[Perf] Windows/arm64: 1 Regression on 4/25/2025 10:02:46 PM +00:00

[performanceautofiler]

Run Information

Name	Value
Architecture	arm64
OS	Windows 10.0.22621
Queue	SurfaceWindows
Baseline	bec2519e10dc996adc2dcfcc65a53637421ebcfd
Compare	1a7343c82afe5d8f527d51b7946900640b7d6b03
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.TryAddDefaultSize<Int32>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Dictionary - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	15.97 μs	17.98 μs	1.13	0.06	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.TryAddDefaultSize<Int32>*'

Details

System.Collections.TryAddDefaultSize<Int32>.Dictionary(Count: 512)

ETL Files

Histogram

JIT Disasms

Docs

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

[AndyAyersMS]

Possibly dotnet/runtime#114974

[AndyAyersMS]

ADX shows this has already recovered, so just a spike.