Individual skill
native-app-performance
Native app performance: xctrace, Time Profiler, traces, hotspots.
skills/native-app-performance/SKILL.md
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SKILL.mdcore · 1,946 bytesSKILL.mdcore · 1,946 bytesSKILL.mdcore · 1,946 bytesSKILL.mdcore · 1,946 bytesscripts/extract_time_samples.pyruns · 1,134 bytesscripts/record_time_profiler.shruns · 1,356 bytesscripts/top_hotspots.pyruns · 4,053 bytes
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# Native App Performance (CLI-only)
Goal: record Time Profiler via `xctrace`, extract samples, symbolicate, and propose hotspots without opening Instruments.
## Quick start (CLI)
1) Record Time Profiler (attach):
```bash
# Start app yourself, then attach
xcrun xctrace record --template 'Time Profiler' --time-limit 90s --output /tmp/App.trace --attach <pid>
```
2) Record Time Profiler (launch):