[Perf] Linux/x64: 2 Regressions on 11/4/2022 2:24:58 AM

[performanceautofiler]

Run Information

Architecture	x64
OS	ubuntu 18.04
Baseline	9a138bf5cb4a9055e4e0370a3eb3883514555fcd
Compare	d3198e08ed76c1890048c32598275516ac67f519
Diff	Diff

Regressions in System.Tests.Perf_Enum

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Parse - Duration of single invocation	3.50 μs	4.04 μs	1.16	0.02	False
Parse - Duration of single invocation	1.75 μs	2.35 μs	1.34	0.01	False

Test Report

Repro

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

Related Issues

Regressions

Improvements

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Tests.Perf_Enum.Parse(text: "Red, Orange, Yellow, Green, Blue")

Description of detection logic

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.
IsRegressionWindowed: Marked as regression because 4.042615457957958 > 3.663957797946361.
IsChangePoint: Marked as a change because one of 10/11/2022 6:23:40 AM, 11/2/2022 4:25:40 PM, 11/9/2022 12:33:05 PM falls between 10/31/2022 10:23:25 PM and 11/9/2022 12:33:05 PM.
IsRegressionStdDev: Marked as regression because -23.533037504777596 (T) = (0 -4110.069504832147) / Math.Sqrt((1260.4177787743124 / (21)) + (14170.454302842225 / (22))) is less than -2.019540970439573 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (21) + (22) - 2, .025) and -0.17915386011827372 = (3485.609167594033 - 4110.069504832147) / 3485.609167594033 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_Enum.Parse(text: "Red")

```log

Description of detection logic

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.
IsRegressionWindowed: Marked as regression because 2.3472273457168673 > 1.8546446580003118.
IsChangePoint: Marked as a change because one of 10/10/2022 3:36:43 PM, 11/2/2022 4:25:40 PM, 11/9/2022 12:33:05 PM falls between 10/31/2022 10:23:25 PM and 11/9/2022 12:33:05 PM.
IsRegressionStdDev: Marked as regression because -84.98394278999088 (T) = (0 -2352.9473955210738) / Math.Sqrt((412.63687148997013 / (21)) + (631.3137273182855 / (22))) is less than -2.019540970439573 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (21) + (22) - 2, .025) and -0.335349254391315 = (1762.0464367530612 - 2352.9473955210738) / 1762.0464367530612 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

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

[kotlarmilos]

Regression in 5d0943f

[dotnet-issue-labeler]

I couldn't figure out the best area label to add to this issue. If you have write-permissions please help me learn by adding exactly one area label.

[vargaz]

Will be fixed by
#78840