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[Perf] Linux/arm64: 1 Regression on 9/8/2025 7:59:39 AM +00:00 #119588
Description
Run Information
| Name | Value |
|---|---|
| Architecture | arm64 |
| OS | ubuntu 22.04 |
| Queue | AmpereUbuntu |
| Baseline | ffafc0de94dc9263d7030b749b0b0fc6ae2c98e3 |
| Compare | 45f7e7b0b729c956559047b0ea802262b0d03713 |
| Diff | Diff |
| Configs | CompilationMode:tiered, RunKind:micro |
Regressions in System.Numerics.Tests.Perf_Matrix4x4
| Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio |
|---|---|---|---|---|---|---|---|---|
| 21.84 ns | 24.58 ns | 1.13 | 0.03 | False |
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.Tests.Perf_Matrix4x4*'Details
System.Numerics.Tests.Perf_Matrix4x4.CreateLookAtBenchmark
ETL Files
Histogram
JIT Disasms
Docs
Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository
Activity
dotnet-policy-service commentedon Sep 11, 2025
Tagging subscribers to this area: @dotnet/area-system-numerics
See info in area-owners.md if you want to be subscribed.
DrewScoggins commentedon Sep 11, 2025
Seems like it could be related to #119438
tannergooding commentedon Sep 11, 2025
Yes, but this is "by design" to fix an edge case where the result was unexpected, so closing as by design.