[Perf] Windows/x64: 2 Regressions on 6/17/2025 12:35:31 AM +00:00

[performanceautofiler]

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22631
Queue	ViperWindows
Baseline	22ccb0563cbb79e950b8d8e2d8bed306b125e7d8
Compare	d1770cc10d5f74642ee108ff5be83a6ecc30792a
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.CtorFromCollection<String>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
ConcurrentDictionary - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	24.29 μs	27.50 μs	1.13	0.04	False
ConcurrentQueue - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	3.52 μs	3.76 μs	1.07	0.02	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.CtorFromCollection<String>*'

System.Collections.CtorFromCollection<String>.ConcurrentDictionary(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Collections.CtorFromCollection<String>.ConcurrentQueue(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

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

[DrewScoggins]

#116453 seems related.

Regressions:

• [Perf] Linux/x64: 3 Regressions on 6/17/2025 12:35:31 AM +00:00 perf-autofiling-issues#58131
• [Perf] Windows/arm64: 3 Regressions on 6/18/2025 9:48:45 AM +00:00 perf-autofiling-issues#58732
• [Perf] Windows/arm64: 2 Regressions on 6/17/2025 11:00:39 AM +00:00 perf-autofiling-issues#58731

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