[Perf] Linux/x64: 1 Improvement on 8/14/2026 10:22:33 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [d00a0a24912957046ed2443adc0af7bbfb4c43bc](https://github.com/dotnet/runtime/commit/d00a0a24912957046ed2443adc0af7bbfb4c43bc)
Compare | [420dfbb4f584c1b0ddebec9615d1a673437050f6](https://github.com/dotnet/runtime/commit/420dfbb4f584c1b0ddebec9615d1a673437050f6)
Diff | [Diff](https://github.com/dotnet/runtime/compare/d00a0a24912957046ed2443adc0af7bbfb4c43bc...420dfbb4f584c1b0ddebec9615d1a673437050f6)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro

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

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

• [Stack - 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.Collections.CreateAddAndRemove*'
```

### System.Collections.CreateAddAndRemove<Int32>.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)

Start with the benchmark source at src/benchmarks/micro/libraries/System.Collections/CreateAddAndRemove.cs#L131-L144 and read the benchmarking workflow linked in the issue. Run the provided benchmarks_ci.py command, then compare the reported baseline and test results. Done means the performance change has an identified cause and a verified outcome, though this report does not define a specific fix.

Written by the indexing model from the issue text.