[Perf] Linux/x64: 1 Improvement on 6/18/2026 9:53:01 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [a17debec450d73f9d84e68ca44f63b217f5db49f](https://github.com/dotnet/runtime/commit/a17debec450d73f9d84e68ca44f63b217f5db49f)
Compare | [482f9baca29117c07eb4f9ab5404990746986ce0](https://github.com/dotnet/runtime/commit/482f9baca29117c07eb4f9ab5404990746986ce0)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a17debec450d73f9d84e68ca44f63b217f5db49f...482f9baca29117c07eb4f9ab5404990746986ce0)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro

### Improvements in System.Runtime.Intrinsics.Tests.Perf_Vector128

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

• [ConvertUIntToFloatBenchmark - 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.Runtime.Intrinsics.Tests.Perf_Vector128*'
```

### System.Runtime.Intrinsics.Tests.Perf_Vector128.ConvertUIntToFloatBenchmark

#### 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 src/benchmarks/micro/libraries/System.Runtime.Intrinsics/Perf_Vector128.cs, especially ConvertUIntToFloatBenchmark, and reproduce it with scripts/benchmarks_ci.py using the filter in the issue. Compare the reported baseline and test results under Ubuntu 22.04 AOT WebAssembly, then consult the profiling and benchmarking workflow documents. Done means establishing whether the measured improvement needs follow-up and documenting the evidence.

Written by the indexing model from the issue text.