[Perf] Linux/x64: 8 Regressions on 4/8/2024 6:26:42 PM

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [bc2bd2bd77ecd7a7979a3ef815e3ff36881a1b94](https://github.com/dotnet/runtime/commit/bc2bd2bd77ecd7a7979a3ef815e3ff36881a1b94)
Compare | [f6f91998634961ec4df518ebe99d245ba34e7874](https://github.com/dotnet/runtime/commit/f6f91998634961ec4df518ebe99d245ba34e7874)
Diff | [Diff](https://github.com/dotnet/runtime/compare/bc2bd2bd77ecd7a7979a3ef815e3ff36881a1b94...f6f91998634961ec4df518ebe99d245ba34e7874)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro


### Regressions in System.Numerics.Tensors.Tests.Perf_NumberTensorPrimitives&lt;Single&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Max_Vector - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_AOT=true_CompilationMode=wasm_RunKind=micro/System.Numerics.Tensors.Tests.Perf_NumberTensorPrimitives(Single).Max_Vector(BufferLength%3a%203079).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Numerics.Tensors/Perf_NumberTensorPrimitives.cs#L76-#L77>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.76 μs | 1.87 μs | 1.06 | 0.01 | True | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_16_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Numerics.Tensors.Tests.Perf_NumberTensorPrimitives%28Single%29_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_16_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Numerics.Tensors.Tests.Perf_NumberTensorPrimitives%28Single%29.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Numerics.Tensors.Tests.Perf_NumberTensorPrimitives&lt;Single&gt;*'
```

<details>

### System.Numerics.Tensors.Tests.Perf_NumberTensorPrimitives&lt;Single&gt;.Max_Vector(BufferLength: 3079)

#### ETL Files

#### Histogram

#### JIT Disasms



### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


---


### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [bc2bd2bd77ecd7a7979a3ef815e3ff36881a1b94](https://github.com/dotnet/runtime/commit/bc2bd2bd77ecd7a7979a3ef815e3ff36881a1b94)
Compare | [f6f91998634961ec4df518ebe99d245ba34e7874](https://github.com/dotnet/runtime/commit/f6f91998634961ec4df518ebe99d245ba34e7874)
Diff | [Diff](https://github.com/dotnet/runtime/compare/bc2bd2bd77ecd7a7979a3ef815e3ff36881a1b94...f6f91998634961ec4df518ebe99d245ba34e7874)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro


### Regressions in System.Text.Tests.Perf_Encoding

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[GetChars - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_AOT=true_CompilationMode=wasm_RunKind=micro/System.Text.Tests.Perf_Encoding.GetChars(size%3a%20512%2c%20encName%3a%20%22ascii%22).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Encoding/Perf.Encoding.cs#L41-#L43>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 316.02 ns | 413.33 ns | 1.31 | 0.13 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_16_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Text.Tests.Perf_Encoding_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_16_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Text.Tests.Perf_Encoding.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.Tests.Perf_Encoding*'
```

<details>

### System.Text.Tests.Perf_Encoding.GetChars(size: 512, encName: "ascii")

#### ETL Files

#### Histogram

#### JIT Disasms



### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


---


### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [bc2bd2bd77ecd7a7979a3ef815e3ff36881a1b94](https://github.com/dotnet/runtime/commit/bc2bd2bd77ecd7a7979a3ef815e3ff36881a1b94)
Compare | [f6f91998634961ec4df518ebe99d245ba34e7874](https://github.com/dotnet/runtime/commit/f6f91998634961ec4df518ebe99d245ba34e7874)
Diff | [Diff](https://github.com/dotnet/runtime/compare/bc2bd2bd77ecd7a7979a3ef815e3ff36881a1b94...f6f91998634961ec4df518ebe99d245ba34e7874)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro


### Regressions in System.Runtime.Intrinsics.Tests.Perf_Vector128Of&lt;UInt16&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[LessThanOrEqualAnyBenchmark - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_AOT=true_CompilationMode=wasm_RunKind=micro/System.Runtime.Intrinsics.Tests.Perf_Vector128Of(UInt16).LessThanOrEqualAnyBenchmark.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime.Intrinsics/Perf_Vector128OfT.cs#L142-#L143>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 2.43 ns | 5.05 ns | 2.07 | 0.90 | False | | |
|<ul><li>[GreaterThanOrEqualAllBenchmark - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_AOT=true_CompilationMode=wasm_RunKind=micro/System.Runtime.Intrinsics.Tests.Perf_Vector128Of(UInt16).GreaterThanOrEqualAllBenchmark.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime.Intrinsics/Perf_Vector128OfT.cs#L121-#L122>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 3.10 ns | 4.68 ns | 1.51 | 0.92 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_16_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Runtime.Intrinsics.Tests.Perf_Vector128Of%28UInt16%29_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_16_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Runtime.Intrinsics.Tests.Perf_Vector128Of%28UInt16%29_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_16_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Runtime.Intrinsics.Tests.Perf_Vector128Of%28UInt16%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.Runtime.Intrinsics.Tests.Perf_Vector128Of&lt;UInt16&gt;*'
```

<details>

### System.Runtime.Intrinsics.Tests.Perf_Vector128Of&lt;UInt16&gt;.LessThanOrEqualAnyBenchmark

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Runtime.Intrinsics.Tests.Perf_Vector128Of&lt;UInt16&gt;.GreaterThanOrEqualAllBenchmark

#### ETL Files

#### Histogram

#### JIT Disasms



### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


---


### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [bc2bd2bd77ecd7a7979a3ef815e3ff36881a1b94](https://github.com/dotnet/runtime/commit/bc2bd2bd77ecd7a7979a3ef815e3ff36881a1b94)
Compare | [f6f91998634961ec4df518ebe99d245ba34e7874](https://github.com/dotnet/runtime/commit/f6f91998634961ec4df518ebe99d245ba34e7874)
Diff | [Diff](https://github.com/dotnet/runtime/compare/bc2bd2bd77ecd7a7979a3ef815e3ff36881a1b94...f6f91998634961ec4df518ebe99d245ba34e7874)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro


### Regressions in System.Collections.IterateForEach&lt;Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ImmutableList - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_AOT=true_CompilationMode=wasm_RunKind=micro/System.Collections.IterateForEach(Int32).ImmutableList(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Iterate/IterateForEach.cs#L312-#L320>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 140.74 μs | 162.49 μs | 1.15 | 0.33 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_16_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Collections.IterateForEach%28Int32%29_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_16_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Collections.IterateForEach%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.IterateForEach&lt;Int32&gt;*'
```

<details>

### System.Collections.IterateForEach&lt;Int32&gt;.ImmutableList(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms



### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


---


### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [bc2bd2bd77ecd7a7979a3ef815e3ff36881a1b94](https://github.com/dotnet/runtime/commit/bc2bd2bd77ecd7a7979a3ef815e3ff36881a1b94)
Compare | [f6f91998634961ec4df518ebe99d245ba34e7874](https://github.com/dotnet/runtime/commit/f6f91998634961ec4df518ebe99d245ba34e7874)
Diff | [Diff](https://github.com/dotnet/runtime/compare/bc2bd2bd77ecd7a7979a3ef815e3ff36881a1b94...f6f91998634961ec4df518ebe99d245ba34e7874)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro


### Regressions in System.IO.Tests.StreamReaderReadToEndTests

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ReadToEnd - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_AOT=true_CompilationMode=wasm_RunKind=micro/System.IO.Tests.StreamReaderReadToEndTests.ReadToEnd(LineLengthRange%3a%20%5b%20%2033%2c%20%20128%5d).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.IO/StreamReaderReadToEndTests.cs#L30-#L37>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 70.96 ms | 79.89 ms | 1.13 | 0.10 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_16_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.IO.Tests.StreamReaderReadToEndTests_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_16_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.IO.Tests.StreamReaderReadToEndTests.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.StreamReaderReadToEndTests*'
```

<details>

### System.IO.Tests.StreamReaderReadToEndTests.ReadToEnd(LineLengthRange: [  33,  128])

#### ETL Files

#### Histogram

#### JIT Disasms



### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


---


### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [bc2bd2bd77ecd7a7979a3ef815e3ff36881a1b94](https://github.com/dotnet/runtime/commit/bc2bd2bd77ecd7a7979a3ef815e3ff36881a1b94)
Compare | [f6f91998634961ec4df518ebe99d245ba34e7874](https://github.com/dotnet/runtime/commit/f6f91998634961ec4df518ebe99d245ba34e7874)
Diff | [Diff](https://github.com/dotnet/runtime/compare/bc2bd2bd77ecd7a7979a3ef815e3ff36881a1b94...f6f91998634961ec4df518ebe99d245ba34e7874)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro


### Regressions in System.IO.Tests.StreamReaderReadLineTests

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ReadLine - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_AOT=true_CompilationMode=wasm_RunKind=micro/System.IO.Tests.StreamReaderReadLineTests.ReadLine(LineLengthRange%3a%20%5b%20129%2c%201024%5d).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.IO/StreamReaderReadLineTests.cs#L24-#L32>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACo1UUW/TMBB+R+I/+C0JZG1SulEqBdGVAYWWlTRv04Tc5JYYxXZ0dtZmQvx27LSUtZOmvFi5z9/33fl0lwVQVSNwEFq9+E02BSCQy5qVWQyVJFFEnExqAbqPtdCMg3PMukQq0qLlIdypfgE0U31OmTghTjAtmIZUm2yECeI624uh4xOHIjcf3oGdgNLfKQfr+cFZNUoD782uexZXvZVGoDw2WQDtOWcCdjf/ItcecxC5LmIqchiTGxIO3vkkDAbDW+9/WXEtplLcsbxGqpkU6saZXCfOLYn+EEdjDc7L57hTyStWttFCZrDXbajiz+sM9I2JbM/nLEX5SMAU8Eo37hPhTKp5ec/bXnod+F/VlchNJ7pwrXEX3kIKOZG6K3UmNGCFYM4ukmUuk6bqVPCyaBRLablEyaVFugq/NGtk2edSrmnJHlqsiywexF0zXG0rQLMnoh3i47GeSrNDgIms9l/HK5IY2UpTXpH3JKMa7Lq5AzO1Z8HgLLxIgtE4HIzPR73zMHw7HA1fB8E4CGwKVXNOkT0AoZj/5HTrtoa2Ap+88si6OcngH9bMtzP6o4YajE+F8pdZ0SfkGFRd6ghN1Zn76CU7fHIPSHPj9MbzSWtljaNPyEBkZXNAbLPawJaM5g6Q2DemBUVNNkwXxFWmeaCig8Yn21SWNRfRaU3NDlfRrghD1EyXEDkfTevMj6XZh1ZCXKE8i6mqZDqiW1DeX5bQDe76BAAA>)</li></ul> | 16.39 μs | 19.68 μs | 1.20 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_16_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.IO.Tests.StreamReaderReadLineTests_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_16_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.IO.Tests.StreamReaderReadLineTests.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.StreamReaderReadLineTests*'
```

<details>

### System.IO.Tests.StreamReaderReadLineTests.ReadLine(LineLengthRange: [ 129, 1024])

#### ETL Files

#### Histogram

#### JIT Disasms



### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


---


### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [bc2bd2bd77ecd7a7979a3ef815e3ff36881a1b94](https://github.com/dotnet/runtime/commit/bc2bd2bd77ecd7a7979a3ef815e3ff36881a1b94)
Compare | [f6f91998634961ec4df518ebe99d245ba34e7874](https://github.com/dotnet/runtime/commit/f6f91998634961ec4df518ebe99d245ba34e7874)
Diff | [Diff](https://github.com/dotnet/runtime/compare/bc2bd2bd77ecd7a7979a3ef815e3ff36881a1b94...f6f91998634961ec4df518ebe99d245ba34e7874)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro


### Regressions in System.Text.Json.Serialization.Tests.WriteJson&lt;BinaryData&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[SerializeToString - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_AOT=true_CompilationMode=wasm_RunKind=micro/System.Text.Json.Serialization.Tests.WriteJson(BinaryData).SerializeToString(Mode%3a%20SourceGen).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Serializer/WriteJson.cs#L75-#L76>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.86 μs | 2.15 μs | 1.16 | 0.02 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_16_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Text.Json.Serialization.Tests.WriteJson%28BinaryData%29_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_16_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Text.Json.Serialization.Tests.WriteJson%28BinaryData%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.Text.Json.Serialization.Tests.WriteJson&lt;BinaryData&gt;*'
```

<details>

### System.Text.Json.Serialization.Tests.WriteJson&lt;BinaryData&gt;.SerializeToString(Mode: SourceGen)

#### ETL Files

#### Histogram

#### JIT Disasms



### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	TigerUbuntu
Baseline	bc2bd2bd77ecd7a7979a3ef815e3ff36881a1b94
Compare	f6f91998634961ec4df518ebe99d245ba34e7874
Diff	Diff
Configs	AOT:true, CompilationMode:wasm, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
LessThanOrEqualAnyBenchmark - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	2.43 ns	5.05 ns	2.07	0.90	False
GreaterThanOrEqualAllBenchmark - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	3.10 ns	4.68 ns	1.51	0.92	False

[Perf] Linux/x64: 8 Regressions on 4/8/2024 6:26:42 PM #32790

Description

Run Information

Regressions in System.Numerics.Tensors.Tests.Perf_NumberTensorPrimitives<Single>

Repro

System.Numerics.Tensors.Tests.Perf_NumberTensorPrimitives<Single>.Max_Vector(BufferLength: 3079)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Text.Tests.Perf_Encoding

Repro

System.Text.Tests.Perf_Encoding.GetChars(size: 512, encName: "ascii")

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Runtime.Intrinsics.Tests.Perf_Vector128Of<UInt16>

Repro

System.Runtime.Intrinsics.Tests.Perf_Vector128Of<UInt16>.LessThanOrEqualAnyBenchmark

ETL Files

Histogram

JIT Disasms

System.Runtime.Intrinsics.Tests.Perf_Vector128Of<UInt16>.GreaterThanOrEqualAllBenchmark

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Collections.IterateForEach<Int32>

Repro

System.Collections.IterateForEach<Int32>.ImmutableList(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.IO.Tests.StreamReaderReadToEndTests

Repro

System.IO.Tests.StreamReaderReadToEndTests.ReadToEnd(LineLengthRange: [ 33, 128])

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.IO.Tests.StreamReaderReadLineTests

Repro

System.IO.Tests.StreamReaderReadLineTests.ReadLine(LineLengthRange: [ 129, 1024])

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Text.Json.Serialization.Tests.WriteJson<BinaryData>

Repro

System.Text.Json.Serialization.Tests.WriteJson<BinaryData>.SerializeToString(Mode: SourceGen)

ETL Files

Histogram

JIT Disasms

Docs

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