[Perf] Linux/arm64: 1 Regression on 6/24/2025 4:27:48 PM +00:00

[performanceautofiler]

Run Information

Name	Value
Architecture	arm64
OS	ubuntu 22.04
Queue	AmpereUbuntu
Baseline	5b8b862ebc8148df05236814268002f9324ed062
Compare	53924485e03b81f0ae87651e19b89d2a71c136fe
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Numerics.Tensors.Tests.Perf_BinaryIntegerTensorPrimitives<Int32>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
TrailingZeroCount - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	888.54 ns	966.72 ns	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.Numerics.Tensors.Tests.Perf_BinaryIntegerTensorPrimitives<Int32>*'

System.Numerics.Tensors.Tests.Perf_BinaryIntegerTensorPrimitives<Int32>.TrailingZeroCount(BufferLength: 3079)

ETL Files

Histogram

JIT Disasms

Docs

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

[LoopedBard3]

Due to #116892 from range: 9bf9358...aa70ad6. FYI @tannergooding.

We are seeing this across most of the machine types (based on the ADX graphs), will have more issues on Tuesday to connect to this.