[Perf] Linux/x64: 1 Improvement on 8/22/2026 2:29:58 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [129ada6e62fb997068c4151f69ecb3e39fb6f4be](https://github.com/dotnet/runtime/commit/129ada6e62fb997068c4151f69ecb3e39fb6f4be)
Compare | [75cffcef7186a6a0b738f15a98d0b28c6c8e6507](https://github.com/dotnet/runtime/commit/75cffcef7186a6a0b738f15a98d0b28c6c8e6507)
Diff | [Diff](https://github.com/dotnet/runtime/compare/129ada6e62fb997068c4151f69ecb3e39fb6f4be...75cffcef7186a6a0b738f15a98d0b28c6c8e6507)
Configs | CompilationMode:wasm, RunKind:micro

### Improvements in System.MathBenchmarks.Single

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

• [Atanh - 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.MathBenchmarks.Single*'
```

### System.MathBenchmarks.Single.Atanh

#### 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 at src/benchmarks/micro/runtime/Math/Functions/Single/Atanh.cs and run the provided benchmarks_ci.py command for System.MathBenchmarks.Single. Compare the linked baseline and test reports to understand the Atanh improvement; done means the performance change is explained and validated against the benchmark workflow.

Written by the indexing model from the issue text.