[Perf] Linux/arm64: 3 Regressions on 3/24/2025 9:53:02 PM +00:00

[performanceautofiler]

Run Information

Name	Value
Architecture	arm64
OS	ubuntu 22.04
Queue	AmpereUbuntu
Baseline	5bce78d958f271c0f5555665adaab076599ab9a7
Compare	fa4c14e0d82447c25aa0fa4d9735c905e30836ac
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.Perf_Frozen<ReferenceType>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
TryGetValue_True - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	62.68 ns	76.76 ns	1.22	0.10	False
ToFrozenSet - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	5.89 μs	6.98 μs	1.18	0.00	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.Perf_Frozen<ReferenceType>*'

System.Collections.Perf_Frozen<ReferenceType>.TryGetValue_True(Count: 4)

ETL Files

Histogram

JIT Disasms

System.Collections.Perf_Frozen<ReferenceType>.ToFrozenSet(Count: 64)

ETL Files

Histogram

JIT Disasms

Docs

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

---

Run Information

Name	Value
Architecture	arm64
OS	ubuntu 22.04
Queue	AmpereUbuntu
Baseline	5bce78d958f271c0f5555665adaab076599ab9a7
Compare	fa4c14e0d82447c25aa0fa4d9735c905e30836ac
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.IterateForEach<Int32>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
ConcurrentBag - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.82 μs	1.97 μs	1.09	0.00	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.IterateForEach<Int32>*'

System.Collections.IterateForEach<Int32>.ConcurrentBag(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

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

[LoopedBard3]

Commit range: 6b176b2...659321f, most cause likely is #107499. The concurrent bag regression seems to be the most real regression, the frozen set ones seem to likely be noise.

[dotnet-policy-service]

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[JulieLeeMSFT]

@EgorBo, PTAL.