[Perf] Windows/x64: 1 Improvement on 1/14/2026 7:47:23 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [3211693c5d1875116571962d5d0e3cf401148660](https://github.com/dotnet/runtime/commit/3211693c5d1875116571962d5d0e3cf401148660)
Compare | [304643c5bba385b59f277c33f8e8d5492107f25b](https://github.com/dotnet/runtime/commit/304643c5bba385b59f277c33f8e8d5492107f25b)
Diff | [Diff](https://github.com/dotnet/runtime/compare/3211693c5d1875116571962d5d0e3cf401148660...304643c5bba385b59f277c33f8e8d5492107f25b)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Collections.ContainsFalse<Int32>

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

• [ImmutableArray - Duration of single invocation]()
• 📝 - [Benchmark Source]()
• [ADX - Test Multi Config Graph]()

| 13.04 μs | 9.29 μs | 0.71 | 0.08 | False | | |

![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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.ContainsFalse*'
```

### System.Collections.ContainsFalse<Int32>.ImmutableArray(Size: 512)

#### 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)