[Perf] Changes at 6/22/2022 11:10:17 PM

### Run Information

Architecture | arm64
-- | --
OS | ubuntu 18.04
Baseline | [4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4](https://github.com/dotnet/runtime/commit/4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4)
Compare | [70df1f53ef459154c1bcc109848980fd79be5c63](https://github.com/dotnet/runtime/commit/70df1f53ef459154c1bcc109848980fd79be5c63)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4...70df1f53ef459154c1bcc109848980fd79be5c63)


### Regressions in System.Memory.Memory&lt;Byte&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ToArray - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 18.04/System.Memory.Memory(Byte).ToArray(Size%3a%20512).html>) | 74.44 ns | 82.44 ns | 1.11 | 0.11 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/06_30_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Memory.Memory(Byte)_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/06_30_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Memory.Memory(Byte).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Memory.Memory&lt;Byte&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-8927493c-9a5a-4b43-a91a-e01664f4dabd900b390b5a7470d96/16262c34-6840-43b9-a71b-c8fef137cb0d.zip?sv=2019-07-07&se=2022-07-22T14%3A12%3A09Z&sr=c&sp=rl&sig=%2FI8VfRDMKbUQM6QhkWU4RazehykkuBaCaNMp5%2Fb2QN4%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-50f7cfb6-f3c4-489b-b8c9-310bfda615e1c66eb7265f44fb88d/18136649-2d56-4b87-baea-7b0f97bab0be.zip?sv=2021-06-08&se=2022-07-23T04%3A55%3A04Z&sr=c&sp=rl&sig=DkQCURaCtJa5kW781Tt6uDZ9b2zC%2F1df44cCaRQ%2FAZ0%3D>)
### Histogram

#### System.Memory.Memory&lt;Byte&gt;.ToArray(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 82.43722959297247 > 77.39994908074306.
IsChangePoint: Marked as a change because one of 6/22/2022 5:33:38 PM, 6/30/2022 12:21:07 PM falls between 6/21/2022 9:29:01 PM and 6/30/2022 12:21:07 PM.
IsRegressionStdDev: Marked as regression because -13.710410651273262 (T) = (0 -81.99021584105184) / Math.Sqrt((2.460361386899337 / (16)) + (6.491495285390088 / (28))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (28) - 2, .025) and -0.11587182546430068 = (73.47637423046926 - 81.99021584105184) / 73.47637423046926 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 18.04
Baseline | [4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4](https://github.com/dotnet/runtime/commit/4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4)
Compare | [70df1f53ef459154c1bcc109848980fd79be5c63](https://github.com/dotnet/runtime/commit/70df1f53ef459154c1bcc109848980fd79be5c63)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4...70df1f53ef459154c1bcc109848980fd79be5c63)


### Regressions in System.Tests.Perf_String

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Concat_str_str_str_str - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 18.04/System.Tests.Perf_String.Concat_str_str_str_str(size%3a%201000).html>) | 717.62 ns | 836.87 ns | 1.17 | 0.34 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/06_30_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Tests.Perf_String_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/06_30_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Tests.Perf_String.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_String*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-8927493c-9a5a-4b43-a91a-e01664f4dabd900b390b5a7470d96/16262c34-6840-43b9-a71b-c8fef137cb0d.zip?sv=2019-07-07&se=2022-07-22T14%3A12%3A09Z&sr=c&sp=rl&sig=%2FI8VfRDMKbUQM6QhkWU4RazehykkuBaCaNMp5%2Fb2QN4%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-50f7cfb6-f3c4-489b-b8c9-310bfda615e1c66eb7265f44fb88d/18136649-2d56-4b87-baea-7b0f97bab0be.zip?sv=2021-06-08&se=2022-07-23T04%3A55%3A04Z&sr=c&sp=rl&sig=DkQCURaCtJa5kW781Tt6uDZ9b2zC%2F1df44cCaRQ%2FAZ0%3D>)
### Histogram

#### System.Tests.Perf_String.Concat_str_str_str_str(size: 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 836.8681663486269 > 747.9247883806596.
IsChangePoint: Marked as a change because one of 4/18/2022 10:15:32 PM, 6/22/2022 5:33:38 PM, 6/30/2022 12:21:07 PM falls between 6/21/2022 9:29:01 PM and 6/30/2022 12:21:07 PM.
IsRegressionStdDev: Marked as regression because -7.594028285541871 (T) = (0 -837.982605012931) / Math.Sqrt((2852.291757748377 / (16)) + (125.73609160926361 / (28))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (28) - 2, .025) and -0.13961589516239464 = (735.320214969026 - 837.982605012931) / 735.320214969026 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 18.04
Baseline | [4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4](https://github.com/dotnet/runtime/commit/4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4)
Compare | [70df1f53ef459154c1bcc109848980fd79be5c63](https://github.com/dotnet/runtime/commit/70df1f53ef459154c1bcc109848980fd79be5c63)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4...70df1f53ef459154c1bcc109848980fd79be5c63)


### Regressions in System.Text.Json.Serialization.Tests.ColdStartSerialization&lt;SimpleStructWithProperties&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[NewCustomConverter - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 18.04/System.Text.Json.Serialization.Tests.ColdStartSerialization(SimpleStructWithProperties).NewCustomConverter.html>) | 89.86 μs | 102.99 μs | 1.15 | 0.50 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/06_30_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Text.Json.Serialization.Tests.ColdStartSerialization(SimpleStructWithProperties)_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/06_30_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Text.Json.Serialization.Tests.ColdStartSerialization(SimpleStructWithProperties).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Text.Json.Serialization.Tests.ColdStartSerialization&lt;SimpleStructWithProperties&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-8927493c-9a5a-4b43-a91a-e01664f4dabd900b390b5a7470d96/16262c34-6840-43b9-a71b-c8fef137cb0d.zip?sv=2019-07-07&se=2022-07-22T14%3A12%3A09Z&sr=c&sp=rl&sig=%2FI8VfRDMKbUQM6QhkWU4RazehykkuBaCaNMp5%2Fb2QN4%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-50f7cfb6-f3c4-489b-b8c9-310bfda615e1c66eb7265f44fb88d/18136649-2d56-4b87-baea-7b0f97bab0be.zip?sv=2021-06-08&se=2022-07-23T04%3A55%3A04Z&sr=c&sp=rl&sig=DkQCURaCtJa5kW781Tt6uDZ9b2zC%2F1df44cCaRQ%2FAZ0%3D>)
### Histogram

#### System.Text.Json.Serialization.Tests.ColdStartSerialization&lt;SimpleStructWithProperties&gt;.NewCustomConverter

```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 102.99005833760246 > 85.88420548835127.
IsChangePoint: Marked as a change because one of 4/7/2022 4:53:41 AM, 6/22/2022 5:33:38 PM, 6/30/2022 12:21:07 PM falls between 6/21/2022 9:29:01 PM and 6/30/2022 12:21:07 PM.
IsRegressionStdDev: Marked as regression because -11.414583815851154 (T) = (0 -104594.36995079365) / Math.Sqrt((31934278.541254736 / (16)) + (26763480.4770399 / (28))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (28) - 2, .025) and -0.23076196454699752 = (84983.42731065089 - 104594.36995079365) / 84983.42731065089 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 18.04
Baseline | [4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4](https://github.com/dotnet/runtime/commit/4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4)
Compare | [70df1f53ef459154c1bcc109848980fd79be5c63](https://github.com/dotnet/runtime/commit/70df1f53ef459154c1bcc109848980fd79be5c63)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4...70df1f53ef459154c1bcc109848980fd79be5c63)


### Regressions in BenchmarksGame.BinaryTrees_6

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[RunBench - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 18.04/BenchmarksGame.BinaryTrees_6.RunBench.html>) | 761.70 ms | 1.16 secs | 1.53 | 0.44 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/06_30_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/BenchmarksGame.BinaryTrees_6_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/06_30_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/BenchmarksGame.BinaryTrees_6.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'BenchmarksGame.BinaryTrees_6*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-8927493c-9a5a-4b43-a91a-e01664f4dabd900b390b5a7470d96/16262c34-6840-43b9-a71b-c8fef137cb0d.zip?sv=2019-07-07&se=2022-07-22T14%3A12%3A09Z&sr=c&sp=rl&sig=%2FI8VfRDMKbUQM6QhkWU4RazehykkuBaCaNMp5%2Fb2QN4%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-50f7cfb6-f3c4-489b-b8c9-310bfda615e1c66eb7265f44fb88d/18136649-2d56-4b87-baea-7b0f97bab0be.zip?sv=2021-06-08&se=2022-07-23T04%3A55%3A04Z&sr=c&sp=rl&sig=DkQCURaCtJa5kW781Tt6uDZ9b2zC%2F1df44cCaRQ%2FAZ0%3D>)
### Histogram

#### BenchmarksGame.BinaryTrees_6.RunBench

```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 1.1622101224 > 798.9242141795456.
IsChangePoint: Marked as a change because one of 6/22/2022 5:33:38 PM, 6/30/2022 12:21:07 PM falls between 6/21/2022 9:29:01 PM and 6/30/2022 12:21:07 PM.
IsRegressionStdDev: Marked as regression because -10.876910312422696 (T) = (0 -1364471273.9786816) / Math.Sqrt((28539981806721480 / (16)) + (6973624979242626 / (28))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (28) - 2, .025) and -0.5610589950517054 = (874067718.3269986 - 1364471273.9786816) / 874067718.3269986 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 18.04
Baseline | [4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4](https://github.com/dotnet/runtime/commit/4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4)
Compare | [70df1f53ef459154c1bcc109848980fd79be5c63](https://github.com/dotnet/runtime/commit/70df1f53ef459154c1bcc109848980fd79be5c63)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4...70df1f53ef459154c1bcc109848980fd79be5c63)


### Regressions in System.Memory.ReadOnlyMemory&lt;Char&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ToArray - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 18.04/System.Memory.ReadOnlyMemory(Char).ToArray(Size%3a%20512).html>) | 120.70 ns | 130.45 ns | 1.08 | 0.23 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/06_30_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Memory.ReadOnlyMemory(Char)_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/06_30_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Memory.ReadOnlyMemory(Char).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Memory.ReadOnlyMemory&lt;Char&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-8927493c-9a5a-4b43-a91a-e01664f4dabd900b390b5a7470d96/16262c34-6840-43b9-a71b-c8fef137cb0d.zip?sv=2019-07-07&se=2022-07-22T14%3A12%3A09Z&sr=c&sp=rl&sig=%2FI8VfRDMKbUQM6QhkWU4RazehykkuBaCaNMp5%2Fb2QN4%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-50f7cfb6-f3c4-489b-b8c9-310bfda615e1c66eb7265f44fb88d/18136649-2d56-4b87-baea-7b0f97bab0be.zip?sv=2021-06-08&se=2022-07-23T04%3A55%3A04Z&sr=c&sp=rl&sig=DkQCURaCtJa5kW781Tt6uDZ9b2zC%2F1df44cCaRQ%2FAZ0%3D>)
### Histogram

#### System.Memory.ReadOnlyMemory&lt;Char&gt;.ToArray(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 130.44937828142446 > 125.41419063190034.
IsChangePoint: Marked as a change because one of 6/22/2022 5:33:38 PM, 6/30/2022 12:21:07 PM falls between 6/21/2022 9:29:01 PM and 6/30/2022 12:21:07 PM.
IsRegressionStdDev: Marked as regression because -14.633860880070905 (T) = (0 -134.06431055845164) / Math.Sqrt((10.228921558730486 / (16)) + (8.763426393505666 / (28))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (28) - 2, .025) and -0.11921878359452584 = (119.78382825910549 - 134.06431055845164) / 119.78382825910549 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 18.04
Baseline | [4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4](https://github.com/dotnet/runtime/commit/4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4)
Compare | [70df1f53ef459154c1bcc109848980fd79be5c63](https://github.com/dotnet/runtime/commit/70df1f53ef459154c1bcc109848980fd79be5c63)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4...70df1f53ef459154c1bcc109848980fd79be5c63)


### Regressions in BenchmarksGame.BinaryTrees_5

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[RunBench - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 18.04/BenchmarksGame.BinaryTrees_5.RunBench.html>) | 153.55 ms | 370.26 ms | 2.41 | 0.47 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/06_30_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/BenchmarksGame.BinaryTrees_5_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/06_30_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/BenchmarksGame.BinaryTrees_5.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'BenchmarksGame.BinaryTrees_5*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-8927493c-9a5a-4b43-a91a-e01664f4dabd900b390b5a7470d96/16262c34-6840-43b9-a71b-c8fef137cb0d.zip?sv=2019-07-07&se=2022-07-22T14%3A12%3A09Z&sr=c&sp=rl&sig=%2FI8VfRDMKbUQM6QhkWU4RazehykkuBaCaNMp5%2Fb2QN4%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-50f7cfb6-f3c4-489b-b8c9-310bfda615e1c66eb7265f44fb88d/18136649-2d56-4b87-baea-7b0f97bab0be.zip?sv=2021-06-08&se=2022-07-23T04%3A55%3A04Z&sr=c&sp=rl&sig=DkQCURaCtJa5kW781Tt6uDZ9b2zC%2F1df44cCaRQ%2FAZ0%3D>)
### Histogram

#### BenchmarksGame.BinaryTrees_5.RunBench

```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 370.2576523243243 > 161.05767272000003.
IsChangePoint: Marked as a change because one of 6/22/2022 5:33:38 PM, 6/30/2022 12:21:07 PM falls between 6/21/2022 9:29:01 PM and 6/30/2022 12:21:07 PM.
IsRegressionStdDev: Marked as regression because -12.904466683347238 (T) = (0 -335785748.08204633) / Math.Sqrt((441286071794986.8 / (16)) + (4245015067616788.5 / (28))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (28) - 2, .025) and -1.0594656900441946 = (163045079.94733363 - 335785748.08204633) / 163045079.94733363 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 18.04
Baseline | [4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4](https://github.com/dotnet/runtime/commit/4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4)
Compare | [70df1f53ef459154c1bcc109848980fd79be5c63](https://github.com/dotnet/runtime/commit/70df1f53ef459154c1bcc109848980fd79be5c63)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4...70df1f53ef459154c1bcc109848980fd79be5c63)


### Regressions in System.Collections.CtorGivenSizeNonGeneric

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ArrayList - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 18.04/System.Collections.CtorGivenSizeNonGeneric.ArrayList(Size%3a%20512).html>) | 285.13 ns | 306.64 ns | 1.08 | 0.39 | False | | |
[Stack - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 18.04/System.Collections.CtorGivenSizeNonGeneric.Stack(Size%3a%20512).html>) | 282.75 ns | 306.25 ns | 1.08 | 0.30 | False | | |
[SortedList - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 18.04/System.Collections.CtorGivenSizeNonGeneric.SortedList(Size%3a%20512).html>) | 671.48 ns | 810.31 ns | 1.21 | 0.19 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/06_30_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Collections.CtorGivenSizeNonGeneric_1.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/06_30_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Collections.CtorGivenSizeNonGeneric_2.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/06_30_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Collections.CtorGivenSizeNonGeneric_3.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/06_30_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Collections.CtorGivenSizeNonGeneric.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.CtorGivenSizeNonGeneric*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-8927493c-9a5a-4b43-a91a-e01664f4dabd900b390b5a7470d96/16262c34-6840-43b9-a71b-c8fef137cb0d.zip?sv=2019-07-07&se=2022-07-22T14%3A12%3A09Z&sr=c&sp=rl&sig=%2FI8VfRDMKbUQM6QhkWU4RazehykkuBaCaNMp5%2Fb2QN4%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-50f7cfb6-f3c4-489b-b8c9-310bfda615e1c66eb7265f44fb88d/18136649-2d56-4b87-baea-7b0f97bab0be.zip?sv=2021-06-08&se=2022-07-23T04%3A55%3A04Z&sr=c&sp=rl&sig=DkQCURaCtJa5kW781Tt6uDZ9b2zC%2F1df44cCaRQ%2FAZ0%3D>)
### Histogram

#### System.Collections.CtorGivenSizeNonGeneric.ArrayList(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 306.6352010953469 > 297.5107613665975.
IsChangePoint: Marked as a change because one of 6/22/2022 5:33:38 PM, 6/30/2022 12:21:07 PM falls between 6/21/2022 9:29:01 PM and 6/30/2022 12:21:07 PM.
IsRegressionStdDev: Marked as regression because -8.750497935412715 (T) = (0 -342.8258754411325) / Math.Sqrt((114.00607955884429 / (16)) + (690.0122285631011 / (28))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (28) - 2, .025) and -0.16804169875847103 = (293.50482590264306 - 342.8258754411325) / 293.50482590264306 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.Collections.CtorGivenSizeNonGeneric.Stack(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 306.24745358652814 > 299.4782273219399.
IsChangePoint: Marked as a change because one of 6/22/2022 5:33:38 PM, 6/30/2022 12:21:07 PM falls between 6/21/2022 9:29:01 PM and 6/30/2022 12:21:07 PM.
IsRegressionStdDev: Marked as regression because -9.80552496628178 (T) = (0 -348.4805063120999) / Math.Sqrt((132.32065914980302 / (16)) + (624.1918897975522 / (28))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (28) - 2, .025) and -0.1842115534961126 = (294.2721723017237 - 348.4805063120999) / 294.2721723017237 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.Collections.CtorGivenSizeNonGeneric.SortedList(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 810.3057626058447 > 702.4549000643726.
IsChangePoint: Marked as a change because one of 6/23/2022 3:07:42 AM, 6/30/2022 12:21:07 PM falls between 6/21/2022 9:29:01 PM and 6/30/2022 12:21:07 PM.
IsRegressionStdDev: Marked as regression because -12.139139352740484 (T) = (0 -800.9754909431439) / Math.Sqrt((308.0581268683371 / (18)) + (2611.2749365414684 / (26))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (18) + (26) - 2, .025) and -0.1966226232555868 = (669.3634863462408 - 800.9754909431439) / 669.3634863462408 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 18.04
Baseline | [4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4](https://github.com/dotnet/runtime/commit/4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4)
Compare | [70df1f53ef459154c1bcc109848980fd79be5c63](https://github.com/dotnet/runtime/commit/70df1f53ef459154c1bcc109848980fd79be5c63)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4...70df1f53ef459154c1bcc109848980fd79be5c63)


### 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
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Stack - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 18.04/System.Collections.CtorFromCollection(String).Stack(Size%3a%20512).html>) | 530.31 ns | 611.71 ns | 1.15 | 0.48 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/06_30_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Collections.CtorFromCollection(String)_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/06_30_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Collections.CtorFromCollection(String).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.CtorFromCollection&lt;String&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-8927493c-9a5a-4b43-a91a-e01664f4dabd900b390b5a7470d96/16262c34-6840-43b9-a71b-c8fef137cb0d.zip?sv=2019-07-07&se=2022-07-22T14%3A12%3A09Z&sr=c&sp=rl&sig=%2FI8VfRDMKbUQM6QhkWU4RazehykkuBaCaNMp5%2Fb2QN4%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-50f7cfb6-f3c4-489b-b8c9-310bfda615e1c66eb7265f44fb88d/18136649-2d56-4b87-baea-7b0f97bab0be.zip?sv=2021-06-08&se=2022-07-23T04%3A55%3A04Z&sr=c&sp=rl&sig=DkQCURaCtJa5kW781Tt6uDZ9b2zC%2F1df44cCaRQ%2FAZ0%3D>)
### Histogram

#### System.Collections.CtorFromCollection&lt;String&gt;.Stack(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 611.7076486049052 > 560.2619477579672.
IsChangePoint: Marked as a change because one of 6/22/2022 5:33:38 PM, 6/30/2022 12:21:07 PM falls between 6/21/2022 9:29:01 PM and 6/30/2022 12:21:07 PM.
IsRegressionStdDev: Marked as regression because -4.300523119847739 (T) = (0 -604.6098906339646) / Math.Sqrt((2000.1081226323063 / (16)) + (151.34152392440222 / (28))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (28) - 2, .025) and -0.08840903327718057 = (555.4987804662874 - 604.6098906339646) / 555.4987804662874 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 18.04
Baseline | [4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4](https://github.com/dotnet/runtime/commit/4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4)
Compare | [70df1f53ef459154c1bcc109848980fd79be5c63](https://github.com/dotnet/runtime/commit/70df1f53ef459154c1bcc109848980fd79be5c63)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4...70df1f53ef459154c1bcc109848980fd79be5c63)


### Regressions in System.Memory.Span&lt;Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[LastIndexOfValue - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 18.04/System.Memory.Span(Int32).LastIndexOfValue(Size%3a%20512).html>) | 119.15 ns | 142.03 ns | 1.19 | 0.43 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/06_30_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Memory.Span(Int32)_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/06_30_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Memory.Span(Int32).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Memory.Span&lt;Int32&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-8927493c-9a5a-4b43-a91a-e01664f4dabd900b390b5a7470d96/16262c34-6840-43b9-a71b-c8fef137cb0d.zip?sv=2019-07-07&se=2022-07-22T14%3A12%3A09Z&sr=c&sp=rl&sig=%2FI8VfRDMKbUQM6QhkWU4RazehykkuBaCaNMp5%2Fb2QN4%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-50f7cfb6-f3c4-489b-b8c9-310bfda615e1c66eb7265f44fb88d/18136649-2d56-4b87-baea-7b0f97bab0be.zip?sv=2021-06-08&se=2022-07-23T04%3A55%3A04Z&sr=c&sp=rl&sig=DkQCURaCtJa5kW781Tt6uDZ9b2zC%2F1df44cCaRQ%2FAZ0%3D>)
### Histogram

#### System.Memory.Span&lt;Int32&gt;.LastIndexOfValue(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 142.03415944842692 > 125.22311184805353.
IsChangePoint: Marked as a change because one of 6/9/2022 7:18:42 PM, 6/22/2022 5:33:38 PM, 6/30/2022 12:21:07 PM falls between 6/21/2022 9:29:01 PM and 6/30/2022 12:21:07 PM.
IsRegressionStdDev: Marked as regression because -4.859706728235917 (T) = (0 -139.23766921759707) / Math.Sqrt((107.24935175268618 / (16)) + (4.008882807240383 / (28))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (28) - 2, .025) and -0.10050100851200483 = (126.52207325630833 - 139.23766921759707) / 126.52207325630833 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 18.04
Baseline | [4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4](https://github.com/dotnet/runtime/commit/4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4)
Compare | [70df1f53ef459154c1bcc109848980fd79be5c63](https://github.com/dotnet/runtime/commit/70df1f53ef459154c1bcc109848980fd79be5c63)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4...70df1f53ef459154c1bcc109848980fd79be5c63)


### Regressions in System.Tests.Perf_GC&lt;Char&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[AllocateUninitializedArray - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 18.04/System.Tests.Perf_GC(Char).AllocateUninitializedArray(length%3a%2010000%2c%20pinned%3a%20False).html>) | 385.13 ns | 639.84 ns | 1.66 | 0.47 | False | | |
[NewOperator_Array - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 18.04/System.Tests.Perf_GC(Char).NewOperator_Array(length%3a%201000).html>) | 131.62 ns | 163.66 ns | 1.24 | 0.25 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/06_30_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Tests.Perf_GC(Char)_1.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/06_30_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Tests.Perf_GC(Char)_2.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/06_30_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Tests.Perf_GC(Char).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_GC&lt;Char&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-8927493c-9a5a-4b43-a91a-e01664f4dabd900b390b5a7470d96/16262c34-6840-43b9-a71b-c8fef137cb0d.zip?sv=2019-07-07&se=2022-07-22T14%3A12%3A09Z&sr=c&sp=rl&sig=%2FI8VfRDMKbUQM6QhkWU4RazehykkuBaCaNMp5%2Fb2QN4%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-50f7cfb6-f3c4-489b-b8c9-310bfda615e1c66eb7265f44fb88d/18136649-2d56-4b87-baea-7b0f97bab0be.zip?sv=2021-06-08&se=2022-07-23T04%3A55%3A04Z&sr=c&sp=rl&sig=DkQCURaCtJa5kW781Tt6uDZ9b2zC%2F1df44cCaRQ%2FAZ0%3D>)
### Histogram

#### System.Tests.Perf_GC&lt;Char&gt;.AllocateUninitializedArray(length: 10000, pinned: 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 639.838035604867 > 408.7982321253011.
IsChangePoint: Marked as a change because one of 6/22/2022 5:33:38 PM, 6/30/2022 12:21:07 PM falls between 6/21/2022 9:29:01 PM and 6/30/2022 12:21:07 PM.
IsRegressionStdDev: Marked as regression because -8.094038245022947 (T) = (0 -572.5866460233128) / Math.Sqrt((419.46746725493904 / (16)) + (12251.981251975001 / (28))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (28) - 2, .025) and -0.43766417091215587 = (398.2756596486809 - 572.5866460233128) / 398.2756596486809 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_GC&lt;Char&gt;.NewOperator_Array(length: 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 163.66403790932688 > 142.14024804235456.
IsChangePoint: Marked as a change because one of 6/23/2022 3:07:42 AM, 6/30/2022 12:21:07 PM falls between 6/21/2022 9:29:01 PM and 6/30/2022 12:21:07 PM.
IsRegressionStdDev: Marked as regression because -10.834409095765967 (T) = (0 -160.2773151813158) / Math.Sqrt((29.396682032067687 / (18)) + (95.39814422459236 / (26))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (18) + (26) - 2, .025) and -0.18435129980396775 = (135.32920106377617 - 160.2773151813158) / 135.32920106377617 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 18.04
Baseline	4dc676fbf39702e5a3bd9b6e60deca1cf7d150d4
Compare	70df1f53ef459154c1bcc109848980fd79be5c63
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
ArrayList - Duration of single invocation	285.13 ns	306.64 ns	1.08	0.39	False
Stack - Duration of single invocation	282.75 ns	306.25 ns	1.08	0.30	False
SortedList - Duration of single invocation	671.48 ns	810.31 ns	1.21	0.19	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
AllocateUninitializedArray - Duration of single invocation	385.13 ns	639.84 ns	1.66	0.47	False
NewOperator_Array - Duration of single invocation	131.62 ns	163.66 ns	1.24	0.25	False

[Perf] Changes at 6/22/2022 11:10:17 PM #6476

Description

Run Information

Regressions in System.Memory.Memory<Byte>

Repro

Payloads

Histogram

System.Memory.Memory<Byte>.ToArray(Size: 512)

Description of detection logic

Docs

Regressions in System.Tests.Perf_String

Repro

Payloads

Histogram

System.Tests.Perf_String.Concat_str_str_str_str(size: 1000)

Description of detection logic

Docs

Run Information

Regressions in System.Text.Json.Serialization.Tests.ColdStartSerialization<SimpleStructWithProperties>

Repro

Payloads

Histogram

System.Text.Json.Serialization.Tests.ColdStartSerialization<SimpleStructWithProperties>.NewCustomConverter

Description of detection logic

Docs

Run Information

Regressions in BenchmarksGame.BinaryTrees_6

Repro

Payloads

Histogram

BenchmarksGame.BinaryTrees_6.RunBench

Description of detection logic

Docs

Run Information

Regressions in System.Memory.ReadOnlyMemory<Char>

Repro

Payloads

Histogram

System.Memory.ReadOnlyMemory<Char>.ToArray(Size: 512)

Description of detection logic

Docs

Run Information

Regressions in BenchmarksGame.BinaryTrees_5

Repro

Payloads

Histogram

BenchmarksGame.BinaryTrees_5.RunBench

Description of detection logic

Docs

Run Information

Regressions in System.Collections.CtorGivenSizeNonGeneric

Repro

Payloads

Histogram

System.Collections.CtorGivenSizeNonGeneric.ArrayList(Size: 512)

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Run Information

Regressions in System.Collections.CtorFromCollection<String>

Repro

Payloads

Histogram

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

Description of detection logic

Docs

Run Information

Regressions in System.Memory.Span<Int32>

Repro

Payloads

Histogram

System.Memory.Span<Int32>.LastIndexOfValue(Size: 512)

Description of detection logic

Docs

Run Information

Regressions in System.Tests.Perf_GC<Char>

Repro

Payloads

Histogram