[Perf] Changes at 4/26/2022 10:28:11 AM

### Run Information

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [b42adaddff9047e32c9d7f4145746dbb579758f2](https://github.com/dotnet/runtime/commit/b42adaddff9047e32c9d7f4145746dbb579758f2)
Compare | [b44c00892a9871a9f124c9173102a9a177a728d9](https://github.com/dotnet/runtime/commit/b44c00892a9871a9f124c9173102a9a177a728d9)
Diff | [Diff](https://github.com/dotnet/runtime/compare/b42adaddff9047e32c9d7f4145746dbb579758f2...b44c00892a9871a9f124c9173102a9a177a728d9)


### Improvements in System.Tests.Perf_Array

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Reverse - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Tests.Perf_Array.Reverse.html>) | 60.62 ns | 13.59 ns | 0.22 | 0.01 | True | | |

[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_03_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Tests.Perf_Array.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_Array*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-2097c0c5-ef6c-4894-862f-1799b9cf9302abbd2ba66734fddbb/8da9d136-dc1c-43cb-b9d9-d71b7fe98d9a.zip?sv=2019-07-07&se=2022-05-26T01%3A58%3A07Z&sr=c&sp=rl&sig=bicArg6E83%2F1xbY%2FnuimqBSm1lfG%2FbHnd1XpbhDE1%2FE%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-bfbbda7a-7bf9-45f0-b967-d38a174c6b55854217e49c04eafbf/3cc8801e-c246-4186-9f78-ffa285f5295b.zip?sv=2019-07-07&se=2022-05-26T14%3A32%3A03Z&sr=c&sp=rl&sig=u0zEz4TSVwUcr%2BLDxrRSg%2B4IwbWt7bPnPz0DNImAwXY%3D>)
### Histogram

#### System.Tests.Perf_Array.Reverse

```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 13.588373578353195 < 57.59283846718311.
IsChangePoint: Marked as a change because one of 4/26/2022 6:18:08 AM, 5/3/2022 11:42:39 AM falls between 4/24/2022 10:52:31 PM and 5/3/2022 11:42:39 AM.
IsImprovementStdDev: Marked as improvement because 211.35710046172974 (T) = (0 -13.961004031469955) / Math.Sqrt((0.030195899254679248 / (299)) + (1.8019876341862708 / (37))) is greater than 1.9670919629190173 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (37) - 2, .975) and 0.7698214031173215 = (60.65292003924174 - 13.961004031469955) / 60.65292003924174 is greater than 0.05.
IsChangeEdgeDetector: Marked as 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 | [b42adaddff9047e32c9d7f4145746dbb579758f2](https://github.com/dotnet/runtime/commit/b42adaddff9047e32c9d7f4145746dbb579758f2)
Compare | [b44c00892a9871a9f124c9173102a9a177a728d9](https://github.com/dotnet/runtime/commit/b44c00892a9871a9f124c9173102a9a177a728d9)
Diff | [Diff](https://github.com/dotnet/runtime/compare/b42adaddff9047e32c9d7f4145746dbb579758f2...b44c00892a9871a9f124c9173102a9a177a728d9)


### Improvements in System.Memory.Span&lt;Byte&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Reverse - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Memory.Span(Byte).Reverse(Size%3a%20512).html>) | 116.36 ns | 8.84 ns | 0.08 | 0.01 | True | | |

[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_03_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Memory.Span(Byte).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;Byte&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-2097c0c5-ef6c-4894-862f-1799b9cf9302abbd2ba66734fddbb/8da9d136-dc1c-43cb-b9d9-d71b7fe98d9a.zip?sv=2019-07-07&se=2022-05-26T01%3A58%3A07Z&sr=c&sp=rl&sig=bicArg6E83%2F1xbY%2FnuimqBSm1lfG%2FbHnd1XpbhDE1%2FE%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-bfbbda7a-7bf9-45f0-b967-d38a174c6b55854217e49c04eafbf/3cc8801e-c246-4186-9f78-ffa285f5295b.zip?sv=2019-07-07&se=2022-05-26T14%3A32%3A03Z&sr=c&sp=rl&sig=u0zEz4TSVwUcr%2BLDxrRSg%2B4IwbWt7bPnPz0DNImAwXY%3D>)
### Histogram

#### System.Memory.Span&lt;Byte&gt;.Reverse(Size: 512)

```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 8.843603372582962 < 110.38904622441238.
IsChangePoint: Marked as a change because one of 4/26/2022 6:18:08 AM, 5/3/2022 11:42:39 AM falls between 4/24/2022 10:52:31 PM and 5/3/2022 11:42:39 AM.
IsImprovementStdDev: Marked as improvement because 3149.0823480166027 (T) = (0 -8.876858719349531) / Math.Sqrt((0.20922724086175903 / (299)) + (0.017247460684431254 / (37))) is greater than 1.9670919629190173 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (37) - 2, .975) and 0.9237405194266961 = (116.40334621498901 - 8.876858719349531) / 116.40334621498901 is greater than 0.05.
IsChangeEdgeDetector: Marked as 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 | [b42adaddff9047e32c9d7f4145746dbb579758f2](https://github.com/dotnet/runtime/commit/b42adaddff9047e32c9d7f4145746dbb579758f2)
Compare | [b44c00892a9871a9f124c9173102a9a177a728d9](https://github.com/dotnet/runtime/commit/b44c00892a9871a9f124c9173102a9a177a728d9)
Diff | [Diff](https://github.com/dotnet/runtime/compare/b42adaddff9047e32c9d7f4145746dbb579758f2...b44c00892a9871a9f124c9173102a9a177a728d9)


### Improvements in System.Memory.Span&lt;Char&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Reverse - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Memory.Span(Char).Reverse(Size%3a%20512).html>) | 116.47 ns | 15.90 ns | 0.14 | 0.03 | True | | |

[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_03_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Memory.Span(Char).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;Char&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-2097c0c5-ef6c-4894-862f-1799b9cf9302abbd2ba66734fddbb/8da9d136-dc1c-43cb-b9d9-d71b7fe98d9a.zip?sv=2019-07-07&se=2022-05-26T01%3A58%3A07Z&sr=c&sp=rl&sig=bicArg6E83%2F1xbY%2FnuimqBSm1lfG%2FbHnd1XpbhDE1%2FE%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-bfbbda7a-7bf9-45f0-b967-d38a174c6b55854217e49c04eafbf/3cc8801e-c246-4186-9f78-ffa285f5295b.zip?sv=2019-07-07&se=2022-05-26T14%3A32%3A03Z&sr=c&sp=rl&sig=u0zEz4TSVwUcr%2BLDxrRSg%2B4IwbWt7bPnPz0DNImAwXY%3D>)
### Histogram

#### System.Memory.Span&lt;Char&gt;.Reverse(Size: 512)

```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 15.901081020647991 < 110.22361205693426.
IsChangePoint: Marked as a change because one of 4/26/2022 6:18:08 AM, 5/3/2022 11:42:39 AM falls between 4/24/2022 10:52:31 PM and 5/3/2022 11:42:39 AM.
IsImprovementStdDev: Marked as improvement because 529.0353795639775 (T) = (0 -16.287151806904355) / Math.Sqrt((0.144922782076025 / (299)) + (1.2674462869697622 / (36))) is greater than 1.9671134448822736 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (36) - 2, .975) and 0.8598756868799635 = (116.23358890581736 - 16.287151806904355) / 116.23358890581736 is greater than 0.05.
IsChangeEdgeDetector: Marked as 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 | [b42adaddff9047e32c9d7f4145746dbb579758f2](https://github.com/dotnet/runtime/commit/b42adaddff9047e32c9d7f4145746dbb579758f2)
Compare | [b44c00892a9871a9f124c9173102a9a177a728d9](https://github.com/dotnet/runtime/commit/b44c00892a9871a9f124c9173102a9a177a728d9)
Diff | [Diff](https://github.com/dotnet/runtime/compare/b42adaddff9047e32c9d7f4145746dbb579758f2...b44c00892a9871a9f124c9173102a9a177a728d9)


### Improvements 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
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Reverse - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Memory.Span(Int32).Reverse(Size%3a%20512).html>) | 116.02 ns | 26.15 ns | 0.23 | 0.01 | True | | |

[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_03_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/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://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-2097c0c5-ef6c-4894-862f-1799b9cf9302abbd2ba66734fddbb/8da9d136-dc1c-43cb-b9d9-d71b7fe98d9a.zip?sv=2019-07-07&se=2022-05-26T01%3A58%3A07Z&sr=c&sp=rl&sig=bicArg6E83%2F1xbY%2FnuimqBSm1lfG%2FbHnd1XpbhDE1%2FE%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-bfbbda7a-7bf9-45f0-b967-d38a174c6b55854217e49c04eafbf/3cc8801e-c246-4186-9f78-ffa285f5295b.zip?sv=2019-07-07&se=2022-05-26T14%3A32%3A03Z&sr=c&sp=rl&sig=u0zEz4TSVwUcr%2BLDxrRSg%2B4IwbWt7bPnPz0DNImAwXY%3D>)
### Histogram

#### System.Memory.Span&lt;Int32&gt;.Reverse(Size: 512)

```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 26.151652588617868 < 110.34029515614532.
IsChangePoint: Marked as a change because one of 4/26/2022 6:18:08 AM, 5/3/2022 11:42:39 AM falls between 4/24/2022 10:52:31 PM and 5/3/2022 11:42:39 AM.
IsImprovementStdDev: Marked as improvement because 714.3969435401102 (T) = (0 -26.321571215415368) / Math.Sqrt((0.1316904291618416 / (299)) + (0.5699595679005893 / (37))) is greater than 1.9670919629190173 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (37) - 2, .975) and 0.7735719381082123 = (116.24694834863148 - 26.321571215415368) / 116.24694834863148 is greater than 0.05.
IsChangeEdgeDetector: Marked as 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	b42adaddff9047e32c9d7f4145746dbb579758f2
Compare	b44c00892a9871a9f124c9173102a9a177a728d9
Diff	Diff

[Perf] Changes at 4/26/2022 10:28:11 AM #5091

Description

Run Information

Improvements in System.Tests.Perf_Array

Repro

Payloads

Histogram

System.Tests.Perf_Array.Reverse

Description of detection logic

Docs

Improvements in System.Memory.Span<Byte>

Repro

Payloads

Histogram

System.Memory.Span<Byte>.Reverse(Size: 512)

Description of detection logic

Docs

Run Information

Improvements in System.Memory.Span<Char>

Repro

Payloads

Histogram

System.Memory.Span<Char>.Reverse(Size: 512)

Description of detection logic

Docs

Run Information

Improvements in System.Memory.Span<Int32>

Repro

Payloads

Histogram

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

Description of detection logic

Docs

Metadata

Metadata

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