dotnet / dotnet/perf-autofiling-issues

[Perf] Windows/x64: 1 Regression on 7/28/2026 10:57:43 AM +00:00

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arch-x64 branch-11.0 codegentype-nativeaot compilationmode-tiered kind-maui_scenarios_ios Look Again maui perf-regression runkind-maui_scenarios_ios runtime-coreclr runtimetype-coreclr untriaged
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Description

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Mac OS X 10.18
Queue | IPhone
Baseline | [72fa82ba43d9e5171e225027471b51b5abc25d98](https://github.com/dotnet/sdk/commit/72fa82ba43d9e5171e225027471b51b5abc25d98)
Compare | [36ea4de4a4409ace6bdf48c2dae2b6713f47c1b9](https://github.com/dotnet/sdk/commit/36ea4de4a4409ace6bdf48c2dae2b6713f47c1b9)
Diff | [Diff](https://github.com/dotnet/sdk/compare/72fa82ba43d9e5171e225027471b51b5abc25d98...36ea4de4a4409ace6bdf48c2dae2b6713f47c1b9)
Configs | CodeGenType:NativeAOT, CompilationMode:tiered, RunKind:maui_scenarios_ios, RuntimeType:coreclr

### Regressions in Build Time - .NET iOS Default Template

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

  • [NET iOS Default Template - Publish Time]()
  • [ADX - Test Multi Config Graph]()
| 72.36 s | 83.72 s | 1.16 | 0.00 | True | | |

![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 'Build Time - .NET iOS Default Template*'
```

### Build Time - .NET iOS Default Template

#### 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 linked performance report and the benchmarking workflow documentation, then run scripts/benchmarks_ci.py using the supplied filter to reproduce the .NET iOS template publish-time regression. Compare the baseline and test results and identify the change associated with the increase from 72.36 s to 83.72 s. Done means the regression is explained and the benchmark no longer shows the reported increase.

Written by the indexing model from the issue text.

Assessment

Tech stack
ios, macos, python
Domain
build-system, mobile-dev, performance
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
38/100

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