[Perf] Changes at 2/8/2022 9:06:59 PM

### Run Information

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [75589aeb707aad7247a7215ff42bb92d94eb6e22](https://github.com/dotnet/runtime/commit/75589aeb707aad7247a7215ff42bb92d94eb6e22)
Compare | [205f70e04b5f57b54a97967c1e2c3f198519540d](https://github.com/dotnet/runtime/commit/205f70e04b5f57b54a97967c1e2c3f198519540d)
Diff | [Diff](https://github.com/dotnet/runtime/compare/75589aeb707aad7247a7215ff42bb92d94eb6e22...205f70e04b5f57b54a97967c1e2c3f198519540d)


### Improvements in System.Tests.Perf_Double

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Parse - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Tests.Perf_Double.Parse(value%3a%20%221.7976931348623157e%2b308%22).html>) | 298.53 ns | 105.31 ns | 0.35 | 0.01 | True | | |
[TryParse - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Tests.Perf_Double.TryParse(value%3a%20%22-1.7976931348623157e%2b308%22).html>) | 306.85 ns | 108.50 ns | 0.35 | 0.00 | True | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_15_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Tests.Perf_Double_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_15_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Tests.Perf_Double_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_15_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Tests.Perf_Double.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_Double*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-a324640b-6f7d-4dad-9fd8-b5f2f279a540ed416e4bcea43f79b/b2854105-405c-40f2-822d-bf37d84df790.zip?sv=2019-07-07&se=2022-03-10T16%3A36%3A54Z&sr=c&sp=rl&sig=8dj2TvIK5quwk%2FZiBj0PDrsfriAjcJgfDBi6Fk%2FPs9U%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-025da74f-6190-4c1c-afc0-f7bc38f894688f310325e8a4a2295/01188c6b-54c3-43aa-be22-0bde67b4fcf2.zip?sv=2019-07-07&se=2022-03-11T02%3A03%3A12Z&sr=c&sp=rl&sig=b6BFJdSv0BKgSWC1CEqw%2B5HB1lh1V%2F8NtjhNItDaSuQ%3D>)
### Histogram

#### System.Tests.Perf_Double.Parse(value: "1.7976931348623157e+308")

```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 105.31192177898758 < 284.35895249408327.
IsChangePoint: Marked as a change because one of 2/8/2022 5:20:12 PM, 2/15/2022 5:17:31 AM falls between 2/6/2022 2:48:36 PM and 2/15/2022 5:17:31 AM.
IsImprovementStdDev: Marked as improvement because 662.1976453764302 (T) = (0 -106.23664456578346) / Math.Sqrt((16.968903039471314 / (299)) + (0.6689632359725259 / (26))) is greater than 1.967335607330539 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (26) - 2, .975) and 0.6415975174335248 = (296.417155944446 - 106.23664456578346) / 296.417155944446 is greater than 0.05.
IsChangeEdgeDetector: Marked as regression because Edge Detector said so.

```#### System.Tests.Perf_Double.TryParse(value: "-1.7976931348623157e+308")

```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 108.50413388900739 < 290.468315734174.
IsChangePoint: Marked as a change because one of 2/8/2022 5:20:12 PM, 2/15/2022 5:17:31 AM falls between 2/6/2022 2:48:36 PM and 2/15/2022 5:17:31 AM.
IsImprovementStdDev: Marked as improvement because 545.5482291337471 (T) = (0 -107.84369387179426) / Math.Sqrt((20.69160196559321 / (189)) + (0.27129803399050184 / (26))) is greater than 1.971163885465162 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (189) + (26) - 2, .975) and 0.6365954592531325 = (296.7593460724358 - 107.84369387179426) / 296.7593460724358 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 | [75589aeb707aad7247a7215ff42bb92d94eb6e22](https://github.com/dotnet/runtime/commit/75589aeb707aad7247a7215ff42bb92d94eb6e22)
Compare | [205f70e04b5f57b54a97967c1e2c3f198519540d](https://github.com/dotnet/runtime/commit/205f70e04b5f57b54a97967c1e2c3f198519540d)
Diff | [Diff](https://github.com/dotnet/runtime/compare/75589aeb707aad7247a7215ff42bb92d94eb6e22...205f70e04b5f57b54a97967c1e2c3f198519540d)


### Improvements in System.IO.Tests.Perf_StreamWriter

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[WritePartialCharArray - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.IO.Tests.Perf_StreamWriter.WritePartialCharArray(writeLength%3a%202).html>) | 114.31 ms | 89.81 ms | 0.79 | 0.05 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_15_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.IO.Tests.Perf_StreamWriter_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_15_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.IO.Tests.Perf_StreamWriter.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.IO.Tests.Perf_StreamWriter*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-a324640b-6f7d-4dad-9fd8-b5f2f279a540ed416e4bcea43f79b/b2854105-405c-40f2-822d-bf37d84df790.zip?sv=2019-07-07&se=2022-03-10T16%3A36%3A54Z&sr=c&sp=rl&sig=8dj2TvIK5quwk%2FZiBj0PDrsfriAjcJgfDBi6Fk%2FPs9U%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-025da74f-6190-4c1c-afc0-f7bc38f894688f310325e8a4a2295/01188c6b-54c3-43aa-be22-0bde67b4fcf2.zip?sv=2019-07-07&se=2022-03-11T02%3A03%3A12Z&sr=c&sp=rl&sig=b6BFJdSv0BKgSWC1CEqw%2B5HB1lh1V%2F8NtjhNItDaSuQ%3D>)
### Histogram

#### System.IO.Tests.Perf_StreamWriter.WritePartialCharArray(writeLength: 2)

```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 89.80775440000001 < 106.30712238708334.
IsChangePoint: Marked as a change because one of 2/3/2022 10:14:29 PM, 2/8/2022 5:20:12 PM, 2/15/2022 5:17:31 AM falls between 2/6/2022 2:48:36 PM and 2/15/2022 5:17:31 AM.
IsImprovementStdDev: Marked as improvement because 40.59909458700451 (T) = (0 -89478174.12435545) / Math.Sqrt((14291641554714.633 / (299)) + (957361075625.5273 / (26))) is greater than 1.967335607330539 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (26) - 2, .975) and 0.11659854166382454 = (101288234.56198646 - 89478174.12435545) / 101288234.56198646 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 | [75589aeb707aad7247a7215ff42bb92d94eb6e22](https://github.com/dotnet/runtime/commit/75589aeb707aad7247a7215ff42bb92d94eb6e22)
Compare | [205f70e04b5f57b54a97967c1e2c3f198519540d](https://github.com/dotnet/runtime/commit/205f70e04b5f57b54a97967c1e2c3f198519540d)
Diff | [Diff](https://github.com/dotnet/runtime/compare/75589aeb707aad7247a7215ff42bb92d94eb6e22...205f70e04b5f57b54a97967c1e2c3f198519540d)


### Improvements in System.Threading.Tests.Perf_CancellationToken

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[CreateLinkedTokenSource2 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Threading.Tests.Perf_CancellationToken.CreateLinkedTokenSource2.html>) | 65.59 ns | 59.75 ns | 0.91 | 0.03 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_15_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Threading.Tests.Perf_CancellationToken_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_15_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Threading.Tests.Perf_CancellationToken.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Threading.Tests.Perf_CancellationToken*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-a324640b-6f7d-4dad-9fd8-b5f2f279a540ed416e4bcea43f79b/b2854105-405c-40f2-822d-bf37d84df790.zip?sv=2019-07-07&se=2022-03-10T16%3A36%3A54Z&sr=c&sp=rl&sig=8dj2TvIK5quwk%2FZiBj0PDrsfriAjcJgfDBi6Fk%2FPs9U%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-025da74f-6190-4c1c-afc0-f7bc38f894688f310325e8a4a2295/01188c6b-54c3-43aa-be22-0bde67b4fcf2.zip?sv=2019-07-07&se=2022-03-11T02%3A03%3A12Z&sr=c&sp=rl&sig=b6BFJdSv0BKgSWC1CEqw%2B5HB1lh1V%2F8NtjhNItDaSuQ%3D>)
### Histogram

#### System.Threading.Tests.Perf_CancellationToken.CreateLinkedTokenSource2

```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 59.74737834063577 < 62.425235025047606.
IsChangePoint: Marked as a change because one of 2/8/2022 5:20:12 PM, 2/15/2022 5:17:31 AM falls between 2/6/2022 2:48:36 PM and 2/15/2022 5:17:31 AM.
IsImprovementStdDev: Marked as improvement because 32.70998784700469 (T) = (0 -60.45420314356094) / Math.Sqrt((1.3737078843850912 / (299)) + (0.8555414797249012 / (26))) is greater than 1.967335607330539 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (26) - 2, .975) and 0.09484040784765856 = (66.7884466647582 - 60.45420314356094) / 66.7884466647582 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 | [75589aeb707aad7247a7215ff42bb92d94eb6e22](https://github.com/dotnet/runtime/commit/75589aeb707aad7247a7215ff42bb92d94eb6e22)
Compare | [205f70e04b5f57b54a97967c1e2c3f198519540d](https://github.com/dotnet/runtime/commit/205f70e04b5f57b54a97967c1e2c3f198519540d)
Diff | [Diff](https://github.com/dotnet/runtime/compare/75589aeb707aad7247a7215ff42bb92d94eb6e22...205f70e04b5f57b54a97967c1e2c3f198519540d)


### Improvements in System.Buffers.Text.Tests.Utf8ParserTests

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[TryParseSingle - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Buffers.Text.Tests.Utf8ParserTests.TryParseSingle(value%3a%203.4028235E%2b38).html>) | 110.05 ns | 58.59 ns | 0.53 | 0.02 | True | | |
[TryParseDouble - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Buffers.Text.Tests.Utf8ParserTests.TryParseDouble(value%3a%20-1.7976931348623157e%2b308).html>) | 262.91 ns | 73.90 ns | 0.28 | 0.02 | True | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_15_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Buffers.Text.Tests.Utf8ParserTests_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_15_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Buffers.Text.Tests.Utf8ParserTests_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_15_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Buffers.Text.Tests.Utf8ParserTests.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Buffers.Text.Tests.Utf8ParserTests*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-a324640b-6f7d-4dad-9fd8-b5f2f279a540ed416e4bcea43f79b/b2854105-405c-40f2-822d-bf37d84df790.zip?sv=2019-07-07&se=2022-03-10T16%3A36%3A54Z&sr=c&sp=rl&sig=8dj2TvIK5quwk%2FZiBj0PDrsfriAjcJgfDBi6Fk%2FPs9U%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-025da74f-6190-4c1c-afc0-f7bc38f894688f310325e8a4a2295/01188c6b-54c3-43aa-be22-0bde67b4fcf2.zip?sv=2019-07-07&se=2022-03-11T02%3A03%3A12Z&sr=c&sp=rl&sig=b6BFJdSv0BKgSWC1CEqw%2B5HB1lh1V%2F8NtjhNItDaSuQ%3D>)
### Histogram

#### System.Buffers.Text.Tests.Utf8ParserTests.TryParseSingle(value: 3.4028235E+38)

```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 58.59341631134521 < 105.27264513827608.
IsChangePoint: Marked as a change because one of 2/8/2022 5:20:12 PM, 2/15/2022 5:17:31 AM falls between 2/6/2022 2:48:36 PM and 2/15/2022 5:17:31 AM.
IsImprovementStdDev: Marked as improvement because 468.75334950533124 (T) = (0 -58.736844070929706) / Math.Sqrt((3.5620520116527943 / (299)) + (0.044088413215427245 / (26))) is greater than 1.967335607330539 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (26) - 2, .975) and 0.48213131865157605 = (113.42034416522543 - 58.736844070929706) / 113.42034416522543 is greater than 0.05.
IsChangeEdgeDetector: Marked as regression because Edge Detector said so.

```#### System.Buffers.Text.Tests.Utf8ParserTests.TryParseDouble(value: -1.7976931348623157e+308)

```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 73.8998664043469 < 251.3822589367363.
IsChangePoint: Marked as a change because one of 2/8/2022 5:20:12 PM, 2/15/2022 5:17:31 AM falls between 2/6/2022 2:48:36 PM and 2/15/2022 5:17:31 AM.
IsImprovementStdDev: Marked as improvement because 731.5443395322558 (T) = (0 -72.37170628583785) / Math.Sqrt((10.474015373478244 / (299)) + (0.9299225633190419 / (26))) is greater than 1.967335607330539 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (26) - 2, .975) and 0.7289632449971537 = (267.01805179551314 - 72.37170628583785) / 267.01805179551314 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	75589aeb707aad7247a7215ff42bb92d94eb6e22
Compare	205f70e04b5f57b54a97967c1e2c3f198519540d
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Parse - Duration of single invocation	298.53 ns	105.31 ns	0.35	0.01	True
TryParse - Duration of single invocation	306.85 ns	108.50 ns	0.35	0.00	True

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
TryParseSingle - Duration of single invocation	110.05 ns	58.59 ns	0.53	0.02	True
TryParseDouble - Duration of single invocation	262.91 ns	73.90 ns	0.28	0.02	True

[Perf] Changes at 2/8/2022 9:06:59 PM #3531

Description

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Improvements in System.Tests.Perf_Double

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System.Tests.Perf_Double.Parse(value: "1.7976931348623157e+308")

Description of detection logic

Description of detection logic

Docs

Improvements in System.IO.Tests.Perf_StreamWriter

Repro

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System.IO.Tests.Perf_StreamWriter.WritePartialCharArray(writeLength: 2)

Description of detection logic

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Improvements in System.Threading.Tests.Perf_CancellationToken

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System.Threading.Tests.Perf_CancellationToken.CreateLinkedTokenSource2

Description of detection logic

Docs

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Improvements in System.Buffers.Text.Tests.Utf8ParserTests

Repro

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Histogram

System.Buffers.Text.Tests.Utf8ParserTests.TryParseSingle(value: 3.4028235E+38)

Description of detection logic

Description of detection logic

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