Regressions in System.IO.Tests.Perf_RandomAccess

### Run Information

Architecture | x64
-- | --
OS | Windows 10.0.18362
Baseline | [a75ea8b3016d3bbace5655606e3a05144cbb15dd](https://github.com/dotnet/runtime/commit/a75ea8b3016d3bbace5655606e3a05144cbb15dd)
Compare | [9ba1b85c4867391730faa5b2661e81e1637dbcc1](https://github.com/dotnet/runtime/commit/9ba1b85c4867391730faa5b2661e81e1637dbcc1)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a75ea8b3016d3bbace5655606e3a05144cbb15dd...9ba1b85c4867391730faa5b2661e81e1637dbcc1)


### Regressions in System.IO.Tests.Perf_RandomAccess

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ReadScatter - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/System.IO.Tests.Perf_RandomAccess.ReadScatter(fileSize%3a%201048576%2c%20buffersSize%3a%2016384%2c%20options%3a%20None).html>) | 446.52 μs | 495.00 μs | 1.11 | 0.11 | False | | |
[Read - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/System.IO.Tests.Perf_RandomAccess.Read(fileSize%3a%20104857600%2c%20bufferSize%3a%2016384%2c%20options%3a%20None).html>) | 26.09 ms | 28.27 ms | 1.08 | 0.07 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_26_2021/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.IO.Tests.Perf_RandomAccess_1.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_26_2021/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.IO.Tests.Perf_RandomAccess_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_26_2021/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.IO.Tests.Perf_RandomAccess.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.IO.Tests.Perf_RandomAccess*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-3bd629e4-be2f-44d2-a037-f0cddd7fc443bea304357a34ca8a0/59eb2101-71a2-4f6d-bcdf-22cd1ede526a.zip?sv=2019-07-07&se=2021-11-21T20%3A43%3A17Z&sr=c&sp=rl&sig=xYcgHozeIDwOa%2F4sEKYgDFgmJ5nmMpILpj0NB%2BXfYg8%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-731e3ccf-7987-4ea7-976a-09cee9d31b315887ada5d9e45ea9f/2e537250-0083-495e-a7ec-f354dc63dee2.zip?sv=2019-07-07&se=2021-11-23T16%3A49%3A45Z&sr=c&sp=rl&sig=poisWMNbd4aAvP7QPo1XTCvEhE9J4ajbAIcFwW76yfc%3D>)
### Histogram

#### System.IO.Tests.Perf_RandomAccess.ReadScatter(fileSize: 1048576, buffersSize: 16384, options: None)

```log

```
#### System.IO.Tests.Perf_RandomAccess.Read(fileSize: 104857600, bufferSize: 16384, options: None)

```log

```


### 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 | [a75ea8b3016d3bbace5655606e3a05144cbb15dd](https://github.com/dotnet/runtime/commit/a75ea8b3016d3bbace5655606e3a05144cbb15dd)
Compare | [9ba1b85c4867391730faa5b2661e81e1637dbcc1](https://github.com/dotnet/runtime/commit/9ba1b85c4867391730faa5b2661e81e1637dbcc1)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a75ea8b3016d3bbace5655606e3a05144cbb15dd...9ba1b85c4867391730faa5b2661e81e1637dbcc1)


### Regressions in System.IO.Tests.Perf_FileStream

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[LockUnlock - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/System.IO.Tests.Perf_FileStream.LockUnlock(fileSize%3a%201024%2c%20options%3a%20None).html>) | 24.13 μs | 29.22 μs | 1.21 | 0.16 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_26_2021/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.IO.Tests.Perf_FileStream_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_26_2021/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.IO.Tests.Perf_FileStream.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.IO.Tests.Perf_FileStream*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-3bd629e4-be2f-44d2-a037-f0cddd7fc443bea304357a34ca8a0/59eb2101-71a2-4f6d-bcdf-22cd1ede526a.zip?sv=2019-07-07&se=2021-11-21T20%3A43%3A17Z&sr=c&sp=rl&sig=xYcgHozeIDwOa%2F4sEKYgDFgmJ5nmMpILpj0NB%2BXfYg8%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-731e3ccf-7987-4ea7-976a-09cee9d31b315887ada5d9e45ea9f/2e537250-0083-495e-a7ec-f354dc63dee2.zip?sv=2019-07-07&se=2021-11-23T16%3A49%3A45Z&sr=c&sp=rl&sig=poisWMNbd4aAvP7QPo1XTCvEhE9J4ajbAIcFwW76yfc%3D>)
### Histogram

#### System.IO.Tests.Perf_FileStream.LockUnlock(fileSize: 1024, options: None)

```log

```


### 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 | [a75ea8b3016d3bbace5655606e3a05144cbb15dd](https://github.com/dotnet/runtime/commit/a75ea8b3016d3bbace5655606e3a05144cbb15dd)
Compare | [9ba1b85c4867391730faa5b2661e81e1637dbcc1](https://github.com/dotnet/runtime/commit/9ba1b85c4867391730faa5b2661e81e1637dbcc1)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a75ea8b3016d3bbace5655606e3a05144cbb15dd...9ba1b85c4867391730faa5b2661e81e1637dbcc1)


### Regressions in System.IO.Tests.Perf_Directory

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[CreateDirectory - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/System.IO.Tests.Perf_Directory.CreateDirectory.html>) | 123.56 μs | 141.58 μs | 1.15 | 0.13 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_26_2021/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.IO.Tests.Perf_Directory_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_26_2021/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.IO.Tests.Perf_Directory.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.IO.Tests.Perf_Directory*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-3bd629e4-be2f-44d2-a037-f0cddd7fc443bea304357a34ca8a0/59eb2101-71a2-4f6d-bcdf-22cd1ede526a.zip?sv=2019-07-07&se=2021-11-21T20%3A43%3A17Z&sr=c&sp=rl&sig=xYcgHozeIDwOa%2F4sEKYgDFgmJ5nmMpILpj0NB%2BXfYg8%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-731e3ccf-7987-4ea7-976a-09cee9d31b315887ada5d9e45ea9f/2e537250-0083-495e-a7ec-f354dc63dee2.zip?sv=2019-07-07&se=2021-11-23T16%3A49%3A45Z&sr=c&sp=rl&sig=poisWMNbd4aAvP7QPo1XTCvEhE9J4ajbAIcFwW76yfc%3D>)
### Histogram

#### System.IO.Tests.Perf_Directory.CreateDirectory

```log

```


### 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 | [a75ea8b3016d3bbace5655606e3a05144cbb15dd](https://github.com/dotnet/runtime/commit/a75ea8b3016d3bbace5655606e3a05144cbb15dd)
Compare | [9ba1b85c4867391730faa5b2661e81e1637dbcc1](https://github.com/dotnet/runtime/commit/9ba1b85c4867391730faa5b2661e81e1637dbcc1)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a75ea8b3016d3bbace5655606e3a05144cbb15dd...9ba1b85c4867391730faa5b2661e81e1637dbcc1)


### Regressions in Exceptions.Handling

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ThrowAndCatch_ManyCatchBlocks - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/Exceptions.Handling.ThrowAndCatch_ManyCatchBlocks(kind%3a%20ReflectionHardware).html>) | 139.65 μs | 164.43 μs | 1.18 | 0.12 | False | | |
[ThrowAndCatch_ManyCatchBlocks - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/Exceptions.Handling.ThrowAndCatch_ManyCatchBlocks(kind%3a%20ReflectionSoftware).html>) | 123.29 μs | 151.48 μs | 1.23 | 0.10 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_26_2021/refs/heads/main_x64_Windows%2010.0.18362_Regression/Exceptions.Handling_1.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_26_2021/refs/heads/main_x64_Windows%2010.0.18362_Regression/Exceptions.Handling_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_26_2021/refs/heads/main_x64_Windows%2010.0.18362_Regression/Exceptions.Handling.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'Exceptions.Handling*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-3bd629e4-be2f-44d2-a037-f0cddd7fc443bea304357a34ca8a0/59eb2101-71a2-4f6d-bcdf-22cd1ede526a.zip?sv=2019-07-07&se=2021-11-21T20%3A43%3A17Z&sr=c&sp=rl&sig=xYcgHozeIDwOa%2F4sEKYgDFgmJ5nmMpILpj0NB%2BXfYg8%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-731e3ccf-7987-4ea7-976a-09cee9d31b315887ada5d9e45ea9f/2e537250-0083-495e-a7ec-f354dc63dee2.zip?sv=2019-07-07&se=2021-11-23T16%3A49%3A45Z&sr=c&sp=rl&sig=poisWMNbd4aAvP7QPo1XTCvEhE9J4ajbAIcFwW76yfc%3D>)
### Histogram

#### Exceptions.Handling.ThrowAndCatch_ManyCatchBlocks(kind: ReflectionHardware)

```log

```
#### Exceptions.Handling.ThrowAndCatch_ManyCatchBlocks(kind: ReflectionSoftware)

```log

```


### 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 | [a75ea8b3016d3bbace5655606e3a05144cbb15dd](https://github.com/dotnet/runtime/commit/a75ea8b3016d3bbace5655606e3a05144cbb15dd)
Compare | [9ba1b85c4867391730faa5b2661e81e1637dbcc1](https://github.com/dotnet/runtime/commit/9ba1b85c4867391730faa5b2661e81e1637dbcc1)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a75ea8b3016d3bbace5655606e3a05144cbb15dd...9ba1b85c4867391730faa5b2661e81e1637dbcc1)


### Regressions in System.Xml.Linq.Perf_XElementList

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Enumerator - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/System.Xml.Linq.Perf_XElementList.Enumerator.html>) | 288.36 ns | 303.76 ns | 1.05 | 0.06 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_26_2021/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Xml.Linq.Perf_XElementList_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/10_26_2021/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Xml.Linq.Perf_XElementList.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Xml.Linq.Perf_XElementList*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-3bd629e4-be2f-44d2-a037-f0cddd7fc443bea304357a34ca8a0/59eb2101-71a2-4f6d-bcdf-22cd1ede526a.zip?sv=2019-07-07&se=2021-11-21T20%3A43%3A17Z&sr=c&sp=rl&sig=xYcgHozeIDwOa%2F4sEKYgDFgmJ5nmMpILpj0NB%2BXfYg8%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-731e3ccf-7987-4ea7-976a-09cee9d31b315887ada5d9e45ea9f/2e537250-0083-495e-a7ec-f354dc63dee2.zip?sv=2019-07-07&se=2021-11-23T16%3A49%3A45Z&sr=c&sp=rl&sig=poisWMNbd4aAvP7QPo1XTCvEhE9J4ajbAIcFwW76yfc%3D>)
### Histogram

#### System.Xml.Linq.Perf_XElementList.Enumerator

```log

```


### 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	a75ea8b3016d3bbace5655606e3a05144cbb15dd
Compare	9ba1b85c4867391730faa5b2661e81e1637dbcc1
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ReadScatter - Duration of single invocation	446.52 μs	495.00 μs	1.11	0.11	False
Read - Duration of single invocation	26.09 ms	28.27 ms	1.08	0.07	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ThrowAndCatch_ManyCatchBlocks - Duration of single invocation	139.65 μs	164.43 μs	1.18	0.12	False
ThrowAndCatch_ManyCatchBlocks - Duration of single invocation	123.29 μs	151.48 μs	1.23	0.10	False

Uh oh!

Regressions in System.IO.Tests.Perf_RandomAccess #60869

Description

Run Information