ビルド・プロファイリング

I presented this talk on build profiling at React Native Meetup #20 (featuring Meta and Callstack) on Feb 18th 2025.

Transcript

1. ϏϧυɾϓϩϑΝΠϦϯά Jamie Birch δΣΠϛʔ ό ʔ ν ໊ බ
2. ಺༰ iOSͱAndroidͷσόοάϞʔυͷίʔϧυϏϧυͷϓϩϑΝΠϧΛ঺ հ͢Δɻ ॱ൪ʹͦΕͧΕ͔ΒԿֶ͕΂Δ͔ݟͯΈΑ͏ɻ
4. React-NativeͷίΞ expo-modules-core Expo Modules ωΠςΟϒɾϞδϡʔϧ
 ʢྫɿreact-native-webviewʣ React-RCTFabric FabricͷϞδϡʔϧʁ Codegen React-Fabric ґଘੑͷͳ͍ϥΠϒϥϦʔ ʢྫɿyogaʣ
6. ߹ܭɿ1m 55s :*:buildCMakeDebug ٬ΞʔΩςΫνϟʢarm64-v8aɺarmeabi-v7aɺx86ɺx86_64ʣ͕Ұͭͣͭɺ ॱ൪ʹϏϧυ͞ΕΔɻ app: 7.8 + 8.1 + 6.2 + 7.9 = 30ඵ expo-modules-core: 5.2 + 4.7 + 5.2 + 4.4 = 20ඵ react-native-quick-sqlite: 9.2 + 9.2 + 8.8 + 9.6 = 37ඵ react-native-screens: 1.5 + 1.4 + 1.4 + 1.4 = 6ඵ :react-native-quick-sqlite:buildCMakeDebug :expo-modules-core:buildCMakeDebug :app:buildCMakeDebug ˎ ˎ ˎ ˎ ˎ ˎ ˎ ˎ ˎ ˎ ˎ ˎ :react-native-screens:buildCMakeDebug ˎˎ ˎˎ :*:compileDebugKotlin expo-modules-core: ! 23ඵ ɹ├ expo-asset: 1ඵ ɹ├ expo-constants: 1ඵ ɹ├ expo-file-system: 4ඵ ɹ├ expo-font: 1ඵ ɹ├ expo-keep-awake: 1ඵ ɹ└ expo-splash-screen: 1ඵ react-native-screens: 14ඵ react-native-safe-area-context: 7ඵ react-native-webview: 7ඵ ˎ ˎ ˎ ˎ ˎ ˎ ˎ ˎ ˎ ˎ !
7. ݁࿦ • Ϗϧυʹ͸ɺฒྻॲཧͷεςʔδͱ௚ྻॲཧͷεςʔδͷ྆ํ͕ଘࡏ͢Δɻ • Ͱ͖ΔݶΓɺฒྻͰϏϧυΛ࣮ߦ͍ͨ͠ɻ • ΋ͪΖΜɺϓϦϏϧυ͞ΕͨϞδϡʔϧΛ࢖͏ͷ͕ཧ૝తͰ͋Δɻ • ࠓޙɺiOSͰReact NativeͷίΞ͸͞Βʹվળ͞ΕΔ༧ఆͰ͋Δɻ • ୭͔͕ຊ౰ʹbuildCMakeDebugͷઃఆΛௐࠪ͢Δ΂͖ɻ
8. ϓϩϑΟϧ ౦ژ ͷΤϯδχΞ @shirakaba @birch_js @shirakaba.bsky.social ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ʂ Jamie Birch δΣΠϛʔ ό ʔ ν ໊ බ