Fast Code for Ruby

沖縄Ruby会議02 #okrk02
http://ruby.okinawa/okrk02/

Transcript

1. Fast Code for Ruby @284km
2. ͸͍͍͞ʂ
3. ࠓ೔࿩͢͜ͱ Ruby Ͱ଎͍ίʔυΛॻ͘ benchmark_driver ͕͘͢͝ྑ͍ Ruby ͷָ͠ΈํΛͻͱͭ
4. ଎͍ίʔυΛॻ͘
5. ଎͍ίʔυΛॻ͘ ଌఆ ϕϯνϚʔΧʔ
6. ϕϯνϚʔΧʔ benchmark.rb (ඪ४ఴ෇ϥΠϒϥϦ) evanphx/benchmark-ips k0kubun/benchmark_driver
7. ଎͍ίʔυ ಉ݁͡Ռ͕ಘΒΕΔෳ਺ͷॻ͖ํ ܭଌͯ͠ɺ଎͍΄͏͕଎͍ લఏ: ࠓճͷϕϯνϚʔΫ͸๻ͷ MBP Ͱ࣮ߦͨ͠΋ͷͰ͢
8. benchmark_driver e.g. ෳ਺ͷॲཧܥ ग़ྗܗࣜ (.md Մ)
9. Hash#keys.each Hash#each_key
10. Hash#keys.each Hash#each_key
11. ଎͍ίʔυ ৚݅ʹґଘ͢Δ৔߹͕͋Δ ඞͣͦͷॻ͖ํ͕ྑ͍ͱ͸ݴ͑ͳ͍ έʔε͕͋Δ (e.g. gsub / tr)
12. gsub tr
13. gsub tr
14. gsub tr
15. gsub tr
16. gsub tr
17. gsub tr
18. ଎͍ίʔυ Ͳ͏͍͏࣌ʹ༗ޮ͔Λ஌ΔͱΑ͞ ͦ͏ ࣮૷Λ೷͘ͱ෼͔Δ͜ͱ͕͋Δ
19. Bang method ഁյత / ඇഁյత ͳϝιουͷྫ ͜ͷ࣮૷͸ݟ΍͍͢ͱࢥ͍·͢
20. Hash#merge Hash#merge! ͜͜Ͱ͸αϯϓϧίʔυ͸ͦ Ε΄ͲॏཁͰ͸ͳ͘ɺ
21. Hash#merge Hash#merge! ͜͜Ͱ͸αϯϓϧίʔυ͸ͦ Ε΄ͲॏཁͰ͸ͳ͘ɺ ଎౓ࠩͷཧ༝Λ௥ͬͯΈΔ
22. Hash#merge Hash#merge! dup ͨ͠΋ͷΛ౉ͯ݁͠ ՌΛฦ͍ͯ͠ΔͷͰͦͷ෼ ஗͍
23. ଎͞ ͱɺಡΈ΍͢͞
24. each_with_index while
25. each_with_index while
26. ಡΈ΍͢͞େࣄ ಡΈ΍͢͞ͱ͸…(ޙͰ࿩୊ʹ͠·͢ ͕ yield / Proc#call ΋ͦ͏Ͱ͢ΑͶ) ࢓ࣄͰॻ͘ίʔυͰ͸ɺνʔϜͷࣄ ৘ͳͲʹΑͬͯԿ͕ಡΈ΍͍͔͢͸ม ΘΓͦ͏Ͱ͸͋Δʢ๻ͷײ૝
27. Rubocop::Cop::Performance ύϑΥʔϚϯε͕վળ͞Εͦ͏ͳͱ ͜ΖΛࢦఠͯ͘͠ΕΔ ੩తղੳπʔϧʹཔΔ͜ͱ΋༗ޮ ͜ͷؒͻͱͭࢦఠ͞Ε·ͨ͠
28. String#match String#match?
29. String#match String#match?
30. String#match String#match?
31. String#match String#match? MatchData ΦϒδΣΫτ Λฦ͢ʢϚονͨ͠৔߹ʣ
32. String#match String#match? MatchData ΦϒδΣΫτ Λฦ͢ʢϚονͨ͠৔߹ʣ rb_reg_match_p() ͸ɺ Ϛονͨ͠Β true ͠ͳ͚ Ε͹ false Λฦ͢ɻ
33. Ruby 2.5 ࢖͍ͬͯ·͔͢ʁ όʔδϣϯΞοϓͱڞʹվળ͞ΕΔ ෦෼͸஌͓ͬͯ͘ͱศར
34. unpack1 unpack.first String#unpack1 ͸ 2.4 Ͱೖ ͬͨ
35. unpack1 unpack.first String#unpack1 ͸ 2.4 Ͱೖ ͬͨ
36. yield Proc#call 2.5 Ͱ Proc#call ͕଎͘ ͳͬͨ
37. yield Proc#call
38. yield Proc#call
39. ࠷৽ͷ Ruby ஌ͬͯΔͱ࢓ࣄָ͕ʹͳͬͨΓ͢Δ ஌Δͱɺ௥͏ͷָ͕͘͠ͳΔϧʔϓ JIT Λ༗ޮʹ͢Δͱɺ݁ՌͷมΘΔ ϕϯνϚʔΫ΋͋Γͦ͏ (2.6.0)
40. ·ͱΊ ʹ;͐ʔͰʔͼΔ benchmark_driver ͕͘͢͝ྑ͍ Fast Code ͱ͍͏ Ruby ͷָ͠Έํ Ruby ͷ࣮૷Λ೷͍ͯΈΔ ೖΓޱͱͯ͠ͷϕϯνϚʔΫ΋ྑ͍