[Perf] Linux/arm64: 1 Improvement on 6/12/2026 1:25:17 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | arm64
OS | azurelinux 3.0
Queue | CobaltAzureLinux
Baseline | [2f3821520acb47a26220fe08ee13cb89b3a38572](https://github.com/dotnet/runtime/commit/2f3821520acb47a26220fe08ee13cb89b3a38572)
Compare | [f8676279408d3721fe4b02afc035a8851d303e57](https://github.com/dotnet/runtime/commit/f8676279408d3721fe4b02afc035a8851d303e57)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2f3821520acb47a26220fe08ee13cb89b3a38572...f8676279408d3721fe4b02afc035a8851d303e57)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Linq.Tests.Perf_ImmutableArrayExtensions

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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Linq.Tests.Perf_ImmutableArrayExtensions*'
```

### System.Linq.Tests.Perf_ImmutableArrayExtensions.SequenceEqual(input: IEnumerable)

#### 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 src/benchmarks/micro/libraries/System.Linq/Perf.ImmutableArrayExtensions.cs and run the provided benchmarks_ci.py command filtered to System.Linq.Tests.Perf_ImmutableArrayExtensions. Review the linked performance report and baseline/compare data for SequenceEqual(input: IEnumerable). The issue does not state a code change or acceptance criterion, so completion would require establishing whether this automated improvement needs follow-up.

Written by the indexing model from the issue text.