[Perf] Windows/arm64: 1 Regression on 8/29/2023 12:26:31 AM

[performanceautofiler[bot]]

Run Information

Name	Value
Architecture	arm64
OS	Windows 10.0.19041
Queue	SurfaceWindows
Baseline	f5881e59f1e625b2f27d1553dc572c5e9b66dbe4
Compare	cf3328cceecccf781afa3e1ba619cf42830ead60
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.AddGivenSize<Int32>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
[ConcurrentDictionary - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.19041/System.Collections.AddGivenSize(Int32).ConcurrentDictionary(Size%3a%20512).html>) 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	32.26 μs	35.26 μs	1.09	0.13	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.Collections.AddGivenSize<Int32>*'

### Payloads [Baseline]() [Compare]() ### System.Collections.AddGivenSize<Int32>.ConcurrentDictionary(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 35.25880016051365 > 33.64152922608763. IsChangePoint: Marked as a change because one of 7/17/2023 4:07:27 PM, 8/28/2023 2:57:38 PM, 9/5/2023 8:21:55 PM falls between 8/27/2023 2:42:29 PM and 9/5/2023 8:21:55 PM. IsRegressionStdDev: Marked as regression because -6.612522256743143 (T) = (0 -36418.250026617556) / Math.Sqrt((64106.02764183667 / (6)) + (4626720.879364459 / (11))) is less than -2.131449545559758 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (6) + (11) - 2, .025) and -0.13538785029061312 = (32075.603078979544 - 36418.250026617556) / 32075.603078979544 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](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md) [Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

[EgorBo]

Same as https://github.com/dotnet/perf-autofiling-issues/issues/21386