[Perf] Linux/x64: 1 Improvement on 8/29/2026 10:20:31 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [398b6c5d572103decd5cfec64121384bcffc01bc](https://github.com/dotnet/runtime/commit/398b6c5d572103decd5cfec64121384bcffc01bc)
Compare | [5b11923ecac20a8367b4ca60a9b9739479319e9a](https://github.com/dotnet/runtime/commit/5b11923ecac20a8367b4ca60a9b9739479319e9a)
Diff | [Diff](https://github.com/dotnet/runtime/compare/398b6c5d572103decd5cfec64121384bcffc01bc...5b11923ecac20a8367b4ca60a9b9739479319e9a)
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
-- | -- | -- | -- | -- | -- | -- | -- | --
|

• [SequenceEqual - 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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Memory.Span*'
```

### System.Memory.Span<Char>.SequenceEqual(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 System.Memory.Span.SequenceEqual benchmark in src/benchmarks/micro/libraries/System.Memory/Span.cs at lines 62-63, then run the provided benchmarks_ci.py command and inspect the linked test report. The issue records an automated improvement, so a maintainer-defined follow-up is needed before completion can be judged.

Written by the indexing model from the issue text.