dotnet / dotnet/perf-autofiling-issues

[Perf] Linux/x64: 1 Regression on 3/19/2026 3:35:34 PM +00:00

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Description

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [12cdada8d6a5d342c3d0647b3c2f5b1d36c08821](https://github.com/dotnet/runtime/commit/12cdada8d6a5d342c3d0647b3c2f5b1d36c08821)
Compare | [37c96934b3fdeeceae7bfd730c736c5667e32c7c](https://github.com/dotnet/runtime/commit/37c96934b3fdeeceae7bfd730c736c5667e32c7c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/12cdada8d6a5d342c3d0647b3c2f5b1d36c08821...37c96934b3fdeeceae7bfd730c736c5667e32c7c)
Configs | CompilationMode:wasm, RunKind:micro, RuntimeType:coreclr

### Regressions in System.Collections.AddGivenSize<String>

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

  • [ICollection - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 661.09 μs | 882.91 μs | 1.34 | 0.22 | 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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.AddGivenSize*'
```

### System.Collections.AddGivenSize<String>.ICollection(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)

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