[Perf] Linux/x64: 7 Improvements on 1/30/2023 2:40:17 PM

### Run Information

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [02682ad6397b2833660b104780a9d361f2cba6d7](https://github.com/dotnet/runtime/commit/02682ad6397b2833660b104780a9d361f2cba6d7)
Compare | [b5e79f56d1ed06dbf6765b29c021726ff4195e91](https://github.com/dotnet/runtime/commit/b5e79f56d1ed06dbf6765b29c021726ff4195e91)
Diff | [Diff](https://github.com/dotnet/runtime/compare/02682ad6397b2833660b104780a9d361f2cba6d7...b5e79f56d1ed06dbf6765b29c021726ff4195e91)


### Improvements in System.Buffers.Tests.ReadOnlySequenceTests&lt;Byte&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[IterateGetPositionArray - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Buffers.Tests.ReadOnlySequenceTests(Byte).IterateGetPositionArray.html>) | 21.16 ns | 18.68 ns | 0.88 | 0.01 | False | | |
[IterateGetPositionMemory - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Buffers.Tests.ReadOnlySequenceTests(Byte).IterateGetPositionMemory.html>) | 31.52 ns | 29.46 ns | 0.93 | 0.00 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_31_2023/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Buffers.Tests.ReadOnlySequenceTests(Byte)_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_31_2023/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Buffers.Tests.ReadOnlySequenceTests(Byte)_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_31_2023/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Buffers.Tests.ReadOnlySequenceTests(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.ReadOnlySequenceTests&lt;Byte&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-c91aac30-8bd4-438b-a6f1-9bd5d56d9bd63b48ef563fd465cb0/66c594b2-fe02-4b61-a25d-27c8b376d1bc.zip?sv=2021-08-06&se=2023-03-01T09%3A49%3A26Z&sr=c&sp=rl&sig=%2F8Dgr%2B3b6H2hRL1p5wSgCLrciZHPztuh4iAJIVUzlH8%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-c9cf4874-2997-4ce0-adaa-4ab22605408453c998f736a45228e/bcfbbfd5-cdda-4cdd-905b-dd5bad374e7f.zip?sv=2021-08-06&se=2023-03-01T19%3A26%3A49Z&sr=c&sp=rl&sig=7PBU%2F8L4mopTdPNWLCa7SlCI5PCDiShyxGjDKNWmKfg%3D>)
### Histogram

#### System.Buffers.Tests.ReadOnlySequenceTests&lt;Byte&gt;.IterateGetPositionArray

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 18.682180318710788 < 20.127309963747997.
IsChangePoint: Marked as a change because one of 11/18/2022 7:31:41 AM, 1/13/2023 4:37:08 PM, 1/30/2023 11:52:26 AM, 1/31/2023 8:24:06 AM falls between 1/22/2023 4:26:49 PM and 1/31/2023 8:24:06 AM.
IsImprovementStdDev: Marked as improvement because 85.57733408762691 (T) = (0 -18.683839249808326) / Math.Sqrt((0.15148362595356502 / (299)) + (5.504104772755108E-06 / (2))) is greater than 1.9679296690655894 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (2) - 2, .975) and 0.09368995584652903 = (20.615284328289402 - 18.683839249808326) / 20.615284328289402 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Buffers.Tests.ReadOnlySequenceTests&lt;Byte&gt;.IterateGetPositionMemory

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 29.464340190111667 < 29.90519791853771.
IsChangePoint: Marked as a change because one of 11/18/2022 3:21:53 PM, 12/12/2022 5:25:39 PM, 1/13/2023 4:37:08 PM, 1/30/2023 11:52:26 AM, 1/31/2023 8:24:06 AM falls between 1/22/2023 4:26:49 PM and 1/31/2023 8:24:06 AM.
IsImprovementStdDev: Marked as improvement because 68.28725091176199 (T) = (0 -29.441824263140216) / Math.Sqrt((0.11550920357996716 / (299)) + (0.0010139339347674287 / (2))) is greater than 1.9679296690655894 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (2) - 2, .975) and 0.0648278459679674 = (31.482785427475143 - 29.441824263140216) / 31.482785427475143 is greater than 0.05.
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 | x64
-- | --
OS | ubuntu 18.04
Baseline | [02682ad6397b2833660b104780a9d361f2cba6d7](https://github.com/dotnet/runtime/commit/02682ad6397b2833660b104780a9d361f2cba6d7)
Compare | [b5e79f56d1ed06dbf6765b29c021726ff4195e91](https://github.com/dotnet/runtime/commit/b5e79f56d1ed06dbf6765b29c021726ff4195e91)
Diff | [Diff](https://github.com/dotnet/runtime/compare/02682ad6397b2833660b104780a9d361f2cba6d7...b5e79f56d1ed06dbf6765b29c021726ff4195e91)


### Improvements in System.Buffers.Tests.ReadOnlySequenceTests&lt;Char&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[IterateGetPositionSingleSegment - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Buffers.Tests.ReadOnlySequenceTests(Char).IterateGetPositionSingleSegment.html>) | 26.44 ns | 23.47 ns | 0.89 | 0.02 | False | | |
[IterateGetPositionArray - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Buffers.Tests.ReadOnlySequenceTests(Char).IterateGetPositionArray.html>) | 20.25 ns | 17.96 ns | 0.89 | 0.02 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_31_2023/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Buffers.Tests.ReadOnlySequenceTests(Char)_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_31_2023/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Buffers.Tests.ReadOnlySequenceTests(Char)_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_31_2023/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Buffers.Tests.ReadOnlySequenceTests(Char).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Buffers.Tests.ReadOnlySequenceTests&lt;Char&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-c91aac30-8bd4-438b-a6f1-9bd5d56d9bd63b48ef563fd465cb0/66c594b2-fe02-4b61-a25d-27c8b376d1bc.zip?sv=2021-08-06&se=2023-03-01T09%3A49%3A26Z&sr=c&sp=rl&sig=%2F8Dgr%2B3b6H2hRL1p5wSgCLrciZHPztuh4iAJIVUzlH8%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-c9cf4874-2997-4ce0-adaa-4ab22605408453c998f736a45228e/bcfbbfd5-cdda-4cdd-905b-dd5bad374e7f.zip?sv=2021-08-06&se=2023-03-01T19%3A26%3A49Z&sr=c&sp=rl&sig=7PBU%2F8L4mopTdPNWLCa7SlCI5PCDiShyxGjDKNWmKfg%3D>)
### Histogram

#### System.Buffers.Tests.ReadOnlySequenceTests&lt;Char&gt;.IterateGetPositionSingleSegment

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 23.469689891257342 < 24.79439099357034.
IsChangePoint: Marked as a change because one of 12/1/2022 7:29:59 PM, 1/17/2023 8:36:05 PM, 1/30/2023 11:52:26 AM, 1/31/2023 8:24:06 AM falls between 1/22/2023 4:26:49 PM and 1/31/2023 8:24:06 AM.
IsImprovementStdDev: Marked as improvement because 64.43562458345563 (T) = (0 -23.445301815932147) / Math.Sqrt((0.22311752022250905 / (299)) + (0.001189556436134775 / (2))) is greater than 1.9679296690655894 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (2) - 2, .975) and 0.09144009308812794 = (25.80490470421592 - 23.445301815932147) / 25.80490470421592 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Buffers.Tests.ReadOnlySequenceTests&lt;Char&gt;.IterateGetPositionArray

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 17.95839613540294 < 19.528226393908337.
IsChangePoint: Marked as a change because one of 11/18/2022 6:07:58 AM, 1/13/2023 4:18:46 AM, 1/30/2023 11:52:26 AM, 1/31/2023 8:24:06 AM falls between 1/22/2023 4:26:49 PM and 1/31/2023 8:24:06 AM.
IsImprovementStdDev: Marked as improvement because 42.59681131779715 (T) = (0 -18.01157236824786) / Math.Sqrt((0.13896826416945157 / (299)) + (0.005655423479154843 / (2))) is greater than 1.9679296690655894 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (2) - 2, .975) and 0.11948765749676826 = (20.455786363019385 - 18.01157236824786) / 20.455786363019385 is greater than 0.05.
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 | x64
-- | --
OS | ubuntu 18.04
Baseline | [02682ad6397b2833660b104780a9d361f2cba6d7](https://github.com/dotnet/runtime/commit/02682ad6397b2833660b104780a9d361f2cba6d7)
Compare | [b5e79f56d1ed06dbf6765b29c021726ff4195e91](https://github.com/dotnet/runtime/commit/b5e79f56d1ed06dbf6765b29c021726ff4195e91)
Diff | [Diff](https://github.com/dotnet/runtime/compare/02682ad6397b2833660b104780a9d361f2cba6d7...b5e79f56d1ed06dbf6765b29c021726ff4195e91)


### Improvements in System.Text.Json.Document.Tests.Perf_EnumerateArray

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[EnumerateArray - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Text.Json.Document.Tests.Perf_EnumerateArray.EnumerateArray(TestCase%3a%20ArrayOfStrings).html>) | 665.72 ns | 511.64 ns | 0.77 | 0.02 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_31_2023/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Text.Json.Document.Tests.Perf_EnumerateArray_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_31_2023/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Text.Json.Document.Tests.Perf_EnumerateArray.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.Json.Document.Tests.Perf_EnumerateArray*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-c91aac30-8bd4-438b-a6f1-9bd5d56d9bd63b48ef563fd465cb0/66c594b2-fe02-4b61-a25d-27c8b376d1bc.zip?sv=2021-08-06&se=2023-03-01T09%3A49%3A26Z&sr=c&sp=rl&sig=%2F8Dgr%2B3b6H2hRL1p5wSgCLrciZHPztuh4iAJIVUzlH8%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-c9cf4874-2997-4ce0-adaa-4ab22605408453c998f736a45228e/bcfbbfd5-cdda-4cdd-905b-dd5bad374e7f.zip?sv=2021-08-06&se=2023-03-01T19%3A26%3A49Z&sr=c&sp=rl&sig=7PBU%2F8L4mopTdPNWLCa7SlCI5PCDiShyxGjDKNWmKfg%3D>)
### Histogram

#### System.Text.Json.Document.Tests.Perf_EnumerateArray.EnumerateArray(TestCase: ArrayOfStrings)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 511.64067992477493 < 632.1656544620932.
IsChangePoint: Marked as a change because one of 1/11/2023 2:37:52 AM, 1/30/2023 11:52:26 AM, 1/31/2023 8:24:06 AM falls between 1/22/2023 4:26:49 PM and 1/31/2023 8:24:06 AM.
IsImprovementStdDev: Marked as improvement because 22.655931670118022 (T) = (0 -512.2017868737769) / Math.Sqrt((3326.813463612278 / (299)) + (0.6296820164364971 / (2))) is greater than 1.9679296690655894 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (2) - 2, .975) and 0.13014448942369256 = (588.8354797389587 - 512.2017868737769) / 588.8354797389587 is greater than 0.05.
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 | x64
-- | --
OS | ubuntu 18.04
Baseline | [02682ad6397b2833660b104780a9d361f2cba6d7](https://github.com/dotnet/runtime/commit/02682ad6397b2833660b104780a9d361f2cba6d7)
Compare | [b5e79f56d1ed06dbf6765b29c021726ff4195e91](https://github.com/dotnet/runtime/commit/b5e79f56d1ed06dbf6765b29c021726ff4195e91)
Diff | [Diff](https://github.com/dotnet/runtime/compare/02682ad6397b2833660b104780a9d361f2cba6d7...b5e79f56d1ed06dbf6765b29c021726ff4195e91)


### Improvements in System.Globalization.Tests.StringSearch

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[IsSuffix_DifferentLastChar - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Globalization.Tests.StringSearch.IsSuffix_DifferentLastChar(Options%3a%20(en-US%2c%20Ordinal%2c%20False)).html>) | 13.19 ns | 11.74 ns | 0.89 | 0.02 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_31_2023/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Globalization.Tests.StringSearch_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_31_2023/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Globalization.Tests.StringSearch.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Globalization.Tests.StringSearch*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-c91aac30-8bd4-438b-a6f1-9bd5d56d9bd63b48ef563fd465cb0/66c594b2-fe02-4b61-a25d-27c8b376d1bc.zip?sv=2021-08-06&se=2023-03-01T09%3A49%3A26Z&sr=c&sp=rl&sig=%2F8Dgr%2B3b6H2hRL1p5wSgCLrciZHPztuh4iAJIVUzlH8%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-c9cf4874-2997-4ce0-adaa-4ab22605408453c998f736a45228e/bcfbbfd5-cdda-4cdd-905b-dd5bad374e7f.zip?sv=2021-08-06&se=2023-03-01T19%3A26%3A49Z&sr=c&sp=rl&sig=7PBU%2F8L4mopTdPNWLCa7SlCI5PCDiShyxGjDKNWmKfg%3D>)
### Histogram

#### System.Globalization.Tests.StringSearch.IsSuffix_DifferentLastChar(Options: (en-US, Ordinal, False))

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 11.73578665051554 < 12.613645227689458.
IsChangePoint: Marked as a change because one of 12/14/2022 5:20:21 PM, 1/30/2023 11:52:26 AM, 1/31/2023 8:24:06 AM falls between 1/22/2023 4:26:49 PM and 1/31/2023 8:24:06 AM.
IsImprovementStdDev: Marked as improvement because 73.72960313692464 (T) = (0 -11.733921861981248) / Math.Sqrt((0.14174803154199883 / (299)) + (6.954872555250127E-06 / (2))) is greater than 1.9679296690655894 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (2) - 2, .975) and 0.1207338360075371 = (13.345130681136766 - 11.733921861981248) / 13.345130681136766 is greater than 0.05.
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 | x64
-- | --
OS | ubuntu 18.04
Baseline | [02682ad6397b2833660b104780a9d361f2cba6d7](https://github.com/dotnet/runtime/commit/02682ad6397b2833660b104780a9d361f2cba6d7)
Compare | [b5e79f56d1ed06dbf6765b29c021726ff4195e91](https://github.com/dotnet/runtime/commit/b5e79f56d1ed06dbf6765b29c021726ff4195e91)
Diff | [Diff](https://github.com/dotnet/runtime/compare/02682ad6397b2833660b104780a9d361f2cba6d7...b5e79f56d1ed06dbf6765b29c021726ff4195e91)


### Improvements in System.Text.Json.Document.Tests.Perf_ParseThenWrite

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ParseThenWrite - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Text.Json.Document.Tests.Perf_ParseThenWrite.ParseThenWrite(IsDataIndented%3a%20False%2c%20TestCase%3a%20DeepTree).html>) | 10.21 μs | 9.01 μs | 0.88 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_31_2023/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Text.Json.Document.Tests.Perf_ParseThenWrite_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_31_2023/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Text.Json.Document.Tests.Perf_ParseThenWrite.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.Json.Document.Tests.Perf_ParseThenWrite*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-c91aac30-8bd4-438b-a6f1-9bd5d56d9bd63b48ef563fd465cb0/66c594b2-fe02-4b61-a25d-27c8b376d1bc.zip?sv=2021-08-06&se=2023-03-01T09%3A49%3A26Z&sr=c&sp=rl&sig=%2F8Dgr%2B3b6H2hRL1p5wSgCLrciZHPztuh4iAJIVUzlH8%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-c9cf4874-2997-4ce0-adaa-4ab22605408453c998f736a45228e/bcfbbfd5-cdda-4cdd-905b-dd5bad374e7f.zip?sv=2021-08-06&se=2023-03-01T19%3A26%3A49Z&sr=c&sp=rl&sig=7PBU%2F8L4mopTdPNWLCa7SlCI5PCDiShyxGjDKNWmKfg%3D>)
### Histogram

#### System.Text.Json.Document.Tests.Perf_ParseThenWrite.ParseThenWrite(IsDataIndented: False, TestCase: DeepTree)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 9.008264870564282 < 9.661903634358023.
IsChangePoint: Marked as a change because one of 1/30/2023 11:52:26 AM, 1/31/2023 8:24:06 AM falls between 1/22/2023 4:26:49 PM and 1/31/2023 8:24:06 AM.
IsImprovementStdDev: Marked as improvement because 161.0905916570342 (T) = (0 -9002.283637916531) / Math.Sqrt((3584.613051067139 / (299)) + (71.55028797303059 / (2))) is greater than 1.9679296690655894 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (2) - 2, .975) and 0.11005959705868226 = (10115.60280684339 - 9002.283637916531) / 10115.60280684339 is greater than 0.05.
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	x64
OS	ubuntu 18.04
Baseline	02682ad6397b2833660b104780a9d361f2cba6d7
Compare	b5e79f56d1ed06dbf6765b29c021726ff4195e91
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
IterateGetPositionArray - Duration of single invocation	21.16 ns	18.68 ns	0.88	0.01	False
IterateGetPositionMemory - Duration of single invocation	31.52 ns	29.46 ns	0.93	0.00	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
IterateGetPositionSingleSegment - Duration of single invocation	26.44 ns	23.47 ns	0.89	0.02	False
IterateGetPositionArray - Duration of single invocation	20.25 ns	17.96 ns	0.89	0.02	False

[Perf] Linux/x64: 7 Improvements on 1/30/2023 2:40:17 PM #12280

Description

Run Information

Improvements in System.Buffers.Tests.ReadOnlySequenceTests<Byte>

Repro

Payloads

Histogram

System.Buffers.Tests.ReadOnlySequenceTests<Byte>.IterateGetPositionArray

Description of detection logic

Description of detection logic

Docs

Improvements in System.Buffers.Tests.ReadOnlySequenceTests<Char>

Repro

Payloads

Histogram

System.Buffers.Tests.ReadOnlySequenceTests<Char>.IterateGetPositionSingleSegment

Description of detection logic

Description of detection logic

Docs

Run Information

Improvements in System.Text.Json.Document.Tests.Perf_EnumerateArray

Repro

Payloads

Histogram

System.Text.Json.Document.Tests.Perf_EnumerateArray.EnumerateArray(TestCase: ArrayOfStrings)

Description of detection logic

Docs

Run Information

Improvements in System.Globalization.Tests.StringSearch

Repro

Payloads

Histogram

System.Globalization.Tests.StringSearch.IsSuffix_DifferentLastChar(Options: (en-US, Ordinal, False))

Description of detection logic

Docs

Run Information

Improvements in System.Text.Json.Document.Tests.Perf_ParseThenWrite

Repro

Payloads

Histogram

System.Text.Json.Document.Tests.Perf_ParseThenWrite.ParseThenWrite(IsDataIndented: False, TestCase: DeepTree)

Description of detection logic

Docs

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