[Perf] Linux/arm64: 29 Regressions on 12/2/2022 1:56:04 AM

### Run Information

Architecture | arm64
-- | --
OS | ubuntu 20.04
Baseline | [1076cf52f60a845cf59e316345e2e599a6fcd3ac](https://github.com/dotnet/runtime/commit/1076cf52f60a845cf59e316345e2e599a6fcd3ac)
Compare | [042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5](https://github.com/dotnet/runtime/commit/042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5)
Diff | [Diff](https://github.com/dotnet/runtime/compare/1076cf52f60a845cf59e316345e2e599a6fcd3ac...042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5)


### Regressions in System.Tests.Perf_Version

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Ctor3 - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.Tests.Perf_Version.Ctor3.html>) | 50.11 ns | 86.08 ns | 1.72 | 0.03 | False | | |
[Ctor2 - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.Tests.Perf_Version.Ctor2.html>) | 47.39 ns | 71.32 ns | 1.51 | 0.05 | False | | |
[Ctor4 - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.Tests.Perf_Version.Ctor4.html>) | 51.76 ns | 102.99 ns | 1.99 | 0.10 | False | | |

[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/12_06_2022/refs/heads/main_arm64_ubuntu%2020.04_LLVM=false_MonoAOT=false_MonoInterpreter=true_Regression/System.Tests.Perf_Version.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Version*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-b89c48bc-3b15-4c42-bf2f-0f10ccdf72a097efc7d144c41c7bc/36e812a2-6a6d-48e4-9527-d4d27e4b6cea.zip?sv=2021-08-06&se=2022-12-30T03%3A23%3A43Z&sr=c&sp=rl&sig=PIfAKs4%2FzmTpHd5aoYvhQ%2FZBf69DVraSljKvplTqrsQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-4d58229d-cbfe-4c8c-9722-1260f0d85e1173f79f6fd394416b8/9b7e48a4-2e2a-4941-8d7d-101c77e4b96e.zip?sv=2021-08-06&se=2023-01-02T03%3A27%3A24Z&sr=c&sp=rl&sig=Ee4t7qJeIJTq8BkbX9HMX2nxK%2BS66uXk7mhtDxvm%2BkA%3D>)
### Histogram

#### System.Tests.Perf_Version.Ctor3

```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.
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 12/1/2022 1:41:45 AM, 12/6/2022 2:12:43 AM falls between 11/26/2022 10:41:09 PM and 12/6/2022 2:12:43 AM.
IsRegressionStdDev: Marked as regression because -102.11659169159766 (T) = (0 -86.74571476872939) / Math.Sqrt((0.12230139019819382 / (7)) + (0.34097203649353724 / (3))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (7) + (3) - 2, .025) and -0.7430184405411777 = (49.76752554711717 - 86.74571476872939) / 49.76752554711717 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.

```#### System.Tests.Perf_Version.Ctor2

```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.
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 12/1/2022 1:41:45 AM, 12/6/2022 2:12:43 AM falls between 11/26/2022 10:41:09 PM and 12/6/2022 2:12:43 AM.
IsRegressionStdDev: Marked as regression because -130.89007952591638 (T) = (0 -71.46053405222891) / Math.Sqrt((0.12904052784230644 / (7)) + (0.047092010962607275 / (3))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (7) + (3) - 2, .025) and -0.5114678426116724 = (47.278898060280206 - 71.46053405222891) / 47.278898060280206 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.

```#### System.Tests.Perf_Version.Ctor4

```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.
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 12/1/2022 1:41:45 AM, 12/6/2022 2:12:43 AM falls between 11/26/2022 10:41:09 PM and 12/6/2022 2:12:43 AM.
IsRegressionStdDev: Marked as regression because -69.91395572248736 (T) = (0 -101.93066727444004) / Math.Sqrt((1.471178010925077 / (7)) + (0.8878575041028844 / (3))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (7) + (3) - 2, .025) and -0.9529804518972763 = (52.19236432982046 - 101.93066727444004) / 52.19236432982046 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.

```

### 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 | arm64
-- | --
OS | ubuntu 20.04
Baseline | [1076cf52f60a845cf59e316345e2e599a6fcd3ac](https://github.com/dotnet/runtime/commit/1076cf52f60a845cf59e316345e2e599a6fcd3ac)
Compare | [042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5](https://github.com/dotnet/runtime/commit/042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5)
Diff | [Diff](https://github.com/dotnet/runtime/compare/1076cf52f60a845cf59e316345e2e599a6fcd3ac...042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5)


### Regressions in System.Tests.Perf_Int16

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ToString - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.Tests.Perf_Int16.ToString(value%3a%2032767).html>) | 50.75 ns | 363.06 ns | 7.15 | 0.10 | False | | |
[ToString - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.Tests.Perf_Int16.ToString(value%3a%200).html>) | 24.27 ns | 50.49 ns | 2.08 | 0.13 | False | | |

[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/12_06_2022/refs/heads/main_arm64_ubuntu%2020.04_LLVM=false_MonoAOT=false_MonoInterpreter=true_Regression/System.Tests.Perf_Int16.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Int16*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-b89c48bc-3b15-4c42-bf2f-0f10ccdf72a097efc7d144c41c7bc/36e812a2-6a6d-48e4-9527-d4d27e4b6cea.zip?sv=2021-08-06&se=2022-12-30T03%3A23%3A43Z&sr=c&sp=rl&sig=PIfAKs4%2FzmTpHd5aoYvhQ%2FZBf69DVraSljKvplTqrsQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-4d58229d-cbfe-4c8c-9722-1260f0d85e1173f79f6fd394416b8/9b7e48a4-2e2a-4941-8d7d-101c77e4b96e.zip?sv=2021-08-06&se=2023-01-02T03%3A27%3A24Z&sr=c&sp=rl&sig=Ee4t7qJeIJTq8BkbX9HMX2nxK%2BS66uXk7mhtDxvm%2BkA%3D>)
### Histogram

#### System.Tests.Perf_Int16.ToString(value: 32767)

```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.
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 12/1/2022 1:41:45 AM, 12/6/2022 2:12:43 AM falls between 11/26/2022 10:41:09 PM and 12/6/2022 2:12:43 AM.
IsRegressionStdDev: Marked as regression because -56.388800046236824 (T) = (0 -369.86237428362614) / Math.Sqrt((0.4866799662928942 / (7)) + (96.02840362269899 / (3))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (7) + (3) - 2, .025) and -6.326084703684954 = (50.485680857278204 - 369.86237428362614) / 50.485680857278204 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.

```#### System.Tests.Perf_Int16.ToString(value: 0)

```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.
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 12/1/2022 1:41:45 AM, 12/6/2022 2:12:43 AM falls between 11/26/2022 10:41:09 PM and 12/6/2022 2:12:43 AM.
IsRegressionStdDev: Marked as regression because -80.48997064927724 (T) = (0 -50.725437409996665) / Math.Sqrt((0.3549137971977588 / (7)) + (0.15089070297483032 / (3))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (7) + (3) - 2, .025) and -1.0172795589575365 = (25.145467411670943 - 50.725437409996665) / 25.145467411670943 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.

```

### 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 | arm64
-- | --
OS | ubuntu 20.04
Baseline | [1076cf52f60a845cf59e316345e2e599a6fcd3ac](https://github.com/dotnet/runtime/commit/1076cf52f60a845cf59e316345e2e599a6fcd3ac)
Compare | [042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5](https://github.com/dotnet/runtime/commit/042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5)
Diff | [Diff](https://github.com/dotnet/runtime/compare/1076cf52f60a845cf59e316345e2e599a6fcd3ac...042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5)


### Regressions in System.Numerics.Tests.Perf_Matrix4x4

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[CreatePerspectiveFieldOfViewBenchmark - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.Numerics.Tests.Perf_Matrix4x4.CreatePerspectiveFieldOfViewBenchmark.html>) | 103.09 ns | 245.60 ns | 2.38 | 0.19 | False | | |
[CreatePerspectiveBenchmark - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.Numerics.Tests.Perf_Matrix4x4.CreatePerspectiveBenchmark.html>) | 89.33 ns | 170.42 ns | 1.91 | 0.17 | False | | |
[CreatePerspectiveOffCenterBenchmark - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.Numerics.Tests.Perf_Matrix4x4.CreatePerspectiveOffCenterBenchmark.html>) | 101.51 ns | 178.94 ns | 1.76 | 0.13 | False | | |

[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/12_06_2022/refs/heads/main_arm64_ubuntu%2020.04_LLVM=false_MonoAOT=false_MonoInterpreter=true_Regression/System.Numerics.Tests.Perf_Matrix4x4.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Numerics.Tests.Perf_Matrix4x4*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-b89c48bc-3b15-4c42-bf2f-0f10ccdf72a097efc7d144c41c7bc/36e812a2-6a6d-48e4-9527-d4d27e4b6cea.zip?sv=2021-08-06&se=2022-12-30T03%3A23%3A43Z&sr=c&sp=rl&sig=PIfAKs4%2FzmTpHd5aoYvhQ%2FZBf69DVraSljKvplTqrsQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-4d58229d-cbfe-4c8c-9722-1260f0d85e1173f79f6fd394416b8/9b7e48a4-2e2a-4941-8d7d-101c77e4b96e.zip?sv=2021-08-06&se=2023-01-02T03%3A27%3A24Z&sr=c&sp=rl&sig=Ee4t7qJeIJTq8BkbX9HMX2nxK%2BS66uXk7mhtDxvm%2BkA%3D>)
### Histogram

#### System.Numerics.Tests.Perf_Matrix4x4.CreatePerspectiveFieldOfViewBenchmark

```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.
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 12/1/2022 1:41:45 AM, 12/6/2022 2:12:43 AM falls between 11/26/2022 10:41:09 PM and 12/6/2022 2:12:43 AM.
IsRegressionStdDev: Marked as regression because -47.407465925003 (T) = (0 -244.7283279584433) / Math.Sqrt((16.955750812608382 / (6)) + (19.593654446125736 / (3))) is less than -2.3646242515927898 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (3) - 2, .025) and -1.4543703149147356 = (99.71124832763678 - 244.7283279584433) / 99.71124832763678 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.

```#### System.Numerics.Tests.Perf_Matrix4x4.CreatePerspectiveBenchmark

```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.
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 12/1/2022 1:41:45 AM, 12/6/2022 2:12:43 AM falls between 11/26/2022 10:41:09 PM and 12/6/2022 2:12:43 AM.
IsRegressionStdDev: Marked as regression because -28.27856125928147 (T) = (0 -171.1409131619612) / Math.Sqrt((7.888483020637348 / (6)) + (21.182069958258506 / (3))) is less than -2.3646242515927898 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (3) - 2, .025) and -0.9164335188808791 = (89.30177409018638 - 171.1409131619612) / 89.30177409018638 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.

```#### System.Numerics.Tests.Perf_Matrix4x4.CreatePerspectiveOffCenterBenchmark

```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.
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 12/1/2022 1:41:45 AM, 12/6/2022 2:12:43 AM falls between 11/26/2022 10:41:09 PM and 12/6/2022 2:12:43 AM.
IsRegressionStdDev: Marked as regression because -31.55669924340902 (T) = (0 -183.25801278540254) / Math.Sqrt((7.261748400179219 / (7)) + (17.08249335847475 / (3))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (7) + (3) - 2, .025) and -0.807574409516796 = (101.38338528171097 - 183.25801278540254) / 101.38338528171097 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.

```

### 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 | arm64
-- | --
OS | ubuntu 20.04
Baseline | [1076cf52f60a845cf59e316345e2e599a6fcd3ac](https://github.com/dotnet/runtime/commit/1076cf52f60a845cf59e316345e2e599a6fcd3ac)
Compare | [042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5](https://github.com/dotnet/runtime/commit/042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5)
Diff | [Diff](https://github.com/dotnet/runtime/compare/1076cf52f60a845cf59e316345e2e599a6fcd3ac...042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5)


### Regressions in LinqBenchmarks

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Where01ForX - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/LinqBenchmarks.Where01ForX.html>) | 5.23 secs | 5.63 secs | 1.08 | 0.04 | False | | |
[Where01LinqQueryX - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/LinqBenchmarks.Where01LinqQueryX.html>) | 5.42 secs | 5.88 secs | 1.09 | 0.03 | False | | |
[Where01LinqMethodX - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/LinqBenchmarks.Where01LinqMethodX.html>) | 5.55 secs | 6.02 secs | 1.08 | 0.03 | False | | |

[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/12_06_2022/refs/heads/main_arm64_ubuntu%2020.04_LLVM=false_MonoAOT=false_MonoInterpreter=true_Regression/LinqBenchmarks.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'LinqBenchmarks*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-b89c48bc-3b15-4c42-bf2f-0f10ccdf72a097efc7d144c41c7bc/36e812a2-6a6d-48e4-9527-d4d27e4b6cea.zip?sv=2021-08-06&se=2022-12-30T03%3A23%3A43Z&sr=c&sp=rl&sig=PIfAKs4%2FzmTpHd5aoYvhQ%2FZBf69DVraSljKvplTqrsQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-4d58229d-cbfe-4c8c-9722-1260f0d85e1173f79f6fd394416b8/9b7e48a4-2e2a-4941-8d7d-101c77e4b96e.zip?sv=2021-08-06&se=2023-01-02T03%3A27%3A24Z&sr=c&sp=rl&sig=Ee4t7qJeIJTq8BkbX9HMX2nxK%2BS66uXk7mhtDxvm%2BkA%3D>)
### Histogram

#### LinqBenchmarks.Where01ForX

```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.
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 12/1/2022 1:41:45 AM, 12/6/2022 2:12:43 AM falls between 11/26/2022 10:41:09 PM and 12/6/2022 2:12:43 AM.
IsRegressionStdDev: Marked as regression because -14.936972236005152 (T) = (0 -5631493356.288889) / Math.Sqrt((3694169213402831.5 / (7)) + (43721919026826.195 / (3))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (7) + (3) - 2, .025) and -0.06583450163764645 = (5283647083.70403 - 5631493356.288889) / 5283647083.70403 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.

```#### LinqBenchmarks.Where01LinqQueryX

```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.
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 12/1/2022 1:41:45 AM, 12/6/2022 2:12:43 AM falls between 11/26/2022 10:41:09 PM and 12/6/2022 2:12:43 AM.
IsRegressionStdDev: Marked as regression because -13.734392138221246 (T) = (0 -5893148331.555554) / Math.Sqrt((3774102618403431.5 / (7)) + (610818891582227.5 / (3))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (7) + (3) - 2, .025) and -0.06782461999228462 = (5518835416.623129 - 5893148331.555554) / 5518835416.623129 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.

```#### LinqBenchmarks.Where01LinqMethodX

```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.
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 12/1/2022 1:41:45 AM, 12/6/2022 2:12:43 AM falls between 11/26/2022 10:41:09 PM and 12/6/2022 2:12:43 AM.
IsRegressionStdDev: Marked as regression because -9.86345996511963 (T) = (0 -5980419743.822223) / Math.Sqrt((2693421689581077.5 / (7)) + (5661386090254048 / (3))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (7) + (3) - 2, .025) and -0.08531989186277468 = (5510282994.590477 - 5980419743.822223) / 5510282994.590477 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.

```

### 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 | arm64
-- | --
OS | ubuntu 20.04
Baseline | [1076cf52f60a845cf59e316345e2e599a6fcd3ac](https://github.com/dotnet/runtime/commit/1076cf52f60a845cf59e316345e2e599a6fcd3ac)
Compare | [042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5](https://github.com/dotnet/runtime/commit/042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5)
Diff | [Diff](https://github.com/dotnet/runtime/compare/1076cf52f60a845cf59e316345e2e599a6fcd3ac...042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5)


### Regressions in System.Perf_Convert

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ChangeType - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.Perf_Convert.ChangeType.html>) | 242.81 ns | 550.82 ns | 2.27 | 0.03 | False | | |

[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/12_06_2022/refs/heads/main_arm64_ubuntu%2020.04_LLVM=false_MonoAOT=false_MonoInterpreter=true_Regression/System.Perf_Convert.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Perf_Convert*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-b89c48bc-3b15-4c42-bf2f-0f10ccdf72a097efc7d144c41c7bc/36e812a2-6a6d-48e4-9527-d4d27e4b6cea.zip?sv=2021-08-06&se=2022-12-30T03%3A23%3A43Z&sr=c&sp=rl&sig=PIfAKs4%2FzmTpHd5aoYvhQ%2FZBf69DVraSljKvplTqrsQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-4d58229d-cbfe-4c8c-9722-1260f0d85e1173f79f6fd394416b8/9b7e48a4-2e2a-4941-8d7d-101c77e4b96e.zip?sv=2021-08-06&se=2023-01-02T03%3A27%3A24Z&sr=c&sp=rl&sig=Ee4t7qJeIJTq8BkbX9HMX2nxK%2BS66uXk7mhtDxvm%2BkA%3D>)
### Histogram

#### System.Perf_Convert.ChangeType

```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.
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 12/1/2022 1:41:45 AM, 12/6/2022 2:12:43 AM falls between 11/26/2022 10:41:09 PM and 12/6/2022 2:12:43 AM.
IsRegressionStdDev: Marked as regression because -278.32962679684823 (T) = (0 -549.827499101074) / Math.Sqrt((3.4844707188457495 / (7)) + (2.212745495100914 / (3))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (7) + (3) - 2, .025) and -1.286444151406167 = (240.4727440042343 - 549.827499101074) / 240.4727440042343 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.

```

### 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 | arm64
-- | --
OS | ubuntu 20.04
Baseline | [1076cf52f60a845cf59e316345e2e599a6fcd3ac](https://github.com/dotnet/runtime/commit/1076cf52f60a845cf59e316345e2e599a6fcd3ac)
Compare | [042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5](https://github.com/dotnet/runtime/commit/042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5)
Diff | [Diff](https://github.com/dotnet/runtime/compare/1076cf52f60a845cf59e316345e2e599a6fcd3ac...042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5)


### Regressions in System.Tests.Perf_Byte

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ToString - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.Tests.Perf_Byte.ToString(value%3a%20255).html>) | 32.69 ns | 318.81 ns | 9.75 | 0.23 | False | | |
[ToString - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.Tests.Perf_Byte.ToString(value%3a%200).html>) | 5.57 ns | 38.47 ns | 6.91 | 0.53 | False | | |

[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/12_06_2022/refs/heads/main_arm64_ubuntu%2020.04_LLVM=false_MonoAOT=false_MonoInterpreter=true_Regression/System.Tests.Perf_Byte.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Byte*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-b89c48bc-3b15-4c42-bf2f-0f10ccdf72a097efc7d144c41c7bc/36e812a2-6a6d-48e4-9527-d4d27e4b6cea.zip?sv=2021-08-06&se=2022-12-30T03%3A23%3A43Z&sr=c&sp=rl&sig=PIfAKs4%2FzmTpHd5aoYvhQ%2FZBf69DVraSljKvplTqrsQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-4d58229d-cbfe-4c8c-9722-1260f0d85e1173f79f6fd394416b8/9b7e48a4-2e2a-4941-8d7d-101c77e4b96e.zip?sv=2021-08-06&se=2023-01-02T03%3A27%3A24Z&sr=c&sp=rl&sig=Ee4t7qJeIJTq8BkbX9HMX2nxK%2BS66uXk7mhtDxvm%2BkA%3D>)
### Histogram

#### System.Tests.Perf_Byte.ToString(value: 255)

```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.
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 12/1/2022 1:41:45 AM, 12/6/2022 2:12:43 AM falls between 11/26/2022 10:41:09 PM and 12/6/2022 2:12:43 AM.
IsRegressionStdDev: Marked as regression because -195.61171260977292 (T) = (0 -320.29023052152485) / Math.Sqrt((1.5811890951979486 / (7)) + (5.9246995311702335 / (3))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (7) + (3) - 2, .025) and -9.641055212020607 = (30.09948018686256 - 320.29023052152485) / 30.09948018686256 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.

```#### System.Tests.Perf_Byte.ToString(value: 0)

```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.
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 12/1/2022 1:41:45 AM, 12/6/2022 2:12:43 AM falls between 11/26/2022 10:41:09 PM and 12/6/2022 2:12:43 AM.
IsRegressionStdDev: Marked as regression because -214.07001758349224 (T) = (0 -38.46763301637973) / Math.Sqrt((0.16976291339258173 / (7)) + (0.00026408657920728166 / (3))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (7) + (3) - 2, .025) and -6.58722563160005 = (5.07005259684987 - 38.46763301637973) / 5.07005259684987 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.

```

### 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 | arm64
-- | --
OS | ubuntu 20.04
Baseline | [1076cf52f60a845cf59e316345e2e599a6fcd3ac](https://github.com/dotnet/runtime/commit/1076cf52f60a845cf59e316345e2e599a6fcd3ac)
Compare | [042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5](https://github.com/dotnet/runtime/commit/042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5)
Diff | [Diff](https://github.com/dotnet/runtime/compare/1076cf52f60a845cf59e316345e2e599a6fcd3ac...042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5)


### Regressions in System.Tests.Perf_SByte

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ToString - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.Tests.Perf_SByte.ToString(value%3a%20127).html>) | 48.55 ns | 335.43 ns | 6.91 | 0.13 | False | | |

[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/12_06_2022/refs/heads/main_arm64_ubuntu%2020.04_LLVM=false_MonoAOT=false_MonoInterpreter=true_Regression/System.Tests.Perf_SByte.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_SByte*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-b89c48bc-3b15-4c42-bf2f-0f10ccdf72a097efc7d144c41c7bc/36e812a2-6a6d-48e4-9527-d4d27e4b6cea.zip?sv=2021-08-06&se=2022-12-30T03%3A23%3A43Z&sr=c&sp=rl&sig=PIfAKs4%2FzmTpHd5aoYvhQ%2FZBf69DVraSljKvplTqrsQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-4d58229d-cbfe-4c8c-9722-1260f0d85e1173f79f6fd394416b8/9b7e48a4-2e2a-4941-8d7d-101c77e4b96e.zip?sv=2021-08-06&se=2023-01-02T03%3A27%3A24Z&sr=c&sp=rl&sig=Ee4t7qJeIJTq8BkbX9HMX2nxK%2BS66uXk7mhtDxvm%2BkA%3D>)
### Histogram

#### System.Tests.Perf_SByte.ToString(value: 127)

```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.
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 12/1/2022 1:41:45 AM, 12/6/2022 2:12:43 AM falls between 11/26/2022 10:41:09 PM and 12/6/2022 2:12:43 AM.
IsRegressionStdDev: Marked as regression because -131.10599664117586 (T) = (0 -331.373923544455) / Math.Sqrt((2.5541456821294104 / (7)) + (12.777817799214688 / (3))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (7) + (3) - 2, .025) and -5.701772953166281 = (49.445710241182674 - 331.373923544455) / 49.445710241182674 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.

```

### 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 | arm64
-- | --
OS | ubuntu 20.04
Baseline | [1076cf52f60a845cf59e316345e2e599a6fcd3ac](https://github.com/dotnet/runtime/commit/1076cf52f60a845cf59e316345e2e599a6fcd3ac)
Compare | [042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5](https://github.com/dotnet/runtime/commit/042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5)
Diff | [Diff](https://github.com/dotnet/runtime/compare/1076cf52f60a845cf59e316345e2e599a6fcd3ac...042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5)


### Regressions in System.Tests.Perf_Int32

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ToString - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.Tests.Perf_Int32.ToString(value%3a%204).html>) | 26.24 ns | 50.38 ns | 1.92 | 0.07 | False | | |
[ToString - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.Tests.Perf_Int32.ToString(value%3a%202147483647).html>) | 58.89 ns | 464.55 ns | 7.89 | 0.10 | False | | |
[ToString - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.Tests.Perf_Int32.ToString(value%3a%2012345).html>) | 49.52 ns | 356.36 ns | 7.20 | 0.07 | False | | |

[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/12_06_2022/refs/heads/main_arm64_ubuntu%2020.04_LLVM=false_MonoAOT=false_MonoInterpreter=true_Regression/System.Tests.Perf_Int32.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Int32*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-b89c48bc-3b15-4c42-bf2f-0f10ccdf72a097efc7d144c41c7bc/36e812a2-6a6d-48e4-9527-d4d27e4b6cea.zip?sv=2021-08-06&se=2022-12-30T03%3A23%3A43Z&sr=c&sp=rl&sig=PIfAKs4%2FzmTpHd5aoYvhQ%2FZBf69DVraSljKvplTqrsQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-4d58229d-cbfe-4c8c-9722-1260f0d85e1173f79f6fd394416b8/9b7e48a4-2e2a-4941-8d7d-101c77e4b96e.zip?sv=2021-08-06&se=2023-01-02T03%3A27%3A24Z&sr=c&sp=rl&sig=Ee4t7qJeIJTq8BkbX9HMX2nxK%2BS66uXk7mhtDxvm%2BkA%3D>)
### Histogram

#### System.Tests.Perf_Int32.ToString(value: 4)

```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.
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 12/1/2022 1:41:45 AM, 12/6/2022 2:12:43 AM falls between 11/26/2022 10:41:09 PM and 12/6/2022 2:12:43 AM.
IsRegressionStdDev: Marked as regression because -397.7799585017025 (T) = (0 -50.363405275838055) / Math.Sqrt((0.005876323844439421 / (7)) + (0.0086335361594911 / (3))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (7) + (3) - 2, .025) and -0.928832130475525 = (26.110828661601413 - 50.363405275838055) / 26.110828661601413 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.

```#### System.Tests.Perf_Int32.ToString(value: 2147483647)

```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.
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 12/1/2022 1:41:45 AM, 12/6/2022 2:12:43 AM falls between 11/26/2022 10:41:09 PM and 12/6/2022 2:12:43 AM.
IsRegressionStdDev: Marked as regression because -98.0488081341939 (T) = (0 -459.62939409938963) / Math.Sqrt((0.8294610613239252 / (7)) + (50.04965875014641 / (3))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (7) + (3) - 2, .025) and -6.961932675112278 = (57.72836983865956 - 459.62939409938963) / 57.72836983865956 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.

```#### System.Tests.Perf_Int32.ToString(value: 12345)

```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.
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 12/1/2022 1:41:45 AM, 12/6/2022 2:12:43 AM falls between 11/26/2022 10:41:09 PM and 12/6/2022 2:12:43 AM.
IsRegressionStdDev: Marked as regression because -186.46041601920334 (T) = (0 -359.6577200179263) / Math.Sqrt((0.225274352613395 / (7)) + (8.157075364986618 / (3))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (7) + (3) - 2, .025) and -6.13886458571935 = (50.38024124135775 - 359.6577200179263) / 50.38024124135775 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.

```

### 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 | arm64
-- | --
OS | ubuntu 20.04
Baseline | [1076cf52f60a845cf59e316345e2e599a6fcd3ac](https://github.com/dotnet/runtime/commit/1076cf52f60a845cf59e316345e2e599a6fcd3ac)
Compare | [042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5](https://github.com/dotnet/runtime/commit/042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5)
Diff | [Diff](https://github.com/dotnet/runtime/compare/1076cf52f60a845cf59e316345e2e599a6fcd3ac...042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5)


### Regressions in System.Tests.Perf_UInt32

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ToString - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.Tests.Perf_UInt32.ToString(value%3a%200).html>) | 4.63 ns | 38.32 ns | 8.27 | 0.53 | False | | |
[ToString - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.Tests.Perf_UInt32.ToString(value%3a%2012345).html>) | 28.91 ns | 353.59 ns | 12.23 | 0.21 | False | | |
[ToString - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04_LLVM=false_MonoAOT=false_MonoInterpreter=true/System.Tests.Perf_UInt32.ToString(value%3a%204294967295).html>) | 36.10 ns | 445.83 ns | 12.35 | 0.20 | False | | |

[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/12_06_2022/refs/heads/main_arm64_ubuntu%2020.04_LLVM=false_MonoAOT=false_MonoInterpreter=true_Regression/System.Tests.Perf_UInt32.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_UInt32*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-b89c48bc-3b15-4c42-bf2f-0f10ccdf72a097efc7d144c41c7bc/36e812a2-6a6d-48e4-9527-d4d27e4b6cea.zip?sv=2021-08-06&se=2022-12-30T03%3A23%3A43Z&sr=c&sp=rl&sig=PIfAKs4%2FzmTpHd5aoYvhQ%2FZBf69DVraSljKvplTqrsQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-4d58229d-cbfe-4c8c-9722-1260f0d85e1173f79f6fd394416b8/9b7e48a4-2e2a-4941-8d7d-101c77e4b96e.zip?sv=2021-08-06&se=2023-01-02T03%3A27%3A24Z&sr=c&sp=rl&sig=Ee4t7qJeIJTq8BkbX9HMX2nxK%2BS66uXk7mhtDxvm%2BkA%3D>)
### Histogram

#### System.Tests.Perf_UInt32.ToString(value: 0)

```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.
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 12/1/2022 1:41:45 AM, 12/6/2022 2:12:43 AM falls between 11/26/2022 10:41:09 PM and 12/6/2022 2:12:43 AM.
IsRegressionStdDev: Marked as regression because -121.83438545236052 (T) = (0 -38.26640494603868) / Math.Sqrt((0.5208478356031971 / (7)) + (0.01079345134623293 / (3))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (7) + (3) - 2, .025) and -8.027440808630944 = (4.2388984605086515 - 38.26640494603868) / 4.2388984605086515 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.

```#### System.Tests.Perf_UInt32.ToString(value: 12345)

```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.
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 12/1/2022 1:41:45 AM, 12/6/2022 2:12:43 AM falls between 11/26/2022 10:41:09 PM and 12/6/2022 2:12:43 AM.
IsRegressionStdDev: Marked as regression because -173.78822541441707 (T) = (0 -352.30509252906205) / Math.Sqrt((1.0149976066430988 / (7)) + (9.942195956545815 / (3))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (7) + (3) - 2, .025) and -11.11336904509903 = (29.08398903867308 - 352.30509252906205) / 29.08398903867308 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.

```#### System.Tests.Perf_UInt32.ToString(value: 4294967295)

```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.
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 12/1/2022 1:41:45 AM, 12/6/2022 2:12:43 AM falls between 11/26/2022 10:41:09 PM and 12/6/2022 2:12:43 AM.
IsRegressionStdDev: Marked as regression because -140.96911563937482 (T) = (0 -447.88611016078016) / Math.Sqrt((0.1495139313555134 / (7)) + (25.547906105451304 / (3))) is less than -2.3060041352041716 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (7) + (3) - 2, .025) and -11.443840500940496 = (35.992594900820954 - 447.88611016078016) / 35.992594900820954 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.

```

### 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	arm64
OS	ubuntu 20.04
Baseline	1076cf52f60a845cf59e316345e2e599a6fcd3ac
Compare	042d3ee8a7f8f5d4c86f1f7814e2a6a8e7bb18b5
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
Ctor3 - Duration of single invocation	50.11 ns	86.08 ns	1.72	0.03	False
Ctor2 - Duration of single invocation	47.39 ns	71.32 ns	1.51	0.05	False
Ctor4 - Duration of single invocation	51.76 ns	102.99 ns	1.99	0.10	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ToString - Duration of single invocation	50.75 ns	363.06 ns	7.15	0.10	False
ToString - Duration of single invocation	24.27 ns	50.49 ns	2.08	0.13	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
CreatePerspectiveFieldOfViewBenchmark - Duration of single invocation	103.09 ns	245.60 ns	2.38	0.19	False
CreatePerspectiveBenchmark - Duration of single invocation	89.33 ns	170.42 ns	1.91	0.17	False
CreatePerspectiveOffCenterBenchmark - Duration of single invocation	101.51 ns	178.94 ns	1.76	0.13	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
Where01ForX - Duration of single invocation	5.23 secs	5.63 secs	1.08	0.04	False
Where01LinqQueryX - Duration of single invocation	5.42 secs	5.88 secs	1.09	0.03	False
Where01LinqMethodX - Duration of single invocation	5.55 secs	6.02 secs	1.08	0.03	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ToString - Duration of single invocation	32.69 ns	318.81 ns	9.75	0.23	False
ToString - Duration of single invocation	5.57 ns	38.47 ns	6.91	0.53	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
ToString - Duration of single invocation	26.24 ns	50.38 ns	1.92	0.07	False
ToString - Duration of single invocation	58.89 ns	464.55 ns	7.89	0.10	False
ToString - Duration of single invocation	49.52 ns	356.36 ns	7.20	0.07	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
ToString - Duration of single invocation	4.63 ns	38.32 ns	8.27	0.53	False
ToString - Duration of single invocation	28.91 ns	353.59 ns	12.23	0.21	False
ToString - Duration of single invocation	36.10 ns	445.83 ns	12.35	0.20	False

Uh oh!

[Perf] Linux/arm64: 29 Regressions on 12/2/2022 1:56:04 AM #79336

Description

Run Information

Regressions in System.Tests.Perf_Version

Repro

Payloads

Histogram

System.Tests.Perf_Version.Ctor3

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Regressions in System.Tests.Perf_Int16

Repro

Payloads

Histogram

System.Tests.Perf_Int16.ToString(value: 32767)

Description of detection logic

Description of detection logic

Docs

Run Information

Regressions in System.Numerics.Tests.Perf_Matrix4x4

Repro

Payloads

Histogram

System.Numerics.Tests.Perf_Matrix4x4.CreatePerspectiveFieldOfViewBenchmark

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Run Information

Regressions in LinqBenchmarks

Repro

Payloads

Histogram

LinqBenchmarks.Where01ForX

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Run Information

Regressions in System.Perf_Convert

Repro

Payloads

Histogram

System.Perf_Convert.ChangeType

Description of detection logic

Docs

Run Information

Regressions in System.Tests.Perf_Byte

Repro

Payloads

Histogram

System.Tests.Perf_Byte.ToString(value: 255)

Description of detection logic

Description of detection logic

Docs

Run Information

Regressions in System.Tests.Perf_SByte

Repro

Payloads

Histogram

System.Tests.Perf_SByte.ToString(value: 127)

Description of detection logic

Docs

Run Information

Regressions in System.Tests.Perf_Int32

Repro

Payloads

Histogram

System.Tests.Perf_Int32.ToString(value: 4)

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Run Information

Regressions in System.Tests.Perf_UInt32

Repro

Payloads