[Perf] Linux/arm64: 29 Regressions on 1/27/2023 11:43:56 PM

### Run Information

Architecture | arm64
-- | --
OS | ubuntu 20.04
Baseline | [c50c745fa88f0850c8e8ebed37749118929d7e87](https://github.com/dotnet/runtime/commit/c50c745fa88f0850c8e8ebed37749118929d7e87)
Compare | [e07f4527bdedff6278accf9db8a8c7f9f2a48beb](https://github.com/dotnet/runtime/commit/e07f4527bdedff6278accf9db8a8c7f9f2a48beb)
Diff | [Diff](https://github.com/dotnet/runtime/compare/c50c745fa88f0850c8e8ebed37749118929d7e87...e07f4527bdedff6278accf9db8a8c7f9f2a48beb)


### Regressions in System.Collections.CreateAddAndClear&lt;String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ConcurrentQueue - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Collections.CreateAddAndClear(String).ConcurrentQueue(Size%3a%20512).html>) | 8.27 μs | 10.07 μs | 1.22 | 0.00 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_02_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Collections.CreateAddAndClear(String)_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_02_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Collections.CreateAddAndClear(String).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.CreateAddAndClear&lt;String&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-5d68486c-3672-4f81-a2b8-044da88aa5910fe7133f7674af6ac/9afa8667-26dc-44a1-9d02-59a9dc4c1ea2.zip?sv=2021-08-06&se=2023-02-26T15%3A34%3A05Z&sr=c&sp=rl&sig=%2BDx9T2o7En%2Bhi0UbtVj%2FDG84IU%2Bltv3eNnrmgkybzYI%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-02c11897-fd1c-4218-b4df-37d36661f6d9f50c82066ae43f68e/3b0fce36-4e0a-4c8f-860b-7fc856b14c9d.zip?sv=2021-08-06&se=2023-02-27T07%3A55%3A02Z&sr=c&sp=rl&sig=E96JC%2F7TFqc78NH0tFuF5hnfDDLwa%2FzgVvNLe31h9Zg%3D>)
### Histogram

#### System.Collections.CreateAddAndClear&lt;String&gt;.ConcurrentQueue(Size: 512)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 10.071544886250992 > 8.690614821057371.
IsChangePoint: Marked as a change because one of 1/27/2023 7:12:54 PM, 2/2/2023 2:17:49 AM falls between 1/24/2023 11:54:43 AM and 2/2/2023 2:17:49 AM.
IsRegressionStdDev: Marked as regression because -115.96901487670786 (T) = (0 -10138.163344797133) / Math.Sqrt((1792.8044408339288 / (24)) + (2886.4230344746566 / (16))) is less than -2.0243941639098457 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (24) + (16) - 2, .025) and -0.22354139893389938 = (8285.917708735278 - 10138.163344797133) / 8285.917708735278 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 | [c50c745fa88f0850c8e8ebed37749118929d7e87](https://github.com/dotnet/runtime/commit/c50c745fa88f0850c8e8ebed37749118929d7e87)
Compare | [e07f4527bdedff6278accf9db8a8c7f9f2a48beb](https://github.com/dotnet/runtime/commit/e07f4527bdedff6278accf9db8a8c7f9f2a48beb)
Diff | [Diff](https://github.com/dotnet/runtime/compare/c50c745fa88f0850c8e8ebed37749118929d7e87...e07f4527bdedff6278accf9db8a8c7f9f2a48beb)


### Regressions in System.Text.RegularExpressions.Tests.Perf_Regex_Cache

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[IsMatch_Multithreading - 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_Cache.IsMatch_Multithreading(total%3a%20400000%2c%20unique%3a%201%2c%20cacheSize%3a%2015).html>) | 44.91 ms | 52.38 ms | 1.17 | 0.70 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_02_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Text.RegularExpressions.Tests.Perf_Regex_Cache_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_02_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Text.RegularExpressions.Tests.Perf_Regex_Cache.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.RegularExpressions.Tests.Perf_Regex_Cache*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-5d68486c-3672-4f81-a2b8-044da88aa5910fe7133f7674af6ac/9afa8667-26dc-44a1-9d02-59a9dc4c1ea2.zip?sv=2021-08-06&se=2023-02-26T15%3A34%3A05Z&sr=c&sp=rl&sig=%2BDx9T2o7En%2Bhi0UbtVj%2FDG84IU%2Bltv3eNnrmgkybzYI%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-02c11897-fd1c-4218-b4df-37d36661f6d9f50c82066ae43f68e/3b0fce36-4e0a-4c8f-860b-7fc856b14c9d.zip?sv=2021-08-06&se=2023-02-27T07%3A55%3A02Z&sr=c&sp=rl&sig=E96JC%2F7TFqc78NH0tFuF5hnfDDLwa%2FzgVvNLe31h9Zg%3D>)
### Histogram

#### System.Text.RegularExpressions.Tests.Perf_Regex_Cache.IsMatch_Multithreading(total: 400000, unique: 1, cacheSize: 15)

```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 52.38371396428572 > 43.91111331048077.
IsChangePoint: Marked as a change because one of 1/27/2023 7:12:54 PM, 2/2/2023 2:17:49 AM falls between 1/24/2023 11:54:43 AM and 2/2/2023 2:17:49 AM.
IsRegressionStdDev: Marked as regression because -7.513511692363451 (T) = (0 -58167555.76737351) / Math.Sqrt((24969324819449.668 / (24)) + (49564850370344.016 / (16))) is less than -2.0243941639098457 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (24) + (16) - 2, .025) and -0.356419523829264 = (42883160.22108158 - 58167555.76737351) / 42883160.22108158 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 | [c50c745fa88f0850c8e8ebed37749118929d7e87](https://github.com/dotnet/runtime/commit/c50c745fa88f0850c8e8ebed37749118929d7e87)
Compare | [e07f4527bdedff6278accf9db8a8c7f9f2a48beb](https://github.com/dotnet/runtime/commit/e07f4527bdedff6278accf9db8a8c7f9f2a48beb)
Diff | [Diff](https://github.com/dotnet/runtime/compare/c50c745fa88f0850c8e8ebed37749118929d7e87...e07f4527bdedff6278accf9db8a8c7f9f2a48beb)


### Regressions in System.Collections.CtorFromCollection&lt;String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ImmutableArray - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Collections.CtorFromCollection(String).ImmutableArray(Size%3a%20512).html>) | 388.22 ns | 427.13 ns | 1.10 | 0.08 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_02_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Collections.CtorFromCollection(String)_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_02_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Collections.CtorFromCollection(String).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.CtorFromCollection&lt;String&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-5d68486c-3672-4f81-a2b8-044da88aa5910fe7133f7674af6ac/9afa8667-26dc-44a1-9d02-59a9dc4c1ea2.zip?sv=2021-08-06&se=2023-02-26T15%3A34%3A05Z&sr=c&sp=rl&sig=%2BDx9T2o7En%2Bhi0UbtVj%2FDG84IU%2Bltv3eNnrmgkybzYI%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-02c11897-fd1c-4218-b4df-37d36661f6d9f50c82066ae43f68e/3b0fce36-4e0a-4c8f-860b-7fc856b14c9d.zip?sv=2021-08-06&se=2023-02-27T07%3A55%3A02Z&sr=c&sp=rl&sig=E96JC%2F7TFqc78NH0tFuF5hnfDDLwa%2FzgVvNLe31h9Zg%3D>)
### Histogram

#### System.Collections.CtorFromCollection&lt;String&gt;.ImmutableArray(Size: 512)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 427.1302381530856 > 408.0231409748177.
IsChangePoint: Marked as a change because one of 10/14/2022 9:06:25 AM, 11/21/2022 10:59:14 PM, 12/14/2022 12:26:48 AM, 1/5/2023 10:03:03 PM, 1/21/2023 9:40:41 PM, 1/27/2023 7:12:54 PM, 2/2/2023 2:17:49 AM falls between 1/24/2023 11:54:43 AM and 2/2/2023 2:17:49 AM.
IsRegressionStdDev: Marked as regression because -14.413592522064945 (T) = (0 -421.3813120784167) / Math.Sqrt((82.058613008072 / (24)) + (15.272155129017252 / (16))) is less than -2.0243941639098457 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (24) + (16) - 2, .025) and -0.07704630140098774 = (391.23788042380096 - 421.3813120784167) / 391.23788042380096 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 | [c50c745fa88f0850c8e8ebed37749118929d7e87](https://github.com/dotnet/runtime/commit/c50c745fa88f0850c8e8ebed37749118929d7e87)
Compare | [e07f4527bdedff6278accf9db8a8c7f9f2a48beb](https://github.com/dotnet/runtime/commit/e07f4527bdedff6278accf9db8a8c7f9f2a48beb)
Diff | [Diff](https://github.com/dotnet/runtime/compare/c50c745fa88f0850c8e8ebed37749118929d7e87...e07f4527bdedff6278accf9db8a8c7f9f2a48beb)


### Regressions in System.MathBenchmarks.Single

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Exp2 - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.MathBenchmarks.Single.Exp2.html>) | 50.50 μs | 69.02 μs | 1.37 | 0.20 | False | | |
[Pow - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.MathBenchmarks.Single.Pow.html>) | 51.45 μs | 70.20 μs | 1.36 | 0.16 | False | | |
[Exp - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.MathBenchmarks.Single.Exp.html>) | 30.01 μs | 36.97 μs | 1.23 | 0.20 | False | | |
[ExpM1 - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.MathBenchmarks.Single.ExpM1.html>) | 32.45 μs | 39.58 μs | 1.22 | 0.17 | False | | |
[Exp10M1 - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.MathBenchmarks.Single.Exp10M1.html>) | 58.47 μs | 69.76 μs | 1.19 | 0.24 | False | | |
[Exp2M1 - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.MathBenchmarks.Single.Exp2M1.html>) | 52.65 μs | 69.77 μs | 1.33 | 0.20 | False | | |
[Exp10 - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.MathBenchmarks.Single.Exp10.html>) | 50.70 μs | 68.95 μs | 1.36 | 0.18 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_02_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.MathBenchmarks.Single_1.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_02_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.MathBenchmarks.Single_2.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_02_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.MathBenchmarks.Single_3.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_02_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.MathBenchmarks.Single_4.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_02_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.MathBenchmarks.Single_5.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_02_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.MathBenchmarks.Single_6.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_02_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.MathBenchmarks.Single_7.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_02_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.MathBenchmarks.Single.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.MathBenchmarks.Single*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-5d68486c-3672-4f81-a2b8-044da88aa5910fe7133f7674af6ac/9afa8667-26dc-44a1-9d02-59a9dc4c1ea2.zip?sv=2021-08-06&se=2023-02-26T15%3A34%3A05Z&sr=c&sp=rl&sig=%2BDx9T2o7En%2Bhi0UbtVj%2FDG84IU%2Bltv3eNnrmgkybzYI%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-02c11897-fd1c-4218-b4df-37d36661f6d9f50c82066ae43f68e/3b0fce36-4e0a-4c8f-860b-7fc856b14c9d.zip?sv=2021-08-06&se=2023-02-27T07%3A55%3A02Z&sr=c&sp=rl&sig=E96JC%2F7TFqc78NH0tFuF5hnfDDLwa%2FzgVvNLe31h9Zg%3D>)
### Histogram

#### System.MathBenchmarks.Single.Exp2

```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 69.01845049559472 > 53.05348502326052.
IsChangePoint: Marked as a change because one of 1/27/2023 7:12:54 PM, 2/2/2023 2:17:49 AM falls between 1/24/2023 11:54:43 AM and 2/2/2023 2:17:49 AM.
IsRegressionStdDev: Marked as regression because -34.245477860947055 (T) = (0 -69741.96585675362) / Math.Sqrt((837127.121138001 / (24)) + (4368036.929151213 / (16))) is less than -2.0243941639098457 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (24) + (16) - 2, .025) and -0.3744935333590274 = (50740.119297845056 - 69741.96585675362) / 50740.119297845056 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.MathBenchmarks.Single.Pow

```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 70.19791825485798 > 54.0616930265459.
IsChangePoint: Marked as a change because one of 1/27/2023 7:12:54 PM, 2/2/2023 2:17:49 AM falls between 1/24/2023 11:54:43 AM and 2/2/2023 2:17:49 AM.
IsRegressionStdDev: Marked as regression because -47.28875514768354 (T) = (0 -70505.77769355456) / Math.Sqrt((1022034.7805501956 / (24)) + (1760714.395377746 / (16))) is less than -2.0243941639098457 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (24) + (16) - 2, .025) and -0.35507007642491106 = (52031.09338785662 - 70505.77769355456) / 52031.09338785662 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.MathBenchmarks.Single.Exp

```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 36.97051248522459 > 31.51393453035029.
IsChangePoint: Marked as a change because one of 1/27/2023 7:12:54 PM, 2/2/2023 2:17:49 AM falls between 1/24/2023 11:54:43 AM and 2/2/2023 2:17:49 AM.
IsRegressionStdDev: Marked as regression because -5.6168754184609115 (T) = (0 -40237.68471020789) / Math.Sqrt((8347150.054725872 / (24)) + (41024205.08871314 / (16))) is less than -2.0243941639098457 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (24) + (16) - 2, .025) and -0.3126820269740823 = (30653.032404931637 - 40237.68471020789) / 30653.032404931637 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.MathBenchmarks.Single.ExpM1

```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 39.58192440025252 > 34.0543378092583.
IsChangePoint: Marked as a change because one of 1/27/2023 7:12:54 PM, 2/2/2023 2:17:49 AM falls between 1/24/2023 11:54:43 AM and 2/2/2023 2:17:49 AM.
IsRegressionStdDev: Marked as regression because -8.341714256826993 (T) = (0 -41344.43641041453) / Math.Sqrt((1633576.3321810076 / (24)) + (16106393.203310406 / (16))) is less than -2.0243941639098457 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (24) + (16) - 2, .025) and -0.26448313274624735 = (32696.708512529764 - 41344.43641041453) / 32696.708512529764 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.MathBenchmarks.Single.Exp10M1

```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 69.75811953703706 > 55.29261521359428.
IsChangePoint: Marked as a change because one of 1/27/2023 7:12:54 PM, 2/2/2023 2:17:49 AM falls between 1/24/2023 11:54:43 AM and 2/2/2023 2:17:49 AM.
IsRegressionStdDev: Marked as regression because -33.38901808404263 (T) = (0 -70294.01947976642) / Math.Sqrt((2452201.92971196 / (24)) + (2501915.2900683894 / (16))) is less than -2.0243941639098457 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (24) + (16) - 2, .025) and -0.31842638619186886 = (53316.60547450286 - 70294.01947976642) / 53316.60547450286 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.MathBenchmarks.Single.Exp2M1

```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 69.77374728422619 > 55.27473974431819.
IsChangePoint: Marked as a change because one of 1/27/2023 7:12:54 PM, 2/2/2023 2:17:49 AM falls between 1/24/2023 11:54:43 AM and 2/2/2023 2:17:49 AM.
IsRegressionStdDev: Marked as regression because -27.019015458421595 (T) = (0 -70859.34337773589) / Math.Sqrt((3600744.37885578 / (24)) + (4334937.568735229 / (16))) is less than -2.0243941639098457 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (24) + (16) - 2, .025) and -0.3287225498742918 = (53328.92362249724 - 70859.34337773589) / 53328.92362249724 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.MathBenchmarks.Single.Exp10

```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 68.94804320851689 > 53.21810607312452.
IsChangePoint: Marked as a change because one of 1/27/2023 7:12:54 PM, 2/2/2023 2:17:49 AM falls between 1/24/2023 11:54:43 AM and 2/2/2023 2:17:49 AM.
IsRegressionStdDev: Marked as regression because -30.56350158178773 (T) = (0 -69028.52617952159) / Math.Sqrt((7620123.501661613 / (24)) + (73040.3255655771 / (16))) is less than -2.0243941639098457 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (24) + (16) - 2, .025) and -0.3356043500506718 = (51683.364296397136 - 69028.52617952159) / 51683.364296397136 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 | [c50c745fa88f0850c8e8ebed37749118929d7e87](https://github.com/dotnet/runtime/commit/c50c745fa88f0850c8e8ebed37749118929d7e87)
Compare | [e07f4527bdedff6278accf9db8a8c7f9f2a48beb](https://github.com/dotnet/runtime/commit/e07f4527bdedff6278accf9db8a8c7f9f2a48beb)
Diff | [Diff](https://github.com/dotnet/runtime/compare/c50c745fa88f0850c8e8ebed37749118929d7e87...e07f4527bdedff6278accf9db8a8c7f9f2a48beb)


### Regressions in System.Linq.Tests.Perf_OrderBy

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[OrderByValueType - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Linq.Tests.Perf_OrderBy.OrderByValueType(NumberOfPeople%3a%20512).html>) | 43.90 μs | 50.68 μs | 1.15 | 0.45 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_02_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Linq.Tests.Perf_OrderBy_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_02_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Linq.Tests.Perf_OrderBy.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Linq.Tests.Perf_OrderBy*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-5d68486c-3672-4f81-a2b8-044da88aa5910fe7133f7674af6ac/9afa8667-26dc-44a1-9d02-59a9dc4c1ea2.zip?sv=2021-08-06&se=2023-02-26T15%3A34%3A05Z&sr=c&sp=rl&sig=%2BDx9T2o7En%2Bhi0UbtVj%2FDG84IU%2Bltv3eNnrmgkybzYI%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-02c11897-fd1c-4218-b4df-37d36661f6d9f50c82066ae43f68e/3b0fce36-4e0a-4c8f-860b-7fc856b14c9d.zip?sv=2021-08-06&se=2023-02-27T07%3A55%3A02Z&sr=c&sp=rl&sig=E96JC%2F7TFqc78NH0tFuF5hnfDDLwa%2FzgVvNLe31h9Zg%3D>)
### Histogram

#### System.Linq.Tests.Perf_OrderBy.OrderByValueType(NumberOfPeople: 512)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 50.67796747870075 > 46.19685214061421.
IsChangePoint: Marked as a change because one of 12/1/2022 7:29:59 PM, 1/5/2023 10:03:03 PM, 1/27/2023 7:12:54 PM, 2/2/2023 2:17:49 AM falls between 1/24/2023 11:54:43 AM and 2/2/2023 2:17:49 AM.
IsRegressionStdDev: Marked as regression because -7.135680451957544 (T) = (0 -50690.210505066556) / Math.Sqrt((2833638.52332989 / (24)) + (13500456.952154541 / (16))) is less than -2.0243941639098457 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (24) + (16) - 2, .025) and -0.16017201680390003 = (43691.97823328862 - 50690.210505066556) / 43691.97823328862 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 | [c50c745fa88f0850c8e8ebed37749118929d7e87](https://github.com/dotnet/runtime/commit/c50c745fa88f0850c8e8ebed37749118929d7e87)
Compare | [e07f4527bdedff6278accf9db8a8c7f9f2a48beb](https://github.com/dotnet/runtime/commit/e07f4527bdedff6278accf9db8a8c7f9f2a48beb)
Diff | [Diff](https://github.com/dotnet/runtime/compare/c50c745fa88f0850c8e8ebed37749118929d7e87...e07f4527bdedff6278accf9db8a8c7f9f2a48beb)


### Regressions in System.Buffers.Tests.RentReturnArrayPoolTests&lt;Byte&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[SingleParallel - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Buffers.Tests.RentReturnArrayPoolTests(Byte).SingleParallel(RentalSize%3a%204096%2c%20ManipulateArray%3a%20False%2c%20Async%3a%20True%2c%20UseSharedPool%3a%20False).html>) | 55.07 μs | 71.53 μs | 1.30 | 0.35 | False | | |
[SingleParallel - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Buffers.Tests.RentReturnArrayPoolTests(Byte).SingleParallel(RentalSize%3a%204096%2c%20ManipulateArray%3a%20True%2c%20Async%3a%20False%2c%20UseSharedPool%3a%20False).html>) | 67.01 μs | 83.28 μs | 1.24 | 0.31 | False | | |
[SingleParallel - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Buffers.Tests.RentReturnArrayPoolTests(Byte).SingleParallel(RentalSize%3a%204096%2c%20ManipulateArray%3a%20True%2c%20Async%3a%20True%2c%20UseSharedPool%3a%20False).html>) | 57.63 μs | 76.16 μs | 1.32 | 0.28 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_02_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Buffers.Tests.RentReturnArrayPoolTests(Byte)_1.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_02_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Buffers.Tests.RentReturnArrayPoolTests(Byte)_2.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_02_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Buffers.Tests.RentReturnArrayPoolTests(Byte)_3.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_02_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Buffers.Tests.RentReturnArrayPoolTests(Byte).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Buffers.Tests.RentReturnArrayPoolTests&lt;Byte&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-5d68486c-3672-4f81-a2b8-044da88aa5910fe7133f7674af6ac/9afa8667-26dc-44a1-9d02-59a9dc4c1ea2.zip?sv=2021-08-06&se=2023-02-26T15%3A34%3A05Z&sr=c&sp=rl&sig=%2BDx9T2o7En%2Bhi0UbtVj%2FDG84IU%2Bltv3eNnrmgkybzYI%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-02c11897-fd1c-4218-b4df-37d36661f6d9f50c82066ae43f68e/3b0fce36-4e0a-4c8f-860b-7fc856b14c9d.zip?sv=2021-08-06&se=2023-02-27T07%3A55%3A02Z&sr=c&sp=rl&sig=E96JC%2F7TFqc78NH0tFuF5hnfDDLwa%2FzgVvNLe31h9Zg%3D>)
### Histogram

#### System.Buffers.Tests.RentReturnArrayPoolTests&lt;Byte&gt;.SingleParallel(RentalSize: 4096, ManipulateArray: False, Async: True, UseSharedPool: False)

```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 71.53111953722221 > 62.327370546699996.
IsChangePoint: Marked as a change because one of 10/27/2022 12:34:03 AM, 1/27/2023 7:12:54 PM, 2/2/2023 2:17:49 AM falls between 1/24/2023 11:54:43 AM and 2/2/2023 2:17:49 AM.
IsRegressionStdDev: Marked as regression because -9.934707576395398 (T) = (0 -66740.98591333599) / Math.Sqrt((6672800.292791727 / (24)) + (4880891.868175631 / (16))) is less than -2.0243941639098457 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (24) + (16) - 2, .025) and -0.12824263552769538 = (59154.816359266784 - 66740.98591333599) / 59154.816359266784 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.Buffers.Tests.RentReturnArrayPoolTests&lt;Byte&gt;.SingleParallel(RentalSize: 4096, ManipulateArray: True, Async: False, UseSharedPool: False)

```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 83.27730550266666 > 68.40260402082059.
IsChangePoint: Marked as a change because one of 10/26/2022 4:56:52 PM, 1/27/2023 7:12:54 PM, 2/2/2023 2:17:49 AM falls between 1/24/2023 11:54:43 AM and 2/2/2023 2:17:49 AM.
IsRegressionStdDev: Marked as regression because -31.694639522864268 (T) = (0 -83175.24421248147) / Math.Sqrt((6679767.415053553 / (24)) + (651460.5285907873 / (15))) is less than -2.026192463026769 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (24) + (15) - 2, .025) and -0.2757532381393107 = (65196.96891680461 - 83175.24421248147) / 65196.96891680461 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.Buffers.Tests.RentReturnArrayPoolTests&lt;Byte&gt;.SingleParallel(RentalSize: 4096, ManipulateArray: True, Async: True, UseSharedPool: False)

```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 76.15692898133334 > 62.118965069350004.
IsChangePoint: Marked as a change because one of 10/26/2022 10:09:37 PM, 1/27/2023 7:12:54 PM, 2/2/2023 2:17:49 AM falls between 1/24/2023 11:54:43 AM and 2/2/2023 2:17:49 AM.
IsRegressionStdDev: Marked as regression because -21.728974389110206 (T) = (0 -74143.22368359951) / Math.Sqrt((3875769.4388656598 / (24)) + (4132585.9298055647 / (15))) is less than -2.026192463026769 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (24) + (15) - 2, .025) and -0.2402859508107063 = (59779.13692817063 - 74143.22368359951) / 59779.13692817063 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 | [c50c745fa88f0850c8e8ebed37749118929d7e87](https://github.com/dotnet/runtime/commit/c50c745fa88f0850c8e8ebed37749118929d7e87)
Compare | [e07f4527bdedff6278accf9db8a8c7f9f2a48beb](https://github.com/dotnet/runtime/commit/e07f4527bdedff6278accf9db8a8c7f9f2a48beb)
Diff | [Diff](https://github.com/dotnet/runtime/compare/c50c745fa88f0850c8e8ebed37749118929d7e87...e07f4527bdedff6278accf9db8a8c7f9f2a48beb)


### Regressions in System.Collections.CreateAddAndClear&lt;Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ConcurrentQueue - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Collections.CreateAddAndClear(Int32).ConcurrentQueue(Size%3a%20512).html>) | 7.89 μs | 8.68 μs | 1.10 | 0.00 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_02_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Collections.CreateAddAndClear(Int32)_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_02_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Collections.CreateAddAndClear(Int32).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.CreateAddAndClear&lt;Int32&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-5d68486c-3672-4f81-a2b8-044da88aa5910fe7133f7674af6ac/9afa8667-26dc-44a1-9d02-59a9dc4c1ea2.zip?sv=2021-08-06&se=2023-02-26T15%3A34%3A05Z&sr=c&sp=rl&sig=%2BDx9T2o7En%2Bhi0UbtVj%2FDG84IU%2Bltv3eNnrmgkybzYI%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-02c11897-fd1c-4218-b4df-37d36661f6d9f50c82066ae43f68e/3b0fce36-4e0a-4c8f-860b-7fc856b14c9d.zip?sv=2021-08-06&se=2023-02-27T07%3A55%3A02Z&sr=c&sp=rl&sig=E96JC%2F7TFqc78NH0tFuF5hnfDDLwa%2FzgVvNLe31h9Zg%3D>)
### Histogram

#### System.Collections.CreateAddAndClear&lt;Int32&gt;.ConcurrentQueue(Size: 512)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 8.683263982126823 > 8.275400607283967.
IsChangePoint: Marked as a change because one of 1/27/2023 7:12:54 PM, 2/2/2023 2:17:49 AM falls between 1/24/2023 11:54:43 AM and 2/2/2023 2:17:49 AM.
IsRegressionStdDev: Marked as regression because -69.55931491590971 (T) = (0 -8663.537660373604) / Math.Sqrt((954.6137982490305 / (24)) + (1563.086420817273 / (16))) is less than -2.0243941639098457 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (24) + (16) - 2, .025) and -0.10392001356575693 = (7847.975898534197 - 8663.537660373604) / 7847.975898534197 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 | [c50c745fa88f0850c8e8ebed37749118929d7e87](https://github.com/dotnet/runtime/commit/c50c745fa88f0850c8e8ebed37749118929d7e87)
Compare | [e07f4527bdedff6278accf9db8a8c7f9f2a48beb](https://github.com/dotnet/runtime/commit/e07f4527bdedff6278accf9db8a8c7f9f2a48beb)
Diff | [Diff](https://github.com/dotnet/runtime/compare/c50c745fa88f0850c8e8ebed37749118929d7e87...e07f4527bdedff6278accf9db8a8c7f9f2a48beb)


### Regressions in System.Buffers.Text.Tests.Base64Tests

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Base64Decode - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Buffers.Text.Tests.Base64Tests.Base64Decode(NumberOfBytes%3a%201000).html>) | 332.43 ns | 352.08 ns | 1.06 | 0.16 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_02_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Buffers.Text.Tests.Base64Tests_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_02_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Buffers.Text.Tests.Base64Tests.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Buffers.Text.Tests.Base64Tests*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-5d68486c-3672-4f81-a2b8-044da88aa5910fe7133f7674af6ac/9afa8667-26dc-44a1-9d02-59a9dc4c1ea2.zip?sv=2021-08-06&se=2023-02-26T15%3A34%3A05Z&sr=c&sp=rl&sig=%2BDx9T2o7En%2Bhi0UbtVj%2FDG84IU%2Bltv3eNnrmgkybzYI%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-02c11897-fd1c-4218-b4df-37d36661f6d9f50c82066ae43f68e/3b0fce36-4e0a-4c8f-860b-7fc856b14c9d.zip?sv=2021-08-06&se=2023-02-27T07%3A55%3A02Z&sr=c&sp=rl&sig=E96JC%2F7TFqc78NH0tFuF5hnfDDLwa%2FzgVvNLe31h9Zg%3D>)
### Histogram

#### System.Buffers.Text.Tests.Base64Tests.Base64Decode(NumberOfBytes: 1000)

```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 352.08118756989154 > 348.6693292218774.
IsChangePoint: Marked as a change because one of 10/26/2022 2:40:44 AM, 12/14/2022 12:26:48 AM, 1/5/2023 10:03:03 PM, 1/21/2023 9:40:41 PM, 1/27/2023 7:12:54 PM, 2/2/2023 2:17:49 AM falls between 1/24/2023 11:54:43 AM and 2/2/2023 2:17:49 AM.
IsRegressionStdDev: Marked as regression because -21.606153075615218 (T) = (0 -351.89829338836716) / Math.Sqrt((14.429385268369273 / (24)) + (2.6282020847723397 / (16))) is less than -2.0243941639098457 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (24) + (16) - 2, .025) and -0.056768726951027366 = (332.99461311999517 - 351.89829338836716) / 332.99461311999517 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	c50c745fa88f0850c8e8ebed37749118929d7e87
Compare	e07f4527bdedff6278accf9db8a8c7f9f2a48beb
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
Exp2 - Duration of single invocation	50.50 μs	69.02 μs	1.37	0.20	False
Pow - Duration of single invocation	51.45 μs	70.20 μs	1.36	0.16	False
Exp - Duration of single invocation	30.01 μs	36.97 μs	1.23	0.20	False
ExpM1 - Duration of single invocation	32.45 μs	39.58 μs	1.22	0.17	False
Exp10M1 - Duration of single invocation	58.47 μs	69.76 μs	1.19	0.24	False
Exp2M1 - Duration of single invocation	52.65 μs	69.77 μs	1.33	0.20	False
Exp10 - Duration of single invocation	50.70 μs	68.95 μs	1.36	0.18	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
SingleParallel - Duration of single invocation	55.07 μs	71.53 μs	1.30	0.35	False
SingleParallel - Duration of single invocation	67.01 μs	83.28 μs	1.24	0.31	False
SingleParallel - Duration of single invocation	57.63 μs	76.16 μs	1.32	0.28	False

[Perf] Linux/arm64: 29 Regressions on 1/27/2023 11:43:56 PM #81549

Description

Run Information

Regressions in System.Collections.CreateAddAndClear<String>

Repro

Payloads

Histogram

System.Collections.CreateAddAndClear<String>.ConcurrentQueue(Size: 512)

Description of detection logic

Docs

Regressions in System.Text.RegularExpressions.Tests.Perf_Regex_Cache

Repro

Payloads

Histogram

System.Text.RegularExpressions.Tests.Perf_Regex_Cache.IsMatch_Multithreading(total: 400000, unique: 1, cacheSize: 15)

Description of detection logic

Docs

Run Information

Regressions in System.Collections.CtorFromCollection<String>

Repro

Payloads

Histogram

System.Collections.CtorFromCollection<String>.ImmutableArray(Size: 512)

Description of detection logic

Docs

Run Information

Regressions in System.MathBenchmarks.Single

Repro

Payloads

Histogram

System.MathBenchmarks.Single.Exp2

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Run Information

Regressions in System.Linq.Tests.Perf_OrderBy

Repro

Payloads

Histogram

System.Linq.Tests.Perf_OrderBy.OrderByValueType(NumberOfPeople: 512)

Description of detection logic

Docs

Run Information

Regressions in System.Buffers.Tests.RentReturnArrayPoolTests<Byte>

Repro

Payloads

Histogram

System.Buffers.Tests.RentReturnArrayPoolTests<Byte>.SingleParallel(RentalSize: 4096, ManipulateArray: False, Async: True, UseSharedPool: False)

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Run Information

Regressions in System.Collections.CreateAddAndClear<Int32>

Repro

Payloads

Histogram

System.Collections.CreateAddAndClear<Int32>.ConcurrentQueue(Size: 512)

Description of detection logic

Docs

Run Information

Regressions in System.Buffers.Text.Tests.Base64Tests

Repro

Payloads

Histogram

System.Buffers.Text.Tests.Base64Tests.Base64Decode(NumberOfBytes: 1000)

Description of detection logic

Docs

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone