[Perf] Changes at 7/8/2022 4:13:41 PM

[performanceautofiler]

Run Information

Architecture	x64
OS	ubuntu 18.04
Baseline	0ab2c1e92e2383b3969688ede5bbcf106527bbcb
Compare	9a0eec0ec08e861d8c477373604ec2a84800a994
Diff	Diff

Improvements in System.Formats.Tar.Tests.Perf_TarFile

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ExtractToDirectory_Stream - Duration of single invocation	40.32 μs	34.73 μs	0.86	0.07	False
ExtractToDirectory_Path - Duration of single invocation	42.25 μs	36.02 μs	0.85	0.06	False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Formats.Tar.Tests.Perf_TarFile*'

Payloads

Baseline
Compare

Histogram

System.Formats.Tar.Tests.Perf_TarFile.ExtractToDirectory_Stream

Description of detection logic

IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 34.725284946986605 < 37.15445698974317.
IsChangePoint: Marked as a change because one of 6/20/2022 11:14:52 PM, 7/8/2022 12:50:30 PM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 24.84043450162248 (T) = (0 -35699.34748865686) / Math.Sqrt((1962353.1671452841 / (299)) + (611699.4591567933 / (24))) is greater than 1.967381707010986 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (24) - 2, .975) and 0.11077192298398024 = (40146.44657696039 - 35699.34748865686) / 40146.44657696039 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Formats.Tar.Tests.Perf_TarFile.ExtractToDirectory_Path

```log

Description of detection logic

IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 36.01926973180076 < 38.5337886953163.
IsChangePoint: Marked as a change because one of 6/20/2022 7:45:04 PM, 7/7/2022 7:02:29 PM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 26.53624214322982 (T) = (0 -36757.00362867594) / Math.Sqrt((1768090.041171419 / (299)) + (761857.6917819985 / (30))) is greater than 1.9672451058622664 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (30) - 2, .975) and 0.11327176985734239 = (41452.38910772294 - 36757.00362867594) / 41452.38910772294 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

[AndyAyersMS]

Either dotnet/runtime#71760 or dotnet/runtime#71647