[Perf] Linux/x64: 1 Improvement on 6/20/2026 10:42:33 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [8a395fa3d63a95b22b1e60dfeb3263668ef9b086](https://github.com/dotnet/runtime/commit/8a395fa3d63a95b22b1e60dfeb3263668ef9b086)
Compare | [b4ca93f1d026919b29a1000cf520db442cabf61b](https://github.com/dotnet/runtime/commit/b4ca93f1d026919b29a1000cf520db442cabf61b)
Diff | [Diff](https://github.com/dotnet/runtime/compare/8a395fa3d63a95b22b1e60dfeb3263668ef9b086...b4ca93f1d026919b29a1000cf520db442cabf61b)
Configs | CompilationMode:wasm, RunKind:micro

### Improvements in System.Numerics.Tests.Perf_Quaternion

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

• [DivideBenchmark - 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_Quaternion*'
```

### System.Numerics.Tests.Perf_Quaternion.DivideBenchmark

#### 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)

Start with the benchmark source at src/benchmarks/micro/libraries/System.Numerics.Vectors/Perf_Quaternion.cs lines 69-71 and review the linked performance report for DivideBenchmark. Run the provided benchmarks_ci.py command with the System.Numerics.Tests.Perf_Quaternion filter and compare the reported results; done requires identifying and validating a concrete cause or improvement.

Written by the indexing model from the issue text.