[Perf] Linux/x64: 1 Improvement on 6/10/2026 1:14:05 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [24547a76ba95bee359f4c0b58dd98976973aa797](https://github.com/dotnet/runtime/commit/24547a76ba95bee359f4c0b58dd98976973aa797)
Compare | [4b5614930561c7d0ae7b36b44ff0826fda04c49d](https://github.com/dotnet/runtime/commit/4b5614930561c7d0ae7b36b44ff0826fda04c49d)
Diff | [Diff](https://github.com/dotnet/runtime/compare/24547a76ba95bee359f4c0b58dd98976973aa797...4b5614930561c7d0ae7b36b44ff0826fda04c49d)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Tests.Perf_Environment

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

• [GetEnvironmentVariable - 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.Tests.Perf_Environment*'
```

### System.Tests.Perf_Environment.GetEnvironmentVariable

#### 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)