[Perf] Windows/x86: 1 Improvement on 7/7/2026 12:03:55 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x86
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [4245753ead3ca70a287ac1234cd91ce1b782d5a8](https://github.com/dotnet/runtime/commit/4245753ead3ca70a287ac1234cd91ce1b782d5a8)
Compare | [f00ccfddcd92f805d2d721ccaabfad6a9089e845](https://github.com/dotnet/runtime/commit/f00ccfddcd92f805d2d721ccaabfad6a9089e845)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4245753ead3ca70a287ac1234cd91ce1b782d5a8...f00ccfddcd92f805d2d721ccaabfad6a9089e845)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Reflection.Attributes

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

• [GetCustomAttributesClassHit - 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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Reflection.Attributes*'
```

### System.Reflection.Attributes.GetCustomAttributesClassHit

#### 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/runtime/System.Reflection/Attributes.cs around lines 53-54 and run the provided benchmarks_ci.py command for System.Reflection.Attributes*. Compare the listed baseline and test commits and review the linked test report and profiling workflow; done means the observed Windows x86 improvement is explained and any required follow-up is documented.

Written by the indexing model from the issue text.