[Perf] Linux/arm64: 2 Improvements on 8/8/2023 7:20:25 PM

[performanceautofiler]

Run Information

Name	Value
Architecture	arm64
OS	ubuntu 20.04
Queue	AmpereUbuntu
Baseline	e857642fd03f8a6acdf42af7d9a814e320ec8432
Compare	88633ae045e7741fffa17710dc48e9032e519258
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Improvements in System.Collections.CtorDefaultSizeNonGeneric

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
SortedList - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	38.79 ns	26.51 ns	0.68	0.68	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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.CtorDefaultSizeNonGeneric*'

Payloads

Baseline
Compare

System.Collections.CtorDefaultSizeNonGeneric.SortedList

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 26.50858050060034 < 36.66841414439911.
IsChangePoint: Marked as a change because one of 8/8/2023 8:10:39 AM, 8/16/2023 6:53:02 PM falls between 8/7/2023 10:39:59 PM and 8/16/2023 6:53:02 PM.
IsImprovementStdDev: Marked as improvement because 8.03903091375951 (T) = (0 -28.339408743716824) / Math.Sqrt((28.497315258305207 / (299)) + (13.71868825747125 / (13))) is greater than 1.9676459287777595 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (13) - 2, .975) and 0.23329357481498342 = (36.96252934997661 - 28.339408743716824) / 36.96252934997661 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

---

Run Information

Name	Value
Architecture	arm64
OS	ubuntu 20.04
Queue	AmpereUbuntu
Baseline	e857642fd03f8a6acdf42af7d9a814e320ec8432
Compare	88633ae045e7741fffa17710dc48e9032e519258
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Improvements in System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Count - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	12.37 ms	11.12 ms	0.90	0.12	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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock*'

Payloads

Baseline
Compare

System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock.Count(Pattern: "\w+", Options: None)

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 11.120322523076922 < 11.717149987083332.
IsChangePoint: Marked as a change because one of 5/18/2023 11:09:10 AM, 8/8/2023 8:10:39 AM, 8/16/2023 6:53:02 PM falls between 8/7/2023 10:39:59 PM and 8/16/2023 6:53:02 PM.
IsImprovementStdDev: Marked as improvement because 41.01793762828814 (T) = (0 -11182856.865046933) / Math.Sqrt((301591656336.405 / (299)) + (6258557401.4930725 / (14))) is greater than 1.9676211333067681 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (14) - 2, .975) and 0.12276487745513054 = (12747844.423517076 - 11182856.865046933) / 12747844.423517076 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

[AndyAyersMS]

Possibly dotnet/runtime#87438 dragging in more static PGO data?