Regressions in System.IO.Tests.Perf_RandomAccess

### Run Information

Architecture | arm64
-- | --
OS | Windows 10.0.19041
Baseline | [20294957616061616e672b43f1d962460b7f4234](https://github.com/dotnet/runtime/commit/20294957616061616e672b43f1d962460b7f4234)
Compare | [eb57c1276add1ec7e35897bfdbbebb648839dee3](https://github.com/dotnet/runtime/commit/eb57c1276add1ec7e35897bfdbbebb648839dee3)
Diff | [Diff](https://github.com/dotnet/runtime/compare/20294957616061616e672b43f1d962460b7f4234...eb57c1276add1ec7e35897bfdbbebb648839dee3)


### 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
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ReadScatterAsync - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.19041/System.IO.Tests.Perf_RandomAccess.ReadScatterAsync(fileSize%3a%201048576%2c%20buffersSize%3a%2016384%2c%20options%3a%20Asynchronous).html>) | 4.82 ms | 5.16 ms | 1.07 | 0.00 | True | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/03_09_2022/refs/heads/main_arm64_Windows%2010.0.19041_Regression/System.IO.Tests.Perf_RandomAccess_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/03_09_2022/refs/heads/main_arm64_Windows%2010.0.19041_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-12034e65-4e29-4364-899f-623f4874d9e8d48ca1d751749d4b5/8e02b52a-bca0-4c73-a289-96229a29574b.zip?sv=2019-07-07&se=2022-04-03T07%3A05%3A52Z&sr=c&sp=rl&sig=n9moGxUcMCHuWH0Z22oF9k0dZ9kqDkKF8n2fzEmEFsQ%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-21ef7fb2-f3db-4de5-97dd-0083d69731d4a4da344c7054744b2/f16947c4-9f63-401e-b87a-13dc56fce54c.zip?sv=2019-07-07&se=2022-04-04T07%3A30%3A47Z&sr=c&sp=rl&sig=JMLGvnhbY%2Fj52ieQ4ECEhSdf9NcFXyxE6bWuL9YPWaQ%3D>)
### Histogram

#### System.IO.Tests.Perf_RandomAccess.ReadScatterAsync(fileSize: 1048576, buffersSize: 16384, options: Asynchronous)

```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 5.163939665653496 > 5.0542304047888384.
IsChangePoint: Marked as a change because one of 3/4/2022 11:33:07 AM, 3/9/2022 10:55:02 PM falls between 3/1/2022 6:59:52 AM and 3/9/2022 10:55:02 PM.
IsRegressionStdDev: Marked as regression because -33.52572914974136 (T) = (0 -5232528.847938628) / Math.Sqrt((2003371671.5500438 / (19)) + (1359554745.640083 / (18))) is less than -2.0301079282477414 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (18) - 2, .025) and -0.0943228896693405 = (4781521.886579274 - 5232528.847938628) / 4781521.886579274 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.

```

### 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>



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Regressions in System.IO.Tests.Perf_RandomAccess #66465

Run Information