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- 1. Android Performance Tools Heghine Hakobyan
- 2. #GoNative performance noun 1. an act of presenting a play 2. the action or process of performing a task or function
- 4. #GoNative
- 5. #GoNative Unhappy Users Bad Reviews Unhappy Developers Bad Applications
- 7. 60 Frames Per Second ≅16ms #GoNative
- 8. #GoNative S C R E E N GPURASTERIZATION CPU Polygons Textures UI ELEMENTS UI Thread Render Thread
- 9. #GoNative UPDATE UPDATE UPDATE UPDATE 16ms 16ms 16ms 16ms DRAW! DRAW! DRAW! DRAW!
- 10. #GoNative UPDATE 24ms UPDATE UPDATE 16ms 32ms 16ms DRAW! DRAW! DRAW! Ooops! dropped frame
- 11. #GoNative GPU Rendering 16ms Swap Buffers Command Issue Sync & Upload Draw Measure/Layout Animation Input Handling Vsync Delay
- 12. #GoNative GPU Overdraw 1 time 2 times 3 times ≥ 4 times 4x
- 14. #GoNative ./systrace.py sched idle wm gfx view dalvik input -t 5 -o trace.html -b 96000 ./systrace.py [categories] [options]
- 15. #GoNative Best Practices ● Simplify view hierarchy - use ConstraintLayout ● Do NOT set background color on ImageView ● Be careful with custom views
- 19. #GoNative Best Practices ● Avoid non-static inner classes - AsyncTasks/Threads ● Do NOT store references to Activity/View in AsyncTasks ● Never store static references to Context/View
- 21. #GoNative Links ● https://developer.android.com/studio/profile/inspect-gpu-rendering.html ● https://developer.android.com/studio/command-line/systrace.html ● https://developer.android.com/studio/profile/index.html ● Android Performance Patterns on YouTube!