[Perf] Windows/x64: 22 Regressions on 7/23/2023 2:51:47 PM

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.19042
Queue | OwlWindows
Baseline | [d40ca00ca2fb5411ff159b2e84b800e8dfbd681e](https://github.com/dotnet/runtime/commit/d40ca00ca2fb5411ff159b2e84b800e8dfbd681e)
Compare | [65536eb2f01ebb85a54e792a2b974fe76af7e230](https://github.com/dotnet/runtime/commit/65536eb2f01ebb85a54e792a2b974fe76af7e230)
Diff | [Diff](https://github.com/dotnet/runtime/compare/d40ca00ca2fb5411ff159b2e84b800e8dfbd681e...65536eb2f01ebb85a54e792a2b974fe76af7e230)
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_Windows 10.0.19042/amd/PerfLabTests.CastingPerf2.CastingPerf.IntObj.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/CastingPerf2.cs#L185-#L190>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 111.41 μs | 167.24 μs | 1.50 | 0.06 | False | | |
|<ul><li>[ScalarValueTypeObj - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/PerfLabTests.CastingPerf2.CastingPerf.ScalarValueTypeObj.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/CastingPerf2.cs#L202-#L207>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 167.12 μs | 250.59 μs | 1.50 | 0.07 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_28_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Regression/PerfLabTests.CastingPerf2.CastingPerf_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_28_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Regression/PerfLabTests.CastingPerf2.CastingPerf_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_28_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'PerfLabTests.CastingPerf2.CastingPerf*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-77cfbb01-fce7-471d-88c5-58a6a774bb79622c6e4fced424cb9/1e7cd48e-f4c0-4eb7-825c-46074756ebaa.zip?sv=2021-08-06&se=2023-08-22T05%3A00%3A51Z&sr=c&sp=rl&sig=B%2Bg3WZyIsArhOBfpG1RofdFReUSu3CF6i2i6xsYCYpM%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-69eb243f-9c56-4417-a585-f44c6958a8503af1dc74ee24c1f9b/3e1717d4-4969-4e8a-8fd4-9a4004026bad.zip?sv=2021-08-06&se=2023-08-22T21%3A34%3A38Z&sr=c&sp=rl&sig=SA0bWC1OtMqXxSIAPYkWu7oyPfL%2BLXrilBw8nr6P%2F54%3D>)
### PerfLabTests.CastingPerf2.CastingPerf.IntObj

#### ETL Files

#### Histogram

#### 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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 167.2355984042553 > 116.97944968971635.
IsChangePoint: Marked as a change because one of 4/12/2023 8:39:35 PM, 4/25/2023 3:46:39 AM, 5/1/2023 3:42:23 PM, 6/13/2023 11:57:38 AM, 6/19/2023 1:02:34 PM, 6/30/2023 8:34:57 AM, 7/23/2023 4:13:29 AM, 7/27/2023 9:58:25 PM falls between 7/18/2023 9:38:16 PM and 7/27/2023 9:58:25 PM.
IsRegressionStdDev: Marked as regression because -3726.623320759 (T) = (0 -167109.8890044402) / Math.Sqrt((571.2598793094108 / (22)) + (3555.2792905077768 / (18))) is less than -2.0243941639098457 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (22) + (18) - 2, .025) and -0.500096295910723 = (111399.44112920175 - 167109.8890044402) / 111399.44112920175 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.

```
#### JIT Disasms

### PerfLabTests.CastingPerf2.CastingPerf.ScalarValueTypeObj

#### ETL Files

#### Histogram

#### 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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 250.5883361678005 > 175.48088696808512.
IsChangePoint: Marked as a change because one of 6/13/2023 11:57:38 AM, 6/19/2023 6:37:24 PM, 6/30/2023 8:34:57 AM, 7/12/2023 9:48:15 PM, 7/23/2023 4:13:29 AM, 7/27/2023 9:58:25 PM falls between 7/18/2023 9:38:16 PM and 7/27/2023 9:58:25 PM.
IsRegressionStdDev: Marked as regression because -5923.783812834366 (T) = (0 -250620.0404114637) / Math.Sqrt((1973.6592451522486 / (22)) + (1853.6876434421943 / (17))) is less than -2.026192463026769 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (22) + (17) - 2, .025) and -0.4997594603316721 = (167106.8241543474 - 250620.0404114637) / 167106.8241543474 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.

```
#### 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 | Windows 10.0.19042
Queue | OwlWindows
Baseline | [d40ca00ca2fb5411ff159b2e84b800e8dfbd681e](https://github.com/dotnet/runtime/commit/d40ca00ca2fb5411ff159b2e84b800e8dfbd681e)
Compare | [65536eb2f01ebb85a54e792a2b974fe76af7e230](https://github.com/dotnet/runtime/commit/65536eb2f01ebb85a54e792a2b974fe76af7e230)
Diff | [Diff](https://github.com/dotnet/runtime/compare/d40ca00ca2fb5411ff159b2e84b800e8dfbd681e...65536eb2f01ebb85a54e792a2b974fe76af7e230)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in Microsoft.Extensions.Primitives.StringSegmentBenchmark

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[TrimStart - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/Microsoft.Extensions.Primitives.StringSegmentBenchmark.TrimStart.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/Microsoft.Extensions.Primitives/StringSegmentBenchmark.cs#L84-#L85>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 7.55 ns | 8.88 ns | 1.18 | 0.20 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_28_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Regression/Microsoft.Extensions.Primitives.StringSegmentBenchmark_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_28_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Regression/Microsoft.Extensions.Primitives.StringSegmentBenchmark.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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'Microsoft.Extensions.Primitives.StringSegmentBenchmark*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-77cfbb01-fce7-471d-88c5-58a6a774bb79622c6e4fced424cb9/1e7cd48e-f4c0-4eb7-825c-46074756ebaa.zip?sv=2021-08-06&se=2023-08-22T05%3A00%3A51Z&sr=c&sp=rl&sig=B%2Bg3WZyIsArhOBfpG1RofdFReUSu3CF6i2i6xsYCYpM%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-69eb243f-9c56-4417-a585-f44c6958a8503af1dc74ee24c1f9b/3e1717d4-4969-4e8a-8fd4-9a4004026bad.zip?sv=2021-08-06&se=2023-08-22T21%3A34%3A38Z&sr=c&sp=rl&sig=SA0bWC1OtMqXxSIAPYkWu7oyPfL%2BLXrilBw8nr6P%2F54%3D>)
### Microsoft.Extensions.Primitives.StringSegmentBenchmark.TrimStart

#### ETL Files

#### Histogram

#### 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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 8.878705540561668 > 7.527794079352377.
IsChangePoint: Marked as a change because one of 6/5/2023 10:43:22 AM, 6/9/2023 2:21:24 AM, 6/30/2023 8:34:57 AM, 7/23/2023 4:13:29 AM, 7/27/2023 9:58:25 PM falls between 7/18/2023 9:38:16 PM and 7/27/2023 9:58:25 PM.
IsRegressionStdDev: Marked as regression because -16.743125525419128 (T) = (0 -8.883865434623916) / Math.Sqrt((0.15964468990841463 / (21)) + (0.06627201280274189 / (18))) is less than -2.026192463026769 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (21) + (18) - 2, .025) and -0.2503127434929925 = (7.105314634964933 - 8.883865434623916) / 7.105314634964933 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.

```
#### 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 | Windows 10.0.19042
Queue | OwlWindows
Baseline | [d40ca00ca2fb5411ff159b2e84b800e8dfbd681e](https://github.com/dotnet/runtime/commit/d40ca00ca2fb5411ff159b2e84b800e8dfbd681e)
Compare | [65536eb2f01ebb85a54e792a2b974fe76af7e230](https://github.com/dotnet/runtime/commit/65536eb2f01ebb85a54e792a2b974fe76af7e230)
Diff | [Diff](https://github.com/dotnet/runtime/compare/d40ca00ca2fb5411ff159b2e84b800e8dfbd681e...65536eb2f01ebb85a54e792a2b974fe76af7e230)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Memory.Span&lt;Char&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[IndexOfAnyThreeValues - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/System.Memory.Span(Char).IndexOfAnyThreeValues(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L84-#L85>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 15.19 ns | 17.48 ns | 1.15 | 0.11 | False | | |
|<ul><li>[IndexOfValue - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/System.Memory.Span(Char).IndexOfValue(Size%3a%204).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L78-#L79>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 2.71 ns | 4.69 ns | 1.73 | 0.11 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_28_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Regression/System.Memory.Span%28Char%29_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_28_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Regression/System.Memory.Span%28Char%29_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_28_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Regression/System.Memory.Span%28Char%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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Memory.Span&lt;Char&gt;*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-77cfbb01-fce7-471d-88c5-58a6a774bb79622c6e4fced424cb9/1e7cd48e-f4c0-4eb7-825c-46074756ebaa.zip?sv=2021-08-06&se=2023-08-22T05%3A00%3A51Z&sr=c&sp=rl&sig=B%2Bg3WZyIsArhOBfpG1RofdFReUSu3CF6i2i6xsYCYpM%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-69eb243f-9c56-4417-a585-f44c6958a8503af1dc74ee24c1f9b/3e1717d4-4969-4e8a-8fd4-9a4004026bad.zip?sv=2021-08-06&se=2023-08-22T21%3A34%3A38Z&sr=c&sp=rl&sig=SA0bWC1OtMqXxSIAPYkWu7oyPfL%2BLXrilBw8nr6P%2F54%3D>)
### System.Memory.Span&lt;Char&gt;.IndexOfAnyThreeValues(Size: 512)

#### ETL Files

#### Histogram

#### 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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 17.475795197343693 > 16.080844317469154.
IsChangePoint: Marked as a change because one of 5/19/2023 10:30:38 AM, 6/26/2023 10:42:28 PM, 7/23/2023 4:13:29 AM, 7/27/2023 9:58:25 PM falls between 7/18/2023 9:38:16 PM and 7/27/2023 9:58:25 PM.
IsRegressionStdDev: Marked as regression because -6.203605919043107 (T) = (0 -17.42774689480443) / Math.Sqrt((1.955548184237554 / (22)) + (0.007607491354146127 / (18))) is less than -2.0243941639098457 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (22) + (18) - 2, .025) and -0.1190426359229584 = (15.573800617909843 - 17.42774689480443) / 15.573800617909843 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.

```
#### JIT Disasms

### System.Memory.Span&lt;Char&gt;.IndexOfValue(Size: 4)

#### ETL Files

#### Histogram

#### 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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 4.685479138101039 > 2.8511158780289834.
IsChangePoint: Marked as a change because one of 4/25/2023 6:46:56 PM, 5/2/2023 3:18:41 PM, 6/9/2023 2:21:24 AM, 7/23/2023 4:13:29 AM, 7/26/2023 8:42:30 AM, 7/27/2023 9:58:25 PM falls between 7/18/2023 9:38:16 PM and 7/27/2023 9:58:25 PM.
IsRegressionStdDev: Marked as regression because -3.6468689678705757 (T) = (0 -4.70843618222053) / Math.Sqrt((0.42700477081647403 / (31)) + (0.5614912247893903 / (3))) is less than -2.03693334345674 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (31) + (3) - 2, .025) and -0.5318531556781007 = (3.0736863809483497 - 4.70843618222053) / 3.0736863809483497 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.

```
#### 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 | Windows 10.0.19042
Queue | OwlWindows
Baseline | [d40ca00ca2fb5411ff159b2e84b800e8dfbd681e](https://github.com/dotnet/runtime/commit/d40ca00ca2fb5411ff159b2e84b800e8dfbd681e)
Compare | [65536eb2f01ebb85a54e792a2b974fe76af7e230](https://github.com/dotnet/runtime/commit/65536eb2f01ebb85a54e792a2b974fe76af7e230)
Diff | [Diff](https://github.com/dotnet/runtime/compare/d40ca00ca2fb5411ff159b2e84b800e8dfbd681e...65536eb2f01ebb85a54e792a2b974fe76af7e230)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.CtorDefaultSizeNonGeneric

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[SortedList - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/System.Collections.CtorDefaultSizeNonGeneric.SortedList.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Create/CtorDefaultSizeNonGeneric.cs#L25-#L26>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 17.93 ns | 20.99 ns | 1.17 | 0.07 | False | | |
|<ul><li>[Stack - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/System.Collections.CtorDefaultSizeNonGeneric.Stack.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Create/CtorDefaultSizeNonGeneric.cs#L22-#L23>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACoRVbU/bMBD+3l/hb0m2NqQvlFKUSVCkIU0wRjtN2oSQSa6tIbEj21nbaT9+5zgJCaVD+ZI899z5fPfcJQFNHh4l5dGahCTecZqyyP3lSFiqozXQWB2llHHn3jvrJAU3Z0l8Lgu6s52MnRKPRJpdixgMrBlIiCuL0lTqBUuNKaYaNL66g2Aw7AWj3mCyGATToD8dnvqT49Hp8cnJxwCBoDoPeHzIt3+yCMbT/nA6Gv6s6DSNTQY/GI/FRvn9wD9P4/HIHwRXA//rJvFvQS6rzBjXkLxJ759e9f0FW4FsOSSM59vQ+f6Yc537/UkwKvn7VCrT8aimDgJDNVCLpHK5pBGErQRqlj/PX6gbxsuQFXcO8jceuh9VQibMrWKhOegjiRlg2Wprzr9gBEPAVktR4RqUNuB8pzSk/kwkCUSaCa78mRbyEpY0T/Sc/YEbwT8DB8kif65p9FxFyFb2WCsi/KoMsfU1xhKar4XUNzQFZRuLz2MC7l3Ov+WQw1RpyfiqS4ovwysRj/zqvNfcLnGwWL3teNRDNTjdzvvtbbgUmjBOBzqHVFRBr+gFxs9Q6Q3225IofVrh/9PxMht7RCmRpst+41seZVKd+7PONVD0hxS4Vp2/ZLNGA1lgo01JSRjarteWCzPbd4V6Qiuj2lR1prDYuRGyjRbDsYcWOe2h5a322Ti+r7FK+e00zQpiGhWK9zM0B6vrGN+3rUUEpx3iwq49xolbrkCved+Z4Eu2yiUthuCuGhtTGft+mDzDZciS4t3uxPBlQbb6MBMoG5ALkZVvtZUpSDO9c/di367EYpeB176L2ZE4jGlGPjU2LnJUnqZU4tQSKlcPKd26Bd8IoEs+eORx9ypAtxZIt+4DxsmkeMJ6ktfkQ/mhBRQOfSjxYrHbuKzFz1HCdIW0ode1Qe2R9eHV2aXVNgsTeRLYsGcsf8g4LqHmKhG8mbHEXwfaze6L1lgQsmF6TVyicHOBCuvV0iVbzXSCW/gS/zA4S7vys/jvuFx5iFmoGBfvHwAAAP//>)</li></ul> | 9.23 ns | 10.56 ns | 1.14 | 0.07 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_28_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Regression/System.Collections.CtorDefaultSizeNonGeneric_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_28_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Regression/System.Collections.CtorDefaultSizeNonGeneric_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_28_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Regression/System.Collections.CtorDefaultSizeNonGeneric.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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.CtorDefaultSizeNonGeneric*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-77cfbb01-fce7-471d-88c5-58a6a774bb79622c6e4fced424cb9/1e7cd48e-f4c0-4eb7-825c-46074756ebaa.zip?sv=2021-08-06&se=2023-08-22T05%3A00%3A51Z&sr=c&sp=rl&sig=B%2Bg3WZyIsArhOBfpG1RofdFReUSu3CF6i2i6xsYCYpM%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-69eb243f-9c56-4417-a585-f44c6958a8503af1dc74ee24c1f9b/3e1717d4-4969-4e8a-8fd4-9a4004026bad.zip?sv=2021-08-06&se=2023-08-22T21%3A34%3A38Z&sr=c&sp=rl&sig=SA0bWC1OtMqXxSIAPYkWu7oyPfL%2BLXrilBw8nr6P%2F54%3D>)
### System.Collections.CtorDefaultSizeNonGeneric.SortedList

#### ETL Files

#### Histogram

#### 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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 20.99079166861367 > 18.81903421401946.
IsChangePoint: Marked as a change because one of 5/16/2023 12:30:38 AM, 5/19/2023 10:30:38 AM, 5/22/2023 7:40:07 AM, 7/23/2023 4:13:29 AM, 7/27/2023 9:58:25 PM falls between 7/18/2023 9:38:16 PM and 7/27/2023 9:58:25 PM.
IsRegressionStdDev: Marked as regression because -35.80942234365815 (T) = (0 -20.70938565882215) / Math.Sqrt((0.1324555059490425 / (22)) + (0.03909698931698644 / (18))) is less than -2.0243941639098457 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (22) + (18) - 2, .025) and -0.1855520899951712 = (17.46813643498912 - 20.70938565882215) / 17.46813643498912 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.

```
#### JIT Disasms

### System.Collections.CtorDefaultSizeNonGeneric.Stack

#### ETL Files

#### Histogram

#### 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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 4/17/2023 6:40:18 PM, 5/22/2023 2:06:57 AM, 5/26/2023 6:22:05 AM, 7/23/2023 4:13:29 AM, 7/27/2023 9:58:25 PM falls between 7/18/2023 9:38:16 PM and 7/27/2023 9:58:25 PM.
IsRegressionStdDev: Marked as regression because -22.82742841267576 (T) = (0 -10.646050586498978) / Math.Sqrt((0.029809514873644378 / (21)) + (0.029758966317799913 / (18))) is less than -2.026192463026769 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (21) + (18) - 2, .025) and -0.13489281049938537 = (9.380666163366046 - 10.646050586498978) / 9.380666163366046 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.

```
#### 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 | Windows 10.0.19042
Queue | OwlWindows
Baseline | [d40ca00ca2fb5411ff159b2e84b800e8dfbd681e](https://github.com/dotnet/runtime/commit/d40ca00ca2fb5411ff159b2e84b800e8dfbd681e)
Compare | [65536eb2f01ebb85a54e792a2b974fe76af7e230](https://github.com/dotnet/runtime/commit/65536eb2f01ebb85a54e792a2b974fe76af7e230)
Diff | [Diff](https://github.com/dotnet/runtime/compare/d40ca00ca2fb5411ff159b2e84b800e8dfbd681e...65536eb2f01ebb85a54e792a2b974fe76af7e230)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Tests.Perf_Enum

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[GetValuesAsUnderlyingType_Generic - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/System.Tests.Perf_Enum.GetValuesAsUnderlyingType_Generic.html>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 13.11 ns | 15.42 ns | 1.18 | 0.15 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_28_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Regression/System.Tests.Perf_Enum_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_28_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Regression/System.Tests.Perf_Enum.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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Enum*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-77cfbb01-fce7-471d-88c5-58a6a774bb79622c6e4fced424cb9/1e7cd48e-f4c0-4eb7-825c-46074756ebaa.zip?sv=2021-08-06&se=2023-08-22T05%3A00%3A51Z&sr=c&sp=rl&sig=B%2Bg3WZyIsArhOBfpG1RofdFReUSu3CF6i2i6xsYCYpM%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-69eb243f-9c56-4417-a585-f44c6958a8503af1dc74ee24c1f9b/3e1717d4-4969-4e8a-8fd4-9a4004026bad.zip?sv=2021-08-06&se=2023-08-22T21%3A34%3A38Z&sr=c&sp=rl&sig=SA0bWC1OtMqXxSIAPYkWu7oyPfL%2BLXrilBw8nr6P%2F54%3D>)
### System.Tests.Perf_Enum.GetValuesAsUnderlyingType_Generic

#### ETL Files

#### Histogram

#### 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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 15.417747700122419 > 14.050898038708356.
IsChangePoint: Marked as a change because one of 4/12/2023 8:39:35 PM, 6/5/2023 10:43:22 AM, 7/23/2023 4:13:29 AM, 7/27/2023 9:58:25 PM falls between 7/18/2023 9:38:16 PM and 7/27/2023 9:58:25 PM.
IsRegressionStdDev: Marked as regression because -10.104957363631982 (T) = (0 -15.301904003449884) / Math.Sqrt((0.12201217222391122 / (20)) + (0.282074348685674 / (15))) is less than -2.034515297446192 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (15) - 2, .025) and -0.11634138763393699 = (13.707190446357956 - 15.301904003449884) / 13.707190446357956 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.

```
#### 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 | Windows 10.0.19042
Queue | OwlWindows
Baseline | [d40ca00ca2fb5411ff159b2e84b800e8dfbd681e](https://github.com/dotnet/runtime/commit/d40ca00ca2fb5411ff159b2e84b800e8dfbd681e)
Compare | [65536eb2f01ebb85a54e792a2b974fe76af7e230](https://github.com/dotnet/runtime/commit/65536eb2f01ebb85a54e792a2b974fe76af7e230)
Diff | [Diff](https://github.com/dotnet/runtime/compare/d40ca00ca2fb5411ff159b2e84b800e8dfbd681e...65536eb2f01ebb85a54e792a2b974fe76af7e230)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.IterateFor&lt;String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ImmutableSortedSet - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/System.Collections.IterateFor(String).ImmutableSortedSet(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Iterate/IterateFor.cs#L128-#L136>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 5.62 μs | 6.19 μs | 1.10 | 0.10 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_28_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Regression/System.Collections.IterateFor%28String%29_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_28_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Regression/System.Collections.IterateFor%28String%29.html>)

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

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.IterateFor&lt;String&gt;*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-77cfbb01-fce7-471d-88c5-58a6a774bb79622c6e4fced424cb9/1e7cd48e-f4c0-4eb7-825c-46074756ebaa.zip?sv=2021-08-06&se=2023-08-22T05%3A00%3A51Z&sr=c&sp=rl&sig=B%2Bg3WZyIsArhOBfpG1RofdFReUSu3CF6i2i6xsYCYpM%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-69eb243f-9c56-4417-a585-f44c6958a8503af1dc74ee24c1f9b/3e1717d4-4969-4e8a-8fd4-9a4004026bad.zip?sv=2021-08-06&se=2023-08-22T21%3A34%3A38Z&sr=c&sp=rl&sig=SA0bWC1OtMqXxSIAPYkWu7oyPfL%2BLXrilBw8nr6P%2F54%3D>)
### System.Collections.IterateFor&lt;String&gt;.ImmutableSortedSet(Size: 512)

#### ETL Files

#### Histogram

#### 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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 5/5/2023 3:18:41 PM, 5/16/2023 12:30:38 AM, 5/26/2023 6:22:05 AM, 6/26/2023 10:42:28 PM, 7/23/2023 4:13:29 AM, 7/27/2023 9:58:25 PM falls between 7/18/2023 9:38:16 PM and 7/27/2023 9:58:25 PM.
IsRegressionStdDev: Marked as regression because -21.56288709257577 (T) = (0 -6182.710107941997) / Math.Sqrt((5245.9110085752945 / (21)) + (6116.608809063844 / (18))) is less than -2.026192463026769 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (21) + (18) - 2, .025) and -0.09252157184279658 = (5659.11947854118 - 6182.710107941997) / 5659.11947854118 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.

```
#### 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 | Windows 10.0.19042
Queue | OwlWindows
Baseline | [d40ca00ca2fb5411ff159b2e84b800e8dfbd681e](https://github.com/dotnet/runtime/commit/d40ca00ca2fb5411ff159b2e84b800e8dfbd681e)
Compare | [65536eb2f01ebb85a54e792a2b974fe76af7e230](https://github.com/dotnet/runtime/commit/65536eb2f01ebb85a54e792a2b974fe76af7e230)
Diff | [Diff](https://github.com/dotnet/runtime/compare/d40ca00ca2fb5411ff159b2e84b800e8dfbd681e...65536eb2f01ebb85a54e792a2b974fe76af7e230)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Text.Tests.Perf_StringBuilder

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ctor_capacity - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/System.Text.Tests.Perf_StringBuilder.ctor_capacity(length%3a%20100).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text/Perf.StringBuilder.cs#L34-#L37>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 16.19 ns | 18.08 ns | 1.12 | 0.11 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_28_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Regression/System.Text.Tests.Perf_StringBuilder_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_28_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Regression/System.Text.Tests.Perf_StringBuilder.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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.Tests.Perf_StringBuilder*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-77cfbb01-fce7-471d-88c5-58a6a774bb79622c6e4fced424cb9/1e7cd48e-f4c0-4eb7-825c-46074756ebaa.zip?sv=2021-08-06&se=2023-08-22T05%3A00%3A51Z&sr=c&sp=rl&sig=B%2Bg3WZyIsArhOBfpG1RofdFReUSu3CF6i2i6xsYCYpM%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-69eb243f-9c56-4417-a585-f44c6958a8503af1dc74ee24c1f9b/3e1717d4-4969-4e8a-8fd4-9a4004026bad.zip?sv=2021-08-06&se=2023-08-22T21%3A34%3A38Z&sr=c&sp=rl&sig=SA0bWC1OtMqXxSIAPYkWu7oyPfL%2BLXrilBw8nr6P%2F54%3D>)
### System.Text.Tests.Perf_StringBuilder.ctor_capacity(length: 100)

#### ETL Files

#### Histogram

#### 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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 18.077934897039135 > 16.962552614773923.
IsChangePoint: Marked as a change because one of 4/22/2023 6:52:03 AM, 5/19/2023 10:30:38 AM, 6/23/2023 6:04:39 AM, 7/23/2023 4:13:29 AM, 7/27/2023 9:58:25 PM falls between 7/18/2023 9:38:16 PM and 7/27/2023 9:58:25 PM.
IsRegressionStdDev: Marked as regression because -11.965758854537114 (T) = (0 -17.629069563087775) / Math.Sqrt((0.11553420623909438 / (22)) + (0.1616058025552287 / (17))) is less than -2.026192463026769 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (22) + (17) - 2, .025) and -0.08986578389864751 = (16.17545006324118 - 17.629069563087775) / 16.17545006324118 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.

```
#### 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 | Windows 10.0.19042
Queue | OwlWindows
Baseline | [d40ca00ca2fb5411ff159b2e84b800e8dfbd681e](https://github.com/dotnet/runtime/commit/d40ca00ca2fb5411ff159b2e84b800e8dfbd681e)
Compare | [65536eb2f01ebb85a54e792a2b974fe76af7e230](https://github.com/dotnet/runtime/commit/65536eb2f01ebb85a54e792a2b974fe76af7e230)
Diff | [Diff](https://github.com/dotnet/runtime/compare/d40ca00ca2fb5411ff159b2e84b800e8dfbd681e...65536eb2f01ebb85a54e792a2b974fe76af7e230)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.Tests.Perf_BitArray

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[BitArrayNot - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/System.Collections.Tests.Perf_BitArray.BitArrayNot(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Perf.BitArray.cs#L63-#L64>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 7.34 ns | 10.46 ns | 1.42 | 0.19 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_28_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Regression/System.Collections.Tests.Perf_BitArray_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_28_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Regression/System.Collections.Tests.Perf_BitArray.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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.Tests.Perf_BitArray*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-77cfbb01-fce7-471d-88c5-58a6a774bb79622c6e4fced424cb9/1e7cd48e-f4c0-4eb7-825c-46074756ebaa.zip?sv=2021-08-06&se=2023-08-22T05%3A00%3A51Z&sr=c&sp=rl&sig=B%2Bg3WZyIsArhOBfpG1RofdFReUSu3CF6i2i6xsYCYpM%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-69eb243f-9c56-4417-a585-f44c6958a8503af1dc74ee24c1f9b/3e1717d4-4969-4e8a-8fd4-9a4004026bad.zip?sv=2021-08-06&se=2023-08-22T21%3A34%3A38Z&sr=c&sp=rl&sig=SA0bWC1OtMqXxSIAPYkWu7oyPfL%2BLXrilBw8nr6P%2F54%3D>)
### System.Collections.Tests.Perf_BitArray.BitArrayNot(Size: 512)

#### ETL Files

#### Histogram

#### 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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 10.45676124745665 > 7.724404179005982.
IsChangePoint: Marked as a change because one of 4/12/2023 8:39:35 PM, 4/28/2023 10:42:00 AM, 5/3/2023 7:05:50 AM, 5/23/2023 1:41:12 PM, 6/13/2023 11:57:38 AM, 6/16/2023 8:27:26 PM, 7/17/2023 6:26:12 PM, 7/23/2023 4:13:29 AM, 7/27/2023 9:58:25 PM falls between 7/18/2023 9:38:16 PM and 7/27/2023 9:58:25 PM.
IsRegressionStdDev: Marked as regression because -43.20854589034163 (T) = (0 -10.599189758177454) / Math.Sqrt((0.06842522827563671 / (20)) + (0.029056745042022693 / (14))) is less than -2.03693334345674 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (14) - 2, .025) and -0.43315434099537375 = (7.395707116105835 - 10.599189758177454) / 7.395707116105835 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.

```
#### 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 | Windows 10.0.19042
Queue | OwlWindows
Baseline | [d40ca00ca2fb5411ff159b2e84b800e8dfbd681e](https://github.com/dotnet/runtime/commit/d40ca00ca2fb5411ff159b2e84b800e8dfbd681e)
Compare | [65536eb2f01ebb85a54e792a2b974fe76af7e230](https://github.com/dotnet/runtime/commit/65536eb2f01ebb85a54e792a2b974fe76af7e230)
Diff | [Diff](https://github.com/dotnet/runtime/compare/d40ca00ca2fb5411ff159b2e84b800e8dfbd681e...65536eb2f01ebb85a54e792a2b974fe76af7e230)
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>[GenericClassGenericStaticMethod - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/PerfLabTests.LowLevelPerf.GenericClassGenericStaticMethod.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/LowLevelPerf.cs#L343-#L352>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 176.61 μs | 193.70 μs | 1.10 | 0.10 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_28_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Regression/PerfLabTests.LowLevelPerf_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_28_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'PerfLabTests.LowLevelPerf*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-77cfbb01-fce7-471d-88c5-58a6a774bb79622c6e4fced424cb9/1e7cd48e-f4c0-4eb7-825c-46074756ebaa.zip?sv=2021-08-06&se=2023-08-22T05%3A00%3A51Z&sr=c&sp=rl&sig=B%2Bg3WZyIsArhOBfpG1RofdFReUSu3CF6i2i6xsYCYpM%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-69eb243f-9c56-4417-a585-f44c6958a8503af1dc74ee24c1f9b/3e1717d4-4969-4e8a-8fd4-9a4004026bad.zip?sv=2021-08-06&se=2023-08-22T21%3A34%3A38Z&sr=c&sp=rl&sig=SA0bWC1OtMqXxSIAPYkWu7oyPfL%2BLXrilBw8nr6P%2F54%3D>)
### PerfLabTests.LowLevelPerf.GenericClassGenericStaticMethod

#### ETL Files

#### Histogram

#### 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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 193.6962406367041 > 188.24312254213484.
IsChangePoint: Marked as a change because one of 4/25/2023 3:46:39 AM, 5/1/2023 3:42:23 PM, 5/9/2023 1:22:51 PM, 5/16/2023 12:30:38 AM, 7/23/2023 4:13:29 AM, 7/27/2023 9:58:25 PM falls between 7/18/2023 9:38:16 PM and 7/27/2023 9:58:25 PM.
IsRegressionStdDev: Marked as regression because -31.27991059974162 (T) = (0 -193166.83113159175) / Math.Sqrt((3095019.201540684 / (20)) + (446175.9634901736 / (14))) is less than -2.03693334345674 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (20) + (14) - 2, .025) and -0.07521568464387171 = (179654.03024749554 - 193166.83113159175) / 179654.03024749554 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.

```
#### 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	Windows 10.0.19042
Queue	OwlWindows
Baseline	d40ca00ca2fb5411ff159b2e84b800e8dfbd681e
Compare	65536eb2f01ebb85a54e792a2b974fe76af7e230
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
IntObj - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	111.41 μs	167.24 μs	1.50	0.06	False
ScalarValueTypeObj - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	167.12 μs	250.59 μs	1.50	0.07	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
IndexOfAnyThreeValues - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	15.19 ns	17.48 ns	1.15	0.11	False
IndexOfValue - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	2.71 ns	4.69 ns	1.73	0.11	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
SortedList - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	17.93 ns	20.99 ns	1.17	0.07	False
Stack - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	9.23 ns	10.56 ns	1.14	0.07	False

[Perf] Windows/x64: 22 Regressions on 7/23/2023 2:51:47 PM #20151

Description

Run Information

Regressions in PerfLabTests.CastingPerf2.CastingPerf

Repro

Payloads

PerfLabTests.CastingPerf2.CastingPerf.IntObj

ETL Files

Histogram

Description of detection logic

JIT Disasms

PerfLabTests.CastingPerf2.CastingPerf.ScalarValueTypeObj

ETL Files

Histogram

Description of detection logic

JIT Disasms

Docs

Run Information

Regressions in Microsoft.Extensions.Primitives.StringSegmentBenchmark

Repro

Payloads

Microsoft.Extensions.Primitives.StringSegmentBenchmark.TrimStart

ETL Files

Histogram

Description of detection logic

JIT Disasms

Docs

Run Information

Regressions in System.Memory.Span<Char>

Repro

Payloads

System.Memory.Span<Char>.IndexOfAnyThreeValues(Size: 512)

ETL Files

Histogram

Description of detection logic

JIT Disasms

System.Memory.Span<Char>.IndexOfValue(Size: 4)

ETL Files

Histogram

Description of detection logic

JIT Disasms

Docs

Run Information

Regressions in System.Collections.CtorDefaultSizeNonGeneric

Repro

Payloads

System.Collections.CtorDefaultSizeNonGeneric.SortedList

ETL Files

Histogram

Description of detection logic

JIT Disasms

System.Collections.CtorDefaultSizeNonGeneric.Stack

ETL Files

Histogram

Description of detection logic

JIT Disasms

Docs

Run Information

Regressions in System.Tests.Perf_Enum

Repro

Payloads

System.Tests.Perf_Enum.GetValuesAsUnderlyingType_Generic

ETL Files

Histogram

Description of detection logic

JIT Disasms

Docs

Run Information

Regressions in System.Collections.IterateFor<String>

Repro

Payloads

System.Collections.IterateFor<String>.ImmutableSortedSet(Size: 512)

ETL Files

Histogram

Description of detection logic

JIT Disasms

Docs

Run Information

Regressions in System.Text.Tests.Perf_StringBuilder

Repro