[Perf] Linux/x64: 1 Improvement on 6/1/2026 8:05:47 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [f2d5042ceaea5642bac6bde8a1a5765afcbf2ef4](https://github.com/dotnet/runtime/commit/f2d5042ceaea5642bac6bde8a1a5765afcbf2ef4)
Compare | [480e3c83373f82f57c35a44d6c4215e7900e6abd](https://github.com/dotnet/runtime/commit/480e3c83373f82f57c35a44d6c4215e7900e6abd)
Diff | [Diff](https://github.com/dotnet/runtime/compare/f2d5042ceaea5642bac6bde8a1a5765afcbf2ef4...480e3c83373f82f57c35a44d6c4215e7900e6abd)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro

### Improvements in System.IO.Tests.Perf_FileStream

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

• [Read_NoBuffering - 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.IO.Tests.Perf_FileStream*'
```

### System.IO.Tests.Perf_FileStream.Read_NoBuffering(fileSize: 104857600, userBufferSize: 16384, options: Asynchronous)

#### 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)