Regressions in System.Buffers.Text.Tests.Utf8FormatterTests

### Run Information

Architecture | arm64
-- | --
OS | ubuntu 20.04
Baseline | [7568ca398689b60841a9753f2777e5b3407a6d45](https://github.com/dotnet/runtime/commit/7568ca398689b60841a9753f2777e5b3407a6d45)
Compare | [64f7fab10afa8dc7fca817a554070607648eae38](https://github.com/dotnet/runtime/commit/64f7fab10afa8dc7fca817a554070607648eae38)
Diff | [Diff](https://github.com/dotnet/runtime/compare/7568ca398689b60841a9753f2777e5b3407a6d45...64f7fab10afa8dc7fca817a554070607648eae38)


### Regressions in System.Buffers.Text.Tests.Utf8FormatterTests

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[FormatterInt32 - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Buffers.Text.Tests.Utf8FormatterTests.FormatterInt32(value%3a%204).html>) | 1.83 ns | 4.71 ns | 2.58 | 0.54 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/01_26_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Buffers.Text.Tests.Utf8FormatterTests_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/01_26_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Buffers.Text.Tests.Utf8FormatterTests.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Buffers.Text.Tests.Utf8FormatterTests*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-4a442c4f-0628-4735-bd07-bdcd83fff0884fe764fb7d54b2eb9/27a62513-e4ee-4e82-991e-c053769c6c1d.zip?sv=2021-08-06&se=2023-02-19T23%3A57%3A09Z&sr=c&sp=rl&sig=LgH%2Frxh%2FBHx6zXJm8zrkxr5Bm5SPAZCM%2BNJaMv%2F8Wgk%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-1b69f641-dd0e-4a11-b85a-b97eb26c963125cb7bcd16d4b0992/8e8187d7-010b-40e8-8ad7-f5b02e6052db.zip?sv=2021-08-06&se=2023-02-20T19%3A26%3A30Z&sr=c&sp=rl&sig=fEY7KBnY%2BA1KfblAVmJObdxfp3dhSpdXrvcy%2FsXM7sc%3D>)
### Histogram

#### System.Buffers.Text.Tests.Utf8FormatterTests.FormatterInt32(value: 4)

```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 4.705460713835775 > 1.9172362760235513.
IsChangePoint: Marked as a change because one of 1/21/2023 1:51:00 AM, 1/25/2023 11:59:01 PM falls between 1/17/2023 11:08:46 AM and 1/25/2023 11:59:01 PM.
IsRegressionStdDev: Marked as regression because -17.948001637125667 (T) = (0 -5.15830760168831) / Math.Sqrt((0.4702231425596768 / (26)) + (0.08762632214038191 / (17))) is less than -2.019540970439573 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (26) + (17) - 2, .025) and -1.1296012944001799 = (2.422194058226843 - 5.15830760168831) / 2.422194058226843 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>


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Regressions in System.Buffers.Text.Tests.Utf8FormatterTests #81228

Run Information