[Perf] Linux/x64: 1 Improvement on 6/25/2026 8:43:50 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [cd27dcec16016aa54be6a09962d1b509150cf99b](https://github.com/dotnet/runtime/commit/cd27dcec16016aa54be6a09962d1b509150cf99b)
Compare | [d6c7fb69f882c3ffd49de58dd009330e2a915402](https://github.com/dotnet/runtime/commit/d6c7fb69f882c3ffd49de58dd009330e2a915402)
Diff | [Diff](https://github.com/dotnet/runtime/compare/cd27dcec16016aa54be6a09962d1b509150cf99b...d6c7fb69f882c3ffd49de58dd009330e2a915402)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro

### Improvements in System.Runtime.Intrinsics.Tests.Perf_Vector128Of<Int64>

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

• [SquareRootBenchmark - 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.Runtime.Intrinsics.Tests.Perf_Vector128Of*'
```

### System.Runtime.Intrinsics.Tests.Perf_Vector128Of<Int64>.SquareRootBenchmark

#### 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 linked benchmark source, Perf_Vector128OfT.cs lines 160-161, and reproduce the System.Runtime.Intrinsics.Tests.Perf_Vector128Of benchmark using the documented benchmarks_ci.py command. Compare the baseline and test reports to determine whether the SquareRootBenchmark improvement is expected; done requires a confirmed explanation or a clearly identified runtime issue.

Written by the indexing model from the issue text.