Chasing 60 FPS: Frame Time Profiling in Jetpack Compose
summary
Contains step‑by‑step use of JankStats, Layout Inspector, system tracing and macrobenchmark tooling; explains baseline profiles and how a production‑equivalent build plus baseline profiling yields a 60% improvement in a login flow at NordVPN; demonstrates tracing custom spans, reading frame timing and frame overrun metrics, sizing images with Coil to avoid 4K decoding, using graphicLayer to avoid relayout, reducing unnecessary recompositions, and failing CI on performance regressions.
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chapters (18)
- 0:0060 FPS goal
- 1:45Performance matters
- 3:55Frame drops and jank
- 5:45Android Studio profiling
- 7:49Android Profiler rules
- 9:15Custom tracing in Compose
- 10:18Baseline profiles
- 11:43Layout inspector
- 13:07Macrobenchmark overview
- 15:36Perfetto tracing
- 17:45Causes of jank
- 19:08Stable composables
- 20:56Benchmark tools
- 21:39JankStats analysis
- 22:22Real user monitoring
- 24:52Firebase Performance traces
- 25:56Monitoring workflow
- 27:10Q&A
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