dotnet / dotnet/runtime

[Perf] Linux/arm64: 1 Regression on 6/16/2026 12:54:32 AM +00:00

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#129,585 4 comments 0 reactions 1 assignee Claimed by @EgorBo View on GitHub
arch-arm64 area-CodeGen-coreclr os-linux runtime-coreclr tenet-performance tenet-performance-benchmarks
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Description

### Run Information

Name | Value
-- | --
Architecture | arm64
OS | ubuntu 22.04
Queue | AmpereUbuntu
Baseline | [98bfa17c9f3910eec30099b7ac140d8a09df6227](https://github.com/dotnet/runtime/commit/98bfa17c9f3910eec30099b7ac140d8a09df6227)
Compare | [98d5787a726f050c592e7c126c6ab62b1954288c](https://github.com/dotnet/runtime/commit/98d5787a726f050c592e7c126c6ab62b1954288c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/98bfa17c9f3910eec30099b7ac140d8a09df6227...98d5787a726f050c592e7c126c6ab62b1954288c)
Configs | CompilationMode:tiered, RunKind:micro

### Regressions in PerfLabTests.LowLevelPerf

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

  • [TypeReflectionObjectGetType - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 33.45 μs | 44.60 μs | 1.33 | 0.00 | 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 'PerfLabTests.LowLevelPerf*'
```

### PerfLabTests.LowLevelPerf.TypeReflectionObjectGetType

#### 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)

Contributor guide

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Assessment

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