jetpack_benchmark.pdf

Transcript

1. JetpackBenchmarkΛ ࢼܸͪ͠ @Takako
2. ࣗݾ঺հ
3. ࣗݾ঺հ ɾTakako(@kotokoto_fire) ɾAndroidΤϯδχΞ ɾmenusͱ͍͏ݙཱΞϓϦΛ࡞ͬͯ·͢ ɾՆͳͷͰiOS/αʔόͷ։ൃ΋࢝Ί·ͨ͠
4. The Jetpack Benchmark library
5. The Jetpack Benchmark library Kotlin/JavaϕʔεͷίʔυͷύϑΥʔϚϯε ΛଌఆͰ͖ΔJetpack libraryɻϕϯνϚʔΫ ݁Ռ͸AndroidStudioͷconsole্΍xml/ JSONܗࣜͰΞ΢τϓοτՄೳɻ IUUQTEFWFMPQFSBOESPJEDPNTUVEJPQSPpMFCFODINBSL
6. ಋೖํ๏
7. ಋೖํ๏ android { : defaultConfig { testInstrumentationRunner "androidx.benchmark.AndroidBenchmarkRunner" } : } dependencies { : // Testing dependencies androidTestImplementation "androidx.benchmark:benchmark:1.0.0-alpha01" } QSPKFDU@SPPUNPEVMF@EJSCVJMEHSBEMF
8. ಋೖํ๏ <manifest xmlns:android="http://schemas.android.com/apk/ res/android" : > <application : android:debuggable="false" > : </manifest> QSPKFDU@SPPUNPEVMF@EJSTSDBOESPJE5FTU"OESPJE.BOJGFTUYNM
9. ಋೖํ๏
10. ಋೖํ๏
11. ϕϯνϚʔΫΛଌఆ͢Δ
12. ϕϯνϚʔΫΛଌఆ͢Δ @RunWith(AndroidJUnit4::class) class RecyclerViewBenchmark { : } IUUQTHJUIVCDPNHPPHMFTBNQMFTBOESPJEQFSGPSNBODF
13. ϕϯνϚʔΫΛଌఆ͢Δ @RunWith(AndroidJUnit4::class) class RecyclerViewBenchmark { @get:Rule val benchmarkRule = BenchmarkRule() } IUUQTHJUIVCDPNHPPHMFTBNQMFTBOESPJEQFSGPSNBODF
14. ϕϯνϚʔΫΛଌఆ͢Δ @RunWith(AndroidJUnit4::class) class RecyclerViewBenchmark { @Test fun simpleScroll() { activityScenario.onActivity { benchmarkRule.measureRepeated { it.recyclerView.scrollBy( 0, it.recyclerView.getLastChild().height ) } } } } IUUQTHJUIVCDPNHPPHMFTBNQMFTBOESPJEQFSGPSNBODF
15. ϕϯνϚʔΫΛଌఆ͢Δ inline fun BenchmarkRule.measureRepeated( crossinline block: BenchmarkRule.Scope.() -> Unit ) { val localState = getState() val localScope = scope while (localState.keepRunningInline()) { block(localScope) } }
16. ϕϯνϚʔΫΛଌఆ͢Δ Testing started at 02:04 ... 06/04 02:04:30: Launching 'RecyclerViewBenchmark' on asus ASUS_Z01MDA. Running tests $ adb shell am instrument -w -r -e debug false -e class 'com.example.benchmark.RecyclerViewBenchmark' com.example.benchmark.test/ androidx.benchmark.AndroidBenchmarkRunner Waiting for process to come online... Started running tests benchmark: 175,625 ns RecyclerViewBenchmark.simpleScroll Tests ran to completion.
17. ϕϯνϚʔΫΛଌఆ͢Δ { "name": "simpleScroll", "classname": "com.example.benchmark.RecyclerViewBenchmark", "nanos": 184218, "warmupIterations": 1387, "repeatIterations": 2, "runs": [ 250625, 191588, 189687, 
    HSBEMFX
    CFODINBSLDPOOFDUFE$IFDL
18. ؾΛ͚ͭΔ͜ͱ
19. debuggableΛdisable ʹ͢Δ
20. emulatorΛ࢖Θͳ͍
21. proguard / R8Λ enableʹ͢Δ
22. ؾΛ͚ͭΔ͜ͱ Started running tests benchmark: WARNING: Debuggable Benchmark benchmark: Benchmark is running with debuggable=true, which drastically reduces benchmark: runtime performance in order to support debugging features. Run benchmark: benchmarks with debuggable=false. Debuggable affects execution speed benchmark: in ways that mean benchmark improvements might not carry over to a benchmark: real user's experience (or even regress release performance). benchmark: benchmark: 196,119 ns DEBUGGABLE_RecyclerViewBenchmark.simpleScroll Tests ran to completion.
23. Clock
24. Clock ~Ramp ɾClock͕ಈ͖࢝Ίͨࡍɺ໿100msec΄Ͳ௿͍प ೾਺ͰՔಇͯ͠͠·͏ ɾBenchmarkLibraryͰ͸ɺ͜ͷ࣌ʹϕϯνϚʔΫ Λଌఆ͢ΔͷΛ๷͙ͨΊɺ࠷খ250msecͷ΢Υʔ ϛϯάΞοϓΛ࣮ߦ͢Δ
25. Clock ~thermal slottling ɾ୺຤͕೤͘ͳΔͱClockͷಈ࡞Λམͱ͠ ͯɺྫྷ٫ϞʔυʹೖΔ ɾ͜ͷͱ͖ɺClockप೾਺͸ஶ͘͠Լ͕ͬͯ ͠·͏
26. Clock ~thermal slottling ɾClockΛlock͢Δ ɾ͕ɺͦΕʹ͸rootݖݶ͕ඞཁ ɾ./gradlew lockClocks ͱ ./gradlew unlockClocks ͰϩοΫɾϩοΫղআͰ͖Δ
27. Clock ~thermal slottling ɾWindow#setSustainedPerformanceMode() Λ࢖͏ ɾ͜ΕΛ࢖͏ͱɺҰఆͷύϑΥʔϚϯεΛҡ࣋Ͱ͖ Δ ɾར༻Ͱ͖ΔOS͸NҎ্͔ͭɺҰ෦ͷ୺຤ͷΈ (Nexus6PͳͲ)
28. Clock ~thermal slottling ɾThread.sleep()Λ࢖ͬͯଌఆΛҰ࣌தஅ͢Δ ɾϕϯνϚʔΫͷؒʹthermal slottling͕ൃੜ͔ͨ͠ ΛνΣοΫ͢ΔϕϯνϚʔΫΛڬΉ ɾthermal slottling͕ൃੜ͍ͯͨ͠ΒɺϕϯνϚʔΫ ͷ݁ՌΛࣺͯɺthread.sleepΛ࣮ߦ͢Δ
29. ͦΕ͔ΒͦΕ͔Β…
30. ·ͱΊ
31. ·ͱΊ ɾαΫοͱଌఆ͢Δ͚ͩͳΒͱΓ͋͑ͣͰ͖ͦ͏ ɾAS3.5͔Β͸moduleςϯϓϨʔτ͕͋ΓɺAndroidTest ഑ԼʹςετΛهࡌͯ͠ɺಈ͔͢͜ͱ͕Ͱ͖Δ ɾܧଓతʹଌఆɾվળΛ܁Γฦ͢ͷͰ͋Ε͹ɺߟྀ͢Δ ఺͕୔ࢁ͋Δ
32. Let’s try to use benchmark library
33. ͝੩ௌ ͋Γ͕ͱ͏͍͟͝·ͨ͠ʂ