dotnet / dotnet/perf-autofiling-issues
[Perf] Linux/x64: 1 Regression on 6/24/2026 8:46:56 PM +00:00
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Description
### Run Information
Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [e3cbc00cd3e0b511ad36dc240010eb2b9eefc3b7](https://github.com/dotnet/runtime/commit/e3cbc00cd3e0b511ad36dc240010eb2b9eefc3b7)
Compare | [cd27dcec16016aa54be6a09962d1b509150cf99b](https://github.com/dotnet/runtime/commit/cd27dcec16016aa54be6a09962d1b509150cf99b)
Diff | [Diff](https://github.com/dotnet/runtime/compare/e3cbc00cd3e0b511ad36dc240010eb2b9eefc3b7...cd27dcec16016aa54be6a09962d1b509150cf99b)
Configs | CompilationMode:wasm, RunKind:micro, RuntimeType:coreclr
### Regressions in System.Collections.TryGetValueTrue<String, String>
Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|
- [ImmutableSortedDictionary - 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.TryGetValueTrue*'
```
### System.Collections.TryGetValueTrue<String, String>.ImmutableSortedDictionary(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)
Contributor guide
No contributing guide indexed for this repository
Research direction
Start with the benchmark source at src/benchmarks/micro/libraries/System.Collections/TryGetValue/TryGetValueTrue.cs#L127-L136, then run the provided benchmarks_ci.py command using the reported filter. Compare the baseline and test commits and review the linked test report and history graph; done means the regression is explained and addressed, with the benchmark verifying the result.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python, wasm
- Domain
- performance, testing
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100