[Perf] Linux/arm64: SciMark2.kernel Regression on 10/15/2024 8:19:02 AM

[performanceautofiler[bot]]

Run Information

Name	Value
Architecture	arm64
OS	ubuntu 22.04
Queue	AmpereUbuntu
Baseline	4e2fe8d886e2ca8df51643b7aa69e7ee33cf2296
Compare	69dc5ec395749dc17434140881eb1414fc989c28
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in SciMark2.kernel

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
[benchmarkLU - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 22.04/SciMark2.kernel.benchmarkLU.html>) 📝 - Benchmark Source ADX - Test Multi Config Graph	663.96 ms	717.40 ms	1.08	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 'SciMark2.kernel*'

### SciMark2.kernel.benchmarkLU #### ETL Files #### Histogram #### JIT Disasms ### Docs [Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md) [Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

[LoopedBard3]

Likely caused by https://github.com/dotnet/runtime/pull/108771. @AndyAyersMS

Compare range: https://github.com/dotnet/runtime/compare/0212c3d85023305facc19e9835518c5b717ce29c...8ef27e2a692bc311a64c078ad428e97eeb32d751

[AndyAyersMS]

Going to wait for x64 results (we previewed and they looked like a mixed bag).

May want to up the limit, but before I do that I'll dig in and see what lead to the regression.