[Perf] Linux/x64: 11 Regressions on 5/10/2025 5:40:58 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [e67e997094b65c8ed7289b00f2304288d8f75a12](https://github.com/dotnet/runtime/commit/e67e997094b65c8ed7289b00f2304288d8f75a12)
Compare | [fd8933aac237d2f3103de071ec4bc1547bfef16c](https://github.com/dotnet/runtime/commit/fd8933aac237d2f3103de071ec4bc1547bfef16c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/e67e997094b65c8ed7289b00f2304288d8f75a12...fd8933aac237d2f3103de071ec4bc1547bfef16c)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in PerfLabTests.LowLevelPerf

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ObjectStringIsString - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/PerfLabTests.LowLevelPerf.ObjectStringIsString.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/LowLevelPerf.cs#L231-#L240>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 40.69 μs | 54.23 μs | 1.33 | 0.03 | False | | |
|<ul><li>[EmptyStaticFunction - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/PerfLabTests.LowLevelPerf.EmptyStaticFunction.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/LowLevelPerf.cs#L34-#L50>)</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 | 1.41 ms | 1.27 | 0.01 | False | | |
|<ul><li>[NewDelegateClassEmptyStaticFn - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/PerfLabTests.LowLevelPerf.NewDelegateClassEmptyStaticFn.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/LowLevelPerf.cs#L255-#L262>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 641.24 μs | 795.58 μs | 1.24 | 0.31 | False | | |
|<ul><li>[ClassVirtualMethod - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/PerfLabTests.LowLevelPerf.ClassVirtualMethod.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/LowLevelPerf.cs#L173-#L184>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 135.54 μs | 162.70 μs | 1.20 | 0.03 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_13_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/PerfLabTests.LowLevelPerf_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_13_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/PerfLabTests.LowLevelPerf_002.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_13_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/PerfLabTests.LowLevelPerf_003.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_13_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/PerfLabTests.LowLevelPerf_004.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_13_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/PerfLabTests.LowLevelPerf.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'PerfLabTests.LowLevelPerf*'
```

<details>

### PerfLabTests.LowLevelPerf.ObjectStringIsString

#### ETL Files

#### Histogram

#### JIT Disasms

### PerfLabTests.LowLevelPerf.EmptyStaticFunction

#### ETL Files

#### Histogram

#### JIT Disasms

### PerfLabTests.LowLevelPerf.NewDelegateClassEmptyStaticFn

#### ETL Files

#### Histogram

#### JIT Disasms

### PerfLabTests.LowLevelPerf.ClassVirtualMethod

#### 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 | [e67e997094b65c8ed7289b00f2304288d8f75a12](https://github.com/dotnet/runtime/commit/e67e997094b65c8ed7289b00f2304288d8f75a12)
Compare | [fd8933aac237d2f3103de071ec4bc1547bfef16c](https://github.com/dotnet/runtime/commit/fd8933aac237d2f3103de071ec4bc1547bfef16c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/e67e997094b65c8ed7289b00f2304288d8f75a12...fd8933aac237d2f3103de071ec4bc1547bfef16c)
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_ToUpperInvariant - 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_ToUpperInvariant(input%3a%20%22Hello%20World!%22).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime/Perf.Char.cs#L63-#L73>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 6.59 ns | 7.61 ns | 1.15 | 0.21 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_13_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Tests.Perf_Char_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_13_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_ToUpperInvariant(input: "Hello World!")

#### 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 | [41e3612640670045e08a5957785013fbf165d95c](https://github.com/dotnet/runtime/commit/41e3612640670045e08a5957785013fbf165d95c)
Compare | [fd8933aac237d2f3103de071ec4bc1547bfef16c](https://github.com/dotnet/runtime/commit/fd8933aac237d2f3103de071ec4bc1547bfef16c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/41e3612640670045e08a5957785013fbf165d95c...fd8933aac237d2f3103de071ec4bc1547bfef16c)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.ConsoleTests.Perf_Console

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[BackgroundColor - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.ConsoleTests.Perf_Console.BackgroundColor.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Console/Perf.Console.cs#L65-#L76>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACl2RQY/TMBCF75X6H4Ze3IpsE1JRrYoswZYVSGgltK3giEw8aQyOXdljttUu/51xk164jJXJzOf3ni0SEEYCCe/F7hwJ++XWu+gt7rkdl18xtD/GzvJONb8PwSent976IN5NJ5YBqiUMTNCKkEyP87qq395Uq5s3q311u6nrTb1erlbr+na9fl1Vm6pajJsBj54XhfbkkMqQXN6/cn8G5Zou/w/YxrJDpWPZK+OuA413rTnkm89O9aaZP4ut74/GKjLePXiNYgOCDAbUogDxmNwX43Ru8nTw4m8W8gnps4nkg2mU/ahIfTfUZY4KJrLzeQ5I5lIMVuWlFhf1MpdilCqHoxiFyeFYTCcvcAz+FzYEOwwGYwF3yVi9Z7M7Uv2xgG/KJpQ58y3ny/hHjMnShz8Y1AGnk7J8gaeOjYwEeMVw4iwizGbk70+NTRpnMyhLuD8x0iL4FlpjmWXcAXzih4J4Wc6CAjrNr5bzbjoVCJ7YNcyHAXmVeWq8Tb2T/8s9D/0oL7p5jgxZlILjQ076PH4+oIopYI+OxOIfnZK65WwCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=>)</li></ul> | 12.10 ns | 13.12 ns | 1.08 | 0.12 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_13_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.ConsoleTests.Perf_Console_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_13_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.ConsoleTests.Perf_Console.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.ConsoleTests.Perf_Console*'
```

<details>

### System.ConsoleTests.Perf_Console.BackgroundColor

#### 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 | [e67e997094b65c8ed7289b00f2304288d8f75a12](https://github.com/dotnet/runtime/commit/e67e997094b65c8ed7289b00f2304288d8f75a12)
Compare | [fd8933aac237d2f3103de071ec4bc1547bfef16c](https://github.com/dotnet/runtime/commit/fd8933aac237d2f3103de071ec4bc1547bfef16c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/e67e997094b65c8ed7289b00f2304288d8f75a12...fd8933aac237d2f3103de071ec4bc1547bfef16c)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in ArrayDeAbstraction

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[foreach_static_array - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/ArrayDeAbstraction.foreach_static_array.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/DeAbstraction/Array.cs#L101-#L107>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 151.44 ns | 159.72 ns | 1.05 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_13_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/ArrayDeAbstraction_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_13_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/ArrayDeAbstraction.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 'ArrayDeAbstraction*'
```

<details>

### ArrayDeAbstraction.foreach_static_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 | [e67e997094b65c8ed7289b00f2304288d8f75a12](https://github.com/dotnet/runtime/commit/e67e997094b65c8ed7289b00f2304288d8f75a12)
Compare | [fd8933aac237d2f3103de071ec4bc1547bfef16c](https://github.com/dotnet/runtime/commit/fd8933aac237d2f3103de071ec4bc1547bfef16c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/e67e997094b65c8ed7289b00f2304288d8f75a12...fd8933aac237d2f3103de071ec4bc1547bfef16c)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in PerfLabTests.CastingPerf2.CastingPerf

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[IntObj - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/PerfLabTests.CastingPerf2.CastingPerf.IntObj.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/CastingPerf2.cs#L186-#L191>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 54.24 μs | 108.52 μs | 2.00 | 0.03 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_13_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/PerfLabTests.CastingPerf2.CastingPerf_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_13_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/PerfLabTests.CastingPerf2.CastingPerf.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'PerfLabTests.CastingPerf2.CastingPerf*'
```

<details>

### PerfLabTests.CastingPerf2.CastingPerf.IntObj

#### 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 | [e67e997094b65c8ed7289b00f2304288d8f75a12](https://github.com/dotnet/runtime/commit/e67e997094b65c8ed7289b00f2304288d8f75a12)
Compare | [fd8933aac237d2f3103de071ec4bc1547bfef16c](https://github.com/dotnet/runtime/commit/fd8933aac237d2f3103de071ec4bc1547bfef16c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/e67e997094b65c8ed7289b00f2304288d8f75a12...fd8933aac237d2f3103de071ec4bc1547bfef16c)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Numerics.Tests.Perf_VectorConvert

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Convert_float_int - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.Numerics.Tests.Perf_VectorConvert.Convert_float_int.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Numerics.Vectors/Perf_VectorConvert.cs#L32-#L33>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 474.76 ns | 547.05 ns | 1.15 | 0.14 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_13_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Numerics.Tests.Perf_VectorConvert_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_13_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.Numerics.Tests.Perf_VectorConvert.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Numerics.Tests.Perf_VectorConvert*'
```

<details>

### System.Numerics.Tests.Perf_VectorConvert.Convert_float_int

#### 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 | [e67e997094b65c8ed7289b00f2304288d8f75a12](https://github.com/dotnet/runtime/commit/e67e997094b65c8ed7289b00f2304288d8f75a12)
Compare | [fd8933aac237d2f3103de071ec4bc1547bfef16c](https://github.com/dotnet/runtime/commit/fd8933aac237d2f3103de071ec4bc1547bfef16c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/e67e997094b65c8ed7289b00f2304288d8f75a12...fd8933aac237d2f3103de071ec4bc1547bfef16c)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in Benchstone.BenchI.BenchE

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.BenchE.Test.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/Benchstones/BenchI/BenchE.cs#L70-#L86>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 226.40 ms | 290.11 ms | 1.28 | 0.03 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_13_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/Benchstone.BenchI.BenchE_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_13_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/Benchstone.BenchI.BenchE.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.BenchE*'
```

<details>

### Benchstone.BenchI.BenchE.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 | [e67e997094b65c8ed7289b00f2304288d8f75a12](https://github.com/dotnet/runtime/commit/e67e997094b65c8ed7289b00f2304288d8f75a12)
Compare | [2c94e69db875a72511729de8855871a97d45050c](https://github.com/dotnet/runtime/commit/2c94e69db875a72511729de8855871a97d45050c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/e67e997094b65c8ed7289b00f2304288d8f75a12...2c94e69db875a72511729de8855871a97d45050c)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.IO.Tests.Perf_Path

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[GetFullPathForLegacyLength - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.IO.Tests.Perf_Path.GetFullPathForLegacyLength.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime.Extensions/Perf.Path.cs#L62-#L63>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 155.36 ns | 171.30 ns | 1.10 | 0.17 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_13_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.IO.Tests.Perf_Path_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_13_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Regression/System.IO.Tests.Perf_Path.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.IO.Tests.Perf_Path*'
```

<details>

### System.IO.Tests.Perf_Path.GetFullPathForLegacyLength

#### ETL Files

#### Histogram

#### JIT Disasms



### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	ViperUbuntu
Baseline	e67e997094b65c8ed7289b00f2304288d8f75a12
Compare	fd8933aac237d2f3103de071ec4bc1547bfef16c
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
ObjectStringIsString - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	40.69 μs	54.23 μs	1.33	0.03	False
EmptyStaticFunction - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.11 ms	1.41 ms	1.27	0.01	False
NewDelegateClassEmptyStaticFn - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	641.24 μs	795.58 μs	1.24	0.31	False
ClassVirtualMethod - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	135.54 μs	162.70 μs	1.20	0.03	False

[Perf] Linux/x64: 11 Regressions on 5/10/2025 5:40:58 AM +00:00 #115519

Description

Run Information

Regressions in PerfLabTests.LowLevelPerf

Repro

PerfLabTests.LowLevelPerf.ObjectStringIsString

ETL Files

Histogram

JIT Disasms

PerfLabTests.LowLevelPerf.EmptyStaticFunction

ETL Files

Histogram

JIT Disasms

PerfLabTests.LowLevelPerf.NewDelegateClassEmptyStaticFn

ETL Files

Histogram

JIT Disasms

PerfLabTests.LowLevelPerf.ClassVirtualMethod

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Tests.Perf_Char

Repro

System.Tests.Perf_Char.Char_ToUpperInvariant(input: "Hello World!")

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.ConsoleTests.Perf_Console

Repro

System.ConsoleTests.Perf_Console.BackgroundColor

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in ArrayDeAbstraction

Repro

ArrayDeAbstraction.foreach_static_array

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in PerfLabTests.CastingPerf2.CastingPerf

Repro

PerfLabTests.CastingPerf2.CastingPerf.IntObj

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Numerics.Tests.Perf_VectorConvert

Repro

System.Numerics.Tests.Perf_VectorConvert.Convert_float_int

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in Benchstone.BenchI.BenchE

Repro

Benchstone.BenchI.BenchE.Test

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.IO.Tests.Perf_Path

Repro

System.IO.Tests.Perf_Path.GetFullPathForLegacyLength

ETL Files

Histogram

JIT Disasms

Docs

Metadata

Metadata