[Perf] Windows/x86: 2 Improvements on 4/18/2026 6:06:24 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x86
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [8b4d9c22144fcbf00f3af4b0a013bd909dc30501](https://github.com/dotnet/runtime/commit/8b4d9c22144fcbf00f3af4b0a013bd909dc30501)
Compare | [6a9f0904557ecae82f46098437849ad857a4886d](https://github.com/dotnet/runtime/commit/6a9f0904557ecae82f46098437849ad857a4886d)
Diff | [Diff](https://github.com/dotnet/runtime/compare/8b4d9c22144fcbf00f3af4b0a013bd909dc30501...6a9f0904557ecae82f46098437849ad857a4886d)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Collections.CreateAddAndRemove<String>

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

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

| 4.52 μs | 3.60 μs | 0.80 | 0.38 | False | | |
|

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

| 3.41 μs | 3.14 μs | 0.92 | 0.51 | False | | |

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

### System.Collections.CreateAddAndRemove<String>.Queue(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.CreateAddAndRemove<String>.Stack(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)