[Perf] Linux/x64: 1 Regression on 7/29/2026 2:44:38 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [69d18c7af02f97ed5588f06adb0f63491c1b2be1](https://github.com/dotnet/runtime/commit/69d18c7af02f97ed5588f06adb0f63491c1b2be1)
Compare | [0a25043f48f83ecfa896966929f25f792463344b](https://github.com/dotnet/runtime/commit/0a25043f48f83ecfa896966929f25f792463344b)
Diff | [Diff](https://github.com/dotnet/runtime/compare/69d18c7af02f97ed5588f06adb0f63491c1b2be1...0a25043f48f83ecfa896966929f25f792463344b)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro

### Regressions 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 and the linked test report, then reproduce it with the provided benchmarks_ci.py command. Compare the listed baseline and test commits and use the profiling and benchmarking workflow docs; done requires identifying and addressing the reported performance regression.

Written by the indexing model from the issue text.