Baseline profile - Faster apps in one afternoon

Video link: https://www.youtube.com/watch?v=ZDMXr-xCS04

Transcript

1. Baseline profile Faster Apps in one afternoon ینیسح دواد دیس همانرب سیون دیوردنا رازاب هفاک زا @davud_hosseiny
2. Story: Bazaar Debug GPU overdraw Memory profiler and leak canary Android Studio CPU profiler CPU profiling Memory leaks Overdraw
3. Story: Bazaar Debug GPU overdraw Memory profiler and leak canary Android Studio CPU profiler CPU profiling Memory leaks Overdraw
4. Story: Bazaar 11% faster startup Baseline profile
5. Performance improvements 40% Faster App startup Why? Casestudy: Play store Library load time improvement Uses jetpack compose
6. Performance improvements 30% Faster App startup Why? Casestudy: Google maps 2.4% more searches Business impact
7. Why? “Zomato’s performance gains helped them create a much smoother experience. Further UI improvements and caching, reduced the janking too.” “These relatively simple improvements led to a dramatic 21% average reduction in app startup time and a 5% increase in driver sessions. ” Casestudy: Others
8. Audiences ؟نتسه دیوردنا ناسیون همانرب ایک ؟ندروخ یسنمروفرپ لکشم هب ایک ؟نیتفر یلح هار هچ ؟نراد ییانشآ لیافورپ نیال سیب اب ایک
9. Overview How to Implement? What? How to test? 02 03 01 What baseline is and how it affects our app How to implement baseline profile? How to test baseline profile
10. What? List of classes and methods for AOT(Ahead of time) complation Improve performance Ship with your app or library
11. What? Dex
12. What? Process Slow Start the app .dex Interpret .odex Start the app No Interpret Install time .dex .odex Large disk size Android 1.0 Android 5.0 Android 7.0 Install time .dex .odex Baseline profile .dex Start the app Less Interpret .odex .dex Small Disk Size Fast Fast
13. What? Critical user journeys Macrobenchmark UiAutomator Baseline collector Performance benchmark
14. How To? Select File > New > New Module Implement
15. How To? Implement
16. How To? @RunWith(AndroidJUnit4::class) @LargeTest class BaselineProfileGenerator { @get:Rule val rule = BaselineProfileRule() @Test fun generate() { Implement
17. How To? @Test fun generate() { rule.collect( packageName = InstrumentationRegistry.getArguments().getString("targetAppId")!! ) { // profile block } } Implement
18. How To? Implement
19. How To? @Test fun generate() { rule.collect( packageName = InstrumentationRegistry.getArguments().getString("targetAppId")!! ) { pressHome() // Start default activity for your app startActivityAndWait() device.wait(Until.hasObject(By.res("movieImage")), 2_000) } } Implement
20. How To? Implement LazyVerticalGrid( modifier = Modifier.semantics { testTagsAsResourceId = true }, ) { items(… Image( modifier = Modifier.testTag("movieImage"), // … ) ) }
21. How To? @Test fun generate() { rule.collect( packageName = InstrumentationRegistry.getArguments().getString("targetAppId")!!, stableIterations = 3, maxIterations = 15, strictStability = false, includeInStartupProfile = true ) { pressHome() // Start default activity for your app startActivityAndWait() device.wait(Until.hasObject(By.res("movieImage")), 2_000) } Implement
22. How To? Implement
23. How To? Test
24. @RunWith(AndroidJUnit4::class) @LargeTest class StartupBenchmarks { @get:Rule val rule = MacrobenchmarkRule() private fun benchmark() { How To? Test
25. private fun benchmark() { rule.measureRepeated( packageName = InstrumentationRegistry.getArguments().getString("targetAppId")!!, metrics = listOf(StartupTimingMetric()), compilationMode = CompilationMode.Partial(BaselineProfileMode.Require), iterations = 10, startupMode = StartupMode.COLD, setupBlock = { pressHome() }, measureBlock = { startActivityAndWait() device.wait(Until.hasObject(By.res("movieImage")), 2_000) } ) } How To? Test
26. private fun benchmark(complationMode: ComplationMode) { rule.measureRepeated( packageName = InstrumentationRegistry.getArguments().getString("targetAppId")!!, metrics = listOf(StartupTimingMetric()), compilationMode = complationMode, iterations = 10, startupMode = StartupMode.COLD, setupBlock = { pressHome() }, measureBlock = { startActivityAndWait() device.wait(Until.hasObject(By.res("movieImage")), 2_000) } ) } How To? Test
27. @Test fun startupCompilationNone() = benchmark(CompilationMode.None()) @Test fun startupCompilationBaselineProfiles() = benchmark(CompilationMode.Partial(BaselineProfileMode.Require)) private fun benchmark(complationMode: ComplationMode) { rule.measureRepeated( packageName = InstrumentationRegistry.getArguments().getString("targetAppId")!!, metrics = listOf(StartupTimingMetric()), compilationMode = complationMode, // ... How To? Test
28. How To? Test Time to initial display (TTID): is the time it takes to display the first frame of the app's UI.
29. How To? Test Fully drawn reportFullyDrawn() ReportDrawn()
30. How To? Implement LazyVerticalGrid( modifier = Modifier.semantics { testTagsAsResourceId = true }, ) { // items (… Image( modifier = Modifier.testTag("movieImage"), // … ) ReportDrawn() }
31. How To? Test
32. Notes • Non-Google-Play-Store app distribution channels might not support using Baseline Profiles at installation. Users of apps installed through these channels don't see the benefits until background dexopt runs—which is likely overnight. • Baseline generation on any rooted device or Android 13 or higher(Macrobenchmark 1.2.0-alpha06). Test on Real device. • Repetitively Update baseline profile. • Mock api requests to have stable generation and test.
33. RESOURCES Videos • https://www.youtube.com/watch?v=WWdDzX grkmg • https://www.youtube.com/watch?v=yJm5On5 Gp4c Other resources • https://developer.android.com/topic/performa nce/baselineprofiles/overview • نیبج قرع