[Perf] Windows/x64: 14 Improvements on 1/11/2023 8:19:46 AM

### Run Information

Architecture | x64
-- | --
OS | Windows 10.0.19042
Baseline | [71bb0d481086b8b8a89a99a17ec80a861f32dc5d](https://github.com/dotnet/runtime/commit/71bb0d481086b8b8a89a99a17ec80a861f32dc5d)
Compare | [5385f045f9aee91c22922d21552c4317198710f1](https://github.com/dotnet/runtime/commit/5385f045f9aee91c22922d21552c4317198710f1)
Diff | [Diff](https://github.com/dotnet/runtime/compare/71bb0d481086b8b8a89a99a17ec80a861f32dc5d...5385f045f9aee91c22922d21552c4317198710f1)


### Improvements in System.Text.Json.Serialization.Tests.ReadJson&lt;Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[DeserializeFromUtf8Bytes - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/System.Text.Json.Serialization.Tests.ReadJson(Int32).DeserializeFromUtf8Bytes(Mode%3a%20SourceGen).html>) | 93.89 ns | 85.21 ns | 0.91 | 0.05 | False | | |
[DeserializeFromUtf8Bytes - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/System.Text.Json.Serialization.Tests.ReadJson(Int32).DeserializeFromUtf8Bytes(Mode%3a%20Reflection).html>) | 90.23 ns | 84.13 ns | 0.93 | 0.06 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Improvement/System.Text.Json.Serialization.Tests.ReadJson(Int32)_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Improvement/System.Text.Json.Serialization.Tests.ReadJson(Int32)_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Improvement/System.Text.Json.Serialization.Tests.ReadJson(Int32).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.Json.Serialization.Tests.ReadJson&lt;Int32&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-4036f3d1-f953-4f0c-82bb-b3247f67559f67a4ab1c6da48d28a/57996c89-f026-4c87-896a-745d9a7c0f9a.zip?sv=2021-08-06&se=2023-02-10T01%3A09%3A11Z&sr=c&sp=rl&sig=EIwzHpRvgm8C5Z6UDy9G5VHBTg10wdWrq6xlNLj8i%2FM%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-e701fa86-5168-4009-bb27-4ae75a915ec7970ff7817b74a269d/88a752f8-8a13-44d6-ba16-c492ef3a8211.zip?sv=2021-08-06&se=2023-02-10T18%3A05%3A40Z&sr=c&sp=rl&sig=%2BVzWiile5S2jmyPPUw4dHu3mtHGfE5lLZWkyhjWLV%2Fc%3D>)
### Histogram

#### System.Text.Json.Serialization.Tests.ReadJson&lt;Int32&gt;.DeserializeFromUtf8Bytes(Mode: SourceGen)

```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 85.20970505457376 < 89.1088766561678.
IsChangePoint: Marked as a change because one of 12/5/2022 3:14:07 PM, 1/11/2023 2:37:52 AM, 1/17/2023 6:49:05 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 6:49:05 AM.
IsImprovementStdDev: Marked as improvement because 34.104810308942206 (T) = (0 -85.32910318933537) / Math.Sqrt((4.044500669603929 / (212)) + (0.3567130638480651 / (30))) is greater than 1.9698976350765727 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (212) + (30) - 2, .975) and 0.06571383867593349 = (91.33080069216408 - 85.32910318933537) / 91.33080069216408 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.Json.Serialization.Tests.ReadJson&lt;Int32&gt;.DeserializeFromUtf8Bytes(Mode: Reflection)

```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 84.13326843552649 < 85.64543916496137.
IsChangePoint: Marked as a change because one of 12/5/2022 3:14:07 PM, 12/21/2022 9:23:17 AM, 1/11/2023 2:37:52 AM, 1/17/2023 6:49:05 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 6:49:05 AM.
IsImprovementStdDev: Marked as improvement because 23.57350995032281 (T) = (0 -84.3535140581799) / Math.Sqrt((8.868451619954685 / (212)) + (1.375205813808394 / (30))) is greater than 1.9698976350765727 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (212) + (30) - 2, .975) and 0.07642329671517059 = (91.3335229853296 - 84.3535140581799) / 91.3335229853296 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 | Windows 10.0.19042
Baseline | [71bb0d481086b8b8a89a99a17ec80a861f32dc5d](https://github.com/dotnet/runtime/commit/71bb0d481086b8b8a89a99a17ec80a861f32dc5d)
Compare | [5385f045f9aee91c22922d21552c4317198710f1](https://github.com/dotnet/runtime/commit/5385f045f9aee91c22922d21552c4317198710f1)
Diff | [Diff](https://github.com/dotnet/runtime/compare/71bb0d481086b8b8a89a99a17ec80a861f32dc5d...5385f045f9aee91c22922d21552c4317198710f1)


### 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_SecondHalf - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/System.Globalization.Tests.StringSearch.IsSuffix_SecondHalf(Options%3a%20(en-US%2c%20IgnoreNonSpace%2c%20False)).html>) | 152.12 ns | 141.53 ns | 0.93 | 0.00 | False | | |
[IsPrefix_FirstHalf - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options%3a%20(en-US%2c%20IgnoreNonSpace%2c%20False)).html>) | 156.29 ns | 143.85 ns | 0.92 | 0.00 | False | | |
[IsPrefix_FirstHalf - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options%3a%20(%2c%20None%2c%20False)).html>) | 156.30 ns | 144.06 ns | 0.92 | 0.01 | False | | |
[LastIndexOf_Word_NotFound - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options%3a%20(en-US%2c%20OrdinalIgnoreCase%2c%20False)).html>) | 523.03 ns | 410.27 ns | 0.78 | 0.01 | False | | |
[IsPrefix_FirstHalf - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options%3a%20(en-US%2c%20None%2c%20False)).html>) | 154.70 ns | 143.69 ns | 0.93 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Improvement/System.Globalization.Tests.StringSearch_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Improvement/System.Globalization.Tests.StringSearch_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Improvement/System.Globalization.Tests.StringSearch_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Improvement/System.Globalization.Tests.StringSearch_4.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Improvement/System.Globalization.Tests.StringSearch_5.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Improvement/System.Globalization.Tests.StringSearch.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Globalization.Tests.StringSearch*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-4036f3d1-f953-4f0c-82bb-b3247f67559f67a4ab1c6da48d28a/57996c89-f026-4c87-896a-745d9a7c0f9a.zip?sv=2021-08-06&se=2023-02-10T01%3A09%3A11Z&sr=c&sp=rl&sig=EIwzHpRvgm8C5Z6UDy9G5VHBTg10wdWrq6xlNLj8i%2FM%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-e701fa86-5168-4009-bb27-4ae75a915ec7970ff7817b74a269d/88a752f8-8a13-44d6-ba16-c492ef3a8211.zip?sv=2021-08-06&se=2023-02-10T18%3A05%3A40Z&sr=c&sp=rl&sig=%2BVzWiile5S2jmyPPUw4dHu3mtHGfE5lLZWkyhjWLV%2Fc%3D>)
### Histogram

#### System.Globalization.Tests.StringSearch.IsSuffix_SecondHalf(Options: (en-US, IgnoreNonSpace, 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 141.53478791013893 < 144.19295089514353.
IsChangePoint: Marked as a change because one of 1/11/2023 2:37:52 AM, 1/17/2023 6:49:05 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 6:49:05 AM.
IsImprovementStdDev: Marked as improvement because 32.15266621123199 (T) = (0 -142.36948410996519) / Math.Sqrt((0.3176423292308934 / (299)) + (2.2284907189910506 / (30))) is greater than 1.9672451058622664 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (30) - 2, .975) and 0.058372400469021764 = (151.19510534831284 - 142.36948410996519) / 151.19510534831284 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options: (en-US, IgnoreNonSpace, 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 143.8493887377669 < 148.5307354644846.
IsChangePoint: Marked as a change because one of 1/11/2023 2:37:52 AM, 1/17/2023 6:49:05 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 6:49:05 AM.
IsImprovementStdDev: Marked as improvement because 66.33741469648247 (T) = (0 -143.76580606503248) / Math.Sqrt((0.8713461899315349 / (299)) + (0.8749073740171796 / (30))) is greater than 1.9672451058622664 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (30) - 2, .975) and 0.07633432969091569 = (155.6470167576158 - 143.76580606503248) / 155.6470167576158 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options: (, None, 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 144.05810298256017 < 148.5101016614829.
IsChangePoint: Marked as a change because one of 1/11/2023 2:37:52 AM, 1/17/2023 6:49:05 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 6:49:05 AM.
IsImprovementStdDev: Marked as improvement because 81.4761338565778 (T) = (0 -143.85698615137252) / Math.Sqrt((0.9374310556460869 / (299)) + (0.5306371836784859 / (30))) is greater than 1.9672451058622664 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (30) - 2, .975) and 0.07555343964997945 = (155.6141721127767 - 143.85698615137252) / 155.6141721127767 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (en-US, OrdinalIgnoreCase, 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 410.2653103279839 < 496.91457913480815.
IsChangePoint: Marked as a change because one of 1/11/2023 2:37:52 AM, 1/13/2023 4:18:46 AM, 1/17/2023 6:49:05 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 6:49:05 AM.
IsImprovementStdDev: Marked as improvement because 200.99477330730764 (T) = (0 -410.3670199347482) / Math.Sqrt((97.56841615563015 / (299)) + (0.03679627889522617 / (22))) is greater than 1.9674283869023508 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (22) - 2, .975) and 0.21905846179680535 = (525.4772602811327 - 410.3670199347482) / 525.4772602811327 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options: (en-US, None, 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 143.69166620151574 < 148.3287937290018.
IsChangePoint: Marked as a change because one of 1/11/2023 2:37:52 AM, 1/17/2023 6:49:05 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 6:49:05 AM.
IsImprovementStdDev: Marked as improvement because 68.41536216969016 (T) = (0 -143.82687737497216) / Math.Sqrt((1.5267323860976605 / (299)) + (0.7539673830245344 / (30))) is greater than 1.9672451058622664 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (30) - 2, .975) and 0.07639729723157855 = (155.723751071606 - 143.82687737497216) / 155.723751071606 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 | Windows 10.0.19042
Baseline | [71bb0d481086b8b8a89a99a17ec80a861f32dc5d](https://github.com/dotnet/runtime/commit/71bb0d481086b8b8a89a99a17ec80a861f32dc5d)
Compare | [5385f045f9aee91c22922d21552c4317198710f1](https://github.com/dotnet/runtime/commit/5385f045f9aee91c22922d21552c4317198710f1)
Diff | [Diff](https://github.com/dotnet/runtime/compare/71bb0d481086b8b8a89a99a17ec80a861f32dc5d...5385f045f9aee91c22922d21552c4317198710f1)


### Improvements in System.Hashing

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[GetStringHashCode - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/System.Hashing.GetStringHashCode(BytesCount%3a%201000).html>) | 389.32 ns | 368.43 ns | 0.95 | 0.00 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Improvement/System.Hashing_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Improvement/System.Hashing.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Hashing*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-4036f3d1-f953-4f0c-82bb-b3247f67559f67a4ab1c6da48d28a/57996c89-f026-4c87-896a-745d9a7c0f9a.zip?sv=2021-08-06&se=2023-02-10T01%3A09%3A11Z&sr=c&sp=rl&sig=EIwzHpRvgm8C5Z6UDy9G5VHBTg10wdWrq6xlNLj8i%2FM%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-e701fa86-5168-4009-bb27-4ae75a915ec7970ff7817b74a269d/88a752f8-8a13-44d6-ba16-c492ef3a8211.zip?sv=2021-08-06&se=2023-02-10T18%3A05%3A40Z&sr=c&sp=rl&sig=%2BVzWiile5S2jmyPPUw4dHu3mtHGfE5lLZWkyhjWLV%2Fc%3D>)
### Histogram

#### System.Hashing.GetStringHashCode(BytesCount: 1000)

```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 368.42988927697394 < 369.9746705242599.
IsChangePoint: Marked as a change because one of 1/11/2023 2:37:52 AM, 1/17/2023 6:49:05 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 6:49:05 AM.
IsImprovementStdDev: Marked as improvement because 279.4438753107469 (T) = (0 -368.5042468602642) / Math.Sqrt((0.22598904725683003 / (299)) + (0.13646159826786033 / (30))) is greater than 1.9672451058622664 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (30) - 2, .975) and 0.05233938744102421 = (388.8567721150604 - 368.5042468602642) / 388.8567721150604 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 | Windows 10.0.19042
Baseline | [71bb0d481086b8b8a89a99a17ec80a861f32dc5d](https://github.com/dotnet/runtime/commit/71bb0d481086b8b8a89a99a17ec80a861f32dc5d)
Compare | [5385f045f9aee91c22922d21552c4317198710f1](https://github.com/dotnet/runtime/commit/5385f045f9aee91c22922d21552c4317198710f1)
Diff | [Diff](https://github.com/dotnet/runtime/compare/71bb0d481086b8b8a89a99a17ec80a861f32dc5d...5385f045f9aee91c22922d21552c4317198710f1)


### Improvements in PerfLabTests.GetMember

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[GetMethod12 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/PerfLabTests.GetMember.GetMethod12.html>) | 841.44 μs | 781.55 μs | 0.93 | 0.00 | False | | |
[GetMethod20 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/PerfLabTests.GetMember.GetMethod20.html>) | 1.41 ms | 1.29 ms | 0.91 | 0.01 | False | | |
[GetMethod10 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/PerfLabTests.GetMember.GetMethod10.html>) | 706.41 μs | 659.09 μs | 0.93 | 0.02 | False | | |
[GetMethod2 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/PerfLabTests.GetMember.GetMethod2.html>) | 136.22 μs | 125.07 μs | 0.92 | 0.04 | False | | |
[GetMethod15 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/PerfLabTests.GetMember.GetMethod15.html>) | 1.05 ms | 986.96 μs | 0.94 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Improvement/PerfLabTests.GetMember_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Improvement/PerfLabTests.GetMember_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Improvement/PerfLabTests.GetMember_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Improvement/PerfLabTests.GetMember_4.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Improvement/PerfLabTests.GetMember_5.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Improvement/PerfLabTests.GetMember.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'PerfLabTests.GetMember*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-4036f3d1-f953-4f0c-82bb-b3247f67559f67a4ab1c6da48d28a/57996c89-f026-4c87-896a-745d9a7c0f9a.zip?sv=2021-08-06&se=2023-02-10T01%3A09%3A11Z&sr=c&sp=rl&sig=EIwzHpRvgm8C5Z6UDy9G5VHBTg10wdWrq6xlNLj8i%2FM%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-e701fa86-5168-4009-bb27-4ae75a915ec7970ff7817b74a269d/88a752f8-8a13-44d6-ba16-c492ef3a8211.zip?sv=2021-08-06&se=2023-02-10T18%3A05%3A40Z&sr=c&sp=rl&sig=%2BVzWiile5S2jmyPPUw4dHu3mtHGfE5lLZWkyhjWLV%2Fc%3D>)
### Histogram

#### PerfLabTests.GetMember.GetMethod12

```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 781.5505158730158 < 808.0918854166667.
IsChangePoint: Marked as a change because one of 11/3/2022 9:01:15 AM, 1/11/2023 2:37:52 AM, 1/17/2023 6:49:05 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 6:49:05 AM.
IsImprovementStdDev: Marked as improvement because 64.88340029601899 (T) = (0 -778311.9861276456) / Math.Sqrt((77284597.6994202 / (299)) + (27669830.263572462 / (30))) is greater than 1.9672451058622664 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (30) - 2, .975) and 0.0830631375636488 = (848817.4246366628 - 778311.9861276456) / 848817.4246366628 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### PerfLabTests.GetMember.GetMethod20

```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 1.2927220486111113 < 1.3418383374368685.
IsChangePoint: Marked as a change because one of 11/2/2022 9:17:08 PM, 1/11/2023 2:37:52 AM, 1/17/2023 6:49:05 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 6:49:05 AM.
IsImprovementStdDev: Marked as improvement because 41.850126497711486 (T) = (0 -1307810.7866427556) / Math.Sqrt((217103758.72657248 / (299)) + (192468780.8328541 / (30))) is greater than 1.9672451058622664 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (30) - 2, .975) and 0.07878013704206276 = (1419651.0944124856 - 1307810.7866427556) / 1419651.0944124856 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### PerfLabTests.GetMember.GetMethod10

```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 659.0939756944443 < 669.2397741429766.
IsChangePoint: Marked as a change because one of 11/2/2022 9:17:08 PM, 1/11/2023 2:37:52 AM, 1/17/2023 6:49:05 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 6:49:05 AM.
IsImprovementStdDev: Marked as improvement because 53.34291505934309 (T) = (0 -648783.4343451747) / Math.Sqrt((66945657.736959726 / (299)) + (29057586.97007345 / (30))) is greater than 1.9672451058622664 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (30) - 2, .975) and 0.08238774486603812 = (707034.4044723542 - 648783.4343451747) / 707034.4044723542 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### PerfLabTests.GetMember.GetMethod2

```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 125.0664857142857 < 126.02416591000808.
IsChangePoint: Marked as a change because one of 11/2/2022 9:17:08 PM, 1/11/2023 2:37:52 AM, 1/17/2023 6:49:05 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 6:49:05 AM.
IsImprovementStdDev: Marked as improvement because 40.76294043737647 (T) = (0 -125387.62066810903) / Math.Sqrt((3919491.163388816 / (299)) + (1025331.66093151 / (30))) is greater than 1.9672451058622664 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (30) - 2, .975) and 0.06602581728469749 = (134251.69880346698 - 125387.62066810903) / 134251.69880346698 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### PerfLabTests.GetMember.GetMethod15

```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 986.9561764705882 < 0.9976992031249999.
IsChangePoint: Marked as a change because one of 11/2/2022 9:17:08 PM, 1/11/2023 2:37:52 AM, 1/17/2023 6:49:05 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 6:49:05 AM.
IsImprovementStdDev: Marked as improvement because 54.193159931445855 (T) = (0 -974301.0763346005) / Math.Sqrt((126250352.67666104 / (299)) + (49708944.14355533 / (30))) is greater than 1.9672451058622664 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (30) - 2, .975) and 0.07424958807381864 = (1052444.6587146542 - 974301.0763346005) / 1052444.6587146542 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 | Windows 10.0.19042
Baseline | [71bb0d481086b8b8a89a99a17ec80a861f32dc5d](https://github.com/dotnet/runtime/commit/71bb0d481086b8b8a89a99a17ec80a861f32dc5d)
Compare | [5385f045f9aee91c22922d21552c4317198710f1](https://github.com/dotnet/runtime/commit/5385f045f9aee91c22922d21552c4317198710f1)
Diff | [Diff](https://github.com/dotnet/runtime/compare/71bb0d481086b8b8a89a99a17ec80a861f32dc5d...5385f045f9aee91c22922d21552c4317198710f1)


### Improvements in PerfLabTests.LowLevelPerf

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ForeachOverList100Elements - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.19042/amd/PerfLabTests.LowLevelPerf.ForeachOverList100Elements.html>) | 9.02 ms | 6.27 ms | 0.69 | 0.09 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Improvement/PerfLabTests.LowLevelPerf_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_Windows%2010.0.19042/amd_Improvement/PerfLabTests.LowLevelPerf.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'PerfLabTests.LowLevelPerf*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-4036f3d1-f953-4f0c-82bb-b3247f67559f67a4ab1c6da48d28a/57996c89-f026-4c87-896a-745d9a7c0f9a.zip?sv=2021-08-06&se=2023-02-10T01%3A09%3A11Z&sr=c&sp=rl&sig=EIwzHpRvgm8C5Z6UDy9G5VHBTg10wdWrq6xlNLj8i%2FM%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-e701fa86-5168-4009-bb27-4ae75a915ec7970ff7817b74a269d/88a752f8-8a13-44d6-ba16-c492ef3a8211.zip?sv=2021-08-06&se=2023-02-10T18%3A05%3A40Z&sr=c&sp=rl&sig=%2BVzWiile5S2jmyPPUw4dHu3mtHGfE5lLZWkyhjWLV%2Fc%3D>)
### Histogram

#### PerfLabTests.LowLevelPerf.ForeachOverList100Elements

```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 6.265312980769231 < 8.588168017113096.
IsChangePoint: Marked as a change because one of 11/4/2022 9:11:54 AM, 1/11/2023 2:37:52 AM, 1/17/2023 6:49:05 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 6:49:05 AM.
IsImprovementStdDev: Marked as improvement because 35.57966911402608 (T) = (0 -6357071.632187439) / Math.Sqrt((197855673427.0797 / (299)) + (160998098586.72095 / (30))) is greater than 1.9672451058622664 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (30) - 2, .975) and 0.3029189834630732 = (9119559.249754269 - 6357071.632187439) / 9119559.249754269 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	Windows 10.0.19042
Baseline	71bb0d481086b8b8a89a99a17ec80a861f32dc5d
Compare	5385f045f9aee91c22922d21552c4317198710f1
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
DeserializeFromUtf8Bytes - Duration of single invocation	93.89 ns	85.21 ns	0.91	0.05	False
DeserializeFromUtf8Bytes - Duration of single invocation	90.23 ns	84.13 ns	0.93	0.06	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
IsSuffix_SecondHalf - Duration of single invocation	152.12 ns	141.53 ns	0.93	0.00	False
IsPrefix_FirstHalf - Duration of single invocation	156.29 ns	143.85 ns	0.92	0.00	False
IsPrefix_FirstHalf - Duration of single invocation	156.30 ns	144.06 ns	0.92	0.01	False
LastIndexOf_Word_NotFound - Duration of single invocation	523.03 ns	410.27 ns	0.78	0.01	False
IsPrefix_FirstHalf - Duration of single invocation	154.70 ns	143.69 ns	0.93	0.01	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
GetMethod12 - Duration of single invocation	841.44 μs	781.55 μs	0.93	0.00	False
GetMethod20 - Duration of single invocation	1.41 ms	1.29 ms	0.91	0.01	False
GetMethod10 - Duration of single invocation	706.41 μs	659.09 μs	0.93	0.02	False
GetMethod2 - Duration of single invocation	136.22 μs	125.07 μs	0.92	0.04	False
GetMethod15 - Duration of single invocation	1.05 ms	986.96 μs	0.94	0.01	False

[Perf] Windows/x64: 14 Improvements on 1/11/2023 8:19:46 AM #11699

Description

Run Information

Improvements in System.Text.Json.Serialization.Tests.ReadJson<Int32>

Repro

Payloads

Histogram

System.Text.Json.Serialization.Tests.ReadJson<Int32>.DeserializeFromUtf8Bytes(Mode: SourceGen)

Description of detection logic

Description of detection logic

Docs

Improvements in System.Globalization.Tests.StringSearch

Repro

Payloads

Histogram

System.Globalization.Tests.StringSearch.IsSuffix_SecondHalf(Options: (en-US, IgnoreNonSpace, False))

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Run Information

Improvements in System.Hashing

Repro

Payloads

Histogram

System.Hashing.GetStringHashCode(BytesCount: 1000)

Description of detection logic

Docs

Run Information

Improvements in PerfLabTests.GetMember

Repro

Payloads

Histogram

PerfLabTests.GetMember.GetMethod12

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Run Information

Improvements in PerfLabTests.LowLevelPerf

Repro

Payloads

Histogram

PerfLabTests.LowLevelPerf.ForeachOverList100Elements

Description of detection logic

Docs

Metadata

Metadata

Assignees

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