[Perf] Linux/x64: 1 Regression on 3/20/2026 12:00:50 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [7c0f7cf2f76ef4bc2dc8113818b8a408a1dcdf55](https://github.com/dotnet/runtime/commit/7c0f7cf2f76ef4bc2dc8113818b8a408a1dcdf55)
Compare | [6a815e85a7ed3fadeb42adbc805da3f2dacc1fe5](https://github.com/dotnet/runtime/commit/6a815e85a7ed3fadeb42adbc805da3f2dacc1fe5)
Diff | [Diff](https://github.com/dotnet/runtime/compare/7c0f7cf2f76ef4bc2dc8113818b8a408a1dcdf55...6a815e85a7ed3fadeb42adbc805da3f2dacc1fe5)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro

### Regressions in System.Numerics.Tests.Perf_Matrix4x4

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|

• [SubtractBenchmark - Duration of single invocation]()
• 📝 - [Benchmark Source]()
• [ADX - Test Multi Config Graph]()

![graph]()
[Test Report]()

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Numerics.Tests.Perf_Matrix4x4*'
```

### System.Numerics.Tests.Perf_Matrix4x4.SubtractBenchmark

#### 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)