[Perf] Changes at 1/5/2022 11:37:43 PM

[performanceautofiler]

Run Information

Architecture	arm64
OS	ubuntu 18.04
Baseline	70065c1b180ebe66dcf68ce03a47e54c23135d79
Compare	abb7df59eb4f8c813c07ddd6f46f94e59604577d
Diff	Diff

Improvements in System.Collections.Concurrent.Count<Int32>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Queue - Duration of single invocation	64.69 ns	37.74 ns	0.58	0.05	True

Test Report

Repro

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

Payloads

Baseline
Compare

Histogram

System.Collections.Concurrent.Count<Int32>.Queue(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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 1/5/2022 6:46:20 PM, 1/11/2022 6:41:22 PM falls between 1/3/2022 4:56:39 AM and 1/11/2022 6:41:22 PM.
IsImprovementStdDev: Marked as improvement because 17.45249565525484 (T) = (0 -41.558769391784296) / Math.Sqrt((0.7736120949213616 / (299)) + (14.40722525734269 / (8))) is greater than 1.967772354556772 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (8) - 2, .975) and 0.360599308325439 = (64.99644109383709 - 41.558769391784296) / 64.99644109383709 is greater than 0.05.
IsChangeEdgeDetector: Marked as regression because Edge Detector said so.

Docs

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