Finding and Fixing Performance Problems

on YouTube ↗45m

" summary

Uses real Play Store profiling and shows concrete wins not vague theory: finds UI thread pauses up to ~300 ms caused by heavy inflation and many views, reports 450 visible views / 722 instantiated views (sometimes thousands cached), exposes costly uploads like 12 ms+ texture uploads for large bitmaps (e.g. 1080×500), and traces overdraw and alpha costs with systrace and GFX info. Demos Android Studio profiler, Hierarchy Viewer, meminfo, and FrameMetricsAggregator and shows where to fix actual hotspots.

AI-written summary · about

" chapters (12)

1. 0:00Start
2. 1:31A Random App
3. 4:07Overdraw
4. 9:37hierarchyviewer
5. 12:51adb shell dumpsys gfxinfo
6. 17:36adb shell dumpsys meminfo
7. 19:30Profile GPU Rendering
8. 21:15Android Studio Profilers
9. 22:11Android Studio: Memory Profile
10. 22:57Android Studio: CPU Profiler
11. 41:29framestats
12. 43:42Better Yet: FrameMetricsAggregator

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