Regressions in System.Tests.Perf_String and others

### Run Information

Architecture | x64
-- | --
OS | Windows 10.0.18362
Baseline | [79d478ae01d9a3e7548bf41a76d047158ed8a62b](https://github.com/dotnet/runtime/commit/79d478ae01d9a3e7548bf41a76d047158ed8a62b)
Compare | [4017327955f1d8ddc43980eb1848c52fbb131dfc](https://github.com/dotnet/runtime/commit/4017327955f1d8ddc43980eb1848c52fbb131dfc)
Diff | [Diff](https://github.com/dotnet/runtime/compare/79d478ae01d9a3e7548bf41a76d047158ed8a62b...4017327955f1d8ddc43980eb1848c52fbb131dfc)


### Regressions in System.Tests.Perf_String

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Join_List - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/System.Tests.Perf_String.Join_List.html>) | 64.08 ns | 72.98 ns | 1.14 | 0.20 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_22_2022/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Tests.Perf_String_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_22_2022/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Tests.Perf_String.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_String*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-1d341975-cf9d-4cd3-8eb9-009394f3f199be7a3533f0c45f8bf/86e94531-ef76-46b8-8e18-5ffc22afbefc.zip?sv=2019-07-07&se=2022-03-21T15%3A10%3A23Z&sr=c&sp=rl&sig=ZMrA9p3kMNvlRzzxu1EmkfpkBhcmacDVYAoI7vSkEp8%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-c643ec35-34c7-48ef-bb73-a888988039ab1ce21666630481682/bb574c2b-049e-430d-a49b-1d2dadb88913.zip?sv=2019-07-07&se=2022-03-22T21%3A19%3A23Z&sr=c&sp=rl&sig=eeD5sBt01Euek8ORW8kEQ7c6Iyvo4gu0TxFeTeeEZXs%3D>)
### Histogram

#### System.Tests.Perf_String.Join_List

```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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 72.97761332132208 > 66.83227270928785.
IsChangePoint: Marked as a change because one of 1/6/2022 9:51:48 PM, 2/1/2022 8:13:55 AM, 2/8/2022 5:20:12 PM, 2/19/2022 11:51:48 PM, 2/22/2022 12:12:47 AM falls between 2/13/2022 12:11:49 PM and 2/22/2022 12:12:47 AM.
IsRegressionStdDev: Marked as regression because -43.83533190922862 (T) = (0 -71.9554874270983) / Math.Sqrt((0.3131228718602684 / (60)) + (0.22990434339387625 / (7))) is less than -1.997137908391408 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (60) + (7) - 2, .025) and -0.13488340617086775 = (63.403418391567094 - 71.9554874270983) / 63.403418391567094 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.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>
### Run Information

Architecture | x64
-- | --
OS | Windows 10.0.18362
Baseline | [79d478ae01d9a3e7548bf41a76d047158ed8a62b](https://github.com/dotnet/runtime/commit/79d478ae01d9a3e7548bf41a76d047158ed8a62b)
Compare | [4017327955f1d8ddc43980eb1848c52fbb131dfc](https://github.com/dotnet/runtime/commit/4017327955f1d8ddc43980eb1848c52fbb131dfc)
Diff | [Diff](https://github.com/dotnet/runtime/compare/79d478ae01d9a3e7548bf41a76d047158ed8a62b...4017327955f1d8ddc43980eb1848c52fbb131dfc)


### Regressions in System.Collections.TryGetValueTrue&lt;Int32, Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ConcurrentDictionary - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/System.Collections.TryGetValueTrue(Int32%2c%20Int32).ConcurrentDictionary(Size%3a%20512).html>) | 3.39 μs | 3.72 μs | 1.10 | 0.15 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_22_2022/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Collections.TryGetValueTrue(Int32,%20Int32)_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_22_2022/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Collections.TryGetValueTrue(Int32,%20Int32).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.TryGetValueTrue&lt;Int32, Int32&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-1d341975-cf9d-4cd3-8eb9-009394f3f199be7a3533f0c45f8bf/86e94531-ef76-46b8-8e18-5ffc22afbefc.zip?sv=2019-07-07&se=2022-03-21T15%3A10%3A23Z&sr=c&sp=rl&sig=ZMrA9p3kMNvlRzzxu1EmkfpkBhcmacDVYAoI7vSkEp8%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-c643ec35-34c7-48ef-bb73-a888988039ab1ce21666630481682/bb574c2b-049e-430d-a49b-1d2dadb88913.zip?sv=2019-07-07&se=2022-03-22T21%3A19%3A23Z&sr=c&sp=rl&sig=eeD5sBt01Euek8ORW8kEQ7c6Iyvo4gu0TxFeTeeEZXs%3D>)
### Histogram

#### System.Collections.TryGetValueTrue&lt;Int32, Int32&gt;.ConcurrentDictionary(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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 3.716787291075371 > 3.5413629846971113.
IsChangePoint: Marked as a change because one of 1/29/2022 3:20:10 AM, 2/19/2022 11:51:48 PM, 2/22/2022 12:12:47 AM falls between 2/13/2022 12:11:49 PM and 2/22/2022 12:12:47 AM.
IsRegressionStdDev: Marked as regression because -30.011855234331993 (T) = (0 -3713.3290860295533) / Math.Sqrt((5700.65797803358 / (60)) + (217.70987505752703 / (7))) is less than -1.997137908391408 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (60) + (7) - 2, .025) and -0.09982311104195103 = (3376.296650569215 - 3713.3290860295533) / 3376.296650569215 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.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


### Run Information

Architecture | x64
-- | --
OS | Windows 10.0.18362
Baseline | [79d478ae01d9a3e7548bf41a76d047158ed8a62b](https://github.com/dotnet/runtime/commit/79d478ae01d9a3e7548bf41a76d047158ed8a62b)
Compare | [4017327955f1d8ddc43980eb1848c52fbb131dfc](https://github.com/dotnet/runtime/commit/4017327955f1d8ddc43980eb1848c52fbb131dfc)
Diff | [Diff](https://github.com/dotnet/runtime/compare/79d478ae01d9a3e7548bf41a76d047158ed8a62b...4017327955f1d8ddc43980eb1848c52fbb131dfc)


### Regressions in System.Numerics.Tests.Perf_VectorOf&lt;Byte&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[DotBenchmark - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/System.Numerics.Tests.Perf_VectorOf(Byte).DotBenchmark.html>) | 97.58 ns | 148.75 ns | 1.52 | 0.13 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_22_2022/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Numerics.Tests.Perf_VectorOf(Byte)_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_22_2022/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Numerics.Tests.Perf_VectorOf(Byte).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Numerics.Tests.Perf_VectorOf&lt;Byte&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-1d341975-cf9d-4cd3-8eb9-009394f3f199be7a3533f0c45f8bf/86e94531-ef76-46b8-8e18-5ffc22afbefc.zip?sv=2019-07-07&se=2022-03-21T15%3A10%3A23Z&sr=c&sp=rl&sig=ZMrA9p3kMNvlRzzxu1EmkfpkBhcmacDVYAoI7vSkEp8%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-c643ec35-34c7-48ef-bb73-a888988039ab1ce21666630481682/bb574c2b-049e-430d-a49b-1d2dadb88913.zip?sv=2019-07-07&se=2022-03-22T21%3A19%3A23Z&sr=c&sp=rl&sig=eeD5sBt01Euek8ORW8kEQ7c6Iyvo4gu0TxFeTeeEZXs%3D>)
### Histogram

#### System.Numerics.Tests.Perf_VectorOf&lt;Byte&gt;.DotBenchmark

```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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 148.7502153526094 > 101.16261608966454.
IsChangePoint: Marked as a change because one of 2/8/2022 5:20:12 PM, 2/19/2022 11:51:48 PM, 2/22/2022 12:12:47 AM falls between 2/13/2022 12:11:49 PM and 2/22/2022 12:12:47 AM.
IsRegressionStdDev: Marked as regression because -4.700591367550864 (T) = (0 -119.83606513303899) / Math.Sqrt((0.7766001912223989 / (60)) + (162.5654187896537 / (7))) is less than -1.997137908391408 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (60) + (7) - 2, .025) and -0.23317085412587393 = (97.17717924657252 - 119.83606513303899) / 97.17717924657252 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.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


### Run Information

Architecture | x64
-- | --
OS | Windows 10.0.18362
Baseline | [79d478ae01d9a3e7548bf41a76d047158ed8a62b](https://github.com/dotnet/runtime/commit/79d478ae01d9a3e7548bf41a76d047158ed8a62b)
Compare | [4017327955f1d8ddc43980eb1848c52fbb131dfc](https://github.com/dotnet/runtime/commit/4017327955f1d8ddc43980eb1848c52fbb131dfc)
Diff | [Diff](https://github.com/dotnet/runtime/compare/79d478ae01d9a3e7548bf41a76d047158ed8a62b...4017327955f1d8ddc43980eb1848c52fbb131dfc)


### Regressions in System.Tests.Perf_UInt32

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[TryParse - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/System.Tests.Perf_UInt32.TryParse(value%3a%20%2212345%22).html>) | 15.75 ns | 17.75 ns | 1.13 | 0.06 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_22_2022/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Tests.Perf_UInt32_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_22_2022/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Tests.Perf_UInt32.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_UInt32*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-1d341975-cf9d-4cd3-8eb9-009394f3f199be7a3533f0c45f8bf/86e94531-ef76-46b8-8e18-5ffc22afbefc.zip?sv=2019-07-07&se=2022-03-21T15%3A10%3A23Z&sr=c&sp=rl&sig=ZMrA9p3kMNvlRzzxu1EmkfpkBhcmacDVYAoI7vSkEp8%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-c643ec35-34c7-48ef-bb73-a888988039ab1ce21666630481682/bb574c2b-049e-430d-a49b-1d2dadb88913.zip?sv=2019-07-07&se=2022-03-22T21%3A19%3A23Z&sr=c&sp=rl&sig=eeD5sBt01Euek8ORW8kEQ7c6Iyvo4gu0TxFeTeeEZXs%3D>)
### Histogram

#### System.Tests.Perf_UInt32.TryParse(value: "12345")

```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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 17.750023866199047 > 16.533656650498827.
IsChangePoint: Marked as a change because one of 1/25/2022 9:10:05 PM, 1/28/2022 6:30:08 PM, 1/31/2022 1:37:35 PM, 2/1/2022 8:13:55 AM, 2/19/2022 11:51:48 PM, 2/22/2022 12:12:47 AM falls between 2/13/2022 12:11:49 PM and 2/22/2022 12:12:47 AM.
IsRegressionStdDev: Marked as regression because -8.445002866065812 (T) = (0 -17.037330892704063) / Math.Sqrt((0.02614479828644375 / (60)) + (0.1608719436470951 / (7))) is less than -1.997137908391408 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (60) + (7) - 2, .025) and -0.08207797393030615 = (15.745012192440573 - 17.037330892704063) / 15.745012192440573 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.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


### Run Information

Architecture | x64
-- | --
OS | Windows 10.0.18362
Baseline | [79d478ae01d9a3e7548bf41a76d047158ed8a62b](https://github.com/dotnet/runtime/commit/79d478ae01d9a3e7548bf41a76d047158ed8a62b)
Compare | [4017327955f1d8ddc43980eb1848c52fbb131dfc](https://github.com/dotnet/runtime/commit/4017327955f1d8ddc43980eb1848c52fbb131dfc)
Diff | [Diff](https://github.com/dotnet/runtime/compare/79d478ae01d9a3e7548bf41a76d047158ed8a62b...4017327955f1d8ddc43980eb1848c52fbb131dfc)


### 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_Windows 10.0.18362/System.Tests.Perf_Char.Char_ToLowerInvariant(input%3a%20%22Hello%20World!%22).html>) | 25.24 ns | 32.55 ns | 1.29 | 0.11 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_22_2022/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Tests.Perf_Char_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_22_2022/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Tests.Perf_Char.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_Char*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-1d341975-cf9d-4cd3-8eb9-009394f3f199be7a3533f0c45f8bf/86e94531-ef76-46b8-8e18-5ffc22afbefc.zip?sv=2019-07-07&se=2022-03-21T15%3A10%3A23Z&sr=c&sp=rl&sig=ZMrA9p3kMNvlRzzxu1EmkfpkBhcmacDVYAoI7vSkEp8%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-c643ec35-34c7-48ef-bb73-a888988039ab1ce21666630481682/bb574c2b-049e-430d-a49b-1d2dadb88913.zip?sv=2019-07-07&se=2022-03-22T21%3A19%3A23Z&sr=c&sp=rl&sig=eeD5sBt01Euek8ORW8kEQ7c6Iyvo4gu0TxFeTeeEZXs%3D>)
### Histogram

#### 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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 32.54526634959787 > 26.50541779129425.
IsChangePoint: Marked as a change because one of 1/7/2022 4:24:34 PM, 1/10/2022 3:45:28 PM, 2/2/2022 1:56:18 PM, 2/4/2022 1:40:45 AM, 2/19/2022 11:51:48 PM, 2/22/2022 12:12:47 AM falls between 2/13/2022 12:11:49 PM and 2/22/2022 12:12:47 AM.
IsRegressionStdDev: Marked as regression because -97.30122383938483 (T) = (0 -32.388239397601104) / Math.Sqrt((0.023753986148680066 / (60)) + (0.03382871739777657 / (7))) is less than -1.997137908391408 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (60) + (7) - 2, .025) and -0.27751673417348316 = (25.352497177702624 - 32.388239397601104) / 25.352497177702624 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.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>




Architecture	x64
OS	Windows 10.0.18362
Baseline	79d478ae01d9a3e7548bf41a76d047158ed8a62b
Compare	4017327955f1d8ddc43980eb1848c52fbb131dfc
Diff	Diff

Uh oh!

Regressions in System.Tests.Perf_String and others #65717

Description

Run Information