[Perf] Linux/arm64: 8 Regressions on 10/25/2022 10:16:52 PM

### Run Information

Architecture | arm64
-- | --
OS | ubuntu 20.04
Baseline | [afdd009ff95ea3da2e5b34f09f4a00c548f9be33](https://github.com/dotnet/runtime/commit/afdd009ff95ea3da2e5b34f09f4a00c548f9be33)
Compare | [a8ea8e67dc20689aa2e4c738a2f84ea3483ec872](https://github.com/dotnet/runtime/commit/a8ea8e67dc20689aa2e4c738a2f84ea3483ec872)
Diff | [Diff](https://github.com/dotnet/runtime/compare/afdd009ff95ea3da2e5b34f09f4a00c548f9be33...a8ea8e67dc20689aa2e4c738a2f84ea3483ec872)


### 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
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Parse - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Tests.Perf_Int32.Parse(value%3a%20%22-2147483648%22).html>) | 23.29 ns | 24.63 ns | 1.06 | 0.02 | False | | |
[TryParseSpan - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Tests.Perf_Int32.TryParseSpan(value%3a%20%22-2147483648%22).html>) | 21.90 ns | 23.15 ns | 1.06 | 0.04 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_27_2022/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Tests.Perf_Int32_1.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_27_2022/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Tests.Perf_Int32_2.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_27_2022/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Tests.Perf_Int32.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_Int32*'
```

### Related Issues

#### Regressions

* [[Perf] Windows/arm64: 1 Regression on 10/25/2022 10:16:52 PM](<https://github.com/dotnet/perf-autofiling-issues/issues/9244>)
#### Improvements

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-88e47db8-d6e7-4de6-975a-6467b0eabac2e0727299f344c09ad/a1d3e365-2684-4bfe-8100-e1182e1a0757.zip?sv=2021-08-06&se=2022-11-24T14%3A57%3A22Z&sr=c&sp=rl&sig=tqN9K0nn6NjrXivSJr7cnolpZwmSHYRvHXUcbdkkqJs%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-570eef58-094b-4245-80b1-cc169fcaa46efbad9c14dda45bfa7/f657dd98-0b9f-4ba3-a077-c4297cc012e4.zip?sv=2021-08-06&se=2022-11-25T05%3A02%3A31Z&sr=c&sp=rl&sig=uxOGriHmLEWtPUJiezfHOk0f8mcpyhphlUIiWSFf%2Fgo%3D>)
### Histogram

### Edge Detector Info

[Collection Data](<https://pvscmdupload.blob.core.windows.net/autofilereport/reports/10_27_2022/refs/heads/main_arm64_ubuntu 20.04/System.Tests.Perf_Int32.TryParseSpan(value- --2147483648-).txt?sv=2018-03-28&sr=c&sig=JoytaT70%2ByX0ce090BDZwAg8TDntVqLeANIlSNxVryw%3D&se=2022-11-24T00%3A17%3A57Z&sp=racwdl>)
#### System.Tests.Perf_Int32.Parse(value: "-2147483648")

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 24.632511600690595 > 24.417097672605156.
IsChangePoint: Marked as a change because one of 8/17/2022 2:19:52 AM, 10/25/2022 5:34:05 PM, 10/27/2022 12:34:03 AM falls between 10/18/2022 9:26:37 AM and 10/27/2022 12:34:03 AM.
IsRegressionStdDev: Marked as regression because -21.367659830262333 (T) = (0 -24.78464680275257) / Math.Sqrt((0.004289588449461454 / (33)) + (0.025921496883138544 / (5))) is less than -2.028094000977961 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (33) + (5) - 2, .025) and -0.06706362768607209 = (23.226962441310164 - 24.78464680275257) / 23.226962441310164 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_Int32.TryParseSpan(value: "-2147483648")

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 23.148379235826216 > 22.916317556003428.
IsChangePoint: Marked as a change because one of 9/21/2022 2:58:31 PM, 10/25/2022 5:34:05 PM, 10/27/2022 12:34:03 AM falls between 10/18/2022 9:26:37 AM and 10/27/2022 12:34:03 AM.
IsRegressionStdDev: Marked as regression because -16.118828279001892 (T) = (0 -23.265440551407238) / Math.Sqrt((0.03313309523689312 / (33)) + (0.038461681043579714 / (5))) is less than -2.028094000977961 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (33) + (5) - 2, .025) and -0.06907133709889778 = (21.76229007742539 - 23.265440551407238) / 21.76229007742539 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>
### Run Information

Architecture | arm64
-- | --
OS | ubuntu 20.04
Baseline | [afdd009ff95ea3da2e5b34f09f4a00c548f9be33](https://github.com/dotnet/runtime/commit/afdd009ff95ea3da2e5b34f09f4a00c548f9be33)
Compare | [a8ea8e67dc20689aa2e4c738a2f84ea3483ec872](https://github.com/dotnet/runtime/commit/a8ea8e67dc20689aa2e4c738a2f84ea3483ec872)
Diff | [Diff](https://github.com/dotnet/runtime/compare/afdd009ff95ea3da2e5b34f09f4a00c548f9be33...a8ea8e67dc20689aa2e4c738a2f84ea3483ec872)


### Regressions in System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Count - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock.Count(Pattern%3a%20%22(%3fs).*%22%2c%20Options%3a%20None).html>) | 2.04 ms | 2.19 ms | 1.07 | 0.00 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_27_2022/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_27_2022/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock*'
```

### Related Issues

#### Regressions

* [[Perf] Windows/arm64: 1 Regression on 10/25/2022 10:16:52 PM](<https://github.com/dotnet/perf-autofiling-issues/issues/9244>)
#### Improvements

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-88e47db8-d6e7-4de6-975a-6467b0eabac2e0727299f344c09ad/a1d3e365-2684-4bfe-8100-e1182e1a0757.zip?sv=2021-08-06&se=2022-11-24T14%3A57%3A22Z&sr=c&sp=rl&sig=tqN9K0nn6NjrXivSJr7cnolpZwmSHYRvHXUcbdkkqJs%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-570eef58-094b-4245-80b1-cc169fcaa46efbad9c14dda45bfa7/f657dd98-0b9f-4ba3-a077-c4297cc012e4.zip?sv=2021-08-06&se=2022-11-25T05%3A02%3A31Z&sr=c&sp=rl&sig=uxOGriHmLEWtPUJiezfHOk0f8mcpyhphlUIiWSFf%2Fgo%3D>)
### Histogram

### Edge Detector Info

[Collection Data](<https://pvscmdupload.blob.core.windows.net/autofilereport/reports/10_27_2022/refs/heads/main_arm64_ubuntu 20.04/System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock.Count(Pattern- -(-s).--, Options- None).txt?sv=2018-03-28&sr=c&sig=JoytaT70%2ByX0ce090BDZwAg8TDntVqLeANIlSNxVryw%3D&se=2022-11-24T00%3A17%3A57Z&sp=racwdl>)
#### System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock.Count(Pattern: "(?s).*", Options: None)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 2.1899980488095236 > 2.1356328921666665.
IsChangePoint: Marked as a change because one of 10/25/2022 5:34:05 PM, 10/27/2022 12:34:03 AM falls between 10/18/2022 9:26:37 AM and 10/27/2022 12:34:03 AM.
IsRegressionStdDev: Marked as regression because -248.87284059613955 (T) = (0 -2188936.53581746) / Math.Sqrt((8463003.27484223 / (33)) + (632360.2174678757 / (5))) is less than -2.028094000977961 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (33) + (5) - 2, .025) and -0.07568077284491133 = (2034931.357960653 - 2188936.53581746) / 2034931.357960653 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


### Run Information

Architecture | arm64
-- | --
OS | ubuntu 20.04
Baseline | [afdd009ff95ea3da2e5b34f09f4a00c548f9be33](https://github.com/dotnet/runtime/commit/afdd009ff95ea3da2e5b34f09f4a00c548f9be33)
Compare | [a8ea8e67dc20689aa2e4c738a2f84ea3483ec872](https://github.com/dotnet/runtime/commit/a8ea8e67dc20689aa2e4c738a2f84ea3483ec872)
Diff | [Diff](https://github.com/dotnet/runtime/compare/afdd009ff95ea3da2e5b34f09f4a00c548f9be33...a8ea8e67dc20689aa2e4c738a2f84ea3483ec872)


### Regressions in System.MathBenchmarks.Double

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Max - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.MathBenchmarks.Double.Max.html>) | 3.36 μs | 4.70 μs | 1.40 | 0.01 | False | | |
[Min - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.MathBenchmarks.Double.Min.html>) | 3.36 μs | 4.71 μs | 1.40 | 0.01 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_27_2022/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.MathBenchmarks.Double_1.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_27_2022/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.MathBenchmarks.Double_2.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_27_2022/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.MathBenchmarks.Double.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.MathBenchmarks.Double*'
```

### Related Issues

#### Regressions

* [[Perf] Windows/arm64: 1 Regression on 10/25/2022 10:16:52 PM](<https://github.com/dotnet/perf-autofiling-issues/issues/9244>)
#### Improvements

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-88e47db8-d6e7-4de6-975a-6467b0eabac2e0727299f344c09ad/a1d3e365-2684-4bfe-8100-e1182e1a0757.zip?sv=2021-08-06&se=2022-11-24T14%3A57%3A22Z&sr=c&sp=rl&sig=tqN9K0nn6NjrXivSJr7cnolpZwmSHYRvHXUcbdkkqJs%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-570eef58-094b-4245-80b1-cc169fcaa46efbad9c14dda45bfa7/f657dd98-0b9f-4ba3-a077-c4297cc012e4.zip?sv=2021-08-06&se=2022-11-25T05%3A02%3A31Z&sr=c&sp=rl&sig=uxOGriHmLEWtPUJiezfHOk0f8mcpyhphlUIiWSFf%2Fgo%3D>)
### Histogram

### Edge Detector Info

[Collection Data](<https://pvscmdupload.blob.core.windows.net/autofilereport/reports/10_27_2022/refs/heads/main_arm64_ubuntu 20.04/System.MathBenchmarks.Double.Min.txt?sv=2018-03-28&sr=c&sig=JoytaT70%2ByX0ce090BDZwAg8TDntVqLeANIlSNxVryw%3D&se=2022-11-24T00%3A17%3A57Z&sp=racwdl>)
#### System.MathBenchmarks.Double.Max

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 4.704199704803537 > 3.5229303271877956.
IsChangePoint: Marked as a change because one of 7/28/2022 12:19:57 AM, 10/7/2022 4:12:34 PM, 10/25/2022 5:34:05 PM, 10/27/2022 12:34:03 AM falls between 10/18/2022 9:26:37 AM and 10/27/2022 12:34:03 AM.
IsRegressionStdDev: Marked as regression because -719.3497339728096 (T) = (0 -4702.373244418586) / Math.Sqrt((1.1486803895818931 / (33)) + (17.35879314825899 / (5))) is less than -2.028094000977961 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (33) + (5) - 2, .025) and -0.4014632318866617 = (3355.3311549160026 - 4702.373244418586) / 3355.3311549160026 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.MathBenchmarks.Double.Min

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 4.706557142677909 > 3.5229940892914695.
IsChangePoint: Marked as a change because one of 7/28/2022 12:19:57 AM, 10/7/2022 4:12:34 PM, 10/25/2022 5:34:05 PM, 10/27/2022 12:34:03 AM falls between 10/18/2022 9:26:37 AM and 10/27/2022 12:34:03 AM.
IsRegressionStdDev: Marked as regression because -380.9572996328128 (T) = (0 -4702.195851311515) / Math.Sqrt((0.835597943057459 / (33)) + (62.38099248108442 / (5))) is less than -2.028094000977961 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (33) + (5) - 2, .025) and -0.40145406150501944 = (3355.226532549939 - 4702.195851311515) / 3355.226532549939 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


### Run Information

Architecture | arm64
-- | --
OS | ubuntu 20.04
Baseline | [afdd009ff95ea3da2e5b34f09f4a00c548f9be33](https://github.com/dotnet/runtime/commit/afdd009ff95ea3da2e5b34f09f4a00c548f9be33)
Compare | [a8ea8e67dc20689aa2e4c738a2f84ea3483ec872](https://github.com/dotnet/runtime/commit/a8ea8e67dc20689aa2e4c738a2f84ea3483ec872)
Diff | [Diff](https://github.com/dotnet/runtime/compare/afdd009ff95ea3da2e5b34f09f4a00c548f9be33...a8ea8e67dc20689aa2e4c738a2f84ea3483ec872)


### Regressions in System.MathBenchmarks.Single

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Max - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.MathBenchmarks.Single.Max.html>) | 3.35 μs | 4.62 μs | 1.38 | 0.01 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_27_2022/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.MathBenchmarks.Single_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_27_2022/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.MathBenchmarks.Single.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.MathBenchmarks.Single*'
```

### Related Issues

#### Regressions

* [[Perf] Windows/arm64: 1 Regression on 10/25/2022 10:16:52 PM](<https://github.com/dotnet/perf-autofiling-issues/issues/9244>)
#### Improvements

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-88e47db8-d6e7-4de6-975a-6467b0eabac2e0727299f344c09ad/a1d3e365-2684-4bfe-8100-e1182e1a0757.zip?sv=2021-08-06&se=2022-11-24T14%3A57%3A22Z&sr=c&sp=rl&sig=tqN9K0nn6NjrXivSJr7cnolpZwmSHYRvHXUcbdkkqJs%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-570eef58-094b-4245-80b1-cc169fcaa46efbad9c14dda45bfa7/f657dd98-0b9f-4ba3-a077-c4297cc012e4.zip?sv=2021-08-06&se=2022-11-25T05%3A02%3A31Z&sr=c&sp=rl&sig=uxOGriHmLEWtPUJiezfHOk0f8mcpyhphlUIiWSFf%2Fgo%3D>)
### Histogram

### Edge Detector Info

[Collection Data](<https://pvscmdupload.blob.core.windows.net/autofilereport/reports/10_27_2022/refs/heads/main_arm64_ubuntu 20.04/System.MathBenchmarks.Single.Max.txt?sv=2018-03-28&sr=c&sig=JoytaT70%2ByX0ce090BDZwAg8TDntVqLeANIlSNxVryw%3D&se=2022-11-24T00%3A17%3A57Z&sp=racwdl>)
#### System.MathBenchmarks.Single.Max

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 4.617663316824365 > 3.515212398618343.
IsChangePoint: Marked as a change because one of 7/28/2022 12:19:57 AM, 10/7/2022 4:12:34 PM, 10/25/2022 5:34:05 PM, 10/27/2022 12:34:03 AM falls between 10/18/2022 9:26:37 AM and 10/27/2022 12:34:03 AM.
IsRegressionStdDev: Marked as regression because -65.18343381765234 (T) = (0 -4637.62723895371) / Math.Sqrt((4.1579468182330235 / (33)) + (1955.8646465061574 / (5))) is less than -2.028094000977961 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (33) + (5) - 2, .025) and -0.3851040978159002 = (3348.21566571534 - 4637.62723895371) / 3348.21566571534 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


### Run Information

Architecture | arm64
-- | --
OS | ubuntu 20.04
Baseline | [afdd009ff95ea3da2e5b34f09f4a00c548f9be33](https://github.com/dotnet/runtime/commit/afdd009ff95ea3da2e5b34f09f4a00c548f9be33)
Compare | [a8ea8e67dc20689aa2e4c738a2f84ea3483ec872](https://github.com/dotnet/runtime/commit/a8ea8e67dc20689aa2e4c738a2f84ea3483ec872)
Diff | [Diff](https://github.com/dotnet/runtime/compare/afdd009ff95ea3da2e5b34f09f4a00c548f9be33...a8ea8e67dc20689aa2e4c738a2f84ea3483ec872)


### Regressions in System.Text.Json.Tests.Perf_Strings

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[WriteStringsUtf16 - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted%3a%20True%2c%20SkipValidation%3a%20False%2c%20Escaped%3a%20OneEscaped).html>) | 14.92 ms | 15.88 ms | 1.06 | 0.00 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_27_2022/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Text.Json.Tests.Perf_Strings_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_27_2022/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Text.Json.Tests.Perf_Strings.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Text.Json.Tests.Perf_Strings*'
```

### Related Issues

#### Regressions

* [[Perf] Windows/arm64: 1 Regression on 10/25/2022 10:16:52 PM](<https://github.com/dotnet/perf-autofiling-issues/issues/9244>)
#### Improvements

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-88e47db8-d6e7-4de6-975a-6467b0eabac2e0727299f344c09ad/a1d3e365-2684-4bfe-8100-e1182e1a0757.zip?sv=2021-08-06&se=2022-11-24T14%3A57%3A22Z&sr=c&sp=rl&sig=tqN9K0nn6NjrXivSJr7cnolpZwmSHYRvHXUcbdkkqJs%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-570eef58-094b-4245-80b1-cc169fcaa46efbad9c14dda45bfa7/f657dd98-0b9f-4ba3-a077-c4297cc012e4.zip?sv=2021-08-06&se=2022-11-25T05%3A02%3A31Z&sr=c&sp=rl&sig=uxOGriHmLEWtPUJiezfHOk0f8mcpyhphlUIiWSFf%2Fgo%3D>)
### Histogram

### Edge Detector Info

[Collection Data](<https://pvscmdupload.blob.core.windows.net/autofilereport/reports/10_27_2022/refs/heads/main_arm64_ubuntu 20.04/System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted- True, SkipValidation- False, Escaped- OneEscaped).txt?sv=2018-03-28&sr=c&sig=JoytaT70%2ByX0ce090BDZwAg8TDntVqLeANIlSNxVryw%3D&se=2022-11-24T00%3A17%3A57Z&sp=racwdl>)
#### System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted: True, SkipValidation: False, Escaped: OneEscaped)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 15.880320466666667 > 15.599360721102942.
IsChangePoint: Marked as a change because one of 8/6/2022 1:07:13 AM, 10/25/2022 5:34:05 PM, 10/27/2022 12:34:03 AM falls between 10/18/2022 9:26:37 AM and 10/27/2022 12:34:03 AM.
IsRegressionStdDev: Marked as regression because -37.992647858158016 (T) = (0 -15801376.107222224) / Math.Sqrt((2421667831.8231554 / (33)) + (2666971929.5875583 / (5))) is less than -2.028094000977961 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (33) + (5) - 2, .025) and -0.06295566392693529 = (14865508.170723071 - 15801376.107222224) / 14865508.170723071 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


### Run Information

Architecture | arm64
-- | --
OS | ubuntu 20.04
Baseline | [afdd009ff95ea3da2e5b34f09f4a00c548f9be33](https://github.com/dotnet/runtime/commit/afdd009ff95ea3da2e5b34f09f4a00c548f9be33)
Compare | [a8ea8e67dc20689aa2e4c738a2f84ea3483ec872](https://github.com/dotnet/runtime/commit/a8ea8e67dc20689aa2e4c738a2f84ea3483ec872)
Diff | [Diff](https://github.com/dotnet/runtime/compare/afdd009ff95ea3da2e5b34f09f4a00c548f9be33...a8ea8e67dc20689aa2e4c738a2f84ea3483ec872)


### Regressions in System.Text.Perf_Utf8Encoding

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[GetByteCount - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Text.Perf_Utf8Encoding.GetByteCount(Input%3a%20EnglishAllAscii).html>) | 9.57 μs | 10.34 μs | 1.08 | 0.02 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_27_2022/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Text.Perf_Utf8Encoding_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_27_2022/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Text.Perf_Utf8Encoding.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Text.Perf_Utf8Encoding*'
```

### Related Issues

#### Regressions

* [[Perf] Windows/arm64: 1 Regression on 10/25/2022 10:16:52 PM](<https://github.com/dotnet/perf-autofiling-issues/issues/9244>)
#### Improvements

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-88e47db8-d6e7-4de6-975a-6467b0eabac2e0727299f344c09ad/a1d3e365-2684-4bfe-8100-e1182e1a0757.zip?sv=2021-08-06&se=2022-11-24T14%3A57%3A22Z&sr=c&sp=rl&sig=tqN9K0nn6NjrXivSJr7cnolpZwmSHYRvHXUcbdkkqJs%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-570eef58-094b-4245-80b1-cc169fcaa46efbad9c14dda45bfa7/f657dd98-0b9f-4ba3-a077-c4297cc012e4.zip?sv=2021-08-06&se=2022-11-25T05%3A02%3A31Z&sr=c&sp=rl&sig=uxOGriHmLEWtPUJiezfHOk0f8mcpyhphlUIiWSFf%2Fgo%3D>)
### Histogram

### Edge Detector Info

[Collection Data](<https://pvscmdupload.blob.core.windows.net/autofilereport/reports/10_27_2022/refs/heads/main_arm64_ubuntu 20.04/System.Text.Perf_Utf8Encoding.GetByteCount(Input- EnglishAllAscii).txt?sv=2018-03-28&sr=c&sig=JoytaT70%2ByX0ce090BDZwAg8TDntVqLeANIlSNxVryw%3D&se=2022-11-24T00%3A17%3A57Z&sp=racwdl>)
#### System.Text.Perf_Utf8Encoding.GetByteCount(Input: EnglishAllAscii)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 10.341321338300219 > 10.04419053792866.
IsChangePoint: Marked as a change because one of 10/25/2022 5:34:05 PM, 10/27/2022 12:34:03 AM falls between 10/18/2022 9:26:37 AM and 10/27/2022 12:34:03 AM.
IsRegressionStdDev: Marked as regression because -780.9666262078102 (T) = (0 -10342.405701166532) / Math.Sqrt((5.827832140118616 / (33)) + (4.042712192992345 / (5))) is less than -2.028094000977961 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (33) + (5) - 2, .025) and -0.08102042839598153 = (9567.262032700526 - 10342.405701166532) / 9567.262032700526 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>




Architecture	arm64
OS	ubuntu 20.04
Baseline	afdd009ff95ea3da2e5b34f09f4a00c548f9be33
Compare	a8ea8e67dc20689aa2e4c738a2f84ea3483ec872
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Parse - Duration of single invocation	23.29 ns	24.63 ns	1.06	0.02	False
TryParseSpan - Duration of single invocation	21.90 ns	23.15 ns	1.06	0.04	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Max - Duration of single invocation	3.36 μs	4.70 μs	1.40	0.01	False
Min - Duration of single invocation	3.36 μs	4.71 μs	1.40	0.01	False

Uh oh!

[Perf] Linux/arm64: 8 Regressions on 10/25/2022 10:16:52 PM #77546

Description

Run Information

Regressions in System.Tests.Perf_Int32

Repro

Related Issues

Regressions

Improvements

Payloads

Histogram

Edge Detector Info

System.Tests.Perf_Int32.Parse(value: "-2147483648")

Description of detection logic

Description of detection logic

Docs

Regressions in System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock

Repro

Related Issues

Regressions

Improvements

Payloads

Histogram

Edge Detector Info

System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock.Count(Pattern: "(?s).*", Options: None)

Description of detection logic

Docs

Run Information

Regressions in System.MathBenchmarks.Double

Repro

Related Issues

Regressions

Improvements

Payloads

Histogram

Edge Detector Info

System.MathBenchmarks.Double.Max

Description of detection logic

Description of detection logic

Docs

Run Information

Regressions in System.MathBenchmarks.Single

Repro

Related Issues

Regressions

Improvements

Payloads

Histogram

Edge Detector Info

System.MathBenchmarks.Single.Max

Description of detection logic

Docs

Run Information

Regressions in System.Text.Json.Tests.Perf_Strings

Repro

Related Issues

Regressions

Improvements

Payloads

Histogram

Edge Detector Info

System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted: True, SkipValidation: False, Escaped: OneEscaped)

Description of detection logic

Docs

Run Information

Regressions in System.Text.Perf_Utf8Encoding

Repro

Related Issues

Regressions

Improvements

Payloads

Histogram

Edge Detector Info

System.Text.Perf_Utf8Encoding.GetByteCount(Input: EnglishAllAscii)

Description of detection logic

Docs

Activity

Metadata

Metadata

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