[Perf] Alpine/x64: 2 Improvements on 4/1/2023 1:59:52 PM

[performanceautofiler]

Run Information

Name	Value
Architecture	x64
OS	alpine 3.15
Queue	TigerAlpine
Baseline	d6455cbed88e3889dfa62afbc8bf73480aab61a5
Compare	e65ebc920e766c1644e621875c20e4b1c6875a83
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Improvements in System.Tests.Perf_Guid

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Parse - Duration of single invocation	22.96 ns	20.41 ns	0.89	0.06	False
ctor_str - Duration of single invocation	22.81 ns	20.43 ns	0.90	0.04	False

Test Report

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

Payloads

Baseline
Compare

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Guid*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_Guid.Parse

Description of detection logic

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.
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 20.410458262240944 < 21.789197879929866.
IsChangePoint: Marked as a change because one of 4/1/2023 1:31:30 PM, 4/3/2023 9:14:01 PM falls between 3/26/2023 7:47:31 AM and 4/3/2023 9:14:01 PM.
IsImprovementStdDev: Marked as improvement because 25.73633890820515 (T) = (0 -20.56757462288823) / Math.Sqrt((0.36071545724815596 / (299)) + (0.06465443816474167 / (9))) is greater than 1.9677467375895035 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (9) - 2, .975) and 0.1028311884895509 = (22.92497728299451 - 20.56757462288823) / 22.92497728299451 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

System.Tests.Perf_Guid.ctor_str

Description of detection logic

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.
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 20.434923076923077 < 21.69198756823674.
IsChangePoint: Marked as a change because one of 4/1/2023 1:31:30 PM, 4/3/2023 9:14:01 PM falls between 3/26/2023 7:47:31 AM and 4/3/2023 9:14:01 PM.
IsImprovementStdDev: Marked as improvement because 30.259360680032056 (T) = (0 -20.498531884943347) / Math.Sqrt((0.32271607276398334 / (299)) + (0.045739933741056435 / (9))) is greater than 1.9677467375895035 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (9) - 2, .975) and 0.10384048200337956 = (22.873753470551936 - 20.498531884943347) / 22.873753470551936 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

[kunalspathak]

dotnet/runtime#83945 dotnet/runtime#84200