[Perf] Linux/arm64: 1 Improvement on 8/2/2026 10:03:26 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | arm64
OS | ubuntu 22.04
Queue | AmpereUbuntu
Baseline | [75c1187a6c4669f5b35f2e900a659b4a55f352c6](https://github.com/dotnet/runtime/commit/75c1187a6c4669f5b35f2e900a659b4a55f352c6)
Compare | [1110e1e923579c970199ab8a5a3482d48987d925](https://github.com/dotnet/runtime/commit/1110e1e923579c970199ab8a5a3482d48987d925)
Diff | [Diff](https://github.com/dotnet/runtime/compare/75c1187a6c4669f5b35f2e900a659b4a55f352c6...1110e1e923579c970199ab8a5a3482d48987d925)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Tests.Perf_Random

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

• [NextSingle - Duration of single invocation]()
• [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.Tests.Perf_Random*'
```

### System.Tests.Perf_Random.NextSingle

#### 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 the System.Tests.Perf_Random.NextSingle benchmark and compare the linked baseline, test, and Test Report results. Read the profiling and benchmarking workflow documentation, then investigate the reported arm64 Ubuntu improvement; done means the change is understood and any follow-up is supported by benchmark evidence.

Written by the indexing model from the issue text.