Regressions in System.IO.Tests.StreamReaderReadLineTests

### Run Information

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [bfa4812aec806f09f1e2927939ba98118e5e5bf7](https://github.com/dotnet/runtime/commit/bfa4812aec806f09f1e2927939ba98118e5e5bf7)
Compare | [2aebbf75167b3aa21cae23e6fd702688dd724663](https://github.com/dotnet/runtime/commit/2aebbf75167b3aa21cae23e6fd702688dd724663)
Diff | [Diff](https://github.com/dotnet/runtime/compare/bfa4812aec806f09f1e2927939ba98118e5e5bf7...2aebbf75167b3aa21cae23e6fd702688dd724663)


### Regressions 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
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[TryParseInt64 - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Buffers.Text.Tests.Utf8ParserTests.TryParseInt64(value%3a%209223372036854775807).html>) | 15.74 ns | 22.19 ns | 1.41 | 0.03 | False | | |
[TryParseInt64 - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Buffers.Text.Tests.Utf8ParserTests.TryParseInt64(value%3a%20-9223372036854775808).html>) | 16.40 ns | 22.76 ns | 1.39 | 0.03 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Buffers.Text.Tests.Utf8ParserTests_1.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Buffers.Text.Tests.Utf8ParserTests_2.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/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*'
```

### Related Issues

#### Regressions

#### Improvements

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-7cad1ec5-9416-4971-817f-f56a42c52ca546b09f26c9f4122b4/8fe0fdda-d537-46fa-8866-3c49810bbfbd.zip?sv=2021-08-06&se=2022-12-07T11%3A22%3A00Z&sr=c&sp=rl&sig=xFnbhiPIgobyPyE%2FGRgJfqzi3ybwCUb19NllEVx4d0s%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-77d0c4b2-0657-4105-882a-c9459a2ce7e9a222d4c95964dbaa6/51d3d015-e3b2-4a26-af35-2e68ee02ad8f.zip?sv=2021-08-06&se=2022-12-08T04%3A42%3A07Z&sr=c&sp=rl&sig=saFuw03AeMS6%2FMg8Xh92Kyo5yjRXiNsxL%2BgUWRjnZ2A%3D>)
### Histogram

### Edge Detector Info

[Collection Data](<https://pvscmdupload.blob.core.windows.net/autofilereport/reports/11_15_2022/refs/heads/main_x64_ubuntu 18.04/System.Buffers.Text.Tests.Utf8ParserTests.TryParseInt64(value- -9223372036854775808).txt?sv=2018-03-28&sr=c&sig=XY91HfJ33gUz%2F6reRXA6dLc1DMCMz2Jx1g9tAdCYuJo%3D&se=2022-12-08T12%3A14%3A05Z&sp=racwdl>)
#### System.Buffers.Text.Tests.Utf8ParserTests.TryParseInt64(value: 9223372036854775807)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 22.19283269865067 > 16.63086313259269.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 9/23/2022 1:16:35 AM, 10/11/2022 8:42:28 PM, 10/19/2022 7:27:15 PM, 10/31/2022 4:38:04 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -9.275690621249364 (T) = (0 -20.313302515916632) / Math.Sqrt((0.008833013323346104 / (16)) + (8.364027773330086 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.2777451580932452 = (15.897773031853854 - 20.313302515916632) / 15.897773031853854 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Buffers.Text.Tests.Utf8ParserTests.TryParseInt64(value: -9223372036854775808)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 22.764201648476273 > 17.18611372837554.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 9/23/2022 1:16:35 AM, 10/11/2022 8:42:28 PM, 10/19/2022 7:27:15 PM, 10/31/2022 4:38:04 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -9.683494999969362 (T) = (0 -20.98591058883155) / Math.Sqrt((0.03630723696880299 / (16)) + (8.243052325497068 / (38))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (38) - 2, .025) and -0.2755608216815791 = (16.452301005267397 - 20.98591058883155) / 16.452301005267397 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
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 | [bfa4812aec806f09f1e2927939ba98118e5e5bf7](https://github.com/dotnet/runtime/commit/bfa4812aec806f09f1e2927939ba98118e5e5bf7)
Compare | [2aebbf75167b3aa21cae23e6fd702688dd724663](https://github.com/dotnet/runtime/commit/2aebbf75167b3aa21cae23e6fd702688dd724663)
Diff | [Diff](https://github.com/dotnet/runtime/compare/bfa4812aec806f09f1e2927939ba98118e5e5bf7...2aebbf75167b3aa21cae23e6fd702688dd724663)


### Regressions in System.Tests.Perf_Char

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Char_ToLowerInvariant - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Tests.Perf_Char.Char_ToLowerInvariant(input%3a%20%22Hello%20World!%22).html>) | 16.72 ns | 18.44 ns | 1.10 | 0.03 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Tests.Perf_Char_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Tests.Perf_Char.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_Char*'
```

### Related Issues

#### Regressions

#### Improvements

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-7cad1ec5-9416-4971-817f-f56a42c52ca546b09f26c9f4122b4/8fe0fdda-d537-46fa-8866-3c49810bbfbd.zip?sv=2021-08-06&se=2022-12-07T11%3A22%3A00Z&sr=c&sp=rl&sig=xFnbhiPIgobyPyE%2FGRgJfqzi3ybwCUb19NllEVx4d0s%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-77d0c4b2-0657-4105-882a-c9459a2ce7e9a222d4c95964dbaa6/51d3d015-e3b2-4a26-af35-2e68ee02ad8f.zip?sv=2021-08-06&se=2022-12-08T04%3A42%3A07Z&sr=c&sp=rl&sig=saFuw03AeMS6%2FMg8Xh92Kyo5yjRXiNsxL%2BgUWRjnZ2A%3D>)
### Histogram

### Edge Detector Info

[Collection Data](<https://pvscmdupload.blob.core.windows.net/autofilereport/reports/11_15_2022/refs/heads/main_x64_ubuntu 18.04/System.Tests.Perf_Char.Char_ToLowerInvariant(input- -Hello World!-).txt?sv=2018-03-28&sr=c&sig=XY91HfJ33gUz%2F6reRXA6dLc1DMCMz2Jx1g9tAdCYuJo%3D&se=2022-12-08T12%3A14%3A05Z&sp=racwdl>)
#### System.Tests.Perf_Char.Char_ToLowerInvariant(input: "Hello World!")

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 18.443254325458796 > 17.554240302805468.
IsChangePoint: Marked as a change because one of 10/2/2022 4:08:26 PM, 10/6/2022 2:13:23 PM, 10/11/2022 8:42:28 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -7.407192860548463 (T) = (0 -17.667164066808535) / Math.Sqrt((0.026924164569101915 / (16)) + (0.5379986921396405 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.056414439356238084 = (16.723705591883636 - 17.667164066808535) / 16.723705591883636 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
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 | [bfa4812aec806f09f1e2927939ba98118e5e5bf7](https://github.com/dotnet/runtime/commit/bfa4812aec806f09f1e2927939ba98118e5e5bf7)
Compare | [2aebbf75167b3aa21cae23e6fd702688dd724663](https://github.com/dotnet/runtime/commit/2aebbf75167b3aa21cae23e6fd702688dd724663)
Diff | [Diff](https://github.com/dotnet/runtime/compare/bfa4812aec806f09f1e2927939ba98118e5e5bf7...2aebbf75167b3aa21cae23e6fd702688dd724663)


### Regressions in System.Collections.IndexerSet&lt;String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Span - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Collections.IndexerSet(String).Span(Size%3a%20512).html>) | 180.68 ns | 232.97 ns | 1.29 | 0.15 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Collections.IndexerSet(String)_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Collections.IndexerSet(String).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.IndexerSet&lt;String&gt;*'
```

### Related Issues

#### Regressions

#### Improvements

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-7cad1ec5-9416-4971-817f-f56a42c52ca546b09f26c9f4122b4/8fe0fdda-d537-46fa-8866-3c49810bbfbd.zip?sv=2021-08-06&se=2022-12-07T11%3A22%3A00Z&sr=c&sp=rl&sig=xFnbhiPIgobyPyE%2FGRgJfqzi3ybwCUb19NllEVx4d0s%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-77d0c4b2-0657-4105-882a-c9459a2ce7e9a222d4c95964dbaa6/51d3d015-e3b2-4a26-af35-2e68ee02ad8f.zip?sv=2021-08-06&se=2022-12-08T04%3A42%3A07Z&sr=c&sp=rl&sig=saFuw03AeMS6%2FMg8Xh92Kyo5yjRXiNsxL%2BgUWRjnZ2A%3D>)
### Histogram

### Edge Detector Info

[Collection Data](<https://pvscmdupload.blob.core.windows.net/autofilereport/reports/11_15_2022/refs/heads/main_x64_ubuntu 18.04/System.Collections.IndexerSet-String-.Span(Size- 512).txt?sv=2018-03-28&sr=c&sig=XY91HfJ33gUz%2F6reRXA6dLc1DMCMz2Jx1g9tAdCYuJo%3D&se=2022-12-08T12%3A14%3A05Z&sp=racwdl>)
#### System.Collections.IndexerSet&lt;String&gt;.Span(Size: 512)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 232.97036899333656 > 189.69328612427577.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 9/23/2022 1:16:35 AM, 10/2/2022 4:08:45 AM, 10/6/2022 2:13:23 PM, 10/19/2022 7:27:15 PM, 11/1/2022 2:33:16 AM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -9.562505528165778 (T) = (0 -220.26905320647865) / Math.Sqrt((0.07188265773928504 / (16)) + (632.5508165942249 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.21880445013484376 = (180.72550783852893 - 220.26905320647865) / 180.72550783852893 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
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 | [bfa4812aec806f09f1e2927939ba98118e5e5bf7](https://github.com/dotnet/runtime/commit/bfa4812aec806f09f1e2927939ba98118e5e5bf7)
Compare | [2aebbf75167b3aa21cae23e6fd702688dd724663](https://github.com/dotnet/runtime/commit/2aebbf75167b3aa21cae23e6fd702688dd724663)
Diff | [Diff](https://github.com/dotnet/runtime/compare/bfa4812aec806f09f1e2927939ba98118e5e5bf7...2aebbf75167b3aa21cae23e6fd702688dd724663)


### Regressions in System.IO.Tests.StreamReaderReadLineTests

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ReadLineAsync - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.IO.Tests.StreamReaderReadLineTests.ReadLineAsync(LineLengthRange%3a%20%5b%20%20%201%2c%20%20%20%201%5d).html>) | 334.14 μs | 399.38 μs | 1.20 | 0.14 | False | | |
[ReadLineAsync - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.IO.Tests.StreamReaderReadLineTests.ReadLineAsync(LineLengthRange%3a%20%5b%20%20%200%2c%20%20%20%200%5d).html>) | 526.76 μs | 628.30 μs | 1.19 | 0.24 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.IO.Tests.StreamReaderReadLineTests_1.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.IO.Tests.StreamReaderReadLineTests_2.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.IO.Tests.StreamReaderReadLineTests.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.IO.Tests.StreamReaderReadLineTests*'
```

### Related Issues

#### Regressions

#### Improvements

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-7cad1ec5-9416-4971-817f-f56a42c52ca546b09f26c9f4122b4/8fe0fdda-d537-46fa-8866-3c49810bbfbd.zip?sv=2021-08-06&se=2022-12-07T11%3A22%3A00Z&sr=c&sp=rl&sig=xFnbhiPIgobyPyE%2FGRgJfqzi3ybwCUb19NllEVx4d0s%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-77d0c4b2-0657-4105-882a-c9459a2ce7e9a222d4c95964dbaa6/51d3d015-e3b2-4a26-af35-2e68ee02ad8f.zip?sv=2021-08-06&se=2022-12-08T04%3A42%3A07Z&sr=c&sp=rl&sig=saFuw03AeMS6%2FMg8Xh92Kyo5yjRXiNsxL%2BgUWRjnZ2A%3D>)
### Histogram

### Edge Detector Info

[Collection Data](<https://pvscmdupload.blob.core.windows.net/autofilereport/reports/11_15_2022/refs/heads/main_x64_ubuntu 18.04/System.IO.Tests.StreamReaderReadLineTests.ReadLineAsync(LineLengthRange- [   0,    0]).txt?sv=2018-03-28&sr=c&sig=XY91HfJ33gUz%2F6reRXA6dLc1DMCMz2Jx1g9tAdCYuJo%3D&se=2022-12-08T12%3A14%3A05Z&sp=racwdl>)
#### System.IO.Tests.StreamReaderReadLineTests.ReadLineAsync(LineLengthRange: [   1,    1])

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 399.37636711045366 > 350.6809496355553.
IsChangePoint: Marked as a change because one of 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -14.782936413555788 (T) = (0 -380185.54868294) / Math.Sqrt((55698918.822174944 / (16)) + (147909593.661088 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.11898847745903653 = (339758.23374540306 - 380185.54868294) / 339758.23374540306 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.IO.Tests.StreamReaderReadLineTests.ReadLineAsync(LineLengthRange: [   0,    0])

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 628.2965556666667 > 559.288579140625.
IsChangePoint: Marked as a change because one of 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -16.44234515368953 (T) = (0 -642223.0471008036) / Math.Sqrt((261482968.2116026 / (16)) + (733203162.991802 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.1819663655528818 = (543351.3726089782 - 642223.0471008036) / 543351.3726089782 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
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 | [bfa4812aec806f09f1e2927939ba98118e5e5bf7](https://github.com/dotnet/runtime/commit/bfa4812aec806f09f1e2927939ba98118e5e5bf7)
Compare | [2aebbf75167b3aa21cae23e6fd702688dd724663](https://github.com/dotnet/runtime/commit/2aebbf75167b3aa21cae23e6fd702688dd724663)
Diff | [Diff](https://github.com/dotnet/runtime/compare/bfa4812aec806f09f1e2927939ba98118e5e5bf7...2aebbf75167b3aa21cae23e6fd702688dd724663)


### Regressions in System.MathBenchmarks.Double

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Min - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.MathBenchmarks.Double.Min.html>) | 5.45 μs | 6.48 μs | 1.19 | 0.03 | False | | |
[Max - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.MathBenchmarks.Double.Max.html>) | 5.45 μs | 5.97 μs | 1.10 | 0.01 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.MathBenchmarks.Double_1.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.MathBenchmarks.Double_2.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.MathBenchmarks.Double.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.MathBenchmarks.Double*'
```

### Related Issues

#### Regressions

#### Improvements

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-7cad1ec5-9416-4971-817f-f56a42c52ca546b09f26c9f4122b4/8fe0fdda-d537-46fa-8866-3c49810bbfbd.zip?sv=2021-08-06&se=2022-12-07T11%3A22%3A00Z&sr=c&sp=rl&sig=xFnbhiPIgobyPyE%2FGRgJfqzi3ybwCUb19NllEVx4d0s%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-77d0c4b2-0657-4105-882a-c9459a2ce7e9a222d4c95964dbaa6/51d3d015-e3b2-4a26-af35-2e68ee02ad8f.zip?sv=2021-08-06&se=2022-12-08T04%3A42%3A07Z&sr=c&sp=rl&sig=saFuw03AeMS6%2FMg8Xh92Kyo5yjRXiNsxL%2BgUWRjnZ2A%3D>)
### Histogram

### Edge Detector Info

[Collection Data](<https://pvscmdupload.blob.core.windows.net/autofilereport/reports/11_15_2022/refs/heads/main_x64_ubuntu 18.04/System.MathBenchmarks.Double.Max.txt?sv=2018-03-28&sr=c&sig=XY91HfJ33gUz%2F6reRXA6dLc1DMCMz2Jx1g9tAdCYuJo%3D&se=2022-12-08T12%3A14%3A05Z&sp=racwdl>)
#### System.MathBenchmarks.Double.Min

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 6.482171705064343 > 5.723887925295047.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 9/23/2022 1:16:35 AM, 9/29/2022 7:42:19 AM, 10/11/2022 8:42:28 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -12.803226097013333 (T) = (0 -6303.204940285497) / Math.Sqrt((3.84953204434635 / (16)) + (168650.9891305228 / (38))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (38) - 2, .025) and -0.15650154266359861 = (5450.234788073226 - 6303.204940285497) / 5450.234788073226 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.MathBenchmarks.Double.Max

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 5.972719048528849 > 5.720471996915976.
IsChangePoint: Marked as a change because one of 10/25/2022 2:34:53 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -11.69958332677974 (T) = (0 -5873.789380132023) / Math.Sqrt((9922.69638986074 / (16)) + (42591.86102422702 / (38))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (38) - 2, .025) and -0.09064314245089053 = (5385.6198709804 - 5873.789380132023) / 5385.6198709804 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
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 | [bfa4812aec806f09f1e2927939ba98118e5e5bf7](https://github.com/dotnet/runtime/commit/bfa4812aec806f09f1e2927939ba98118e5e5bf7)
Compare | [2aebbf75167b3aa21cae23e6fd702688dd724663](https://github.com/dotnet/runtime/commit/2aebbf75167b3aa21cae23e6fd702688dd724663)
Diff | [Diff](https://github.com/dotnet/runtime/compare/bfa4812aec806f09f1e2927939ba98118e5e5bf7...2aebbf75167b3aa21cae23e6fd702688dd724663)


### Regressions in System.Collections.CtorFromCollection&lt;String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ImmutableDictionary - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Collections.CtorFromCollection(String).ImmutableDictionary(Size%3a%20512).html>) | 138.86 μs | 150.23 μs | 1.08 | 0.13 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Collections.CtorFromCollection(String)_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Collections.CtorFromCollection(String).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.CtorFromCollection&lt;String&gt;*'
```

### Related Issues

#### Regressions

#### Improvements

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-7cad1ec5-9416-4971-817f-f56a42c52ca546b09f26c9f4122b4/8fe0fdda-d537-46fa-8866-3c49810bbfbd.zip?sv=2021-08-06&se=2022-12-07T11%3A22%3A00Z&sr=c&sp=rl&sig=xFnbhiPIgobyPyE%2FGRgJfqzi3ybwCUb19NllEVx4d0s%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-77d0c4b2-0657-4105-882a-c9459a2ce7e9a222d4c95964dbaa6/51d3d015-e3b2-4a26-af35-2e68ee02ad8f.zip?sv=2021-08-06&se=2022-12-08T04%3A42%3A07Z&sr=c&sp=rl&sig=saFuw03AeMS6%2FMg8Xh92Kyo5yjRXiNsxL%2BgUWRjnZ2A%3D>)
### Histogram

### Edge Detector Info

[Collection Data](<https://pvscmdupload.blob.core.windows.net/autofilereport/reports/11_15_2022/refs/heads/main_x64_ubuntu 18.04/System.Collections.CtorFromCollection-String-.ImmutableDictionary(Size- 512).txt?sv=2018-03-28&sr=c&sig=XY91HfJ33gUz%2F6reRXA6dLc1DMCMz2Jx1g9tAdCYuJo%3D&se=2022-12-08T12%3A14%3A05Z&sp=racwdl>)
#### System.Collections.CtorFromCollection&lt;String&gt;.ImmutableDictionary(Size: 512)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 150.22714089285716 > 146.92920510999852.
IsChangePoint: Marked as a change because one of 9/23/2022 1:16:35 AM, 10/17/2022 8:10:07 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -8.918226090802639 (T) = (0 -148104.51312537215) / Math.Sqrt((2858308.008602207 / (16)) + (19906848.030958474 / (38))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (38) - 2, .025) and -0.053152963662812615 = (140629.63143575285 - 148104.51312537215) / 140629.63143575285 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
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 | [bfa4812aec806f09f1e2927939ba98118e5e5bf7](https://github.com/dotnet/runtime/commit/bfa4812aec806f09f1e2927939ba98118e5e5bf7)
Compare | [2aebbf75167b3aa21cae23e6fd702688dd724663](https://github.com/dotnet/runtime/commit/2aebbf75167b3aa21cae23e6fd702688dd724663)
Diff | [Diff](https://github.com/dotnet/runtime/compare/bfa4812aec806f09f1e2927939ba98118e5e5bf7...2aebbf75167b3aa21cae23e6fd702688dd724663)


### Regressions in System.Linq.Tests.Perf_Enumerable

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[WhereSingle_LastElementMatches - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Linq.Tests.Perf_Enumerable.WhereSingle_LastElementMatches(input%3a%20Array).html>) | 190.14 ns | 211.42 ns | 1.11 | 0.05 | False | | |
[WhereFirst_LastElementMatches - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Linq.Tests.Perf_Enumerable.WhereFirst_LastElementMatches(input%3a%20Array).html>) | 190.87 ns | 211.78 ns | 1.11 | 0.04 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Linq.Tests.Perf_Enumerable_1.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Linq.Tests.Perf_Enumerable_2.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Linq.Tests.Perf_Enumerable.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Linq.Tests.Perf_Enumerable*'
```

### Related Issues

#### Regressions

#### Improvements

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-7cad1ec5-9416-4971-817f-f56a42c52ca546b09f26c9f4122b4/8fe0fdda-d537-46fa-8866-3c49810bbfbd.zip?sv=2021-08-06&se=2022-12-07T11%3A22%3A00Z&sr=c&sp=rl&sig=xFnbhiPIgobyPyE%2FGRgJfqzi3ybwCUb19NllEVx4d0s%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-77d0c4b2-0657-4105-882a-c9459a2ce7e9a222d4c95964dbaa6/51d3d015-e3b2-4a26-af35-2e68ee02ad8f.zip?sv=2021-08-06&se=2022-12-08T04%3A42%3A07Z&sr=c&sp=rl&sig=saFuw03AeMS6%2FMg8Xh92Kyo5yjRXiNsxL%2BgUWRjnZ2A%3D>)
### Histogram

### Edge Detector Info

[Collection Data](<https://pvscmdupload.blob.core.windows.net/autofilereport/reports/11_15_2022/refs/heads/main_x64_ubuntu 18.04/System.Linq.Tests.Perf_Enumerable.WhereFirst_LastElementMatches(input- Array).txt?sv=2018-03-28&sr=c&sig=XY91HfJ33gUz%2F6reRXA6dLc1DMCMz2Jx1g9tAdCYuJo%3D&se=2022-12-08T12%3A14%3A05Z&sp=racwdl>)
#### System.Linq.Tests.Perf_Enumerable.WhereSingle_LastElementMatches(input: Array)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 211.41983451963767 > 199.6457327533048.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 10/6/2022 2:13:23 PM, 10/31/2022 4:38:04 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -9.554168513126532 (T) = (0 -205.32897386055) / Math.Sqrt((0.21048794115904007 / (16)) + (91.40288433743625 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.07913150774878853 = (190.27242962156993 - 205.32897386055) / 190.27242962156993 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Linq.Tests.Perf_Enumerable.WhereFirst_LastElementMatches(input: Array)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 211.77893976575027 > 200.48165072676463.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 10/6/2022 2:13:23 PM, 10/31/2022 4:38:04 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -8.521672071752441 (T) = (0 -206.2262572746283) / Math.Sqrt((4.72527723640078 / (16)) + (101.3877538279305 / (36))) is less than -2.0085591120996775 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (36) - 2, .025) and -0.07862236251955844 = (191.19412357899157 - 206.2262572746283) / 191.19412357899157 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
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 | [bfa4812aec806f09f1e2927939ba98118e5e5bf7](https://github.com/dotnet/runtime/commit/bfa4812aec806f09f1e2927939ba98118e5e5bf7)
Compare | [2aebbf75167b3aa21cae23e6fd702688dd724663](https://github.com/dotnet/runtime/commit/2aebbf75167b3aa21cae23e6fd702688dd724663)
Diff | [Diff](https://github.com/dotnet/runtime/compare/bfa4812aec806f09f1e2927939ba98118e5e5bf7...2aebbf75167b3aa21cae23e6fd702688dd724663)


### Regressions in System.Collections.IterateFor&lt;Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ImmutableList - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Collections.IterateFor(Int32).ImmutableList(Size%3a%20512).html>) | 10.94 μs | 11.89 μs | 1.09 | 0.03 | False | | |
[ImmutableSortedSet - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Collections.IterateFor(Int32).ImmutableSortedSet(Size%3a%20512).html>) | 10.93 μs | 11.90 μs | 1.09 | 0.02 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Collections.IterateFor(Int32)_1.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Collections.IterateFor(Int32)_2.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Collections.IterateFor(Int32).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.IterateFor&lt;Int32&gt;*'
```

### Related Issues

#### Regressions

#### Improvements

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-7cad1ec5-9416-4971-817f-f56a42c52ca546b09f26c9f4122b4/8fe0fdda-d537-46fa-8866-3c49810bbfbd.zip?sv=2021-08-06&se=2022-12-07T11%3A22%3A00Z&sr=c&sp=rl&sig=xFnbhiPIgobyPyE%2FGRgJfqzi3ybwCUb19NllEVx4d0s%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-77d0c4b2-0657-4105-882a-c9459a2ce7e9a222d4c95964dbaa6/51d3d015-e3b2-4a26-af35-2e68ee02ad8f.zip?sv=2021-08-06&se=2022-12-08T04%3A42%3A07Z&sr=c&sp=rl&sig=saFuw03AeMS6%2FMg8Xh92Kyo5yjRXiNsxL%2BgUWRjnZ2A%3D>)
### Histogram

### Edge Detector Info

[Collection Data](<https://pvscmdupload.blob.core.windows.net/autofilereport/reports/11_15_2022/refs/heads/main_x64_ubuntu 18.04/System.Collections.IterateFor-Int32-.ImmutableSortedSet(Size- 512).txt?sv=2018-03-28&sr=c&sig=XY91HfJ33gUz%2F6reRXA6dLc1DMCMz2Jx1g9tAdCYuJo%3D&se=2022-12-08T12%3A14%3A05Z&sp=racwdl>)
#### System.Collections.IterateFor&lt;Int32&gt;.ImmutableList(Size: 512)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 11.890829597317571 > 11.486369528882046.
IsChangePoint: Marked as a change because one of 9/7/2022 1:05:52 PM, 9/23/2022 1:16:35 AM, 9/24/2022 1:05:07 PM, 10/2/2022 4:08:26 PM, 10/6/2022 2:13:23 PM, 11/3/2022 3:03:31 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -8.84961754672181 (T) = (0 -11841.863696315608) / Math.Sqrt((87101.69213736545 / (16)) + (81012.02349001147 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.06985328302425661 = (11068.680055681167 - 11841.863696315608) / 11068.680055681167 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.IterateFor&lt;Int32&gt;.ImmutableSortedSet(Size: 512)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 11.899732989282093 > 11.490290404405876.
IsChangePoint: Marked as a change because one of 9/23/2022 1:16:35 AM, 9/29/2022 7:42:19 AM, 10/2/2022 4:08:26 PM, 11/3/2022 3:03:31 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -6.804122098263 (T) = (0 -11859.249976383551) / Math.Sqrt((190493.31053203033 / (16)) + (18735.330497867715 / (37))) is less than -2.007583770314729 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (37) - 2, .025) and -0.06828515744266861 = (11101.202608461776 - 11859.249976383551) / 11101.202608461776 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
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 | [bfa4812aec806f09f1e2927939ba98118e5e5bf7](https://github.com/dotnet/runtime/commit/bfa4812aec806f09f1e2927939ba98118e5e5bf7)
Compare | [2aebbf75167b3aa21cae23e6fd702688dd724663](https://github.com/dotnet/runtime/commit/2aebbf75167b3aa21cae23e6fd702688dd724663)
Diff | [Diff](https://github.com/dotnet/runtime/compare/bfa4812aec806f09f1e2927939ba98118e5e5bf7...2aebbf75167b3aa21cae23e6fd702688dd724663)


### Regressions in Benchstone.BenchI.IniArray

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Test - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/Benchstone.BenchI.IniArray.Test.html>) | 45.89 ms | 50.58 ms | 1.10 | 0.03 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/Benchstone.BenchI.IniArray_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/Benchstone.BenchI.IniArray.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'Benchstone.BenchI.IniArray*'
```

### Related Issues

#### Regressions

#### Improvements

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-7cad1ec5-9416-4971-817f-f56a42c52ca546b09f26c9f4122b4/8fe0fdda-d537-46fa-8866-3c49810bbfbd.zip?sv=2021-08-06&se=2022-12-07T11%3A22%3A00Z&sr=c&sp=rl&sig=xFnbhiPIgobyPyE%2FGRgJfqzi3ybwCUb19NllEVx4d0s%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-77d0c4b2-0657-4105-882a-c9459a2ce7e9a222d4c95964dbaa6/51d3d015-e3b2-4a26-af35-2e68ee02ad8f.zip?sv=2021-08-06&se=2022-12-08T04%3A42%3A07Z&sr=c&sp=rl&sig=saFuw03AeMS6%2FMg8Xh92Kyo5yjRXiNsxL%2BgUWRjnZ2A%3D>)
### Histogram

### Edge Detector Info

[Collection Data](<https://pvscmdupload.blob.core.windows.net/autofilereport/reports/11_15_2022/refs/heads/main_x64_ubuntu 18.04/Benchstone.BenchI.IniArray.Test.txt?sv=2018-03-28&sr=c&sig=XY91HfJ33gUz%2F6reRXA6dLc1DMCMz2Jx1g9tAdCYuJo%3D&se=2022-12-08T12%3A14%3A05Z&sp=racwdl>)
#### Benchstone.BenchI.IniArray.Test

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 50.5768609625 > 48.045140797500004.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 9/23/2022 1:16:35 AM, 10/11/2022 8:42:28 PM, 10/19/2022 7:27:15 PM, 10/31/2022 4:38:04 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -7.6601565865674655 (T) = (0 -49174234.29111843) / Math.Sqrt((580328568350.4752 / (16)) + (7794842012276.436 / (38))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (38) - 2, .025) and -0.08287946820905547 = (45410625.77578125 - 49174234.29111843) / 45410625.77578125 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
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 | [bfa4812aec806f09f1e2927939ba98118e5e5bf7](https://github.com/dotnet/runtime/commit/bfa4812aec806f09f1e2927939ba98118e5e5bf7)
Compare | [2aebbf75167b3aa21cae23e6fd702688dd724663](https://github.com/dotnet/runtime/commit/2aebbf75167b3aa21cae23e6fd702688dd724663)
Diff | [Diff](https://github.com/dotnet/runtime/compare/bfa4812aec806f09f1e2927939ba98118e5e5bf7...2aebbf75167b3aa21cae23e6fd702688dd724663)


### Regressions in System.Globalization.Tests.StringSearch

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[LastIndexOf_Word_NotFound - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options%3a%20(en-US%2c%20OrdinalIgnoreCase%2c%20False)).html>) | 540.34 ns | 591.84 ns | 1.10 | 0.05 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Globalization.Tests.StringSearch_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Globalization.Tests.StringSearch.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Globalization.Tests.StringSearch*'
```

### Related Issues

#### Regressions

#### Improvements

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-7cad1ec5-9416-4971-817f-f56a42c52ca546b09f26c9f4122b4/8fe0fdda-d537-46fa-8866-3c49810bbfbd.zip?sv=2021-08-06&se=2022-12-07T11%3A22%3A00Z&sr=c&sp=rl&sig=xFnbhiPIgobyPyE%2FGRgJfqzi3ybwCUb19NllEVx4d0s%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-77d0c4b2-0657-4105-882a-c9459a2ce7e9a222d4c95964dbaa6/51d3d015-e3b2-4a26-af35-2e68ee02ad8f.zip?sv=2021-08-06&se=2022-12-08T04%3A42%3A07Z&sr=c&sp=rl&sig=saFuw03AeMS6%2FMg8Xh92Kyo5yjRXiNsxL%2BgUWRjnZ2A%3D>)
### Histogram

### Edge Detector Info

[Collection Data](<https://pvscmdupload.blob.core.windows.net/autofilereport/reports/11_15_2022/refs/heads/main_x64_ubuntu 18.04/System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options- (en-US, OrdinalIgnoreCase, False)).txt?sv=2018-03-28&sr=c&sig=XY91HfJ33gUz%2F6reRXA6dLc1DMCMz2Jx1g9tAdCYuJo%3D&se=2022-12-08T12%3A14%3A05Z&sp=racwdl>)
#### System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (en-US, OrdinalIgnoreCase, False))

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 591.8351749027564 > 567.4671108117338.
IsChangePoint: Marked as a change because one of 9/3/2022 11:44:47 AM, 9/13/2022 12:23:36 PM, 9/23/2022 1:16:35 AM, 10/2/2022 4:08:26 PM, 10/6/2022 2:13:23 PM, 10/31/2022 4:38:04 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -9.546341918368938 (T) = (0 -575.9324839835615) / Math.Sqrt((0.2801493266789964 / (16)) + (519.7217256342007 / (38))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (38) - 2, .025) and -0.06534736839842478 = (540.6053472018067 - 575.9324839835615) / 540.6053472018067 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
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 | [bfa4812aec806f09f1e2927939ba98118e5e5bf7](https://github.com/dotnet/runtime/commit/bfa4812aec806f09f1e2927939ba98118e5e5bf7)
Compare | [2aebbf75167b3aa21cae23e6fd702688dd724663](https://github.com/dotnet/runtime/commit/2aebbf75167b3aa21cae23e6fd702688dd724663)
Diff | [Diff](https://github.com/dotnet/runtime/compare/bfa4812aec806f09f1e2927939ba98118e5e5bf7...2aebbf75167b3aa21cae23e6fd702688dd724663)


### Regressions in System.Collections.AddGivenSize&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.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Collections.AddGivenSize(String).Stack(Size%3a%20512).html>) | 1.56 μs | 1.77 μs | 1.13 | 0.17 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Collections.AddGivenSize(String)_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/11_15_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Collections.AddGivenSize(String).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.AddGivenSize&lt;String&gt;*'
```

### Related Issues

#### Regressions

#### Improvements

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-7cad1ec5-9416-4971-817f-f56a42c52ca546b09f26c9f4122b4/8fe0fdda-d537-46fa-8866-3c49810bbfbd.zip?sv=2021-08-06&se=2022-12-07T11%3A22%3A00Z&sr=c&sp=rl&sig=xFnbhiPIgobyPyE%2FGRgJfqzi3ybwCUb19NllEVx4d0s%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-77d0c4b2-0657-4105-882a-c9459a2ce7e9a222d4c95964dbaa6/51d3d015-e3b2-4a26-af35-2e68ee02ad8f.zip?sv=2021-08-06&se=2022-12-08T04%3A42%3A07Z&sr=c&sp=rl&sig=saFuw03AeMS6%2FMg8Xh92Kyo5yjRXiNsxL%2BgUWRjnZ2A%3D>)
### Histogram

### Edge Detector Info

[Collection Data](<https://pvscmdupload.blob.core.windows.net/autofilereport/reports/11_15_2022/refs/heads/main_x64_ubuntu 18.04/System.Collections.AddGivenSize-String-.Stack(Size- 512).txt?sv=2018-03-28&sr=c&sig=XY91HfJ33gUz%2F6reRXA6dLc1DMCMz2Jx1g9tAdCYuJo%3D&se=2022-12-08T12%3A14%3A05Z&sp=racwdl>)
#### System.Collections.AddGivenSize&lt;String&gt;.Stack(Size: 512)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionWindowed: Marked as regression because 1.7698955011042725 > 1.6382135665752704.
IsChangePoint: Marked as a change because one of 9/3/2022 12:10:33 AM, 9/13/2022 12:23:36 PM, 9/27/2022 11:22:50 AM, 10/2/2022 4:08:26 PM, 10/6/2022 2:13:23 PM, 10/19/2022 7:27:15 PM, 10/31/2022 4:38:04 PM, 11/7/2022 4:10:19 PM, 11/14/2022 7:25:10 PM falls between 11/5/2022 10:22:58 PM and 11/14/2022 7:25:10 PM.
IsRegressionStdDev: Marked as regression because -12.956980256617758 (T) = (0 -1714.828413933533) / Math.Sqrt((36.82722375868465 / (16)) + (5363.622930104425 / (38))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (38) - 2, .025) and -0.09950127483860234 = (1559.6420424207836 - 1714.828413933533) / 1559.6420424207836 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
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	bfa4812aec806f09f1e2927939ba98118e5e5bf7
Compare	2aebbf75167b3aa21cae23e6fd702688dd724663
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
TryParseInt64 - Duration of single invocation	15.74 ns	22.19 ns	1.41	0.03	False
TryParseInt64 - Duration of single invocation	16.40 ns	22.76 ns	1.39	0.03	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ReadLineAsync - Duration of single invocation	334.14 μs	399.38 μs	1.20	0.14	False
ReadLineAsync - Duration of single invocation	526.76 μs	628.30 μs	1.19	0.24	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Min - Duration of single invocation	5.45 μs	6.48 μs	1.19	0.03	False
Max - Duration of single invocation	5.45 μs	5.97 μs	1.10	0.01	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
WhereSingle_LastElementMatches - Duration of single invocation	190.14 ns	211.42 ns	1.11	0.05	False
WhereFirst_LastElementMatches - Duration of single invocation	190.87 ns	211.78 ns	1.11	0.04	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ImmutableList - Duration of single invocation	10.94 μs	11.89 μs	1.09	0.03	False
ImmutableSortedSet - Duration of single invocation	10.93 μs	11.90 μs	1.09	0.02	False

Regressions in System.IO.Tests.StreamReaderReadLineTests #78401

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Regressions in System.Buffers.Text.Tests.Utf8ParserTests

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System.Buffers.Text.Tests.Utf8ParserTests.TryParseInt64(value: 9223372036854775807)

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Regressions in System.Tests.Perf_Char

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System.Tests.Perf_Char.Char_ToLowerInvariant(input: "Hello World!")

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Regressions in System.Collections.IndexerSet<String>

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System.Collections.IndexerSet<String>.Span(Size: 512)

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