[Perf] Linux/arm64: 1 Regression on 10/31/2022 10:23:25 PM

[performanceautofiler]

Run Information

Architecture	arm64
OS	ubuntu 20.04
Baseline	3d9d78c63c5ad9a2ed15b2c863f989a8cef2a8b9
Compare	7d5efbb9e10b6d8beb91c90cbdefd7360869cece
Diff	Diff

Regressions in System.Collections.TryGetValueFalse<String, String>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ImmutableDictionary - Duration of single invocation	60.11 μs	63.56 μs	1.06	0.43	False

Test Report

Repro

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

Related Issues

Regressions

• [Perf] Windows/x64: 2 Regressions on 10/31/2022 10:23:25 PM
• [Perf] Windows/x86: 1 Regression on 10/31/2022 10:23:25 PM
• [Perf] Linux/x64: 4 Regressions on 10/31/2022 10:23:25 PM
• [Perf] Alpine/x64: 3 Regressions on 10/31/2022 10:23:25 PM

Improvements

• [Perf] Windows/x86: 3 Improvements on 10/31/2022 10:23:25 PM
• [Perf] Linux/x64: 1 Improvement on 10/31/2022 10:23:25 PM

Payloads

Baseline
Compare

Histogram

Edge Detector Info

Collection Data

System.Collections.TryGetValueFalse<String, String>.ImmutableDictionary(Size: 512)

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 63.55756756315332 > 62.995787134818016.
IsChangePoint: Marked as a change because one of 10/25/2022 1:30:53 PM, 10/31/2022 6:57:36 PM, 11/7/2022 8:57:30 PM falls between 10/30/2022 12:44:54 AM and 11/7/2022 8:57:30 PM.
IsRegressionStdDev: Marked as regression because -7.727844034987664 (T) = (0 -64245.04181474754) / Math.Sqrt((385307.84118996595 / (16)) + (6755023.479543163 / (27))) is less than -2.019540970439573 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (16) + (27) - 2, .025) and -0.06723017401929454 = (60197.92485138829 - 64245.04181474754) / 60197.92485138829 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