

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[IsMatch_Multithreading - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Text.RegularExpressions.Tests.Perf_Regex_Cache.IsMatch_Multithreading(total%3a%2040000%2c%20unique%3a%207%2c%20cacheSize%3a%200).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.RegularExpressions/Perf.Regex.Cache.cs#L63-#L89>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 13.63 ms | 14.67 ms | 1.08 | 0.68 | False | | |
|<ul><li>[IsMatch_Multithreading - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Text.RegularExpressions.Tests.Perf_Regex_Cache.IsMatch_Multithreading(total%3a%20400000%2c%20unique%3a%201%2c%20cacheSize%3a%2015).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.RegularExpressions/Perf.Regex.Cache.cs#L63-#L89>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 41.18 ms | 48.26 ms | 1.17 | 0.27 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Text.RegularExpressions.Tests.Perf_Regex_Cache_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Text.RegularExpressions.Tests.Perf_Regex_Cache_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Text.RegularExpressions.Tests.Perf_Regex_Cache.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_Cache*'
```

<details>

### System.Text.RegularExpressions.Tests.Perf_Regex_Cache.IsMatch_Multithreading(total: 40000, unique: 7, cacheSize: 0)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.RegularExpressions.Tests.Perf_Regex_Cache.IsMatch_Multithreading(total: 400000, unique: 1, cacheSize: 15)

#### 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 | ViperUbuntu
Baseline | [5219f86d5592560b51e4b226e9419089e546b7ab](https://github.com/dotnet/runtime/commit/5219f86d5592560b51e4b226e9419089e546b7ab)
Compare | [19ca5df408eb420295aa0246dbfde530a6f528b8](https://github.com/dotnet/runtime/commit/19ca5df408eb420295aa0246dbfde530a6f528b8)
Diff | [Diff](https://github.com/dotnet/runtime/compare/5219f86d5592560b51e4b226e9419089e546b7ab...19ca5df408eb420295aa0246dbfde530a6f528b8)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.IndexerSet&lt;Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ConcurrentDictionary - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Collections.IndexerSet(Int32).ConcurrentDictionary(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Indexer/IndexerSet.cs#L137-#L145>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 6.92 μs | 9.37 μs | 1.35 | 0.08 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.IndexerSet%28Int32%29_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.IndexerSet%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.IndexerSet<Int32>*'
```

<details>

### System.Collections.IndexerSet&lt;Int32&gt;.ConcurrentDictionary(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 | ViperUbuntu
Baseline | [5219f86d5592560b51e4b226e9419089e546b7ab](https://github.com/dotnet/runtime/commit/5219f86d5592560b51e4b226e9419089e546b7ab)
Compare | [19ca5df408eb420295aa0246dbfde530a6f528b8](https://github.com/dotnet/runtime/commit/19ca5df408eb420295aa0246dbfde530a6f528b8)
Diff | [Diff](https://github.com/dotnet/runtime/compare/5219f86d5592560b51e4b226e9419089e546b7ab...19ca5df408eb420295aa0246dbfde530a6f528b8)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.Concurrent.IsEmpty&lt;String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Dictionary - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Collections.Concurrent.IsEmpty(String).Dictionary(Size%3a%200).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Concurrent/IsEmpty.cs#L28-#L29>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 221.88 ns | 252.72 ns | 1.14 | 0.10 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.Concurrent.IsEmpty%28String%29_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.Concurrent.IsEmpty%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.Concurrent.IsEmpty<String>*'
```

<details>

### System.Collections.Concurrent.IsEmpty&lt;String&gt;.Dictionary(Size: 0)

#### 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 | ViperUbuntu
Baseline | [5219f86d5592560b51e4b226e9419089e546b7ab](https://github.com/dotnet/runtime/commit/5219f86d5592560b51e4b226e9419089e546b7ab)
Compare | [19ca5df408eb420295aa0246dbfde530a6f528b8](https://github.com/dotnet/runtime/commit/19ca5df408eb420295aa0246dbfde530a6f528b8)
Diff | [Diff](https://github.com/dotnet/runtime/compare/5219f86d5592560b51e4b226e9419089e546b7ab...19ca5df408eb420295aa0246dbfde530a6f528b8)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Parse_SequentialAsync - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_SequentialAsync(Length%3a%204096%2c%20Chunks%3a%201).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.IO.Pipelines/PipeThroughputBenchmark.cs#L86-#L105>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 79.37 ns | 88.27 ns | 1.11 | 0.30 | False | | |
|<ul><li>[Parse_ParallelAsync - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_ParallelAsync(Length%3a%204096%2c%20Chunks%3a%2016).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.IO.Pipelines/PipeThroughputBenchmark.cs#L49-#L56>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACl2RW2/bMAyF3wPkP3B5cYK5tntN48HA0qzYgC5D0Abb46DZdKxVlgyKahOs+++jc3nZCwXLh0cfDw0yMHqGAj5GS12S867mZO67b8gLR5g8Ib0gJQ8iIjTJCql21CpbYrLSHa4bcmHTdIHv0JZNq+g5WSny+FOqMgbN3O9sOf6KdsNNDlfZ7CaGRRPss8/h/GYSfRgOjFCompEEo1KMrFscX2QX12fZ7Cy7Wme3eXaZn2fJ7XR6OZtev8+yPMsmx07CzkljVDm2yCkF2/effH+RsDb9f8Lapw2qyqet0vYkKJ2t9aZ/eWdVq8vxn2jh2k4bxdrZpaswyiFijYRVFEP0GOyDtlV/KWpy0d8e5DPyF+3ZkS6V+aRY/dDc9D6KtHfWj/uUi77Eh1GLfY339EVf4iNqcTjiI1hxOCbDwRt05H5jySA70ehjuAvaVGsZ9olV28XwXZmAxVoeWThJAekRfTA8lwWqDQ4HafoGr40McnSAd2LOkoWH0Yjd/bY0ocLRCNIU7rdiaRBcDbU24qXtBlyQRYHfN/dAhLaSrfV5l40ihleZGsYHQXHC3JbOhNYW/+PuDve+2HOLjjUbLCKJDyXp3fFzicoHwhYtR5N/zKzv8bECAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=>)</li></ul> | 1.86 μs | 2.06 μs | 1.11 | 0.30 | False | | |
|<ul><li>[Parse_ParallelAsync - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_ParallelAsync(Length%3a%204096%2c%20Chunks%3a%201).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.IO.Pipelines/PipeThroughputBenchmark.cs#L49-#L56>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 582.33 ns | 644.30 ns | 1.11 | 0.29 | False | | |
|<ul><li>[Parse_ParallelAsync - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_ParallelAsync(Length%3a%20128%2c%20Chunks%3a%2016).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.IO.Pipelines/PipeThroughputBenchmark.cs#L49-#L56>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.08 μs | 1.32 μs | 1.22 | 0.30 | False | | |
|<ul><li>[Parse_SequentialAsync - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_SequentialAsync(Length%3a%20128%2c%20Chunks%3a%201).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.IO.Pipelines/PipeThroughputBenchmark.cs#L86-#L105>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 78.60 ns | 87.63 ns | 1.11 | 0.26 | False | | |
|<ul><li>[Parse_SequentialAsync - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_SequentialAsync(Length%3a%20128%2c%20Chunks%3a%2016).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.IO.Pipelines/PipeThroughputBenchmark.cs#L86-#L105>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 232.07 ns | 263.65 ns | 1.14 | 0.12 | False | | |
|<ul><li>[Parse_ParallelAsync - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_ParallelAsync(Length%3a%20128%2c%20Chunks%3a%201).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.IO.Pipelines/PipeThroughputBenchmark.cs#L49-#L56>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 257.05 ns | 277.67 ns | 1.08 | 0.21 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark_002.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark_003.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark_004.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark_005.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark_006.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark_007.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.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 'Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark*'
```

<details>

### Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_SequentialAsync(Length: 4096, Chunks: 1)

#### ETL Files

#### Histogram

#### JIT Disasms

### Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_ParallelAsync(Length: 4096, Chunks: 16)

#### ETL Files

#### Histogram

#### JIT Disasms

### Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_ParallelAsync(Length: 4096, Chunks: 1)

#### ETL Files

#### Histogram

#### JIT Disasms

### Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_ParallelAsync(Length: 128, Chunks: 16)

#### ETL Files

#### Histogram

#### JIT Disasms

### Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_SequentialAsync(Length: 128, Chunks: 1)

#### ETL Files

#### Histogram

#### JIT Disasms

### Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_SequentialAsync(Length: 128, Chunks: 16)

#### ETL Files

#### Histogram

#### JIT Disasms

### Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_ParallelAsync(Length: 128, Chunks: 1)

#### 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 | ViperUbuntu
Baseline | [5219f86d5592560b51e4b226e9419089e546b7ab](https://github.com/dotnet/runtime/commit/5219f86d5592560b51e4b226e9419089e546b7ab)
Compare | [19ca5df408eb420295aa0246dbfde530a6f528b8](https://github.com/dotnet/runtime/commit/19ca5df408eb420295aa0246dbfde530a6f528b8)
Diff | [Diff](https://github.com/dotnet/runtime/compare/5219f86d5592560b51e4b226e9419089e546b7ab...19ca5df408eb420295aa0246dbfde530a6f528b8)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[SetOverride - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.SetOverride.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/Microsoft.Extensions.Caching.Memory/MemoryCacheTests.cs#L45-#L46>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 50.85 ns | 54.38 ns | 1.07 | 0.11 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.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 'Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests*'
```

<details>

### Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.SetOverride

#### 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 | ViperUbuntu
Baseline | [5219f86d5592560b51e4b226e9419089e546b7ab](https://github.com/dotnet/runtime/commit/5219f86d5592560b51e4b226e9419089e546b7ab)
Compare | [19ca5df408eb420295aa0246dbfde530a6f528b8](https://github.com/dotnet/runtime/commit/19ca5df408eb420295aa0246dbfde530a6f528b8)
Diff | [Diff](https://github.com/dotnet/runtime/compare/5219f86d5592560b51e4b226e9419089e546b7ab...19ca5df408eb420295aa0246dbfde530a6f528b8)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Threading.Tests.Perf_SemaphoreSlim

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ReleaseWaitAsync - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Threading.Tests.Perf_SemaphoreSlim.ReleaseWaitAsync.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Threading/Perf.SemaphoreSlim.cs#L24-#L29>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 20.07 ns | 22.02 ns | 1.10 | 0.18 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Threading.Tests.Perf_SemaphoreSlim_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Threading.Tests.Perf_SemaphoreSlim.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.Threading.Tests.Perf_SemaphoreSlim*'
```

<details>

### System.Threading.Tests.Perf_SemaphoreSlim.ReleaseWaitAsync

#### 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 | ViperUbuntu
Baseline | [5219f86d5592560b51e4b226e9419089e546b7ab](https://github.com/dotnet/runtime/commit/5219f86d5592560b51e4b226e9419089e546b7ab)
Compare | [19ca5df408eb420295aa0246dbfde530a6f528b8](https://github.com/dotnet/runtime/commit/19ca5df408eb420295aa0246dbfde530a6f528b8)
Diff | [Diff](https://github.com/dotnet/runtime/compare/5219f86d5592560b51e4b226e9419089e546b7ab...19ca5df408eb420295aa0246dbfde530a6f528b8)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Threading.Channels.Tests.SpscUnboundedChannelPerfTests

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ReadAsyncThenWriteAsync - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Threading.Channels.Tests.SpscUnboundedChannelPerfTests.ReadAsyncThenWriteAsync.html>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 39.06 ns | 41.59 ns | 1.06 | 0.11 | False | | |
|<ul><li>[TryWriteThenTryRead - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Threading.Channels.Tests.SpscUnboundedChannelPerfTests.TryWriteThenTryRead.html>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 19.12 ns | 22.54 ns | 1.18 | 0.23 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Threading.Channels.Tests.SpscUnboundedChannelPerfTests_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Threading.Channels.Tests.SpscUnboundedChannelPerfTests_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Threading.Channels.Tests.SpscUnboundedChannelPerfTests.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.Threading.Channels.Tests.SpscUnboundedChannelPerfTests*'
```

<details>

### System.Threading.Channels.Tests.SpscUnboundedChannelPerfTests.ReadAsyncThenWriteAsync

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Threading.Channels.Tests.SpscUnboundedChannelPerfTests.TryWriteThenTryRead

#### 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 | ViperUbuntu
Baseline | [5219f86d5592560b51e4b226e9419089e546b7ab](https://github.com/dotnet/runtime/commit/5219f86d5592560b51e4b226e9419089e546b7ab)
Compare | [19ca5df408eb420295aa0246dbfde530a6f528b8](https://github.com/dotnet/runtime/commit/19ca5df408eb420295aa0246dbfde530a6f528b8)
Diff | [Diff](https://github.com/dotnet/runtime/compare/5219f86d5592560b51e4b226e9419089e546b7ab...19ca5df408eb420295aa0246dbfde530a6f528b8)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.Concurrent.Count&lt;Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Dictionary - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Collections.Concurrent.Count(Int32).Dictionary(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Concurrent/Count.cs#L28-#L29>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 227.04 ns | 259.91 ns | 1.14 | 0.09 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.Concurrent.Count%28Int32%29_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.Concurrent.Count%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.Concurrent.Count<Int32>*'
```

<details>

### System.Collections.Concurrent.Count&lt;Int32&gt;.Dictionary(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 | ViperUbuntu
Baseline | [5219f86d5592560b51e4b226e9419089e546b7ab](https://github.com/dotnet/runtime/commit/5219f86d5592560b51e4b226e9419089e546b7ab)
Compare | [19ca5df408eb420295aa0246dbfde530a6f528b8](https://github.com/dotnet/runtime/commit/19ca5df408eb420295aa0246dbfde530a6f528b8)
Diff | [Diff](https://github.com/dotnet/runtime/compare/5219f86d5592560b51e4b226e9419089e546b7ab...19ca5df408eb420295aa0246dbfde530a6f528b8)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.IO.Pipelines.Tests.Perf_Pipe

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[SyncReadAsyncWithCancellationToken - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.IO.Pipelines.Tests.Perf_Pipe.SyncReadAsyncWithCancellationToken.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.IO.Pipelines/Perf.Pipe.cs#L78-#L89>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 268.07 μs | 312.58 μs | 1.17 | 0.11 | False | | |
|<ul><li>[ReadAsyncWithCancellationToken - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.IO.Pipelines.Tests.Perf_Pipe.ReadAsyncWithCancellationToken.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.IO.Pipelines/Perf.Pipe.cs#L99-#L115>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.30 ms | 1.43 ms | 1.10 | 0.23 | False | | |
|<ul><li>[SyncReadAsync - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.IO.Pipelines.Tests.Perf_Pipe.SyncReadAsync.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.IO.Pipelines/Perf.Pipe.cs#L30-#L41>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACl1RTY/TMBC9V+p/GHpxK7KJVbaoFFliWVaA0GpXbQVHZJJJY+TYlT1hG7H89x036YXLjD0fb968sUhAGAkUfBC7PhK2+deH/NEc0RqHMd9zMuaPGOqfKZjvelduUVc3kR/i/XRiGUHXhIEhKk1IpsX5Ui5XV/Ldlbzey/VGrjbXq/yNXMu3y/VrKTdSLsbOgEfPjaLy5JCK0LnUf8H9FbQrm5QPWMei4bmxaLVxl4LSu9oc0uTe6daU87/i1rdHYzUZ7+59hWIDggwGrEQGYtu5b8ZVKcjVwYt/ichnpC8mkg+m1PaTJv3DUJNwdDDRuzhPCqlksmFVdbbZmb1KJhupqsFlIzE1uMV08gzH4H9jSbDDYDBm8LEzttrzsjvS7TGD79p2qJLct55VwLDF2Fm6+YNBH3A6KYpneGp4kREBXjE4sRYRZjPyd6fSdhXOZlAUcHdiSIvga6iNZSzjDuA7PhTEc3MiFNBVfLWkd9noQPDEW8N8KFAXmqfS26516n+6/RCP6syb68iQRSVYPmSl+/F7jzp2AVt0JBYvEPy/om0CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=>)</li></ul> | 264.24 μs | 310.86 μs | 1.18 | 0.07 | False | | |
|<ul><li>[ReadAsync - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.IO.Pipelines.Tests.Perf_Pipe.ReadAsync.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.IO.Pipelines/Perf.Pipe.cs#L50-#L66>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.11 ms | 1.23 ms | 1.10 | 0.18 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.IO.Pipelines.Tests.Perf_Pipe_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.IO.Pipelines.Tests.Perf_Pipe_002.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.IO.Pipelines.Tests.Perf_Pipe_003.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.IO.Pipelines.Tests.Perf_Pipe_004.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.IO.Pipelines.Tests.Perf_Pipe.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.Pipelines.Tests.Perf_Pipe*'
```

<details>

### System.IO.Pipelines.Tests.Perf_Pipe.SyncReadAsyncWithCancellationToken

#### ETL Files

#### Histogram

#### JIT Disasms

### System.IO.Pipelines.Tests.Perf_Pipe.ReadAsyncWithCancellationToken

#### ETL Files

#### Histogram

#### JIT Disasms

### System.IO.Pipelines.Tests.Perf_Pipe.SyncReadAsync

#### ETL Files

#### Histogram

#### JIT Disasms

### System.IO.Pipelines.Tests.Perf_Pipe.ReadAsync

#### 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 | ViperUbuntu
Baseline | [5219f86d5592560b51e4b226e9419089e546b7ab](https://github.com/dotnet/runtime/commit/5219f86d5592560b51e4b226e9419089e546b7ab)
Compare | [19ca5df408eb420295aa0246dbfde530a6f528b8](https://github.com/dotnet/runtime/commit/19ca5df408eb420295aa0246dbfde530a6f528b8)
Diff | [Diff](https://github.com/dotnet/runtime/compare/5219f86d5592560b51e4b226e9419089e546b7ab...19ca5df408eb420295aa0246dbfde530a6f528b8)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.Concurrent.AddRemoveFromSameThreads&lt;String&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/ViperUbuntu/System.Collections.Concurrent.AddRemoveFromSameThreads(String).ConcurrentBag(Size%3a%202000000).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Concurrent/AddRemoveFromSameThreads.cs#L52-#L53>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 255.87 ms | 290.30 ms | 1.13 | 0.10 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.Concurrent.AddRemoveFromSameThreads%28String%29_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.Concurrent.AddRemoveFromSameThreads%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.Concurrent.AddRemoveFromSameThreads<String>*'
```

<details>

### System.Collections.Concurrent.AddRemoveFromSameThreads&lt;String&gt;.ConcurrentBag(Size: 2000000)

#### 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 | ViperUbuntu
Baseline | [5219f86d5592560b51e4b226e9419089e546b7ab](https://github.com/dotnet/runtime/commit/5219f86d5592560b51e4b226e9419089e546b7ab)
Compare | [19ca5df408eb420295aa0246dbfde530a6f528b8](https://github.com/dotnet/runtime/commit/19ca5df408eb420295aa0246dbfde530a6f528b8)
Diff | [Diff](https://github.com/dotnet/runtime/compare/5219f86d5592560b51e4b226e9419089e546b7ab...19ca5df408eb420295aa0246dbfde530a6f528b8)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Threading.Channels.Tests.BoundedChannelPerfTests

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ReadAsyncThenWriteAsync - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Threading.Channels.Tests.BoundedChannelPerfTests.ReadAsyncThenWriteAsync.html>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 37.02 ns | 41.75 ns | 1.13 | 0.12 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Threading.Channels.Tests.BoundedChannelPerfTests_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Threading.Channels.Tests.BoundedChannelPerfTests.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.Threading.Channels.Tests.BoundedChannelPerfTests*'
```

<details>

### System.Threading.Channels.Tests.BoundedChannelPerfTests.ReadAsyncThenWriteAsync

#### 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 | ViperUbuntu
Baseline | [5219f86d5592560b51e4b226e9419089e546b7ab](https://github.com/dotnet/runtime/commit/5219f86d5592560b51e4b226e9419089e546b7ab)
Compare | [19ca5df408eb420295aa0246dbfde530a6f528b8](https://github.com/dotnet/runtime/commit/19ca5df408eb420295aa0246dbfde530a6f528b8)
Diff | [Diff](https://github.com/dotnet/runtime/compare/5219f86d5592560b51e4b226e9419089e546b7ab...19ca5df408eb420295aa0246dbfde530a6f528b8)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.IndexerSet&lt;String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ConcurrentDictionary - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Collections.IndexerSet(String).ConcurrentDictionary(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Indexer/IndexerSet.cs#L137-#L145>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 9.87 μs | 10.94 μs | 1.11 | 0.08 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.IndexerSet%28String%29_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.IndexerSet%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.IndexerSet<String>*'
```

<details>

### System.Collections.IndexerSet&lt;String&gt;.ConcurrentDictionary(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 | ViperUbuntu
Baseline | [5219f86d5592560b51e4b226e9419089e546b7ab](https://github.com/dotnet/runtime/commit/5219f86d5592560b51e4b226e9419089e546b7ab)
Compare | [19ca5df408eb420295aa0246dbfde530a6f528b8](https://github.com/dotnet/runtime/commit/19ca5df408eb420295aa0246dbfde530a6f528b8)
Diff | [Diff](https://github.com/dotnet/runtime/compare/5219f86d5592560b51e4b226e9419089e546b7ab...19ca5df408eb420295aa0246dbfde530a6f528b8)
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/ViperUbuntu/System.Buffers.Tests.RentReturnArrayPoolTests(Object).MultipleSerial(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#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> | 244.48 ns | 263.12 ns | 1.08 | 0.11 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Buffers.Tests.RentReturnArrayPoolTests%28Object%29_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_04_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_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<Object>*'
```

<details>

### System.Buffers.Tests.RentReturnArrayPoolTests&lt;Object&gt;.MultipleSerial(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>

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	ViperUbuntu
Baseline	5219f86d5592560b51e4b226e9419089e546b7ab
Compare	19ca5df408eb420295aa0246dbfde530a6f528b8
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
IsMatch_Multithreading - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	13.63 ms	14.67 ms	1.08	0.68	False
IsMatch_Multithreading - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	41.18 ms	48.26 ms	1.17	0.27	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
Parse_SequentialAsync - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	79.37 ns	88.27 ns	1.11	0.30	False
Parse_ParallelAsync - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.86 μs	2.06 μs	1.11	0.30	False
Parse_ParallelAsync - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	582.33 ns	644.30 ns	1.11	0.29	False
Parse_ParallelAsync - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.08 μs	1.32 μs	1.22	0.30	False
Parse_SequentialAsync - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	78.60 ns	87.63 ns	1.11	0.26	False
Parse_SequentialAsync - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	232.07 ns	263.65 ns	1.14	0.12	False
Parse_ParallelAsync - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	257.05 ns	277.67 ns	1.08	0.21	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
ReadAsyncThenWriteAsync - Duration of single invocation ADX - Test Multi Config Graph	39.06 ns	41.59 ns	1.06	0.11	False
TryWriteThenTryRead - Duration of single invocation ADX - Test Multi Config Graph	19.12 ns	22.54 ns	1.18	0.23	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
SyncReadAsyncWithCancellationToken - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	268.07 μs	312.58 μs	1.17	0.11	False
ReadAsyncWithCancellationToken - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.30 ms	1.43 ms	1.10	0.23	False
SyncReadAsync - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	264.24 μs	310.86 μs	1.18	0.07	False
ReadAsync - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.11 ms	1.23 ms	1.10	0.18	False

[Perf] Linux/x64: 27 Regressions from Monitor change on 10/30/2025 8:48:51 AM +00:00 #121350

Description

Run Information

Regressions in System.Text.RegularExpressions.Tests.Perf_Regex_Cache

Repro

System.Text.RegularExpressions.Tests.Perf_Regex_Cache.IsMatch_Multithreading(total: 40000, unique: 7, cacheSize: 0)

ETL Files

Histogram

JIT Disasms

System.Text.RegularExpressions.Tests.Perf_Regex_Cache.IsMatch_Multithreading(total: 400000, unique: 1, cacheSize: 15)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Collections.IndexerSet<Int32>

Repro

System.Collections.IndexerSet<Int32>.ConcurrentDictionary(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Collections.Concurrent.IsEmpty<String>

Repro

System.Collections.Concurrent.IsEmpty<String>.Dictionary(Size: 0)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark

Repro

Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_SequentialAsync(Length: 4096, Chunks: 1)

ETL Files

Histogram

JIT Disasms

Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_ParallelAsync(Length: 4096, Chunks: 16)

ETL Files

Histogram

JIT Disasms

Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_ParallelAsync(Length: 4096, Chunks: 1)

ETL Files

Histogram

JIT Disasms

Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_ParallelAsync(Length: 128, Chunks: 16)

ETL Files

Histogram

JIT Disasms

Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_SequentialAsync(Length: 128, Chunks: 1)

ETL Files

Histogram

JIT Disasms

Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_SequentialAsync(Length: 128, Chunks: 16)

ETL Files

Histogram

JIT Disasms

Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_ParallelAsync(Length: 128, Chunks: 1)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests

Repro

Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.SetOverride

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Threading.Tests.Perf_SemaphoreSlim

Repro

System.Threading.Tests.Perf_SemaphoreSlim.ReleaseWaitAsync

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Threading.Channels.Tests.SpscUnboundedChannelPerfTests