[Perf] Windows/x86: 1 Regression on 9/4/2026 2:43:47 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x86
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [25f20c2fd360fc0d7c126e50f7c784f8338d6faf](https://github.com/dotnet/runtime/commit/25f20c2fd360fc0d7c126e50f7c784f8338d6faf)
Compare | [7e807becb8c6b1917dac0565c674ade7947a8bec](https://github.com/dotnet/runtime/commit/7e807becb8c6b1917dac0565c674ade7947a8bec)
Diff | [Diff](https://github.com/dotnet/runtime/compare/25f20c2fd360fc0d7c126e50f7c784f8338d6faf...7e807becb8c6b1917dac0565c674ade7947a8bec)
Configs | CompilationMode:tiered, RunKind:micro

### Regressions in System.Buffers.Tests.ReadOnlySequenceTests<Byte>

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

• [IterateTryGetTenSegments - 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.Buffers.Tests.ReadOnlySequenceTests*'
```

### System.Buffers.Tests.ReadOnlySequenceTests<Byte>.IterateTryGetTenSegments

#### 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.Buffers/ReadOnlySequenceTests.cs, especially IterateTryGetTenSegments, and review the baseline-to-compare commit diff. Run the provided benchmarks_ci.py command and inspect the linked test report; done means the x86 Windows regression is explained and a verified correction or disposition is recorded.

Written by the indexing model from the issue text.