[Perf] Linux/arm64: 2 Improvements on 7/2/2026 10:28:28 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | arm64
OS | ubuntu 22.04
Queue | AmpereUbuntu
Baseline | [2ca5bd514647fe0e961dd237dc9af0004479da6f](https://github.com/dotnet/runtime/commit/2ca5bd514647fe0e961dd237dc9af0004479da6f)
Compare | [6585d1cf126b41c0554dedaa0b6fce955cdb8825](https://github.com/dotnet/runtime/commit/6585d1cf126b41c0554dedaa0b6fce955cdb8825)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2ca5bd514647fe0e961dd237dc9af0004479da6f...6585d1cf126b41c0554dedaa0b6fce955cdb8825)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Linq.Tests.Perf_Enumerable

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

• [Max - Duration of single invocation]()
• 📝 - [Benchmark Source]()
• [ADX - Test Multi Config Graph]()

| 228.99 ns | 102.02 ns | 0.45 | 0.01 | False | | |
|

• [Min - Duration of single invocation]()
• 📝 - [Benchmark Source]()
• [ADX - Test Multi Config Graph]()

| 203.92 ns | 102.01 ns | 0.50 | 0.01 | False | | |

![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.Linq.Tests.Perf_Enumerable*'
```

### System.Linq.Tests.Perf_Enumerable.Max(input: IEnumerable)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Linq.Tests.Perf_Enumerable.Min(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.Enumerable.cs at the Max and Min benchmark entries linked in the report, then review the dotnet/runtime comparison and the profiling and benchmarking workflow documents. Run the provided benchmarks_ci.py command for Perf_Enumerable and inspect the linked performance report; the issue does not define a specific code change or success criterion beyond investigating the measured improvement.

Written by the indexing model from the issue text.