Performance regressions due to GC Regions

### Run Information

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [fe8422cdff450941bc3ba4b120576e8822459df4](https://github.com/dotnet/runtime/commit/fe8422cdff450941bc3ba4b120576e8822459df4)
Compare | [ef7ff071099d185a5f66b55966866fcc964e287c](https://github.com/dotnet/runtime/commit/ef7ff071099d185a5f66b55966866fcc964e287c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/fe8422cdff450941bc3ba4b120576e8822459df4...ef7ff071099d185a5f66b55966866fcc964e287c)


### Regressions in BenchmarksGame.KNucleotide_9

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[RunBench - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/BenchmarksGame.KNucleotide_9.RunBench.html>) | 56.91 ms | 62.13 ms | 1.09 | 0.08 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/01_18_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/BenchmarksGame.KNucleotide_9_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/01_18_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/BenchmarksGame.KNucleotide_9.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'BenchmarksGame.KNucleotide_9*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-947883cd-ea23-45c5-890a-3818de4c297c46edb7c3eb14f64b9/b20725a5-e29d-4810-8777-bf1e4a627229.zip?sv=2019-07-07&se=2022-02-10T13%3A44%3A10Z&sr=c&sp=rl&sig=x0JH8YoN8zTMzlQ3%2FAoizzv3%2FFXr%2BT23Rf43BitNEZE%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-7554f1a6-4415-4874-8171-407590154c9bfe98a7514774e9da9/5aba1ad5-95e2-4d58-8efc-dd2c4ac319fc.zip?sv=2019-07-07&se=2022-02-11T06%3A57%3A05Z&sr=c&sp=rl&sig=jnOFcxOpx31WcTbxzHOJDOFj1Ef7NvNEuHhA5uIMmAA%3D>)
### Histogram

#### BenchmarksGame.KNucleotide_9.RunBench

```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 62.132452575 > 59.921577299062506.
IsChangePoint: Marked as a change because one of 12/7/2021 9:49:54 AM, 1/11/2022 2:18:34 PM, 1/18/2022 5:19:20 AM falls between 1/8/2022 8:22:56 PM and 1/18/2022 5:19:20 AM.
IsRegressionStdDev: Marked as regression because -22.718367898215927 (T) = (0 -62105451.3935966) / Math.Sqrt((395282169985.69183 / (32)) + (919908986491.3501 / (33))) is less than -1.9983405425199077 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (33) - 2, .025) and -0.07917867059962681 = (57548812.89405839 - 62105451.3935966) / 57548812.89405839 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 | ubuntu 18.04
Baseline | [fe8422cdff450941bc3ba4b120576e8822459df4](https://github.com/dotnet/runtime/commit/fe8422cdff450941bc3ba4b120576e8822459df4)
Compare | [ef7ff071099d185a5f66b55966866fcc964e287c](https://github.com/dotnet/runtime/commit/ef7ff071099d185a5f66b55966866fcc964e287c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/fe8422cdff450941bc3ba4b120576e8822459df4...ef7ff071099d185a5f66b55966866fcc964e287c)


### Regressions in System.Collections.CtorFromCollectionNonGeneric&lt;Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Queue - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Collections.CtorFromCollectionNonGeneric(Int32).Queue(Size%3a%20512).html>) | 23.05 μs | 24.77 μs | 1.07 | 0.00 | False | | |
[Stack - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Collections.CtorFromCollectionNonGeneric(Int32).Stack(Size%3a%20512).html>) | 21.92 μs | 23.80 μs | 1.09 | 0.03 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/01_18_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Collections.CtorFromCollectionNonGeneric(Int32)_1.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/01_18_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Collections.CtorFromCollectionNonGeneric(Int32)_2.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/01_18_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Collections.CtorFromCollectionNonGeneric(Int32).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.CtorFromCollectionNonGeneric&lt;Int32&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-947883cd-ea23-45c5-890a-3818de4c297c46edb7c3eb14f64b9/b20725a5-e29d-4810-8777-bf1e4a627229.zip?sv=2019-07-07&se=2022-02-10T13%3A44%3A10Z&sr=c&sp=rl&sig=x0JH8YoN8zTMzlQ3%2FAoizzv3%2FFXr%2BT23Rf43BitNEZE%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-7554f1a6-4415-4874-8171-407590154c9bfe98a7514774e9da9/5aba1ad5-95e2-4d58-8efc-dd2c4ac319fc.zip?sv=2019-07-07&se=2022-02-11T06%3A57%3A05Z&sr=c&sp=rl&sig=jnOFcxOpx31WcTbxzHOJDOFj1Ef7NvNEuHhA5uIMmAA%3D>)
### Histogram

#### System.Collections.CtorFromCollectionNonGeneric&lt;Int32&gt;.Queue(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 24.767194148235916 > 24.231584690585265.
IsChangePoint: Marked as a change because one of 1/11/2022 2:18:34 PM, 1/18/2022 5:19:20 AM falls between 1/8/2022 8:22:56 PM and 1/18/2022 5:19:20 AM.
IsRegressionStdDev: Marked as regression because -32.38804485194529 (T) = (0 -24850.402096972426) / Math.Sqrt((15720.062709109392 / (32)) + (83195.71292542249 / (33))) is less than -1.9983405425199077 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (33) - 2, .025) and -0.07704352403223026 = (23072.792828220732 - 24850.402096972426) / 23072.792828220732 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.

```#### System.Collections.CtorFromCollectionNonGeneric&lt;Int32&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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 23.796464449949188 > 22.789753051162776.
IsChangePoint: Marked as a change because one of 1/11/2022 2:18:34 PM, 1/18/2022 5:19:20 AM falls between 1/8/2022 8:22:56 PM and 1/18/2022 5:19:20 AM.
IsRegressionStdDev: Marked as regression because -19.54017533902972 (T) = (0 -23993.40668573774) / Math.Sqrt((29843.46554165946 / (32)) + (399530.12372097117 / (33))) is less than -1.9983405425199077 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (33) - 2, .025) and -0.10253203806089282 = (21762.094757751234 - 23993.40668573774) / 21762.094757751234 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 | ubuntu 18.04
Baseline | [fe8422cdff450941bc3ba4b120576e8822459df4](https://github.com/dotnet/runtime/commit/fe8422cdff450941bc3ba4b120576e8822459df4)
Compare | [ef7ff071099d185a5f66b55966866fcc964e287c](https://github.com/dotnet/runtime/commit/ef7ff071099d185a5f66b55966866fcc964e287c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/fe8422cdff450941bc3ba4b120576e8822459df4...ef7ff071099d185a5f66b55966866fcc964e287c)


### Regressions in System.Tests.Perf_GC&lt;Byte&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[NewOperator_Array - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Tests.Perf_GC(Byte).NewOperator_Array(length%3a%201000).html>) | 33.53 ns | 35.75 ns | 1.07 | 0.06 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/01_18_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Tests.Perf_GC(Byte)_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/01_18_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Tests.Perf_GC(Byte).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_GC&lt;Byte&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-947883cd-ea23-45c5-890a-3818de4c297c46edb7c3eb14f64b9/b20725a5-e29d-4810-8777-bf1e4a627229.zip?sv=2019-07-07&se=2022-02-10T13%3A44%3A10Z&sr=c&sp=rl&sig=x0JH8YoN8zTMzlQ3%2FAoizzv3%2FFXr%2BT23Rf43BitNEZE%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-7554f1a6-4415-4874-8171-407590154c9bfe98a7514774e9da9/5aba1ad5-95e2-4d58-8efc-dd2c4ac319fc.zip?sv=2019-07-07&se=2022-02-11T06%3A57%3A05Z&sr=c&sp=rl&sig=jnOFcxOpx31WcTbxzHOJDOFj1Ef7NvNEuHhA5uIMmAA%3D>)
### Histogram

#### System.Tests.Perf_GC&lt;Byte&gt;.NewOperator_Array(length: 1000)

```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 35.75326767840259 > 35.15473559389209.
IsChangePoint: Marked as a change because one of 1/11/2022 2:18:34 PM, 1/18/2022 5:19:20 AM falls between 1/8/2022 8:22:56 PM and 1/18/2022 5:19:20 AM.
IsRegressionStdDev: Marked as regression because -17.408231406640766 (T) = (0 -35.88087983769851) / Math.Sqrt((0.4308079323728019 / (32)) + (0.2601888585838306 / (33))) is less than -1.9983405425199077 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (33) - 2, .025) and -0.07629459721512617 = (33.3374151747477 - 35.88087983769851) / 33.3374151747477 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 | ubuntu 18.04
Baseline | [fe8422cdff450941bc3ba4b120576e8822459df4](https://github.com/dotnet/runtime/commit/fe8422cdff450941bc3ba4b120576e8822459df4)
Compare | [ef7ff071099d185a5f66b55966866fcc964e287c](https://github.com/dotnet/runtime/commit/ef7ff071099d185a5f66b55966866fcc964e287c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/fe8422cdff450941bc3ba4b120576e8822459df4...ef7ff071099d185a5f66b55966866fcc964e287c)


### Regressions in System.Diagnostics.Perf_Activity

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ActivityAllocations - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Diagnostics.Perf_Activity.ActivityAllocations(idFormat%3a%20Hierarchical).html>) | 157.30 ns | 175.74 ns | 1.12 | 0.03 | True | | |
[EnumerateActivityLinkTagsLarge - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Diagnostics.Perf_Activity.EnumerateActivityLinkTagsLarge.html>) | 9.47 μs | 10.39 μs | 1.10 | 0.04 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/01_18_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Diagnostics.Perf_Activity_1.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/01_18_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Diagnostics.Perf_Activity_2.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/01_18_2022/refs/heads/main_x64_ubuntu%2018.04_Regression/System.Diagnostics.Perf_Activity.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Diagnostics.Perf_Activity*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-947883cd-ea23-45c5-890a-3818de4c297c46edb7c3eb14f64b9/b20725a5-e29d-4810-8777-bf1e4a627229.zip?sv=2019-07-07&se=2022-02-10T13%3A44%3A10Z&sr=c&sp=rl&sig=x0JH8YoN8zTMzlQ3%2FAoizzv3%2FFXr%2BT23Rf43BitNEZE%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-7554f1a6-4415-4874-8171-407590154c9bfe98a7514774e9da9/5aba1ad5-95e2-4d58-8efc-dd2c4ac319fc.zip?sv=2019-07-07&se=2022-02-11T06%3A57%3A05Z&sr=c&sp=rl&sig=jnOFcxOpx31WcTbxzHOJDOFj1Ef7NvNEuHhA5uIMmAA%3D>)
### Histogram

#### System.Diagnostics.Perf_Activity.ActivityAllocations(idFormat: Hierarchical)

```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 175.74116709608057 > 164.34910749867822.
IsChangePoint: Marked as a change because one of 1/11/2022 2:18:34 PM, 1/18/2022 5:19:20 AM falls between 1/8/2022 8:22:56 PM and 1/18/2022 5:19:20 AM.
IsRegressionStdDev: Marked as regression because -31.019760794326274 (T) = (0 -179.71304496587595) / Math.Sqrt((7.147932236036577 / (32)) + (9.979676620655603 / (33))) is less than -1.9983405425199077 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (33) - 2, .025) and -0.14306553699152283 = (157.22024604019597 - 179.71304496587595) / 157.22024604019597 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 as regression because Edge Detector said so.

```#### System.Diagnostics.Perf_Activity.EnumerateActivityLinkTagsLarge

```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 10.392829875135723 > 9.942452779283839.
IsChangePoint: Marked as a change because one of 12/16/2021 8:45:41 PM, 1/12/2022 5:25:46 AM, 1/18/2022 5:19:20 AM falls between 1/8/2022 8:22:56 PM and 1/18/2022 5:19:20 AM.
IsRegressionStdDev: Marked as regression because -9.311624945530044 (T) = (0 -9863.282544360974) / Math.Sqrt((17788.074286222753 / (34)) + (92154.89737234468 / (31))) is less than -1.9983405425199077 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (34) + (31) - 2, .025) and -0.059119325068669744 = (9312.720777445424 - 9863.282544360974) / 9312.720777445424 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	ubuntu 18.04
Baseline	fe8422cdff450941bc3ba4b120576e8822459df4
Compare	ef7ff071099d185a5f66b55966866fcc964e287c
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Queue - Duration of single invocation	23.05 μs	24.77 μs	1.07	0.00	False
Stack - Duration of single invocation	21.92 μs	23.80 μs	1.09	0.03	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ActivityAllocations - Duration of single invocation	157.30 ns	175.74 ns	1.12	0.03	True
EnumerateActivityLinkTagsLarge - Duration of single invocation	9.47 μs	10.39 μs	1.10	0.04	False

Performance regressions due to GC Regions #63930

Description

Run Information

Regressions in BenchmarksGame.KNucleotide_9

Repro

Payloads

Histogram

BenchmarksGame.KNucleotide_9.RunBench

Description of detection logic

Docs

Regressions in System.Collections.CtorFromCollectionNonGeneric<Int32>

Repro

Payloads

Histogram

System.Collections.CtorFromCollectionNonGeneric<Int32>.Queue(Size: 512)

Description of detection logic

Description of detection logic

Docs

Run Information

Regressions in System.Tests.Perf_GC<Byte>

Repro

Payloads

Histogram

System.Tests.Perf_GC<Byte>.NewOperator_Array(length: 1000)

Description of detection logic

Docs

Run Information

Regressions in System.Diagnostics.Perf_Activity

Repro

Payloads

Histogram

System.Diagnostics.Perf_Activity.ActivityAllocations(idFormat: Hierarchical)

Description of detection logic

Description of detection logic

Docs

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