[Perf] Windows/x64: 1 Regressions in System.Collections.Sort<IntStruct> #89106
Description
Run Information
| Name | Value |
|---|---|
| Architecture | x64 |
| OS | Windows 10.0.19042 |
| Queue | OwlWindows |
| Baseline | d59af2cf097acb100ad6a9cba652be34be6f4a2e |
| Compare | d9f6b98de38081b71fa9b5a463f302288546435d |
| Diff | Diff |
| Configs | CompilationMode:tiered, RunKind:micro |
Regressions in System.Collections.Sort<IntStruct>
| Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio |
|---|---|---|---|---|---|---|---|---|
| Array - Duration of single invocation 📝 - Benchmark Source |
5.03 μs | 6.10 μs | 1.21 | 0.39 | False |
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.Collections.Sort<IntStruct>*'Payloads
System.Collections.Sort<IntStruct>.Array(Size: 512)
ETL Files
Histogram
Description of detection logic
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 6.098761428571428 > 5.2929065.
IsChangePoint: Marked as a change because one of 5/19/2023 4:22:12 AM, 7/12/2023 4:12:15 PM, 7/17/2023 10:23:26 PM falls between 7/8/2023 10:33:35 PM and 7/17/2023 10:23:26 PM.
IsRegressionStdDev: Marked as regression because -4.540498423685632 (T) = (0 -5812.810964285714) / Math.Sqrt((22347.782534576407 / (21)) + (172378.95924323285 / (8))) is less than -2.051830516474954 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (21) + (8) - 2, .025) and -0.1330905133483964 = (5130.049979068551 - 5812.810964285714) / 5130.049979068551 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.
JIT Disasms
Docs
Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository