[Perf] Windows/x64: 1 Improvement on 8/26/2026 3:50:07 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [9f18a550aaa91ecd032ac024b67e03559df9e766](https://github.com/dotnet/runtime/commit/9f18a550aaa91ecd032ac024b67e03559df9e766)
Compare | [7c217acdb9e9fd656a8eba55eb99e52b00300fd3](https://github.com/dotnet/runtime/commit/7c217acdb9e9fd656a8eba55eb99e52b00300fd3)
Diff | [Diff](https://github.com/dotnet/runtime/compare/9f18a550aaa91ecd032ac024b67e03559df9e766...7c217acdb9e9fd656a8eba55eb99e52b00300fd3)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Collections.IterateForEach<Int32>

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

• [Stack - 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.Collections.IterateForEach*'
```

### System.Collections.IterateForEach<Int32>.Stack(Size: 512)

#### 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.Collections/Iterate/IterateForEach.cs#L172-L180 and run the provided benchmarks_ci.py command for System.Collections.IterateForEach. Review the linked test report, history graph, and baseline/compare commits to determine what produced the reported improvement. Done means the improvement is explained or an actionable runtime change is identified.

Written by the indexing model from the issue text.