dotnet / dotnet/perf-autofiling-issues

[Perf] Linux/arm64: 1 Improvement on 5/21/2026 11:22:18 AM +00:00

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ampere arch-arm64 branch-refs/heads/main compilationmode-tiered kind-micro os-linux perf-improvement runkind-micro runtime-coreclr untriaged
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Description

### Run Information

Name | Value
-- | --
Architecture | arm64
OS | ubuntu 22.04
Queue | AmpereUbuntu
Baseline | [47f05197c408d9a6f48622031d899e08dbd02264](https://github.com/dotnet/runtime/commit/47f05197c408d9a6f48622031d899e08dbd02264)
Compare | [28b288c405e712eae529c1d147d2a34e4746b2ec](https://github.com/dotnet/runtime/commit/28b288c405e712eae529c1d147d2a34e4746b2ec)
Diff | [Diff](https://github.com/dotnet/runtime/compare/47f05197c408d9a6f48622031d899e08dbd02264...28b288c405e712eae529c1d147d2a34e4746b2ec)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Collections.TryGetValueTrue<BigStruct, BigStruct>

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

  • [Dictionary - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 341.32 μs | 283.63 μs | 0.83 | 0.43 | 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.TryGetValueTrue*'
```

### System.Collections.TryGetValueTrue<BigStruct, BigStruct>.Dictionary(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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