Benchmarking your application

on YouTube ↗43m

" summary

Android Studio profiler and systrace expose method-level CPU, memory and network timing so it’s possible to pinpoint the slow method; Perfetto provides a nicer Perfetto UI and can trace on-device. Jetpack Benchmark runs a block repeatedly (dozens of iterations, typically ~50) and emits JSON nanoseconds timings and medians so CI can compare before/after. Datadog captures logs metrics and spans to spot real‑user regressions and integrates with Firebase Test Lab; a Gradle fail-on-threshold plugin enforces limits and Jetpack Benchmark gives repeatable measurements.

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" chapters (13)

1. 0:00Benchmarking your app's performance
2. 6:02Making sure the code works Unit Testing - Instrumented Testing Manual Testing Mutation Testing
3. 6:55Tools Android Studio Profiler
4. 15:03When should you use it? When you have a specific performance issue When you want to optimize a specific part of the code To debug a tricky algorithm (nested loops, concurrency)
5. 16:43Benchmark Overview
6. 17:07Jetpack Benchmark Library
7. 17:32Benchmark Test Class
8. 17:51Benchmark Test Function
9. 19:33Run the Benchmark
10. 23:35When should you use it? Monitor critical parts of your logic in CI When refactoring a specific feature When writing code executed on the main thread
11. 25:17App Performance Monitoring Live performance from the trenches
12. 31:29When should you use it? Monitor key aspects of your app in the wild
13. 32:39Wrapping up

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