[Perf] Linux/x64: 1 Regression on 5/14/2026 8:53:46 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [c1edd14cf729ba6fce205c5f4509caeaaae8fbb6](https://github.com/dotnet/runtime/commit/c1edd14cf729ba6fce205c5f4509caeaaae8fbb6)
Compare | [ea32e277e519d1e08f2498c142cb55f56d681114](https://github.com/dotnet/runtime/commit/ea32e277e519d1e08f2498c142cb55f56d681114)
Diff | [Diff](https://github.com/dotnet/runtime/compare/c1edd14cf729ba6fce205c5f4509caeaaae8fbb6...ea32e277e519d1e08f2498c142cb55f56d681114)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro

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

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

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

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

#### 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)