今すぐできる、ユーザーとチームのためのiOS速度改善 / Gunosy Kaizen Night iOS development optimization

Gunosy カイゼン Night #1の発表資料です。

Transcript

1. ࠓ͙͢Ͱ͖Δɺ ϢʔβʔͱνʔϜͷͨΊͷ iOS଎౓վળ @__timakin__ / Gunosy ΧΠθϯ Night #1
2. ࣗݾ঺հ • Github: timakin / Twitter: @__timakin__ • Contributor of Go / golang.tokyo / roppongi-golunch • Gunosy ৽نࣄۀ։ൃࣨ ॴଐ • Go / Swift • Recently Contributed / Created • giginet/xcprofiler • mercari/gaurun • timakin/gopli • timakin/ssm2env • timakin/md2mid • timakin/autocompl
3. ߹ΘͤͯಡΈ͍ͨ https://speakerdeck.com/timakin/maikurotimudefalsegao-su-naxin-gui-kai-fa-wozhi-erukai-fa-fen-xi-ji-pan
4. ࠓ೔࿩͢͜ͱ • iOS(Swift)։ൃͷ଎౓ΧΠθϯ • ϢʔβʔͷͨΊͷ଎౓ΧΠθϯ • νʔϜͷͨΊͷ଎౓ΧΠθϯ
5. Goͷ࿩ɺ
 ͠·ͤΜʂ
6. Swift(iOSΞϓϦ)ྺ 3ϲ݄
7. ؒҧͬͯΔ఺͋Δ͔΋Ͱ͕͢ɺ ΑΖ͓͘͠ئ͍͠·͢ʂ
8. ͦ΋ͦ΋ͳΜͰ
 ଎౓վળ͕ඞཁ͔ʁ
9. ஗͍ͱԿ͕ى͜Δʁ
10. ஗͍ͱى͜Δ͜ͱɿΞϓϦମݧฤ • ਓੜແବײ͋ͬͯΞϓϦ࢖Θͳ͘ͳΔ
11. ஗͍ͱى͜Δ͜ͱɿΞϓϦମݧฤ • ਓੜແବײ͋ͬͯΞϓϦ࢖Θͳ͘ͳΔ • ࡶΞϓϦײ͋ͬͯ։ൃνʔϜͷαϙʔτ͕ෆ҆
12. • ਓੜແବײ͋ͬͯΞϓϦ࢖Θͳ͘ͳΔ • ࡶΞϓϦײ͋ͬͯ։ൃνʔϜͷαϙʔτ͕ෆ҆ • ৘ใ͕ܽམͯ͠Πϥͭ͘ ஗͍ͱى͜Δ͜ͱɿΞϓϦମݧฤ
13. • ਓੜແବײ͋ͬͯΞϓϦ࢖Θͳ͘ͳΔ • ࡶΞϓϦײ͋ͬͯ։ൃνʔϜͷαϙʔτ͕ෆ҆ • ৘ใ͕ܽམͯ͠Πϥͭ͘ • ଴ͬͯΔؒʹbackground -> ଞͷΞϓϦʹભҠ͠ ͯ໭Δͷ๨ΕΔ ஗͍ͱى͜Δ͜ͱɿΞϓϦମݧฤ
14. • ਓੜແବײ͋ͬͯΞϓϦ࢖Θͳ͘ͳΔ • ࡶΞϓϦײ͋ͬͯ։ൃνʔϜͷαϙʔτ͕ෆ҆ • ৘ใ͕ܽམͯ͠Πϥͭ͘ • ଴ͬͯΔؒʹbackground -> ଞͷΞϓϦʹભҠ͠ ͯ໭Δͷ๨ΕΔ • ڝ߹ΞϓϦͱѱ͍఺Λൺ΂ΒΕΔධՁϦεΫ ஗͍ͱى͜Δ͜ͱɿΞϓϦମݧฤ
15. • ਓੜແବײ͋ͬͯΞϓϦ࢖Θͳ͘ͳΔ • ࡶΞϓϦײ͋ͬͯ։ൃνʔϜͷαϙʔτ͕ෆ҆ • ৘ใ͕ܽམͯ͠Πϥͭ͘ • ଴ͬͯΔؒʹbackground -> ଞͷΞϓϦʹભҠ͠ ͯ໭Δͷ๨ΕΔ • ڝ߹ΞϓϦͱѱ͍఺Λൺ΂ΒΕΔධՁϦεΫ • αʔϏεͷࢮ ஗͍ͱى͜Δ͜ͱɿΞϓϦମݧฤ
16. • ແҙࣝʹ࿘අ͞ΕΔ࣌ؒ ஗͍ͱى͜Δ͜ͱɿ։ൃฤ
17. • ແҙࣝʹ࿘අ͞ΕΔ࣌ؒ • ΢Οϯυ΢Ҡͬͯɺ΍͕ͯूத్͕੾ΕΔ ஗͍ͱى͜Δ͜ͱɿ։ൃฤ
18. • ແҙࣝʹ࿘අ͞ΕΔ࣌ؒ • ΢Οϯυ΢Ҡͬͯɺ΍͕ͯूத్͕੾ΕΔ • ໭͖ͬͯͯ࡞ۀΛࢥ͍ग़͢ͷʹίϯςΩετεΠο νͷίετ͕͔͔Δ ஗͍ͱى͜Δ͜ͱɿ։ൃฤ
19. • ແҙࣝʹ࿘අ͞ΕΔ࣌ؒ • ΢Οϯυ΢Ҡͬͯɺ΍͕ͯूத్͕੾ΕΔ • ໭͖ͬͯͯ࡞ۀΛࢥ͍ग़͢ͷʹίϯςΩετεΠο νͷίετ͕͔͔Δ • ݕূʹऔΕΔ͕࣌ؒݮΔ ஗͍ͱى͜Δ͜ͱɿ։ൃฤ
20. • ແҙࣝʹ࿘අ͞ΕΔ࣌ؒ • ΢Οϯυ΢Ҡͬͯɺ΍͕ͯूத్͕੾ΕΔ • ໭͖ͬͯͯ࡞ۀΛࢥ͍ग़͢ͷʹίϯςΩετεΠο νͷίετ͕͔͔Δ • ݕূʹऔΕΔ͕࣌ؒݮΔ • ϦϦʔε͕஗ΕΔ ஗͍ͱى͜Δ͜ͱɿ։ൃฤ
21. • ແҙࣝʹ࿘අ͞ΕΔ࣌ؒ • ΢Οϯυ΢Ҡͬͯɺ΍͕ͯूத్͕੾ΕΔ • ໭͖ͬͯͯ࡞ۀΛࢥ͍ग़͢ͷʹίϯςΩετεΠο νͷίετ͕͔͔Δ • ݕূʹऔΕΔ͕࣌ؒݮΔ • ϦϦʔε͕஗ΕΔ • Πέͯͳ͍։ൃνʔϜʹͳͬͯਓ΋ݺ΂ͳ͍ ஗͍ͱى͜Δ͜ͱɿ։ൃฤ
22. • ແҙࣝʹ࿘අ͞ΕΔ࣌ؒ • ΢Οϯυ΢Ҡͬͯɺ΍͕ͯूத్͕੾ΕΔ • ໭͖ͬͯͯ࡞ۀΛࢥ͍ग़͢ͷʹίϯςΩετεΠο νͷίετ͕͔͔Δ • ݕূʹऔΕΔ͕࣌ؒݮΔ • ϦϦʔε͕஗ΕΔ • Πέͯͳ͍։ൃνʔϜʹͳͬͯਓ΋ݺ΂ͳ͍ • αʔϏεͷࢮ ஗͍ͱى͜Δ͜ͱɿ։ൃฤ
23. • ͱʹ͔͘ࢮ͵ ஗͍ͱى͜Δ͜ͱɿ·ͱΊ
24. ୭ͷͨΊʹ଎͘͢Δ͔
25. 1. Ϣʔβʔ
26. 2. νʔϜ
27. ϢʔβʔͷͨΊͷ଎౓վળ • ىಈվળͷ࿩͠·͢
28. https://developer.apple.com/videos/play/ wwdc2016/406/
29. https://developer.apple.com/videos/play/ wwdc2017/413/
30. ϢʔβʔͷͨΊͷ଎౓վળ • ىಈ͕஗͘ͳΔݪҼ • ىಈΛܭଌ͢Δํ๏ • վળํ๏
31. ىಈ͕஗͘ͳΔݪҼ • Too many dylibs
32. ىಈ͕஗͘ͳΔݪҼ • Too many dylibs • Too many class/method declarations
33. • Too many dylibs • Too many class/method declarations • Too many initializers ىಈ͕஗͘ͳΔݪҼ
34. • Too many dylibs • Too many class/method declarations • Too many initializers • SDK ىಈ͕஗͘ͳΔݪҼ
35. • Too many dylibs • Too many class/method declarations • Too many initializers • SDK • API Call ىಈ͕஗͘ͳΔݪҼ
36. • Too many dylibs • Too many class/method declarations • Too many initializers • SDK • API Call • Middleware ىಈ͕஗͘ͳΔݪҼ
37. • ࣌ؒͷ͔͔Δॲཧ͸daemonͰ Dyld3
38. • ࣌ؒͷ͔͔Δॲཧ͸daemonͰ • ෳࡶͳॲཧ(Mach-O parse/compile)
 ͸શ෦ͦͬͪʹدͤΔ Dyld3
39. • ࣌ؒͷ͔͔Δॲཧ͸daemonͰ • ෳࡶͳॲཧ(Mach-O parse/compile)
 ͸શ෦ͦͬͪʹدͤΔ • launch closure caching Dyld3
40. ىಈܭଌ • Instruments • Time Profiler
41. ىಈܭଌ • Instruments • Time Profiler • Static Initializer Calls
 (iOS11 / Mac OS High Sierra)
42. ىಈܭଌ • Instruments • Time Profiler • Static Initializer Calls
 (iOS11 / Mac OS High Sierra) • DYLD_PRINT_STATISTICS
43. DYLD_PRINT_STATISTICS Total pre-main time: 2.5 seconds (100.0%) dylib loading time: 1.3 seconds (54.0%) rebase/binding time: 111.49 milliseconds (4.3%) ObjC setup time: 432.17 milliseconds (16.9%) initializer time: 631.54 milliseconds (24.7%) slowest intializers : libSystem.B.dylib : 22.83 milliseconds (0.8%) xxx-ios : 500.72 milliseconds (19.5%)
44. վળํ๏ • Fewer dylibs • ࢖༻ස౓ͷ௿͍UIϥΠϒϥϦͳͲΛͻͨ͢ Βআڈ
45. վળํ๏ • Fewer initializers • initͰඞཁͳ͍ॲཧ͸ۃྗআ֎
46. վળํ๏ • Fewer initializers • initͰඞཁͳ͍ॲཧ͸ۃྗআ֎ • Debug༻ͷϥΠϒϥϦͷinitͳͲΛຊ൪Ͱআ֎
47. վળํ๏ • Fewer initializers • initͰඞཁͳ͍ॲཧ͸ۃྗআ֎ • Debug༻ͷϥΠϒϥϦͷinitͳͲΛຊ൪Ͱআ֎ • RxSwiftͰແҙࣝʹ΍ͬͯͨॏෳAPI Callͷআڈ
48. վળํ๏ • Fewer initializers • initͰඞཁͳ͍ॲཧ͸ۃྗআ֎ • Debug༻ͷϥΠϒϥϦͷinitͳͲΛຊ൪Ͱআ֎ • RxSwiftͰແҙࣝʹ΍ͬͯͨॏෳAPI Callͷআڈ • SDKͷฒྻsetup
49. վળํ๏ • Fewer classes/methods • structͰએݴͰ͖Δ΋ͷ͸ۃྗஔ͖׵͑
50. վળํ๏ • Fewer classes/methods • structͰએݴͰ͖Δ΋ͷ͸ۃྗஔ͖׵͑ • ࢖ͬͯͳ͍Ϋϥεɺ࢖༻ස౓ͷ௿͍Ϋϥεͷআ ڈ
51. Ҏ্ɺϢʔβʔͷͨΊʹ
 ىಈΛ଎͘͢Δ࿩ɻ
52. νʔϜͷͨΊͷ଎౓վળ • Ϗϧυ࣌ؒͷ࿩Λ͠·͢ɻ
53. νʔϜͷͨΊͷ଎౓վળ • Ϗϧυ͕஗͘ͳΔݪҼ • Ϗϧυ࣌ؒΛܭଌ͢Δํ๏ • վળํ๏
54. Ϗϧυ͕஗͘ͳΔݪҼ • ཁ͢ΔʹίϯύΠϥ΍ϥΠϒϥϦͷϚούʔ ʹ࢓ࣄͤ͗͢͞
55. Ϗϧυ࣌ؒΛܭଌ͢Δํ๏ • -Xfrontend -debug-time-function-bodies
56. Ϗϧυ࣌ؒΛܭଌ͢Δํ๏ • -Xfrontend -debug-time-function-bodies • ؔ਺͝ͱͷϏϧυ࣌ؒܭଌ(Swift)
57. Ϗϧυ࣌ؒΛܭଌ͢Δํ๏ • giginet/xcprofiler
58. Ϗϧυ࣌ؒΛܭଌ͢Δํ๏ • giginet/xcprofiler
59. Ϗϧυ࣌ؒΛܭଌ͢Δํ๏ • giginet/xcprofiler • Ruby੡gemύοέʔδ
60. Ϗϧυ࣌ؒΛܭଌ͢Δํ๏ • giginet/xcprofiler • Ruby੡gemύοέʔδ • ϝιου୯ҐͰܭଌ࣌ؒ(ms)Λιʔτͯ͠ ςʔϒϧग़ྗ
61. Ϗϧυ࣌ؒΛܭଌ͢Δํ๏ • giginet/xcprofiler • Ruby੡gemύοέʔδ • ϝιου୯ҐͰܭଌ࣌ؒ(ms)Λιʔτͯ͠ ςʔϒϧग़ྗ • giginet/danger-xcprofilerͱซ༻ͯ͠΋͍͍ ͔΋
62. վળํ๏ • ͱΓ͋͑ͣ50~60msͷϥΠϯΛ௒͑ͨΒɺ
 ؾ͍ͮͨλΠϛϯάͰؔ਺ຖϏϧυ࣌ؒΛ
 ݮΒ͢
63. վળํ๏ • ܕਪ࿦ආ͚Δ
 ʢClosure໭Γ஋, Variableએݴ౳ʣ
64. վળํ๏ • ܕਪ࿦ආ͚Δ
 ʢClosure໭Γ஋, Variableએݴ౳ʣ • ϝιουνΣΠϯආ͚ΔʢҰ࣌ม਺ʹ֨ೲʣ
65. վળํ๏ • ܕਪ࿦ආ͚Δ
 ʢClosure໭Γ஋, Variableએݴ౳ʣ • ϝιουνΣΠϯආ͚ΔʢҰ࣌ม਺ʹ֨ೲʣ • ഑ྻ݁߹(don’t +, append)
66. վળํ๏ • ܕਪ࿦ආ͚Δ
 ʢClosure໭Γ஋, Variableએݴ౳ʣ • ϝιουνΣΠϯආ͚ΔʢҰ࣌ม਺ʹ֨ೲʣ • ഑ྻ݁߹(don’t +, append) • `??` ΍ࡾ߲ԋࢉࢠ࢖Θͳ͍
67. վળํ๏ • ܕਪ࿦ආ͚Δ
 ʢClosure໭Γ஋, Variableએݴ౳ʣ • ϝιουνΣΠϯආ͚ΔʢҰ࣌ม਺ʹ֨ೲʣ • ഑ྻ݁߹(don’t +, append) • `??` ΍ࡾ߲ԋࢉࢠ࢖Θͳ͍ • lazy propertiesͷϓϥΠϕʔτϝιουԽ
68. վળํ๏ • ܕਪ࿦ආ͚Δ
 ʢClosure໭Γ஋, Variableએݴ౳ʣ • ϝιουνΣΠϯආ͚ΔʢҰ࣌ม਺ʹ֨ೲʣ • ഑ྻ݁߹(don’t +, append) • `??` ΍ࡾ߲ԋࢉࢠ࢖Θͳ͍ • lazy propertiesͷϓϥΠϕʔτϝιουԽ • ObjectMapperۃྗ࢖Θͳ͍
69. վળํ๏ • ܕਪ࿦ආ͚Δ
 ʢClosure໭Γ஋, Variableએݴ౳ʣ • ϝιουνΣΠϯආ͚ΔʢҰ࣌ม਺ʹ֨ೲʣ • ഑ྻ݁߹(don’t +, append) • `??` ΍ࡾ߲ԋࢉࢠ࢖Θͳ͍ • lazy propertiesͷϓϥΠϕʔτϝιουԽ • ObjectMapperۃྗ࢖Θͳ͍ • CocoaPodsΛv1.3.0Ҏ্ʹΞοϓάϨʔυ͢Δ
70. վળํ๏ • ܕਪ࿦ආ͚Δ
 ʢClosure໭Γ஋, Variableએݴ౳ʣ • ϝιουνΣΠϯආ͚ΔʢҰ࣌ม਺ʹ֨ೲʣ • ഑ྻ݁߹(don’t +, append) • `??` ΍ࡾ߲ԋࢉࢠ࢖Θͳ͍ • lazy propertiesͷϓϥΠϕʔτϝιουԽ • ObjectMapperۃྗ࢖Θͳ͍ • CocoaPodsΛv1.3.0Ҏ্ʹΞοϓάϨʔυ͢Δ
71. CocoaPods >= v1.3.0
72. CocoaPods >= v1.3.0 • Dynamic FrameworkͷpathΩϟογϡͷόά͕
 मਖ਼͞ΕͨͬΆ͍ʁ
73. CocoaPods >= v1.3.0 • Dynamic FrameworkͷpathΩϟογϡͷόά͕
 मਖ਼͞ΕͨͬΆ͍ʁ • ΍͹͍͘Β͍଎͘ͳΔɻ
 LUCRA͸ॳظϏϧυ͡Όͳ͚Ε͹2ඵ͘Β͍ʹͳͬͨɻ
74. Ҏ্ɺνʔϜͷͨΊʹ
 ϏϧυΛ଎͘͢Δ࿩ɻ
75. • αʔϏεͷࢮʹͭͳ͕ΔͷͰ଎౓վળ͔ͬ͠Γɻ • ϢʔβʔͷͨΊͷվળ • XCodeඋ͑෇͚ͷػೳͰىಈ࣌ؒܭଌɻ • ίϯύΠϥɾϦϯΧʹ༏͍͠ίʔυɾߏ੒Λɻ • νʔϜͷͨΊͷվળ • पลπʔϧ࢖͍ͭͭϏϧυ࣌ؒܭଌɻ • γϯλοΫεɺpodsͳͲ஍ಓʹվળɻ ·ͱΊ
76. Thank you!