[Perf] Linux/x64: 32 Regressions on 6/4/2025 5:12:34 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [dda9996426c9a88c6f6d692b5094326a9511b072](https://github.com/dotnet/runtime/commit/dda9996426c9a88c6f6d692b5094326a9511b072)
Compare | [3427e5fe067db2656d2e59d5d6957bbd98adb9b6](https://github.com/dotnet/runtime/commit/3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Diff | [Diff](https://github.com/dotnet/runtime/compare/dda9996426c9a88c6f6d692b5094326a9511b072...3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.Tests.Perf_Dictionary

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Clone - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Collections.Tests.Perf_Dictionary.Clone(Items%3a%203000).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Dictionary/Perf_Dictionary.cs#L26-#L27>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 6.49 μs | 7.34 μs | 1.13 | 0.00 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.Tests.Perf_Dictionary_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.Tests.Perf_Dictionary.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.Tests.Perf_Dictionary*'
```

<details>

### System.Collections.Tests.Perf_Dictionary.Clone(Items: 3000)

#### 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 | [dda9996426c9a88c6f6d692b5094326a9511b072](https://github.com/dotnet/runtime/commit/dda9996426c9a88c6f6d692b5094326a9511b072)
Compare | [3427e5fe067db2656d2e59d5d6957bbd98adb9b6](https://github.com/dotnet/runtime/commit/3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Diff | [Diff](https://github.com/dotnet/runtime/compare/dda9996426c9a88c6f6d692b5094326a9511b072...3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Tests.Perf_UInt64

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ToString - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Tests.Perf_UInt64.ToString(value%3a%2018446744073709551615).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime/Perf.UInt64.cs#L27-#L30>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 15.79 ns | 17.22 ns | 1.09 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Tests.Perf_UInt64_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Tests.Perf_UInt64.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_UInt64*'
```

<details>

### System.Tests.Perf_UInt64.ToString(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 | ViperUbuntu
Baseline | [dda9996426c9a88c6f6d692b5094326a9511b072](https://github.com/dotnet/runtime/commit/dda9996426c9a88c6f6d692b5094326a9511b072)
Compare | [3427e5fe067db2656d2e59d5d6957bbd98adb9b6](https://github.com/dotnet/runtime/commit/3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Diff | [Diff](https://github.com/dotnet/runtime/compare/dda9996426c9a88c6f6d692b5094326a9511b072...3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.CtorFromCollection&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.CtorFromCollection(Int32).Dictionary(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Create/CtorFromCollection.cs#L47-#L48>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.19 μs | 1.31 μs | 1.11 | 0.00 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.CtorFromCollection%28Int32%29_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.CtorFromCollection%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.CtorFromCollection&lt;Int32&gt;*'
```

<details>

### System.Collections.CtorFromCollection&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 | [dda9996426c9a88c6f6d692b5094326a9511b072](https://github.com/dotnet/runtime/commit/dda9996426c9a88c6f6d692b5094326a9511b072)
Compare | [3427e5fe067db2656d2e59d5d6957bbd98adb9b6](https://github.com/dotnet/runtime/commit/3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Diff | [Diff](https://github.com/dotnet/runtime/compare/dda9996426c9a88c6f6d692b5094326a9511b072...3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in ByteMark

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[BenchNeuralJagged - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/ByteMark.BenchNeuralJagged.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/Bytemark/ByteMark.cs#L499-#L508>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 396.03 ms | 463.69 ms | 1.17 | 0.00 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/ByteMark_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/ByteMark.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 'ByteMark*'
```

<details>

### ByteMark.BenchNeuralJagged

#### 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 | [dda9996426c9a88c6f6d692b5094326a9511b072](https://github.com/dotnet/runtime/commit/dda9996426c9a88c6f6d692b5094326a9511b072)
Compare | [3427e5fe067db2656d2e59d5d6957bbd98adb9b6](https://github.com/dotnet/runtime/commit/3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Diff | [Diff](https://github.com/dotnet/runtime/compare/dda9996426c9a88c6f6d692b5094326a9511b072...3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.Perf_Frozen&lt;NotKnownComparable&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[TryGetValue_True - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Collections.Perf_Frozen(NotKnownComparable).TryGetValue_True(Count%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Frozen/Perf_Frozen.cs#L82-#L91>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.42 μs | 1.53 μs | 1.07 | 0.00 | False | | |
|<ul><li>[Contains_True - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Collections.Perf_Frozen(NotKnownComparable).Contains_True(Count%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Frozen/Perf_Frozen.cs#L96-#L105>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.23 μs | 1.32 μs | 1.08 | 0.00 | False | | |
|<ul><li>[TryGetValue_True - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Collections.Perf_Frozen(NotKnownComparable).TryGetValue_True(Count%3a%2064).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Frozen/Perf_Frozen.cs#L82-#L91>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 171.71 ns | 183.43 ns | 1.07 | 0.01 | False | | |
|<ul><li>[Contains_True - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Collections.Perf_Frozen(NotKnownComparable).Contains_True(Count%3a%2064).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Frozen/Perf_Frozen.cs#L96-#L105>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 148.82 ns | 157.58 ns | 1.06 | 0.00 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.Perf_Frozen%28NotKnownComparable%29_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.Perf_Frozen%28NotKnownComparable%29_002.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.Perf_Frozen%28NotKnownComparable%29_003.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.Perf_Frozen%28NotKnownComparable%29_004.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.Perf_Frozen%28NotKnownComparable%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.Perf_Frozen&lt;NotKnownComparable&gt;*'
```

<details>

### System.Collections.Perf_Frozen&lt;NotKnownComparable&gt;.TryGetValue_True(Count: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.Perf_Frozen&lt;NotKnownComparable&gt;.Contains_True(Count: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.Perf_Frozen&lt;NotKnownComparable&gt;.TryGetValue_True(Count: 64)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.Perf_Frozen&lt;NotKnownComparable&gt;.Contains_True(Count: 64)

#### 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 | [dda9996426c9a88c6f6d692b5094326a9511b072](https://github.com/dotnet/runtime/commit/dda9996426c9a88c6f6d692b5094326a9511b072)
Compare | [3427e5fe067db2656d2e59d5d6957bbd98adb9b6](https://github.com/dotnet/runtime/commit/3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Diff | [Diff](https://github.com/dotnet/runtime/compare/dda9996426c9a88c6f6d692b5094326a9511b072...3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in Benchstone.BenchF.Simpsn

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Test - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/Benchstone.BenchF.Simpsn.Test.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/Benchstones/BenchF/Simpsn.cs#L17-#L57>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 83.73 ms | 155.89 ms | 1.86 | 0.04 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/Benchstone.BenchF.Simpsn_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/Benchstone.BenchF.Simpsn.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 'Benchstone.BenchF.Simpsn*'
```

<details>

### Benchstone.BenchF.Simpsn.Test

#### 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 | [dda9996426c9a88c6f6d692b5094326a9511b072](https://github.com/dotnet/runtime/commit/dda9996426c9a88c6f6d692b5094326a9511b072)
Compare | [3427e5fe067db2656d2e59d5d6957bbd98adb9b6](https://github.com/dotnet/runtime/commit/3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Diff | [Diff](https://github.com/dotnet/runtime/compare/dda9996426c9a88c6f6d692b5094326a9511b072...3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in Benchstone.BenchI.AddArray2

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Test - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/Benchstone.BenchI.AddArray2.Test.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/Benchstones/BenchI/AddArray2.cs#L94-#L95>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 7.85 ms | 9.08 ms | 1.16 | 0.00 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/Benchstone.BenchI.AddArray2_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/Benchstone.BenchI.AddArray2.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 'Benchstone.BenchI.AddArray2*'
```

<details>

### Benchstone.BenchI.AddArray2.Test

#### 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 | [dda9996426c9a88c6f6d692b5094326a9511b072](https://github.com/dotnet/runtime/commit/dda9996426c9a88c6f6d692b5094326a9511b072)
Compare | [3427e5fe067db2656d2e59d5d6957bbd98adb9b6](https://github.com/dotnet/runtime/commit/3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Diff | [Diff](https://github.com/dotnet/runtime/compare/dda9996426c9a88c6f6d692b5094326a9511b072...3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Linq.Tests.Perf_Enumerable

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[SingleWithPredicate_FirstElementMatches - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Linq.Tests.Perf_Enumerable.SingleWithPredicate_FirstElementMatches(input%3a%20Array).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Linq/Perf.Enumerable.cs#L148-#L150>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 31.01 ns | 39.03 ns | 1.26 | 0.14 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Linq.Tests.Perf_Enumerable_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Linq.Tests.Perf_Enumerable.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.Linq.Tests.Perf_Enumerable*'
```

<details>

### System.Linq.Tests.Perf_Enumerable.SingleWithPredicate_FirstElementMatches(input: Array)

#### 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 | [dda9996426c9a88c6f6d692b5094326a9511b072](https://github.com/dotnet/runtime/commit/dda9996426c9a88c6f6d692b5094326a9511b072)
Compare | [3427e5fe067db2656d2e59d5d6957bbd98adb9b6](https://github.com/dotnet/runtime/commit/3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Diff | [Diff](https://github.com/dotnet/runtime/compare/dda9996426c9a88c6f6d692b5094326a9511b072...3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Tests.Perf_Char

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Char_IsUpper - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Tests.Perf_Char.Char_IsUpper(input%3a%20%22Good%20afternoon%2c%20Constable!%22).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime/Perf.Char.cs#L38-#L51>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 10.49 ns | 14.95 ns | 1.43 | 0.15 | False | | |
|<ul><li>[Char_IsLower - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Tests.Perf_Char.Char_IsLower(input%3a%20%22Good%20afternoon%2c%20Constable!%22).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime/Perf.Char.cs#L23-#L36>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 13.56 ns | 18.95 ns | 1.40 | 0.11 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Tests.Perf_Char_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Tests.Perf_Char_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Tests.Perf_Char.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_Char*'
```

<details>

### System.Tests.Perf_Char.Char_IsUpper(input: "Good afternoon, Constable!")

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Tests.Perf_Char.Char_IsLower(input: "Good afternoon, Constable!")

#### 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 | [dda9996426c9a88c6f6d692b5094326a9511b072](https://github.com/dotnet/runtime/commit/dda9996426c9a88c6f6d692b5094326a9511b072)
Compare | [3427e5fe067db2656d2e59d5d6957bbd98adb9b6](https://github.com/dotnet/runtime/commit/3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Diff | [Diff](https://github.com/dotnet/runtime/compare/dda9996426c9a88c6f6d692b5094326a9511b072...3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Tests.Perf_Int32

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ToStringHex - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Tests.Perf_Int32.ToStringHex(value%3a%20-2147483648).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime/Perf.Int32.cs#L33-#L36>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 11.90 ns | 14.73 ns | 1.24 | 0.20 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Tests.Perf_Int32_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Tests.Perf_Int32.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_Int32*'
```

<details>

### System.Tests.Perf_Int32.ToStringHex(value: -2147483648)

#### 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 | [dda9996426c9a88c6f6d692b5094326a9511b072](https://github.com/dotnet/runtime/commit/dda9996426c9a88c6f6d692b5094326a9511b072)
Compare | [3427e5fe067db2656d2e59d5d6957bbd98adb9b6](https://github.com/dotnet/runtime/commit/3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Diff | [Diff](https://github.com/dotnet/runtime/compare/dda9996426c9a88c6f6d692b5094326a9511b072...3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in SciMark2.kernel

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[benchSparseMult - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/SciMark2.kernel.benchSparseMult.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/SciMark/kernel.cs#L120-#L126>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 380.82 ms | 418.71 ms | 1.10 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/SciMark2.kernel_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/SciMark2.kernel.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 'SciMark2.kernel*'
```

<details>

### SciMark2.kernel.benchSparseMult

#### 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 | [dda9996426c9a88c6f6d692b5094326a9511b072](https://github.com/dotnet/runtime/commit/dda9996426c9a88c6f6d692b5094326a9511b072)
Compare | [3427e5fe067db2656d2e59d5d6957bbd98adb9b6](https://github.com/dotnet/runtime/commit/3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Diff | [Diff](https://github.com/dotnet/runtime/compare/dda9996426c9a88c6f6d692b5094326a9511b072...3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in Benchstone.BenchI.BubbleSort2

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Test - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/Benchstone.BenchI.BubbleSort2.Test.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/Benchstones/BenchI/BubbleSort2.cs#L30-#L57>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 17.25 ms | 21.13 ms | 1.22 | 0.58 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/Benchstone.BenchI.BubbleSort2_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/Benchstone.BenchI.BubbleSort2.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 'Benchstone.BenchI.BubbleSort2*'
```

<details>

### Benchstone.BenchI.BubbleSort2.Test

#### 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 | [dda9996426c9a88c6f6d692b5094326a9511b072](https://github.com/dotnet/runtime/commit/dda9996426c9a88c6f6d692b5094326a9511b072)
Compare | [3427e5fe067db2656d2e59d5d6957bbd98adb9b6](https://github.com/dotnet/runtime/commit/3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Diff | [Diff](https://github.com/dotnet/runtime/compare/dda9996426c9a88c6f6d692b5094326a9511b072...3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.ContainsTrue&lt;Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[SortedSet - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Collections.ContainsTrue(Int32).SortedSet(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Contains/ContainsTrue.cs#L182-#L191>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 5.07 μs | 5.48 μs | 1.08 | 0.28 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.ContainsTrue%28Int32%29_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.ContainsTrue%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.ContainsTrue&lt;Int32&gt;*'
```

<details>

### System.Collections.ContainsTrue&lt;Int32&gt;.SortedSet(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 | [dda9996426c9a88c6f6d692b5094326a9511b072](https://github.com/dotnet/runtime/commit/dda9996426c9a88c6f6d692b5094326a9511b072)
Compare | [3427e5fe067db2656d2e59d5d6957bbd98adb9b6](https://github.com/dotnet/runtime/commit/3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Diff | [Diff](https://github.com/dotnet/runtime/compare/dda9996426c9a88c6f6d692b5094326a9511b072...3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.Tests.Perf_PriorityQueue&lt;Int32, Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Dequeue_And_Enqueue - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Collections.Tests.Perf_PriorityQueue(Int32%2c%20Int32).Dequeue_And_Enqueue(Size%3a%20100).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/PriorityQueue/Perf_PriorityQueue.cs#L56-#L83>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACl1RwY7TMBC9V+o/DL24Fdkk7bJoKRixdCtAaKVlW8GxMsmkNXLsYo/ZFpZ/Z5ymFy4zyXjemzdvDBIQBgIJ78TqGAjbfOGMwYq0syFf81vI79E3m3uvndd0/BIx4ptPli5nGXTpbX6LP1N1c2PrzdJ23+OV/o1zmJblRLweDgwPUg2h50m1IiTd4nhWzq4uyhcX03JdvppflfPpNJ++vJ6V15fPy3LO0B7pce8YKGpHFqnw0Sb8mfe7V7bapXePTSh2qOpQtErbc0PlbKO3afLRqlZX4z9i4dq9NipteedqFHMQpNFjLTIQD9F+1rZORe72TvxNQj4gfdSB2IRKmVtF6pumXeJRXgc2a5yMlClkp1VlF7NOvUwh66XKU8p6YfKUJsPBE+y9+8Hmwwq9xpDB+6hNveZlV6TafQZflYko01kWjl1A/4AhGrr5hV5tcTgoiid43PEiPQM8Y3JiLwKMRuSWh8rEGkcjKApYHpjSILgGGm2YS9stuMiHgtCBkyCPtuarJb+rnfIEj7w1jE8N8izzUDkTWyv/l3s81YPsdHMfaTIoBduH7PSx/71DFaLHFi2JyT9V6J8XlAIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=>)</li></ul> | 2.50 μs | 2.69 μs | 1.08 | 0.02 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.Tests.Perf_PriorityQueue%28Int32%2C%20Int32%29_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.Tests.Perf_PriorityQueue%28Int32%2C%20Int32%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.Tests.Perf_PriorityQueue&lt;Int32, Int32&gt;*'
```

<details>

### System.Collections.Tests.Perf_PriorityQueue&lt;Int32, Int32&gt;.Dequeue_And_Enqueue(Size: 100)

#### 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 | [dda9996426c9a88c6f6d692b5094326a9511b072](https://github.com/dotnet/runtime/commit/dda9996426c9a88c6f6d692b5094326a9511b072)
Compare | [3427e5fe067db2656d2e59d5d6957bbd98adb9b6](https://github.com/dotnet/runtime/commit/3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Diff | [Diff](https://github.com/dotnet/runtime/compare/dda9996426c9a88c6f6d692b5094326a9511b072...3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.Perf_Frozen&lt;Int16&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[TryGetValue_True - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Collections.Perf_Frozen(Int16).TryGetValue_True(Count%3a%2064).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Frozen/Perf_Frozen.cs#L82-#L91>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 171.55 ns | 181.60 ns | 1.06 | 0.00 | False | | |
|<ul><li>[Contains_True - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Collections.Perf_Frozen(Int16).Contains_True(Count%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Frozen/Perf_Frozen.cs#L96-#L105>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.23 μs | 1.36 μs | 1.10 | 0.00 | False | | |
|<ul><li>[Contains_True - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Collections.Perf_Frozen(Int16).Contains_True(Count%3a%2064).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Frozen/Perf_Frozen.cs#L96-#L105>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 149.49 ns | 162.87 ns | 1.09 | 0.01 | False | | |
|<ul><li>[TryGetValue_True - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Collections.Perf_Frozen(Int16).TryGetValue_True(Count%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Frozen/Perf_Frozen.cs#L82-#L91>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.42 μs | 1.50 μs | 1.06 | 0.00 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.Perf_Frozen%28Int16%29_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.Perf_Frozen%28Int16%29_002.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.Perf_Frozen%28Int16%29_003.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.Perf_Frozen%28Int16%29_004.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Collections.Perf_Frozen%28Int16%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.Perf_Frozen&lt;Int16&gt;*'
```

<details>

### System.Collections.Perf_Frozen&lt;Int16&gt;.TryGetValue_True(Count: 64)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.Perf_Frozen&lt;Int16&gt;.Contains_True(Count: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.Perf_Frozen&lt;Int16&gt;.Contains_True(Count: 64)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.Perf_Frozen&lt;Int16&gt;.TryGetValue_True(Count: 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 | [dda9996426c9a88c6f6d692b5094326a9511b072](https://github.com/dotnet/runtime/commit/dda9996426c9a88c6f6d692b5094326a9511b072)
Compare | [3427e5fe067db2656d2e59d5d6957bbd98adb9b6](https://github.com/dotnet/runtime/commit/3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Diff | [Diff](https://github.com/dotnet/runtime/compare/dda9996426c9a88c6f6d692b5094326a9511b072...3427e5fe067db2656d2e59d5d6957bbd98adb9b6)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in Benchstone.BenchI.XposMatrix

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Test - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/Benchstone.BenchI.XposMatrix.Test.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/Benchstones/BenchI/XposMatrix.cs#L37-#L59>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 11.18 μs | 13.12 μs | 1.17 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/Benchstone.BenchI.XposMatrix_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_10_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/Benchstone.BenchI.XposMatrix.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 'Benchstone.BenchI.XposMatrix*'
```

<details>

### Benchstone.BenchI.XposMatrix.Test

#### 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	dda9996426c9a88c6f6d692b5094326a9511b072
Compare	3427e5fe067db2656d2e59d5d6957bbd98adb9b6
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
TryGetValue_True - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.42 μs	1.53 μs	1.07	0.00	False
Contains_True - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.23 μs	1.32 μs	1.08	0.00	False
TryGetValue_True - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	171.71 ns	183.43 ns	1.07	0.01	False
Contains_True - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	148.82 ns	157.58 ns	1.06	0.00	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Char_IsUpper - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	10.49 ns	14.95 ns	1.43	0.15	False
Char_IsLower - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	13.56 ns	18.95 ns	1.40	0.11	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
TryGetValue_True - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	171.55 ns	181.60 ns	1.06	0.00	False
Contains_True - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.23 μs	1.36 μs	1.10	0.00	False
Contains_True - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	149.49 ns	162.87 ns	1.09	0.01	False
TryGetValue_True - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.42 μs	1.50 μs	1.06	0.00	False

[Perf] Linux/x64: 32 Regressions on 6/4/2025 5:12:34 PM +00:00 #116486

Description

Run Information

Regressions in System.Collections.Tests.Perf_Dictionary

Repro

System.Collections.Tests.Perf_Dictionary.Clone(Items: 3000)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Tests.Perf_UInt64

Repro

System.Tests.Perf_UInt64.ToString(value: 18446744073709551615)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Collections.CtorFromCollection<Int32>

Repro

System.Collections.CtorFromCollection<Int32>.Dictionary(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in ByteMark

Repro

ByteMark.BenchNeuralJagged

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Collections.Perf_Frozen<NotKnownComparable>

Repro

System.Collections.Perf_Frozen<NotKnownComparable>.TryGetValue_True(Count: 512)

ETL Files

Histogram

JIT Disasms

System.Collections.Perf_Frozen<NotKnownComparable>.Contains_True(Count: 512)

ETL Files

Histogram

JIT Disasms

System.Collections.Perf_Frozen<NotKnownComparable>.TryGetValue_True(Count: 64)

ETL Files

Histogram

JIT Disasms

System.Collections.Perf_Frozen<NotKnownComparable>.Contains_True(Count: 64)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in Benchstone.BenchF.Simpsn

Repro

Benchstone.BenchF.Simpsn.Test

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in Benchstone.BenchI.AddArray2

Repro

Benchstone.BenchI.AddArray2.Test

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Linq.Tests.Perf_Enumerable

Repro

System.Linq.Tests.Perf_Enumerable.SingleWithPredicate_FirstElementMatches(input: Array)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Tests.Perf_Char