[Perf] Changes at 5/10/2022 5:59:50 PM

[performanceautofiler]

Run Information

Architecture	arm64
OS	ubuntu 18.04
Baseline	faa59aec0178cacf8f104b30151cfd60d4c903a3
Compare	6d2340542176acce320a932084febaed4fd9da5b
Diff	Diff

Regressions in System.Text.Encodings.Web.Tests.Perf_Encoders

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
EncodeUtf8 - Duration of single invocation	90.18 ns	102.07 ns	1.13	0.51	False

Test Report

Repro

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

Payloads

Baseline
Compare

Histogram

System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf8(arguments: Url,�2020,16)

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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 102.06848330424003 > 89.92790167925956.
IsChangePoint: Marked as a change because one of 5/10/2022 11:18:06 AM, 5/18/2022 4:10:31 AM falls between 5/9/2022 3:38:36 PM and 5/18/2022 4:10:31 AM.
IsRegressionStdDev: Marked as regression because -3.9512438042383957 (T) = (0 -111.52767776197747) / Math.Sqrt((193.6740242859981 / (14)) + (222.18552322851988 / (32))) is less than -2.0153675744421933 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (14) + (32) - 2, .025) and -0.1925908747442546 = (93.5171315862148 - 111.52767776197747) / 93.5171315862148 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
Benchmarking workflow for dotnet/runtime repository

[AndyAyersMS]

Likely from dotnet/runtime#68869, fixed by dotnet/runtime#70144