[Perf] Windows/x64: 1 Regression on 8/21/2026 7:05:07 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [76c60b960a2daa412c44a5061abf66f3286f6a92](https://github.com/dotnet/runtime/commit/76c60b960a2daa412c44a5061abf66f3286f6a92)
Compare | [58a829968e8d2624cbcb4e2ce7f1bb01cb9f652b](https://github.com/dotnet/runtime/commit/58a829968e8d2624cbcb4e2ce7f1bb01cb9f652b)
Diff | [Diff](https://github.com/dotnet/runtime/compare/76c60b960a2daa412c44a5061abf66f3286f6a92...58a829968e8d2624cbcb4e2ce7f1bb01cb9f652b)
Configs | CompilationMode:tiered, RunKind:micro

### Regressions in System.Reflection.Invoke

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

• [Field_Set_class - 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.Invoke*'
```

### System.Reflection.Invoke.Field_Set_class

#### 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 System.Reflection.Invoke benchmark in performance/src/benchmarks/micro/runtime/System.Reflection/Invoke.cs, lines 448-455, and reproduce it with the provided benchmarks_ci.py command. Compare the listed baseline and test commits, then use the profiling workflow to identify the regression; done means the benchmark no longer shows the reported slowdown.

Written by the indexing model from the issue text.