[Perf] Changes at 11/22/2021 8:11:44 PM

[performanceautofiler]

Run Information

Architecture	x64
OS	ubuntu 18.04
Baseline	f1edeedb68ce1e6d4dc93a2d79d82a0c2f69e3ce
Compare	48fe63793040eaee87bdb26ee7d19636527efa3b
Diff	Diff

Improvements in System.Collections.ContainsFalse<Int32>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Span - Duration of single invocation	75.02 μs	17.37 μs	0.23	0.02	False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.ContainsFalse<Int32>*'

Payloads

Baseline
Compare

Histogram

System.Collections.ContainsFalse<Int32>.Span(Size: 512)

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 17.367438293100257 < 69.90789977105628.
IsChangePoint: Marked as a change because one of 11/22/2021 6:07:11 PM, 11/23/2021 6:42:08 AM falls between 11/14/2021 12:07:47 PM and 11/23/2021 6:42:08 AM.
IsImprovementStdDev: Marked as improvement because 839.7604651860436 (T) = (0 -17365.649916226055) / Math.Sqrt((1285217.2156856095 / (299)) + (6.3965836883688665 / (2))) is greater than 1.9679296690655894 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (2) - 2, .975) and 0.7602838908013047 = (72442.5653923494 - 17365.649916226055) / 72442.5653923494 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