[Perf] Windows/x64: Regression in RCWLookup on 5/10/2025 5:16:10 PM +00:00

[performanceautofiler]

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22631
Queue	ViperWindows
Baseline	bd3ff5d26379616e9495ab75f5ee4a267e46e087
Compare	2c94e69db875a72511729de8855871a97d45050c
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in Interop.ComWrappersTests

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
ParallelRCWLookUp - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	261.83 ms	522.24 ms	1.99	0.46	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 'Interop.ComWrappersTests*'

Interop.ComWrappersTests.ParallelRCWLookUp

ETL Files

Histogram

JIT Disasms

Docs

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

[LoopedBard3]

This is likely due to NativePGO changes, so we should look again after the next dotnet-pgo update to see if we still see the regressions. The only commit in range is: #113907.

Related Regressions:

• [Perf] Windows/x64: 37 Regressions on 5/10/2025 5:16:10 PM +00:00 perf-autofiling-issues#55427
• [Perf] Linux/x64: 3 Regressions on 5/10/2025 5:16:10 PM +00:00 perf-autofiling-issues#55399
• [Perf] Linux/x64: 2 Regressions on 5/10/2025 5:16:10 PM +00:00 perf-autofiling-issues#55439
• [Perf] Linux/arm64: 1 Regression on 5/10/2025 5:16:10 PM +00:00 perf-autofiling-issues#55588
• [Perf] Windows/arm64: 2 Regressions on 5/10/2025 5:16:10 PM +00:00 perf-autofiling-issues#55574