Jetpack Benchmark : Jetpack Component which help you Benchmark your Android AppPie_06_Javent Lienata
summary
Jetpack Benchmark runs instrumentation tests to measure real Android performance, with BenchmarkRule.measureRepeated, JSON output, and CI scripts that start a rooted emulator, lock CPU clocks on rooted emulator and pull artifacts. Example findings: iteration style shows only small tradeoffs but inline functions give large speedup (non-inline vs inline differs by orders of magnitude), inflating layouts reports ~41,000 ns for one layout, and the repo + Gradle setup for a separate benchmark module with debuggable=false works end-to-end.
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chapters (14)
- 0:00Introduction to Jetpack Benchmark
- 1:08Why benchmark your app
- 3:14Benchmarking Kotlin code examples
- 8:09Basics of manual benchmarking
- 11:26Jetpack Benchmark library overview
- 13:57Quick start setup guide
- 17:12Layout inflation benchmark example
- 20:21Additional Jetpack Benchmark configs
- 23:37CPU clock stability and locking
- 25:45Running benchmarks on CI
- 31:51Resources and further reading
- 32:36Q&A: Method performance trade-offs
- 34:53Q&A: When to benchmark methods
- 38:33Closing and thanks
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