Improve app performance with Android Studio Profilers
summary
Demos Android Studio Profilers (Network, Memory, CPU, Energy) in 3.1/3.2 and shows concrete fixes: network profiler reveals request/headers and thread that issued them; memory profiler gives live allocation timelines and finds many Strings allocated in onDraw; JNI global references appear in a special JNI heap; systrace integration lets developers profile threads and CPU scheduling; replacing String.format cuts a draw call from ~38 ms to ~13 ms; sessions import/export and debugger API tracing simplify capture. systrace in CPU profiler start method trace on startup energy profiler shows alarms and wake locks
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chapters (16)
- 0:00Start
- 0:27Demo
- 0:47Energy Profiler
- 1:29Systrace
- 2:41Clock App
- 2:57Network Profiler
- 5:15Live a Location Tracking
- 6:49Global References
- 8:10Sessions Panel
- 9:47Recording a Method Trace on Startup
- 11:26The Flame Chart
- 15:21Colonel Section
- 17:03Draw Time
- 18:19Cpu Profiler
- 21:43Simple Perf
- 23:20Cpu and Network
