[Perf] Linux/x64: 1 Improvement on 6/29/2026 4:19:01 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [ff08290b777d78822cc4505bf7308d33b9735705](https://github.com/dotnet/runtime/commit/ff08290b777d78822cc4505bf7308d33b9735705)
Compare | [b6f8d204bdbbf2c00f38aaf0f7f84abd9078341f](https://github.com/dotnet/runtime/commit/b6f8d204bdbbf2c00f38aaf0f7f84abd9078341f)
Diff | [Diff](https://github.com/dotnet/runtime/compare/ff08290b777d78822cc4505bf7308d33b9735705...b6f8d204bdbbf2c00f38aaf0f7f84abd9078341f)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in PerfLabTests.LowLevelPerf

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

• [InterfaceInterfaceMethodSwitchCallType - 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 'PerfLabTests.LowLevelPerf*'
```

### PerfLabTests.LowLevelPerf.InterfaceInterfaceMethodSwitchCallType

#### 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 dotnet/performance/src/benchmarks/micro/runtime/perflab/LowLevelPerf.cs lines 157-168 and run the provided benchmarks_ci.py command filtered to PerfLabTests.LowLevelPerf. Review the linked performance report for InterfaceInterfaceMethodSwitchCallType and compare the baseline and test results. The payload does not specify a requested code change or explicit completion criterion.

Written by the indexing model from the issue text.