[Perf] Windows/x86: 1 Improvement on 8/24/2026 3:40:41 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x86
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [d5d5cbcba8af2882afdda08e5b667206c7dbf09a](https://github.com/dotnet/runtime/commit/d5d5cbcba8af2882afdda08e5b667206c7dbf09a)
Compare | [6d57017f1cbf04efa931389d38ca4755e4da8add](https://github.com/dotnet/runtime/commit/6d57017f1cbf04efa931389d38ca4755e4da8add)
Diff | [Diff](https://github.com/dotnet/runtime/compare/d5d5cbcba8af2882afdda08e5b667206c7dbf09a...6d57017f1cbf04efa931389d38ca4755e4da8add)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Memory.Span<Char>

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

• [SequenceCompareTo - 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.Memory.Span*'
```

### System.Memory.Span<Char>.SequenceCompareTo(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 in performance/src/benchmarks/micro/libraries/System.Memory/Span.cs at lines 65-66, then run the documented benchmarks_ci.py command for System.Memory.Span.SequenceCompareTo. Compare the listed baseline and test results on Windows/x86; the work is complete when the reported improvement is understood and validated against the benchmark.

Written by the indexing model from the issue text.