[Perf] Changes at 7/6/2022 7:05:00 PM

### Run Information

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [9534947f2918c4721e4b1dabfa9402057c6e1246](https://github.com/dotnet/runtime/commit/9534947f2918c4721e4b1dabfa9402057c6e1246)
Compare | [11bfa9b6fac2a6d50f09c3c8057bbccee9908383](https://github.com/dotnet/runtime/commit/11bfa9b6fac2a6d50f09c3c8057bbccee9908383)
Diff | [Diff](https://github.com/dotnet/runtime/compare/9534947f2918c4721e4b1dabfa9402057c6e1246...11bfa9b6fac2a6d50f09c3c8057bbccee9908383)


### 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
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[IterateForEachTenSegments - 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).IterateForEachTenSegments.html>) | 52.63 ns | 47.85 ns | 0.91 | 0.02 | False | | |
[FirstSpanTenSegments - 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).FirstSpanTenSegments.html>) | 17.42 ns | 4.81 ns | 0.28 | 0.02 | False | | |
[FirstSpanSingleSegment - 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).FirstSpanSingleSegment.html>) | 17.04 ns | 5.05 ns | 0.30 | 0.02 | False | | |
[FirstSpanArray - 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).FirstSpanArray.html>) | 23.86 ns | 4.51 ns | 0.19 | 0.03 | False | | |
[IterateTryGetTenSegments - 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).IterateTryGetTenSegments.html>) | 56.50 ns | 43.74 ns | 0.77 | 0.03 | False | | |
[FirstSpanMemory - 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).FirstSpanMemory.html>) | 24.09 ns | 5.29 ns | 0.22 | 0.09 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/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/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Buffers.Tests.ReadOnlySequenceTests(Char)_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Buffers.Tests.ReadOnlySequenceTests(Char)_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Buffers.Tests.ReadOnlySequenceTests(Char)_4.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Buffers.Tests.ReadOnlySequenceTests(Char)_5.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Buffers.Tests.ReadOnlySequenceTests(Char)_6.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/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 net6.0 --filter 'System.Buffers.Tests.ReadOnlySequenceTests&lt;Char&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-b279f01b-9fcf-42f3-af60-d69c40723f354080221e8b4459384/70d86d10-f6d5-4218-a864-ba1a59492a6d.zip?sv=2021-06-08&se=2022-08-05T12%3A49%3A11Z&sr=c&sp=rl&sig=D227Awx7WOcbiM6FfvldLsCIBcppb7Pa0GnLBWl%2BPJ0%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-2a7fe006-b66f-4405-a97a-4664f3dde4af49202913fa7406eb9/2593a5aa-96a7-41dd-971b-966b9d1607de.zip?sv=2021-06-08&se=2022-08-05T23%3A04%3A43Z&sr=c&sp=rl&sig=kAh1%2BM9Dr2EI7HrYPBe8QIY5OgRgzIKjT3qrwAS4XM8%3D>)
### Histogram

#### System.Buffers.Tests.ReadOnlySequenceTests&lt;Char&gt;.IterateForEachTenSegments

```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 47.85022714647945 < 49.88965038934605.
IsChangePoint: Marked as a change because one of 6/14/2022 6:55:13 PM, 7/6/2022 12:32:56 PM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 20.79528296387366 (T) = (0 -47.69524109815917) / Math.Sqrt((3.326649326782174 / (299)) + (0.40974911681378595 / (39))) is greater than 1.9670493839589689 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (39) - 2, .975) and 0.06026257805344075 = (50.75379567130987 - 47.69524109815917) / 50.75379567130987 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Buffers.Tests.ReadOnlySequenceTests&lt;Char&gt;.FirstSpanTenSegments

```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 4.809525537268655 < 10.577835054204689.
IsChangePoint: Marked as a change because one of 7/2/2022 7:35:06 PM, 7/6/2022 3:55:24 AM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 3.564871175321872 (T) = (0 -4.830072368133726) / Math.Sqrt((7.89347299398933 / (299)) + (0.00602970928504505 / (42))) is greater than 1.9669864608404333 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (42) - 2, .975) and 0.1073379774600983 = (5.410863514043831 - 4.830072368133726) / 5.410863514043831 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Buffers.Tests.ReadOnlySequenceTests&lt;Char&gt;.FirstSpanSingleSegment

```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 5.047865548257078 < 10.741854003143859.
IsChangePoint: Marked as a change because one of 7/2/2022 7:35:06 PM, 7/6/2022 3:55:24 AM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 2.6199789960233977 (T) = (0 -5.10966107479831) / Math.Sqrt((8.34546507200745 / (299)) + (0.008957029757272772 / (42))) is greater than 1.9669864608404333 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (42) - 2, .975) and 0.07918125882368733 = (5.549041137315366 - 5.10966107479831) / 5.549041137315366 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Buffers.Tests.ReadOnlySequenceTests&lt;Char&gt;.FirstSpanArray

```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 4.50739577862188 < 13.46105435368254.
IsChangePoint: Marked as a change because one of 7/2/2022 7:35:06 PM, 7/6/2022 3:55:24 AM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 4.899783241451749 (T) = (0 -4.487798583377821) / Math.Sqrt((19.540133638216897 / (299)) + (0.0004936817752485261 / (42))) is greater than 1.9669864608404333 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (42) - 2, .975) and 0.2182202903222841 = (5.740489971564867 - 4.487798583377821) / 5.740489971564867 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Buffers.Tests.ReadOnlySequenceTests&lt;Char&gt;.IterateTryGetTenSegments

```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 43.74208268747402 < 53.684787670237796.
IsChangePoint: Marked as a change because one of 6/14/2022 6:55:13 PM, 7/6/2022 12:32:56 PM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 9.018030282212488 (T) = (0 -44.17334117461784) / Math.Sqrt((51.43181498329463 / (299)) + (0.8164095089120201 / (39))) is greater than 1.9670493839589689 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (39) - 2, .975) and 0.08229488806753751 = (48.13457024511892 - 44.17334117461784) / 48.13457024511892 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Buffers.Tests.ReadOnlySequenceTests&lt;Char&gt;.FirstSpanMemory

```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 5.289433883544825 < 14.036889124813888.
IsChangePoint: Marked as a change because one of 7/2/2022 7:35:06 PM, 7/6/2022 3:55:24 AM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 4.510274785990649 (T) = (0 -5.2854095505170635) / Math.Sqrt((18.349989049347837 / (299)) + (0.0006998500780451758 / (41))) is greater than 1.9670073106672175 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (41) - 2, .975) and 0.1745294230851334 = (6.402904837954224 - 5.2854095505170635) / 6.402904837954224 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 | [9534947f2918c4721e4b1dabfa9402057c6e1246](https://github.com/dotnet/runtime/commit/9534947f2918c4721e4b1dabfa9402057c6e1246)
Compare | [11bfa9b6fac2a6d50f09c3c8057bbccee9908383](https://github.com/dotnet/runtime/commit/11bfa9b6fac2a6d50f09c3c8057bbccee9908383)
Diff | [Diff](https://github.com/dotnet/runtime/compare/9534947f2918c4721e4b1dabfa9402057c6e1246...11bfa9b6fac2a6d50f09c3c8057bbccee9908383)


### Improvements in System.Memory.ReadOnlySequence

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Slice_StartPosition_And_EndPosition - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Memory.ReadOnlySequence.Slice_StartPosition_And_EndPosition(Segment%3a%20Multiple).html>) | 12.25 ns | 10.88 ns | 0.89 | 0.08 | False | | |
[Slice_Repeat_StartPosition_And_EndPosition - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Memory.ReadOnlySequence.Slice_Repeat_StartPosition_And_EndPosition(Segment%3a%20Multiple).html>) | 52.24 ns | 43.99 ns | 0.84 | 0.07 | False | | |
[Slice_StartPosition - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Memory.ReadOnlySequence.Slice_StartPosition(Segment%3a%20Multiple).html>) | 10.76 ns | 9.09 ns | 0.84 | 0.14 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Memory.ReadOnlySequence_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Memory.ReadOnlySequence_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Memory.ReadOnlySequence_3.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Memory.ReadOnlySequence.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Memory.ReadOnlySequence*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-b279f01b-9fcf-42f3-af60-d69c40723f354080221e8b4459384/70d86d10-f6d5-4218-a864-ba1a59492a6d.zip?sv=2021-06-08&se=2022-08-05T12%3A49%3A11Z&sr=c&sp=rl&sig=D227Awx7WOcbiM6FfvldLsCIBcppb7Pa0GnLBWl%2BPJ0%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-2a7fe006-b66f-4405-a97a-4664f3dde4af49202913fa7406eb9/2593a5aa-96a7-41dd-971b-966b9d1607de.zip?sv=2021-06-08&se=2022-08-05T23%3A04%3A43Z&sr=c&sp=rl&sig=kAh1%2BM9Dr2EI7HrYPBe8QIY5OgRgzIKjT3qrwAS4XM8%3D>)
### Histogram

#### System.Memory.ReadOnlySequence.Slice_StartPosition_And_EndPosition(Segment: Multiple)

```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 10.88318230268836 < 11.571529122072073.
IsChangePoint: Marked as a change because one of 5/30/2022 12:57:05 PM, 6/14/2022 6:55:13 PM, 7/6/2022 12:32:56 PM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 8.342216177242427 (T) = (0 -10.654523865781897) / Math.Sqrt((1.1486502132323444 / (299)) + (0.06512927818055393 / (39))) is greater than 1.9670493839589689 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (39) - 2, .975) and 0.054934954231993696 = (11.273852433219036 - 10.654523865781897) / 11.273852433219036 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Memory.ReadOnlySequence.Slice_Repeat_StartPosition_And_EndPosition(Segment: Multiple)

```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 43.98769411223676 < 49.567034982380235.
IsChangePoint: Marked as a change because one of 6/14/2022 6:55:13 PM, 7/6/2022 12:32:56 PM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 12.073880668724026 (T) = (0 -44.20248253432354) / Math.Sqrt((18.629107726614873 / (299)) + (0.2092976384993568 / (39))) is greater than 1.9670493839589689 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (39) - 2, .975) and 0.0663422547655363 = (47.34334691694037 - 44.20248253432354) / 47.34334691694037 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Memory.ReadOnlySequence.Slice_StartPosition(Segment: Multiple)

```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 9.085826238122166 < 10.233667286212563.
IsChangePoint: Marked as a change because one of 5/31/2022 6:06:22 PM, 6/14/2022 6:55:13 PM, 7/6/2022 12:32:56 PM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 8.967535925010301 (T) = (0 -9.322904032308966) / Math.Sqrt((0.9543112230100996 / (299)) + (0.1718964851402751 / (39))) is greater than 1.9670493839589689 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (39) - 2, .975) and 0.0773639296973887 = (10.10463858111594 - 9.322904032308966) / 10.10463858111594 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 | [9534947f2918c4721e4b1dabfa9402057c6e1246](https://github.com/dotnet/runtime/commit/9534947f2918c4721e4b1dabfa9402057c6e1246)
Compare | [11bfa9b6fac2a6d50f09c3c8057bbccee9908383](https://github.com/dotnet/runtime/commit/11bfa9b6fac2a6d50f09c3c8057bbccee9908383)
Diff | [Diff](https://github.com/dotnet/runtime/compare/9534947f2918c4721e4b1dabfa9402057c6e1246...11bfa9b6fac2a6d50f09c3c8057bbccee9908383)


### Improvements in System.Collections.ContainsFalse&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.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Collections.ContainsFalse(String).Stack(Size%3a%20512).html>) | 771.76 μs | 712.96 μs | 0.92 | 0.02 | False | | |
[Span - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Collections.ContainsFalse(String).Span(Size%3a%20512).html>) | 701.94 μs | 654.08 μs | 0.93 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Collections.ContainsFalse(String)_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Collections.ContainsFalse(String)_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Collections.ContainsFalse(String).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.ContainsFalse&lt;String&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-b279f01b-9fcf-42f3-af60-d69c40723f354080221e8b4459384/70d86d10-f6d5-4218-a864-ba1a59492a6d.zip?sv=2021-06-08&se=2022-08-05T12%3A49%3A11Z&sr=c&sp=rl&sig=D227Awx7WOcbiM6FfvldLsCIBcppb7Pa0GnLBWl%2BPJ0%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-2a7fe006-b66f-4405-a97a-4664f3dde4af49202913fa7406eb9/2593a5aa-96a7-41dd-971b-966b9d1607de.zip?sv=2021-06-08&se=2022-08-05T23%3A04%3A43Z&sr=c&sp=rl&sig=kAh1%2BM9Dr2EI7HrYPBe8QIY5OgRgzIKjT3qrwAS4XM8%3D>)
### Histogram

#### System.Collections.ContainsFalse&lt;String&gt;.Stack(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 712.9646075174825 < 732.0537375291419.
IsChangePoint: Marked as a change because one of 5/9/2022 5:23:46 PM, 7/6/2022 12:32:56 PM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 45.01590531986784 (T) = (0 -719463.3639852717) / Math.Sqrt((24935116.682499558 / (299)) + (47070755.05738 / (39))) is greater than 1.9670493839589689 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (39) - 2, .975) and 0.06635743685552348 = (770598.2914512203 - 719463.3639852717) / 770598.2914512203 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.ContainsFalse&lt;String&gt;.Span(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 654.078984375 < 666.8634452219203.
IsChangePoint: Marked as a change because one of 5/9/2022 5:23:46 PM, 7/6/2022 12:32:56 PM, 7/7/2022 8:07:51 AM, 7/10/2022 1:04:01 AM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 82.12501126335444 (T) = (0 -654298.7960412852) / Math.Sqrt((111782469.40797868 / (299)) + (191174.78450194743 / (13))) is greater than 1.9676459287777595 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (13) - 2, .975) and 0.07256263538932001 = (705491.088679554 - 654298.7960412852) / 705491.088679554 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 | [9534947f2918c4721e4b1dabfa9402057c6e1246](https://github.com/dotnet/runtime/commit/9534947f2918c4721e4b1dabfa9402057c6e1246)
Compare | [11bfa9b6fac2a6d50f09c3c8057bbccee9908383](https://github.com/dotnet/runtime/commit/11bfa9b6fac2a6d50f09c3c8057bbccee9908383)
Diff | [Diff](https://github.com/dotnet/runtime/compare/9534947f2918c4721e4b1dabfa9402057c6e1246...11bfa9b6fac2a6d50f09c3c8057bbccee9908383)


### 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
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[IterateTryGetTenSegments - 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).IterateTryGetTenSegments.html>) | 47.57 ns | 37.29 ns | 0.78 | 0.03 | False | | |
[FirstSpanArray - 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).FirstSpanArray.html>) | 21.38 ns | 4.02 ns | 0.19 | 0.01 | False | | |
[FirstSpanMemory - 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).FirstSpanMemory.html>) | 22.08 ns | 4.72 ns | 0.21 | 0.06 | False | | |
[FirstSpanSingleSegment - 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).FirstSpanSingleSegment.html>) | 23.45 ns | 4.33 ns | 0.18 | 0.02 | False | | |
[IterateGetPositionTenSegments - 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).IterateGetPositionTenSegments.html>) | 61.06 ns | 52.16 ns | 0.85 | 0.16 | False | | |
[FirstSpanTenSegments - 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).FirstSpanTenSegments.html>) | 17.72 ns | 3.96 ns | 0.22 | 0.02 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/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/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Buffers.Tests.ReadOnlySequenceTests(Byte)_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Buffers.Tests.ReadOnlySequenceTests(Byte)_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Buffers.Tests.ReadOnlySequenceTests(Byte)_4.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Buffers.Tests.ReadOnlySequenceTests(Byte)_5.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Buffers.Tests.ReadOnlySequenceTests(Byte)_6.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/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 net6.0 --filter 'System.Buffers.Tests.ReadOnlySequenceTests&lt;Byte&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-b279f01b-9fcf-42f3-af60-d69c40723f354080221e8b4459384/70d86d10-f6d5-4218-a864-ba1a59492a6d.zip?sv=2021-06-08&se=2022-08-05T12%3A49%3A11Z&sr=c&sp=rl&sig=D227Awx7WOcbiM6FfvldLsCIBcppb7Pa0GnLBWl%2BPJ0%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-2a7fe006-b66f-4405-a97a-4664f3dde4af49202913fa7406eb9/2593a5aa-96a7-41dd-971b-966b9d1607de.zip?sv=2021-06-08&se=2022-08-05T23%3A04%3A43Z&sr=c&sp=rl&sig=kAh1%2BM9Dr2EI7HrYPBe8QIY5OgRgzIKjT3qrwAS4XM8%3D>)
### Histogram

#### System.Buffers.Tests.ReadOnlySequenceTests&lt;Byte&gt;.IterateTryGetTenSegments

```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 37.28752837533343 < 45.13565955359117.
IsChangePoint: Marked as a change because one of 5/30/2022 12:57:05 PM, 6/14/2022 6:55:13 PM, 7/6/2022 12:32:56 PM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 6.456006996437721 (T) = (0 -37.670964531423245) / Math.Sqrt((44.62432733987978 / (299)) + (0.2386713141214268 / (39))) is greater than 1.9670493839589689 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (39) - 2, .975) and 0.06327688766560523 = (40.21568811037869 - 37.670964531423245) / 40.21568811037869 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Buffers.Tests.ReadOnlySequenceTests&lt;Byte&gt;.FirstSpanArray

```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 4.0211744500890525 < 12.110479312310813.
IsChangePoint: Marked as a change because one of 7/2/2022 7:35:06 PM, 7/6/2022 3:55:24 AM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 4.506504181290078 (T) = (0 -4.028518773795401) / Math.Sqrt((15.58907037526811 / (299)) + (0.00016196350869950214 / (42))) is greater than 1.9669864608404333 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (42) - 2, .975) and 0.20346504193801987 = (5.057554264281183 - 4.028518773795401) / 5.057554264281183 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Buffers.Tests.ReadOnlySequenceTests&lt;Byte&gt;.FirstSpanMemory

```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 4.723696401092939 < 12.785651697441923.
IsChangePoint: Marked as a change because one of 7/2/2022 7:35:06 PM, 7/6/2022 3:55:24 AM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 4.750677751947787 (T) = (0 -4.719691582840211) / Math.Sqrt((15.268488013293709 / (299)) + (0.002182288168434619 / (42))) is greater than 1.9669864608404333 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (42) - 2, .975) and 0.18538605115688195 = (5.79377702719543 - 4.719691582840211) / 5.79377702719543 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Buffers.Tests.ReadOnlySequenceTests&lt;Byte&gt;.FirstSpanSingleSegment

```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 4.329930715408517 < 10.680641833245263.
IsChangePoint: Marked as a change because one of 7/2/2022 7:35:06 PM, 7/6/2022 3:55:24 AM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 4.797603551000855 (T) = (0 -4.365715810966702) / Math.Sqrt((9.158885276543542 / (299)) + (0.01054246269347359 / (42))) is greater than 1.9669864608404333 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (42) - 2, .975) and 0.1618611870727967 = (5.208821908293951 - 4.365715810966702) / 5.208821908293951 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Buffers.Tests.ReadOnlySequenceTests&lt;Byte&gt;.IterateGetPositionTenSegments

```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 52.15516701397933 < 57.83479757780258.
IsChangePoint: Marked as a change because one of 6/14/2022 6:55:13 PM, 7/6/2022 12:32:56 PM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 6.460983363135021 (T) = (0 -53.98717587953612) / Math.Sqrt((11.885179401729124 / (299)) + (6.238065123979034 / (39))) is greater than 1.9670493839589689 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (39) - 2, .975) and 0.05076572820772709 = (56.87444868335989 - 53.98717587953612) / 56.87444868335989 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Buffers.Tests.ReadOnlySequenceTests&lt;Byte&gt;.FirstSpanTenSegments

```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 3.9646123377071527 < 10.487148991837337.
IsChangePoint: Marked as a change because one of 7/2/2022 7:35:06 PM, 7/6/2022 3:55:24 AM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 5.3155518222340215 (T) = (0 -3.993765497848496) / Math.Sqrt((8.821648867682624 / (299)) + (0.008503671059818826 / (42))) is greater than 1.9669864608404333 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (42) - 2, .975) and 0.18659394838628068 = (4.909928429872448 - 3.993765497848496) / 4.909928429872448 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 | [9534947f2918c4721e4b1dabfa9402057c6e1246](https://github.com/dotnet/runtime/commit/9534947f2918c4721e4b1dabfa9402057c6e1246)
Compare | [11bfa9b6fac2a6d50f09c3c8057bbccee9908383](https://github.com/dotnet/runtime/commit/11bfa9b6fac2a6d50f09c3c8057bbccee9908383)
Diff | [Diff](https://github.com/dotnet/runtime/compare/9534947f2918c4721e4b1dabfa9402057c6e1246...11bfa9b6fac2a6d50f09c3c8057bbccee9908383)


### Improvements in System.Text.Tests.Perf_Encoding

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[GetBytes - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Text.Tests.Perf_Encoding.GetBytes(size%3a%20512%2c%20encName%3a%20%22utf-8%22).html>) | 86.84 ns | 75.61 ns | 0.87 | 0.20 | False | | |
[GetBytes - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Text.Tests.Perf_Encoding.GetBytes(size%3a%20512%2c%20encName%3a%20%22ascii%22).html>) | 62.88 ns | 53.64 ns | 0.85 | 0.20 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Text.Tests.Perf_Encoding_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Text.Tests.Perf_Encoding_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Text.Tests.Perf_Encoding.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Text.Tests.Perf_Encoding*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-b279f01b-9fcf-42f3-af60-d69c40723f354080221e8b4459384/70d86d10-f6d5-4218-a864-ba1a59492a6d.zip?sv=2021-06-08&se=2022-08-05T12%3A49%3A11Z&sr=c&sp=rl&sig=D227Awx7WOcbiM6FfvldLsCIBcppb7Pa0GnLBWl%2BPJ0%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-2a7fe006-b66f-4405-a97a-4664f3dde4af49202913fa7406eb9/2593a5aa-96a7-41dd-971b-966b9d1607de.zip?sv=2021-06-08&se=2022-08-05T23%3A04%3A43Z&sr=c&sp=rl&sig=kAh1%2BM9Dr2EI7HrYPBe8QIY5OgRgzIKjT3qrwAS4XM8%3D>)
### Histogram

#### System.Text.Tests.Perf_Encoding.GetBytes(size: 512, encName: "utf-8")

```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 75.61092476091405 < 83.73585615615234.
IsChangePoint: Marked as a change because one of 5/31/2022 6:06:22 PM, 6/30/2022 12:24:00 AM, 7/6/2022 12:32:56 PM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 10.918664756238378 (T) = (0 -75.79356971236683) / Math.Sqrt((41.45518554149039 / (299)) + (1.3115714611469165 / (39))) is greater than 1.9670493839589689 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (39) - 2, .975) and 0.05641943429183503 = (80.3254883227519 - 75.79356971236683) / 80.3254883227519 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.Tests.Perf_Encoding.GetBytes(size: 512, encName: "ascii")

```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 53.64080790930516 < 59.81162860437861.
IsChangePoint: Marked as a change because one of 5/31/2022 6:06:22 PM, 6/30/2022 12:24:00 AM, 7/6/2022 12:32:56 PM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 14.73566300273919 (T) = (0 -53.15099139644068) / Math.Sqrt((27.40228244755266 / (299)) + (1.38031195831952 / (39))) is greater than 1.9670493839589689 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (39) - 2, .975) and 0.08992945810865859 = (58.40315552460403 - 53.15099139644068) / 58.40315552460403 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 | [9534947f2918c4721e4b1dabfa9402057c6e1246](https://github.com/dotnet/runtime/commit/9534947f2918c4721e4b1dabfa9402057c6e1246)
Compare | [11bfa9b6fac2a6d50f09c3c8057bbccee9908383](https://github.com/dotnet/runtime/commit/11bfa9b6fac2a6d50f09c3c8057bbccee9908383)
Diff | [Diff](https://github.com/dotnet/runtime/compare/9534947f2918c4721e4b1dabfa9402057c6e1246...11bfa9b6fac2a6d50f09c3c8057bbccee9908383)


### Improvements in System.Buffers.Tests.RentReturnArrayPoolTests&lt;Byte&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[SingleSerial - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Buffers.Tests.RentReturnArrayPoolTests(Byte).SingleSerial(RentalSize%3a%204096%2c%20ManipulateArray%3a%20False%2c%20Async%3a%20True%2c%20UseSharedPool%3a%20True).html>) | 400.54 ns | 364.00 ns | 0.91 | 0.09 | False | | |
[SingleSerial - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Buffers.Tests.RentReturnArrayPoolTests(Byte).SingleSerial(RentalSize%3a%204096%2c%20ManipulateArray%3a%20False%2c%20Async%3a%20True%2c%20UseSharedPool%3a%20False).html>) | 402.90 ns | 369.40 ns | 0.92 | 0.04 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Buffers.Tests.RentReturnArrayPoolTests(Byte)_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Buffers.Tests.RentReturnArrayPoolTests(Byte)_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Buffers.Tests.RentReturnArrayPoolTests(Byte).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Buffers.Tests.RentReturnArrayPoolTests&lt;Byte&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-b279f01b-9fcf-42f3-af60-d69c40723f354080221e8b4459384/70d86d10-f6d5-4218-a864-ba1a59492a6d.zip?sv=2021-06-08&se=2022-08-05T12%3A49%3A11Z&sr=c&sp=rl&sig=D227Awx7WOcbiM6FfvldLsCIBcppb7Pa0GnLBWl%2BPJ0%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-2a7fe006-b66f-4405-a97a-4664f3dde4af49202913fa7406eb9/2593a5aa-96a7-41dd-971b-966b9d1607de.zip?sv=2021-06-08&se=2022-08-05T23%3A04%3A43Z&sr=c&sp=rl&sig=kAh1%2BM9Dr2EI7HrYPBe8QIY5OgRgzIKjT3qrwAS4XM8%3D>)
### Histogram

#### System.Buffers.Tests.RentReturnArrayPoolTests&lt;Byte&gt;.SingleSerial(RentalSize: 4096, ManipulateArray: False, Async: True, UseSharedPool: True)

```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 364.0000363333333 < 381.5155381666667.
IsChangePoint: Marked as a change because one of 6/9/2022 8:09:33 PM, 7/6/2022 12:32:56 PM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 14.209724526363214 (T) = (0 -363.33495390089035) / Math.Sqrt((442.1831769227245 / (299)) + (59.18543055296298 / (39))) is greater than 1.9670493839589689 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (39) - 2, .975) and 0.06340639827764075 = (387.9323467859822 - 363.33495390089035) / 387.9323467859822 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Buffers.Tests.RentReturnArrayPoolTests&lt;Byte&gt;.SingleSerial(RentalSize: 4096, ManipulateArray: False, Async: True, UseSharedPool: 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 369.39764600000007 < 385.3226867055556.
IsChangePoint: Marked as a change because one of 6/9/2022 8:09:33 PM, 7/6/2022 12:32:56 PM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 17.621380214510793 (T) = (0 -370.6682031287842) / Math.Sqrt((325.4210207206278 / (299)) + (15.484404157892575 / (39))) is greater than 1.9670493839589689 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (39) - 2, .975) and 0.05476656054930557 = (392.1446149262255 - 370.6682031287842) / 392.1446149262255 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 | [9534947f2918c4721e4b1dabfa9402057c6e1246](https://github.com/dotnet/runtime/commit/9534947f2918c4721e4b1dabfa9402057c6e1246)
Compare | [11bfa9b6fac2a6d50f09c3c8057bbccee9908383](https://github.com/dotnet/runtime/commit/11bfa9b6fac2a6d50f09c3c8057bbccee9908383)
Diff | [Diff](https://github.com/dotnet/runtime/compare/9534947f2918c4721e4b1dabfa9402057c6e1246...11bfa9b6fac2a6d50f09c3c8057bbccee9908383)


### Improvements in System.IO.Tests.BinaryWriterExtendedTests

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[WriteAsciiCharArray - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.IO.Tests.BinaryWriterExtendedTests.WriteAsciiCharArray(StringLengthInChars%3a%208000).html>) | 503.91 ns | 330.61 ns | 0.66 | 0.05 | False | | |
[WriteAsciiString - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.IO.Tests.BinaryWriterExtendedTests.WriteAsciiString(StringLengthInChars%3a%208000).html>) | 510.83 ns | 341.73 ns | 0.67 | 0.06 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.IO.Tests.BinaryWriterExtendedTests_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.IO.Tests.BinaryWriterExtendedTests_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.IO.Tests.BinaryWriterExtendedTests.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.IO.Tests.BinaryWriterExtendedTests*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-b279f01b-9fcf-42f3-af60-d69c40723f354080221e8b4459384/70d86d10-f6d5-4218-a864-ba1a59492a6d.zip?sv=2021-06-08&se=2022-08-05T12%3A49%3A11Z&sr=c&sp=rl&sig=D227Awx7WOcbiM6FfvldLsCIBcppb7Pa0GnLBWl%2BPJ0%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-2a7fe006-b66f-4405-a97a-4664f3dde4af49202913fa7406eb9/2593a5aa-96a7-41dd-971b-966b9d1607de.zip?sv=2021-06-08&se=2022-08-05T23%3A04%3A43Z&sr=c&sp=rl&sig=kAh1%2BM9Dr2EI7HrYPBe8QIY5OgRgzIKjT3qrwAS4XM8%3D>)
### Histogram

#### System.IO.Tests.BinaryWriterExtendedTests.WriteAsciiCharArray(StringLengthInChars: 8000)

```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 330.6084216169165 < 468.6155509110307.
IsChangePoint: Marked as a change because one of 5/31/2022 6:06:22 PM, 6/30/2022 12:24:00 AM, 7/6/2022 12:32:56 PM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 16.219090745405545 (T) = (0 -323.06653921130726) / Math.Sqrt((7222.378701508694 / (299)) + (34.06836994758239 / (39))) is greater than 1.9670493839589689 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (39) - 2, .975) and 0.2007427664260866 = (404.20846460994943 - 323.06653921130726) / 404.20846460994943 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.IO.Tests.BinaryWriterExtendedTests.WriteAsciiString(StringLengthInChars: 8000)

```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 341.73327005741896 < 473.12778072319463.
IsChangePoint: Marked as a change because one of 5/31/2022 6:06:22 PM, 6/30/2022 12:24:00 AM, 7/6/2022 12:32:56 PM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 15.43810353167217 (T) = (0 -335.1713631608047) / Math.Sqrt((7431.694602816673 / (299)) + (40.16465864537622 / (39))) is greater than 1.9670493839589689 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (39) - 2, .975) and 0.1898521977743595 = (413.7163147761691 - 335.1713631608047) / 413.7163147761691 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	9534947f2918c4721e4b1dabfa9402057c6e1246
Compare	11bfa9b6fac2a6d50f09c3c8057bbccee9908383
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
IterateForEachTenSegments - Duration of single invocation	52.63 ns	47.85 ns	0.91	0.02	False
FirstSpanTenSegments - Duration of single invocation	17.42 ns	4.81 ns	0.28	0.02	False
FirstSpanSingleSegment - Duration of single invocation	17.04 ns	5.05 ns	0.30	0.02	False
FirstSpanArray - Duration of single invocation	23.86 ns	4.51 ns	0.19	0.03	False
IterateTryGetTenSegments - Duration of single invocation	56.50 ns	43.74 ns	0.77	0.03	False
FirstSpanMemory - Duration of single invocation	24.09 ns	5.29 ns	0.22	0.09	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
Slice_StartPosition_And_EndPosition - Duration of single invocation	12.25 ns	10.88 ns	0.89	0.08	False
Slice_Repeat_StartPosition_And_EndPosition - Duration of single invocation	52.24 ns	43.99 ns	0.84	0.07	False
Slice_StartPosition - Duration of single invocation	10.76 ns	9.09 ns	0.84	0.14	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Stack - Duration of single invocation	771.76 μs	712.96 μs	0.92	0.02	False
Span - Duration of single invocation	701.94 μs	654.08 μs	0.93	0.01	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
IterateTryGetTenSegments - Duration of single invocation	47.57 ns	37.29 ns	0.78	0.03	False
FirstSpanArray - Duration of single invocation	21.38 ns	4.02 ns	0.19	0.01	False
FirstSpanMemory - Duration of single invocation	22.08 ns	4.72 ns	0.21	0.06	False
FirstSpanSingleSegment - Duration of single invocation	23.45 ns	4.33 ns	0.18	0.02	False
IterateGetPositionTenSegments - Duration of single invocation	61.06 ns	52.16 ns	0.85	0.16	False
FirstSpanTenSegments - Duration of single invocation	17.72 ns	3.96 ns	0.22	0.02	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
GetBytes - Duration of single invocation	86.84 ns	75.61 ns	0.87	0.20	False
GetBytes - Duration of single invocation	62.88 ns	53.64 ns	0.85	0.20	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
SingleSerial - Duration of single invocation	400.54 ns	364.00 ns	0.91	0.09	False
SingleSerial - Duration of single invocation	402.90 ns	369.40 ns	0.92	0.04	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
WriteAsciiCharArray - Duration of single invocation	503.91 ns	330.61 ns	0.66	0.05	False
WriteAsciiString - Duration of single invocation	510.83 ns	341.73 ns	0.67	0.06	False

[Perf] Changes at 7/6/2022 7:05:00 PM #6723

Description

Run Information

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

Repro

Payloads

Histogram

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

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Improvements in System.Memory.ReadOnlySequence

Repro

Payloads

Histogram

System.Memory.ReadOnlySequence.Slice_StartPosition_And_EndPosition(Segment: Multiple)

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Run Information

Improvements in System.Collections.ContainsFalse<String>

Repro

Payloads

Histogram

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

Description of detection logic

Description of detection logic

Docs

Run Information

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

Repro

Payloads

Histogram

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

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

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Improvements in System.Text.Tests.Perf_Encoding

Repro

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System.Text.Tests.Perf_Encoding.GetBytes(size: 512, encName: "utf-8")

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Description of detection logic

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

Repro

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

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Description of detection logic

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Improvements in System.IO.Tests.BinaryWriterExtendedTests

Repro

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System.IO.Tests.BinaryWriterExtendedTests.WriteAsciiCharArray(StringLengthInChars: 8000)

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Description of detection logic

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