[Perf] Linux/arm64: 3 Regressions on 6/17/2025 11:13:35 PM +00:00

[performanceautofiler]

Run Information

Name	Value
Architecture	arm64
OS	ubuntu 22.04
Queue	AmpereUbuntu
Baseline	39a31f082e77fb8893016c30c0858f0e5f8c89ea
Compare	f1a4b89e9c6f3ee9dcaaca0f73dff20488fbfef9
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.Tests.Perf_BitArray

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
BitArrayNot - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.45 ns	3.32 ns	2.29	0.73	False
BitArrayCopyToByteArray - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	7.41 ns	8.65 ns	1.17	0.50	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.Tests.Perf_BitArray*'

System.Collections.Tests.Perf_BitArray.BitArrayNot(Size: 4)

ETL Files

Histogram

JIT Disasms

System.Collections.Tests.Perf_BitArray.BitArrayCopyToByteArray(Size: 4)

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	39a31f082e77fb8893016c30c0858f0e5f8c89ea
Compare	f1a4b89e9c6f3ee9dcaaca0f73dff20488fbfef9
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.Tests.Perf_PriorityQueue<Int32, Int32>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
HeapSort - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	113.30 ns	123.72 ns	1.09	0.01	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.Tests.Perf_PriorityQueue<Int32, Int32>*'

System.Collections.Tests.Perf_PriorityQueue<Int32, Int32>.HeapSort(Size: 10)

ETL Files

Histogram

JIT Disasms

Docs

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

[AndyAyersMS]

Likely #116637

[AndyAyersMS]

@amanasifkhalid FYI

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