dotnet / dotnet/perf-autofiling-issues

[Perf] Windows/x64: 1 Regression on 7/31/2026 9:37:20 AM +00:00

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arch-x64 branch-11.0 compilationmode-tiered kind-nativeaot_scenarios Noise os-windows perf-regression runkind-nativeaot_scenarios untriaged
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Description

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [8c1bd18b8c65722ac42857e5bb2fe68d67f9f63d](https://github.com/dotnet/sdk/commit/8c1bd18b8c65722ac42857e5bb2fe68d67f9f63d)
Compare | [bfb5366c2c6e45c00cd194bc21c623d32fcd4066](https://github.com/dotnet/sdk/commit/bfb5366c2c6e45c00cd194bc21c623d32fcd4066)
Diff | [Diff](https://github.com/dotnet/sdk/compare/8c1bd18b8c65722ac42857e5bb2fe68d67f9f63d...bfb5366c2c6e45c00cd194bc21c623d32fcd4066)
Configs | CompilationMode:tiered, RunKind:nativeaot_scenarios

### Regressions in SOD - Empty Console NativeAOT - NativeAOT

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

  • [SOD - Empty Console NativeAOT - NativeAOT - SOD - Empty Console NativeAOT - NativeAOT]()
  • [ADX - Test Multi Config Graph]()
| 1.07 MB | 1.11 MB | 1.04 | 0.00 | True | | |

![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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'SOD - Empty Console NativeAOT - NativeAOT*'
```

### SOD - Empty Console NativeAOT - NativeAOT

#### 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 command in the Repro section and review the baseline, compare commit, diff, and linked NativeAOT test report. Compare the Empty Console NativeAOT result on Windows/x64 and determine the change responsible for the reported size regression; done means the regression is explained and addressed or triaged with supporting benchmark results.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
operating-systems, performance
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
35/100

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