Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
App startup time with Dynamic/Static frameworks
Search
Shota Kashihara
March 19, 2019
Technology
4
930
App startup time with Dynamic/Static frameworks
Shota Kashihara
March 19, 2019
Tweet
Share
More Decks by Shota Kashihara
See All by Shota Kashihara
ふりかえり “Demystify SwiftUI”
shotakashihara
0
320
UI デザインシステム
shotakashihara
2
2.8k
アプリのログをチーム外で活用してもらうためにやったこと
shotakashihara
0
630
iOS エンジニアが KMM で2つの アプリのログイン処理を共通化した話
shotakashihara
1
730
iOS 14 からの Universal Links
shotakashihara
1
4k
iOSアプリ自動ログテストのススメ
shotakashihara
2
1.4k
デバイス管理を App Store Connect API でやってみよう
shotakashihara
2
790
Trace outside of stack trace
shotakashihara
11
2.3k
Other Decks in Technology
See All in Technology
pprof vs runtime/trace (FlightRecorder)
task4233
0
160
GA technologiesでのAI-Readyの取り組み@DataOps Night
yuto16
0
260
M5製品で作るポン置きセルラー対応カメラ
sayacom
0
140
Goにおける 生成AIによるコード生成の ベンチマーク評価入門
daisuketakeda
2
100
Goに育てられ開発者向けセキュリティ事業を立ち上げた僕が今向き合う、AI × セキュリティの最前線 / Go Conference 2025
flatt_security
0
350
10年の共創が示す、これからの開発者と企業の関係 ~ Crossroad
soracom
PRO
1
170
バイブコーディングと継続的デプロイメント
nwiizo
2
410
AI時代だからこそ考える、僕らが本当につくりたいスクラムチーム / A Scrum Team we really want to create in this AI era
takaking22
6
3.3k
Why React!?? Next.jsそしてReactを改めてイチから選ぶ
ypresto
10
4.4k
ACA でMAGI システムを社内で展開しようとした話
mappie_kochi
0
240
AIAgentの限界を超え、 現場を動かすWorkflowAgentの設計と実践
miyatakoji
0
130
Optuna DashboardにおけるPLaMo2連携機能の紹介 / PFN LLM セミナー
pfn
PRO
1
870
Featured
See All Featured
ReactJS: Keep Simple. Everything can be a component!
pedronauck
667
120k
GraphQLとの向き合い方2022年版
quramy
49
14k
For a Future-Friendly Web
brad_frost
180
9.9k
Intergalactic Javascript Robots from Outer Space
tanoku
273
27k
The Psychology of Web Performance [Beyond Tellerrand 2023]
tammyeverts
49
3.1k
Reflections from 52 weeks, 52 projects
jeffersonlam
352
21k
Typedesign – Prime Four
hannesfritz
42
2.8k
Scaling GitHub
holman
463
140k
Build The Right Thing And Hit Your Dates
maggiecrowley
37
2.9k
Building Flexible Design Systems
yeseniaperezcruz
329
39k
Speed Design
sergeychernyshev
32
1.1k
Easily Structure & Communicate Ideas using Wireframe
afnizarnur
194
16k
Transcript
©2019 Wantedly, Inc. App startup time with Dynamic/Static frameworks try!
Swift Pre Talk 2019 Mar 19, 2019 - @ShotaKashihara
©2019 Wantedly, Inc. Shota Kashihara ɾWantedly People ɾiOS ɾSwift/Double base
ɾTwitter: @oakland76 ɾGitHub: @ShotaKashihara
©2019 Wantedly, Inc. ɾXcode ͱ Frameworks ͷྺ࢙ ɾΞϓϦͷىಈͱ Frameworks ͷؔ
ɾFrameworks ͷߏΛߟ͑Δ ࠓ͢͜ͱ
©2019 Wantedly, Inc. Xcode ͱ Frameworks ͷྺ࢙
©2019 Wantedly, Inc. Xcode ͱ Frameworks ͷྺ࢙ Dynamic/Static Framework Λ
͓͞Β͍
©2019 Wantedly, Inc. Xcode ͱ Frameworks ͷྺ࢙ Xcode 5 #2013
ɹɾOnly Static Library (Obj-C) Dynamic/Static Framework Λ ͓͞Β͍
©2019 Wantedly, Inc. Xcode ͱ Frameworks ͷྺ࢙ Xcode 5 #2013
ɹɾOnly Static Library (Obj-C) Xcode 6 #2014 ɹɾSupport embedded frameworks (Dynamic Library) Dynamic/Static Framework Λ ͓͞Β͍
©2019 Wantedly, Inc. Xcode ͱ Frameworks ͷྺ࢙ Xcode 5 #2013
ɹɾOnly Static Library (Obj-C) Xcode 6 #2014 ɹɾSupport embedded frameworks (Dynamic Library) Xcode 9 #2017 ɹɾSupport static library with Swift ɹɹɾCocoa Pods (v1.5.0), Carthage (v0.30.1) ʹͯ ରԠࡁ Dynamic/Static Framework Λ ͓͞Β͍
©2019 Wantedly, Inc. Dynamic/Static Framework
©2019 Wantedly, Inc. Framework ֦ுࢠ .framework ɾϥΠϒϥϦ ɾ(όϯυϧ) ɹɾNib ɹɾը૾
ɹɾϔομʔϑΝΠϧ ͳͲΛ·ͱΊͨϑΥϧμ Dynamic/Static Framework
©2019 Wantedly, Inc. Dynamic Framework .framework ɾಈతϥΠϒϥϦ (.dylib, or ֦ுࢠͳ͠)
ɹΛؚΜͩ Framework Dynamic/Static Framework
©2019 Wantedly, Inc. Dynamic Framework .framework ɾಈతϥΠϒϥϦ (.dylib, or ֦ுࢠͳ͠)
ɹΛؚΜͩ Framework ɾArchive ɹɾ<YourApp>/Frameworks/ Լʹ ɹɹ.framework ͷ··ίϐʔ Dynamic/Static Framework
©2019 Wantedly, Inc. Static Framework .framework ɾ੩తϥΠϒϥϦ (.a, or ֦ுࢠͳ͠)
ɹΛؚΜͩ Framework Dynamic/Static Framework
©2019 Wantedly, Inc. Static Framework .framework ɹ ɾArchive ɹɾ੩తϥΠϒϥϦίϯύΠϧ࣌ʹ੩తϦϯΧʹΑͬͯɺ ɹɹ࣮ߦՄೳϑΝΠϧʹؚ·ΕΔ(୯ҰͷϑΝΠϧʹͳΔ)
ɹɾϦιʔεϑΝΠϧΞϓϦέʔγϣϯԼʹίϐʔͯ͠ɺ ɹɹ࣮ߦՄೳϑΝΠϧ͔Βݟ͑Δঢ়ଶʹ͢Δඞཁ͋Γ Dynamic/Static Framework ← Static Library ίϯύΠϧͰ ࣮ߦՄೳϑΝΠϧͷҰ෦ʹͳΔ ɾ੩తϥΠϒϥϦ (.a, or ֦ுࢠͳ͠) ɹΛؚΜͩ Framework
©2019 Wantedly, Inc. Dynamic Library ͷ 2ͭͷಛ ɾDynamic Linking ɾDynamic
Loading Dynamic/Static Framework
©2019 Wantedly, Inc. Dynamic Linking ɾΞϓϦ࣮ߦ࣌ʹϦϯΫ͕ߦΘΕΔ͜ͱ ɾ࣮ߦՄೳϑΝΠϧΛখ͘͞อͭ͜ͱ͕Ͱ͖Δ Dynamic/Static Framework
©2019 Wantedly, Inc. Dynamic Loading ɾ`dlopen()` ɾΞϓϦىಈ࣌Ͱͳ͘ɺඞཁͳͱ͖ʹϩʔυΛ࢝ΊΔ͜ͱ͕Ͱ͖Δ ɾiOS Ͱ͍ͬͯΔ໘Λ͋·Γݟͨ͜ͱ͕ͳ͍ Dynamic/Static
Framework
©2019 Wantedly, Inc. ΞϓϦͷىಈʹͲ͏͍͏ϑϩʔ͕͋Δ͔
©2019 Wantedly, Inc. exec() to main()
©2019 Wantedly, Inc. exec() to main() ΞϓϦ্ཱ͕͕ͪΔ·ͰʹཪଆͰى͖͍ͯΔ͜ͱ ※ WWDC 2016
(Optimizing App Startup Time) ʹͯݴٴ͞ΕͨςʔϚ exec() to main()
©2019 Wantedly, Inc. exec() 1. Kernel maps your application into
new address space 2. Kernel loads helper program 3. Dyld runs in-process exec() to main()
©2019 Wantedly, Inc. exec() 1. Kernel maps your application into
new address space 2. Kernel loads helper program 3. Dyld runs in-process exec() to main()
©2019 Wantedly, Inc. exec() 1. Kernel maps your application into
new address space 2. Kernel loads helper program 3. Dyld runs in-process exec() to main()
©2019 Wantedly, Inc. exec() 1. Kernel maps your application into
new address space 2. Kernel loads helper program 3. Dyld runs in-process exec() to main()
©2019 Wantedly, Inc. exec() 1. Kernel maps your application into
new address space 2. Kernel loads helper program 3. Dyld runs in-process Dyld: ࣮ߦ࣌ʹ dynamic library ΛಡΈࠐΉϓϩηεͷ͜ͱ exec() to main()
©2019 Wantedly, Inc. Dyld Steps 1. Map all dependent dylibs,
recurse 2. Rebase all images 3. Bind all images 4. ObjC prepare images 5. Run initializers exec() to main()
©2019 Wantedly, Inc. Dyld Steps 1. Map all dependent dylibs,
recurse 2. Rebase all images 3. Bind all images 4. ObjC prepare images 5. Run initializers exec() to main()
©2019 Wantedly, Inc. Dyld Steps 1. Map all dependent dylibs,
recurse 2. Rebase all images 3. Bind all images 4. ObjC prepare images 5. Run initializers exec() to main()
©2019 Wantedly, Inc. Dyld Steps 1. Map all dependent dylibs,
recurse 2. Rebase all images 3. Bind all images 4. ObjC prepare images 5. Run initializers exec() to main() ͜ΕΒ͕ Dynamic Framework ͷ͚ͩ࠶ؼ͢Δ
©2019 Wantedly, Inc. Dyld Steps ͜͜ʹͲΕ͘Β͍ͷ͕͔͔͍࣌ؒͬͯΔ͔ΛݟΔ exec() to main()
©2019 Wantedly, Inc. DYLD_PRINT_STATISTICS exec() to main()
©2019 Wantedly, Inc. DYLD_PRINT_STATISTICS exec() to main() ΞϓϦΛ্ཱͪ͛Δͱ main() ·Ͱʹ
Dyld ʹ͔͔͕ͬͨ࣌ؒදࣔ
©2019 Wantedly, Inc. exec() to main() ɾΞϓϦͷىಈ࣌ʹ Dyld ͕࠶ؼతʹ Framework
ΛϝϞϦʹஔ͢Δ ɾDynamic Framework ͷ͚ͩΦʔόʔϔου͕૿͑Δ ɹ exec() to main()
©2019 Wantedly, Inc. exec() to main() ɾΞϓϦͷىಈ࣌ʹ Dyld ͕࠶ؼతʹ Framework
ΛϝϞϦʹஔ͢Δ ɾDynamic Framework ͷ͚ͩΦʔόʔϔου͕૿͑Δ ɹ ɹˠ ෳͷ Dynamic Frameworks Λ Static Library ͱͯ͠Ϗϧυͯ͠ɺ ɹɹ ͦΕΒΛ·ͱΊͨ Dynamic Frameworks Λ࡞Δ exec() to main()
©2019 Wantedly, Inc. ΞϓϦ ͷߏ Domain.framework Main.app Watch.app C.framework B.framework
(3rd party) A.framework
©2019 Wantedly, Inc. ΞϓϦ ͷߏ Domain.framework Main.app Watch.app Umbrella frameworks
C.framework B.framework (3rd party) A.framework
©2019 Wantedly, Inc. ΞϓϦ ͷߏ Domain.framework Main.app Watch.app Umbrella frameworks
C.framework B.framework (3rd party) A.framework Static linking
©2019 Wantedly, Inc. ·ͱΊ
©2019 Wantedly, Inc. Summary ɾDynamic frameworks ͕૿͑Δͱ Dyld ͷίετ͕͔͔Δ ɾΞϓϦͷىಈ͕ؾʹͳͬͨΒ
DYLD_PRINT_STATISTICS ΦϓγϣϯͰ ɹDynamic Library ͷϩʔυʹ͔͔͍ͬͯΔ࣌ؒΛݟͯΈΑ͏ ɾDynamic frameworks Λ Static Frameworks ʹஔ͖͑ͯ ɹDyld ͷίετΛݮΒ͢͜ͱબࢶͷҰͭ App startup time with Dynamic/Static frameworks
©2019 Wantedly, Inc. Have a nice try! Swift day