[Perf] Windows/x64: 1 Improvement on 10/10/2023 11:35:22 PM

[performanceautofiler]

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.18362
Queue	TigerWindows
Baseline	0ed582a2a93372bc9b14abdd440026f2bfaf8816
Compare	5f4ee519c7ce0bfe1e914ee7a617e17b5c509cf5
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Improvements in System.Linq.Tests.Perf_Enumerable

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
WhereSelect - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	468.98 ns	384.00 ns	0.82	0.36	False

Test Report

Repro

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

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

Payloads

Baseline
Compare

System.Linq.Tests.Perf_Enumerable.WhereSelect(input: IEnumerable)

ETL Files

Histogram

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 384.0004610588461 < 420.2014215891257.
IsChangePoint: Marked as a change because one of 8/16/2023 3:30:19 PM, 9/19/2023 8:08:41 AM, 10/10/2023 4:37:26 PM, 10/16/2023 8:09:45 PM falls between 10/8/2023 1:17:11 AM and 10/16/2023 8:09:45 PM.
IsImprovementStdDev: Marked as improvement because 6.301388043006101 (T) = (0 -388.4324537489787) / Math.Sqrt((803.6626425931141 / (299)) + (144.71456454589298 / (13))) is greater than 1.9676459287777595 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (13) - 2, .975) and 0.05687725491820812 = (411.8577945178197 - 388.4324537489787) / 411.8577945178197 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

JIT Disasms

Docs

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