[Perf] Linux/arm64: 1 Regression on 6/5/2026 10:45:00 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | arm64
OS | azurelinux 3.0
Queue | CobaltAzureLinux
Baseline | [ecaa1c589257cd25a5034dffba8e2a8fea10470a](https://github.com/dotnet/runtime/commit/ecaa1c589257cd25a5034dffba8e2a8fea10470a)
Compare | [35096b59fc4666bb6c26aacc4bbaadd34d03b7e1](https://github.com/dotnet/runtime/commit/35096b59fc4666bb6c26aacc4bbaadd34d03b7e1)
Diff | [Diff](https://github.com/dotnet/runtime/compare/ecaa1c589257cd25a5034dffba8e2a8fea10470a...35096b59fc4666bb6c26aacc4bbaadd34d03b7e1)
Configs | CompilationMode:tiered, R2RType:r2r_interpreter, RunKind:micro

### Regressions in System.Buffers.Binary.Tests.BinaryReadAndWriteTests

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

• [ReadStructFieldByFieldLE - 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.Binary.Tests.BinaryReadAndWriteTests*'
```

### System.Buffers.Binary.Tests.BinaryReadAndWriteTests.ReadStructFieldByFieldLE

#### 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)