[Perf] Windows/x86: 3 Regressions on 11/4/2022 4:27:34 PM

### Run Information

Architecture | x86
-- | --
OS | Windows 10.0.18362
Baseline | [803688595257517f4b47e873d11152b0560c204a](https://github.com/dotnet/runtime/commit/803688595257517f4b47e873d11152b0560c204a)
Compare | [42bebc934bc86d4b612190810cfbbcb0cb9f7d3d](https://github.com/dotnet/runtime/commit/42bebc934bc86d4b612190810cfbbcb0cb9f7d3d)
Diff | [Diff](https://github.com/dotnet/runtime/compare/803688595257517f4b47e873d11152b0560c204a...42bebc934bc86d4b612190810cfbbcb0cb9f7d3d)


### Regressions in PerfLabTests.LowLevelPerf

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ForeachOverList100Elements - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x86_Windows 10.0.18362/PerfLabTests.LowLevelPerf.ForeachOverList100Elements.html>) | 8.14 ms | 9.50 ms | 1.17 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_08_2022/refs/heads/main_x86_Windows%2010.0.18362_Regression/PerfLabTests.LowLevelPerf_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_08_2022/refs/heads/main_x86_Windows%2010.0.18362_Regression/PerfLabTests.LowLevelPerf.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'PerfLabTests.LowLevelPerf*'
```

### Related Issues

#### Regressions

#### Improvements

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-02b6ce04-b0cd-44fd-9086-7ce94ea3afac3fac1e189a54ce4b2/aefb0305-7ac2-4d01-b4fd-8efb43bf0da2.zip?sv=2021-08-06&se=2022-12-04T05%3A13%3A45Z&sr=c&sp=rl&sig=CmFc13493ApeguPBgNLYIEZ8xMTxEanVog6J3Ch70Lc%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-5839f7d0-4dc7-4007-9d0d-06c7e509173bea7709b11404da281/20f59211-afa5-4d01-a05a-e7433ee86467.zip?sv=2021-08-06&se=2022-12-05T00%3A04%3A22Z&sr=c&sp=rl&sig=%2BpAI4K6%2FmpbSohlduj77fjj%2ByRyfht9E0vRx4DCMrfU%3D>)
### Histogram

### Edge Detector Info

[Collection Data](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/reports/11_08_2022/refs/heads/main_x86_Windows 10.0.18362/PerfLabTests.LowLevelPerf.ForeachOverList100Elements.txt?sv=2018-03-28&sr=c&sig=JoytaT70%2ByX0ce090BDZwAg8TDntVqLeANIlSNxVryw%3D&se=2022-11-24T00%3A17%3A57Z&sp=racwdl>)
#### PerfLabTests.LowLevelPerf.ForeachOverList100Elements

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 9.50192421875 > 8.5466957421875.
IsChangePoint: Marked as a change because one of 9/29/2022 5:24:34 PM, 10/6/2022 11:18:47 AM, 11/4/2022 9:11:54 AM, 11/8/2022 2:29:58 AM falls between 10/29/2022 4:38:27 PM and 11/8/2022 2:29:58 AM.
IsRegressionStdDev: Marked as regression because -64.91620885017896 (T) = (0 -9528623.782311438) / Math.Sqrt((3936731665.847106 / (39)) + (4344956191.072603 / (11))) is less than -2.010634757623041 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (39) + (11) - 2, .025) and -0.17885301077691512 = (8082961.739251667 - 9528623.782311438) / 8082961.739251667 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### 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

Architecture | x86
-- | --
OS | Windows 10.0.18362
Baseline | [803688595257517f4b47e873d11152b0560c204a](https://github.com/dotnet/runtime/commit/803688595257517f4b47e873d11152b0560c204a)
Compare | [42bebc934bc86d4b612190810cfbbcb0cb9f7d3d](https://github.com/dotnet/runtime/commit/42bebc934bc86d4b612190810cfbbcb0cb9f7d3d)
Diff | [Diff](https://github.com/dotnet/runtime/compare/803688595257517f4b47e873d11152b0560c204a...42bebc934bc86d4b612190810cfbbcb0cb9f7d3d)


### Regressions in System.Collections.IterateForEach&lt;Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[List - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x86_Windows 10.0.18362/System.Collections.IterateForEach(Int32).List(Size%3a%20512).html>) | 331.88 ns | 483.77 ns | 1.46 | 0.00 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_08_2022/refs/heads/main_x86_Windows%2010.0.18362_Regression/System.Collections.IterateForEach(Int32)_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_08_2022/refs/heads/main_x86_Windows%2010.0.18362_Regression/System.Collections.IterateForEach(Int32).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.IterateForEach&lt;Int32&gt;*'
```

### Related Issues

#### Regressions

#### Improvements

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-02b6ce04-b0cd-44fd-9086-7ce94ea3afac3fac1e189a54ce4b2/aefb0305-7ac2-4d01-b4fd-8efb43bf0da2.zip?sv=2021-08-06&se=2022-12-04T05%3A13%3A45Z&sr=c&sp=rl&sig=CmFc13493ApeguPBgNLYIEZ8xMTxEanVog6J3Ch70Lc%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-5839f7d0-4dc7-4007-9d0d-06c7e509173bea7709b11404da281/20f59211-afa5-4d01-a05a-e7433ee86467.zip?sv=2021-08-06&se=2022-12-05T00%3A04%3A22Z&sr=c&sp=rl&sig=%2BpAI4K6%2FmpbSohlduj77fjj%2ByRyfht9E0vRx4DCMrfU%3D>)
### Histogram

### Edge Detector Info

[Collection Data](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/reports/11_08_2022/refs/heads/main_x86_Windows 10.0.18362/System.Collections.IterateForEach-Int32-.List(Size- 512).txt?sv=2018-03-28&sr=c&sig=JoytaT70%2ByX0ce090BDZwAg8TDntVqLeANIlSNxVryw%3D&se=2022-11-24T00%3A17%3A57Z&sp=racwdl>)
#### System.Collections.IterateForEach&lt;Int32&gt;.List(Size: 512)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 483.77255371909416 > 348.62833170060605.
IsChangePoint: Marked as a change because one of 11/4/2022 9:11:54 AM, 11/8/2022 2:29:58 AM falls between 10/29/2022 4:38:27 PM and 11/8/2022 2:29:58 AM.
IsRegressionStdDev: Marked as regression because -816.2556151751373 (T) = (0 -483.2693640483141) / Math.Sqrt((0.4536698257526217 / (38)) + (0.24403528860978563 / (11))) is less than -2.011740513728388 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (38) + (11) - 2, .025) and -0.4535041841765762 = (332.4857054485129 - 483.2693640483141) / 332.4857054485129 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### 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

Architecture | x86
-- | --
OS | Windows 10.0.18362
Baseline | [803688595257517f4b47e873d11152b0560c204a](https://github.com/dotnet/runtime/commit/803688595257517f4b47e873d11152b0560c204a)
Compare | [42bebc934bc86d4b612190810cfbbcb0cb9f7d3d](https://github.com/dotnet/runtime/commit/42bebc934bc86d4b612190810cfbbcb0cb9f7d3d)
Diff | [Diff](https://github.com/dotnet/runtime/compare/803688595257517f4b47e873d11152b0560c204a...42bebc934bc86d4b612190810cfbbcb0cb9f7d3d)


### Regressions in LinqBenchmarks

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Count00ForX - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x86_Windows 10.0.18362/LinqBenchmarks.Count00ForX.html>) | 61.52 ms | 109.48 ms | 1.78 | 0.05 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_08_2022/refs/heads/main_x86_Windows%2010.0.18362_Regression/LinqBenchmarks_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_08_2022/refs/heads/main_x86_Windows%2010.0.18362_Regression/LinqBenchmarks.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'LinqBenchmarks*'
```

### Related Issues

#### Regressions

#### Improvements

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-02b6ce04-b0cd-44fd-9086-7ce94ea3afac3fac1e189a54ce4b2/aefb0305-7ac2-4d01-b4fd-8efb43bf0da2.zip?sv=2021-08-06&se=2022-12-04T05%3A13%3A45Z&sr=c&sp=rl&sig=CmFc13493ApeguPBgNLYIEZ8xMTxEanVog6J3Ch70Lc%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-5839f7d0-4dc7-4007-9d0d-06c7e509173bea7709b11404da281/20f59211-afa5-4d01-a05a-e7433ee86467.zip?sv=2021-08-06&se=2022-12-05T00%3A04%3A22Z&sr=c&sp=rl&sig=%2BpAI4K6%2FmpbSohlduj77fjj%2ByRyfht9E0vRx4DCMrfU%3D>)
### Histogram

### Edge Detector Info

[Collection Data](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/reports/11_08_2022/refs/heads/main_x86_Windows 10.0.18362/LinqBenchmarks.Count00ForX.txt?sv=2018-03-28&sr=c&sig=JoytaT70%2ByX0ce090BDZwAg8TDntVqLeANIlSNxVryw%3D&se=2022-11-24T00%3A17%3A57Z&sp=racwdl>)
#### LinqBenchmarks.Count00ForX

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 109.4760675 > 64.56174677884616.
IsChangePoint: Marked as a change because one of 9/9/2022 3:12:19 AM, 10/19/2022 7:27:15 PM, 11/4/2022 9:11:54 AM, 11/8/2022 2:29:58 AM falls between 10/29/2022 4:38:27 PM and 11/8/2022 2:29:58 AM.
IsRegressionStdDev: Marked as regression because -27.211520172324462 (T) = (0 -99214695.257659) / Math.Sqrt((16983861813.033918 / (38)) + (21090849455974.3 / (11))) is less than -2.011740513728388 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (38) + (11) - 2, .025) and -0.6124357307442342 = (61530945.61596298 - 99214695.257659) / 61530945.61596298 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### 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>




Architecture	x86
OS	Windows 10.0.18362
Baseline	803688595257517f4b47e873d11152b0560c204a
Compare	42bebc934bc86d4b612190810cfbbcb0cb9f7d3d
Diff	Diff

[Perf] Windows/x86: 3 Regressions on 11/4/2022 4:27:34 PM #9540

Description

Run Information

Regressions in PerfLabTests.LowLevelPerf

Repro

Related Issues

Regressions

Improvements

Payloads

Histogram

Edge Detector Info

PerfLabTests.LowLevelPerf.ForeachOverList100Elements

Description of detection logic

Docs

Regressions in System.Collections.IterateForEach<Int32>

Repro

Related Issues

Regressions

Improvements

Payloads

Histogram

Edge Detector Info

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

Description of detection logic

Docs

Run Information

Regressions in LinqBenchmarks

Repro

Related Issues

Regressions

Improvements

Payloads

Histogram

Edge Detector Info

LinqBenchmarks.Count00ForX

Description of detection logic

Docs

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

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Development

Issue actions