Build Time Analyzer

ビルド時間の改善

1. Ϗϧυ࣌ؒͷվળ 2018/02/23
2. ͸͡Ίʹ • 2೥ఔલʹSwiftͷϏϧυ࣌ؒͷ஗͕͞࿩୊ʹ • ରࡦํ๏΋͍͔ͭ͘঺հ͞Ε͍ͯͨΓ΋ͨ͠ • ࣗ෼΋஗͍ͱײ͡Δ͜ͱ͸͋Γࢼͯ͠Έ͍ͨ ͱࢥ͍͕ͬͯͨɺ࣮ࡍʹࢼͨ͜͠ͱ͸ͳ͔ͬ ͨ
3. ͸͡Ίʹ • ๭ϓϩδΣΫτͷίʔυΛݟͨ࣌ʹ͜Ε͸Ϡ όͦ͏ͱࢥͬͨ • ࣮ࡍɺ൒୺ͳ͘஗͔ͬͨ • ͕࣌ؒͰ͖ͨͷͰࢼͯ͠Έͨ
4. Ϗϧυ࣌ؒͷܭଌ
5. શମͷϏϧυ࣌ؒ • defaultsίϚϯυͰXcode্ʹϏϧυ࣌ؒΛද ࣔͰ͖ΔΑ͏ʹઃఆ͢Δ
6. શମͷϏϧυ࣌ؒ • DerivedData࡟আ • ΫϦʔϯʢ㵰+⇧+Kʣ • Ϗϧυʢ㵰+Bʣ
7. શମͷϏϧυ࣌ؒ • DerivedData࡟আ • ΫϦʔϯʢ㵰+⇧+Kʣ • Ϗϧυʢ㵰+Bʣ
9. ܭଌ༻ͷϏϧυઃఆΦϓγϣϯ -Xfrontend Swift compiler flags
10. [Build Settings] -> [OTHER_SWIFT_FLAGS] ʹઃఆ
11. -debug-time-function-bodies • -Xfrontend -debug-time-function-bodies • ϝιουผͷίϯύΠϧ࣌ؒΛଌఆ
12. -warn-long-function-bodies • -Xfrontend -warn-long-function-bodies=100 • ίϯύΠϧʹ100msҎ্͔͔͍ͬͯΔίʔυΛܯࠂ • Swift3.0Ҏ߱Ͱ༗ޮʁ • কདྷతʹ࡟আ͞ΕΔՄೳੑ • https://github.com/apple/swift/commit/ 18c75928639acf0ccf0e1fb6729eea75bc09cbd5
13. -warn-long-expression-type- checking • -Xfrontend -warn-long-expression-type- checking=50 • ܕਪ࿦ʹ50msҎ্͔͔͍ͬͯΔίʔυΛܯࠂ • Xcode9 GM͔Β
16. ๭ϓϩδΣΫτ • Swift2.2 & Xcode7.1.1 • -warn-long-function-bodies -warn-long-expression-type-checking ͕࢖͑ͳ͍
17. Ҏ߱ Swift2.2+Xcode7.1.1 ͰͷௐࠪͰ͢
18. ϝιουຖͷܭଌ
19. ܭଌπʔϧ • xcodebuild http://irace.me/swift-profiling • Build Time Analyzer for Xcode https://github.com/RobertGummesson/BuildTimeAnalyzer-for-Xcode • xcprofiler
20. ܭଌπʔϧ • xcodebuild http://irace.me/swift-profiling • Build Time Analyzer for Xcode https://github.com/RobertGummesson/BuildTimeAnalyzer-for-Xcode • xcprofiler
21. • gem install xcprofiler • Build Settings -> Other Swift Flagsʹ -Xfrontend -debug-time-function-bodies Λઃఆ • Ϗϧυ • xcprofiler [PRODUCT_NAME or ACTIVITY_LOG_PATH] [options] xcprofiler
22. xcprofiler
24. ίʔυϕʔεͰͷվળ
25. ίʔυϕʔεͰͷվળ 1.ܕਪ࿦ ʢλΠϓώϯςΟϯάɺClosureɺGenericsʢϝιουνΣΠϯʣʣ 2.݁߹ʢ഑ྻɺจࣈྻʣ 3.Closures and lazy properties 4.Ternary Conditional Operatorʢࡾ߲ԋࢉࢠʣ 5.Nil-Coalescing Operatorʢ??ʣ
26. ίʔυϕʔεͰͷվળ 1.ܕਪ࿦ ʢλΠϓώϯςΟϯάɺClosureɺGenericsʢϝιουνΣΠϯʣʣ 2.݁߹ʢ഑ྻɺจࣈྻʣ 3.Closures and lazy properties 4.Ternary Conditional Operatorʢࡾ߲ԋࢉࢠʣ 5.Nil-Coalescing Operatorʢ??ʣ
27. ܕਪ࿦ λΠϓώϯςΟϯά
29. ഑ྻͷλΠϓώϯςΟϯάΛ
    ෇͚Δ
30. Ϗϧυ࣌ؒ NT CFGPSF  BGUFS  ʢ
    ‑
    ʣ
31. ܕਪ࿦ Closure
33. $MPTVSFʹܕΛ໌ࣔ
34. Ϗϧυ࣌ؒ NT CFGPSF  BGUFS  ʢ
    ‑
    ʣ
35. ܕਪ࿦ GenericsʢϝιουνΣΠϯʣ
37. ϥΠϒϥϦ3VOFTʹΑΔ
    ΦϖϨʔλʔͷར༻Λ΍ΊΔ ϝιουνΣΠϯΛ΍ΊΔ
38. Ϗϧυ࣌ؒ NT CFGPSF  BGUFS  ʢ
    ‑
    ʣ
39. ഑ྻͷ݁߹
40. Before
41. ԋࢉࢠΛBQQFOEϝιουʹมߋ
42. Ϗϧυ࣌ؒ NT CFGPSF  BGUFS  ʢ
    ‑
    ʣ
43. จࣈྻͷ݁߹
44. Before
45. ԋࢉࢠΛ΍Ίͯ
    ΠϯϥΠϯల։ʹมߋ
46. Ϗϧυ࣌ؒ NT CFGPSF  BGUFS  ʢ
    ‑
    ʣ
47. ԋࢉࢠΛKPJOϝιουʹมߋ
48. Ϗϧυ࣌ؒ NT CFGPSF  BGUFS  ʢ
    ‑
    ʣ
49. ίʔυϕʔεҎ֎Ͱͷվળ https://github.com/fastred/Optimizing-Swift- Build-Times
51. ·ͱΊ
52. • ͪΐͬͱͨ͠มߋͰ͔ͳΓͷ͕࣌ؒ୹ॖ • ਺ඵʗ໿630ඵͷ୹ॖͳͷͰɺຊ౰ʹվળ͞Εͨͷ͔࣮ ײ͕ͳ͍ʢମײతʹ͸Ϗϧυ࣌ؒ͸໿15෼͙Β͍ʣ • Not Swifty • Swiftݴޠ࢓༷Λ׆͔ͨ͠هड़͕Ͱ͖ͳ͍ • ίʔυྔͷ૿Ճ • ίʔυͷՄಡੑ͕͕͋Δ৔߹΋ • ܕΛ໌ࣔ͢Δ͜ͱͰ೺Ѳ͠΍͘͢ͳΔ
53. • Swift2.2+Xcode7.1.1ͷ؀ڥͰͷௐࠪͳͷͰɺ ࠓͷ࠷৽ͷSwift4+Xcode9ͷ؀ڥͰ͸վળ͞ Ε͍ͯΔ΋ͷ΋͋Δ͸ͣ
54. Swiftyͳίʔυ΋ॻ͖ͭͭɺ ۠੾Γͷ͍͍ͱ͜ΖͰܭଌ͠ ͯΈͯɺۃ୺ʹϏϧυʹ࣌ؒ ͕͔͔͍ͬͯΔ৔߹͸ίʔυ Λݟ௚ͯ͠ΈΔ
55. Appendix • https://developers.cyberagent.co.jp/blog/archives/7815/ • https://medium.com/@fkei/xcodeͷϏϧυ࣌ؒΛ୹ॖ͢Δ ํ๏·ͱΊ-2017-10-20࣌఺-bea6dc4f9fc0 • https://qiita.com/ruwatana/items/21b25781a2f44ccf29e2 • https://qiita.com/you_matz/items/ e95f30023eccc8d96357 • https://qiita.com/rizumita/items/913b05d799b3712260f6