[Perf] Linux/arm64: 1 Improvement on 5/21/2026 1:28:50 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | arm64
OS | ubuntu 22.04
Queue | AmpereUbuntu
Baseline | [b129b7c103a567531537d2256e58aaa1dc76dbdf](https://github.com/dotnet/runtime/commit/b129b7c103a567531537d2256e58aaa1dc76dbdf)
Compare | [ab6aa47b475070e581e0caf59b779d174b94cc89](https://github.com/dotnet/runtime/commit/ab6aa47b475070e581e0caf59b779d174b94cc89)
Diff | [Diff](https://github.com/dotnet/runtime/compare/b129b7c103a567531537d2256e58aaa1dc76dbdf...ab6aa47b475070e581e0caf59b779d174b94cc89)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.IO.Tests.StringReaderReadToEndTests

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

• [ReadToEnd - 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.IO.Tests.StringReaderReadToEndTests*'
```

### System.IO.Tests.StringReaderReadToEndTests.ReadToEnd(LineLengthRange: [ 1, 1])

#### 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)