dotnet / dotnet/perf-autofiling-issues

[Perf] Linux/arm64: 1 Regression on 5/20/2026 4:57:18 PM +00:00

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

### Run Information

Name | Value
-- | --
Architecture | arm64
OS | azurelinux 3.0
Queue | CobaltAzureLinux
Baseline | [b129b7c103a567531537d2256e58aaa1dc76dbdf](https://github.com/dotnet/runtime/commit/b129b7c103a567531537d2256e58aaa1dc76dbdf)
Compare | [2a65f102aaad2e0b97bf4554dd510ae57801ae5e](https://github.com/dotnet/runtime/commit/2a65f102aaad2e0b97bf4554dd510ae57801ae5e)
Diff | [Diff](https://github.com/dotnet/runtime/compare/b129b7c103a567531537d2256e58aaa1dc76dbdf...2a65f102aaad2e0b97bf4554dd510ae57801ae5e)
Configs | CompilationMode:tiered, RunKind:micro

### Regressions in System.Tests.Perf_Double

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

  • [Parse - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 121.44 ns | 129.49 ns | 1.07 | 0.19 | 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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Double*'
```

### System.Tests.Perf_Double.Parse(value: "-1.7976931348623157e+308")

#### 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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