The Cacher in the Rye

Transcript

1. Tsukasa Oishi tsukasaoishi 5IF
   $BDIFS
   JO
   UIF
   3ZF
2. ͓͓͍͔ͭ͠͞
7. GSBHNFOU
   DBDIF
8. ߋ৽ස౓ͷ௿͍ίϯςϯπ
9. -40 -20 0 20 40 4݄ 5݄ 6݄ 7݄ 8 
10. -40 -20 0 20 40 4݄ 5݄ 6݄ 7݄ 8 Eviction
11. 256B 307B
12. 256B 307B
13. 256B 307B
14. 256B 307B
15. 256B 307B
16. 256B 307B
17. 256B 307B
18. 256B 307B
19. 256B 307B
20. 256B 307B
21. 256B 307B
22. 256B 307B
23. NFNDBDIFE
    ࠶ىಈ
24. 3BJMT͸σϑΥϧτͰΩϟογϡۭ͕ؒͻͱͭ
25. ڧ͍΍͕ͭಠΓ઎Ί
26. CJU[FS@TUPSF
    HFN STU@PCKFDUT VTFS@GPPUFS TIBSFE STU@GPPUFS FYUFSOBM
27. CJU[FS@TUPSF
    HFN Rails.cache.fetch(key, sheep: :rst_footer) STU@PCKFDUT VTFS@GPPUFS EFGBVMU STU@GPPUFS FYUFSOBM
28. PCKFDU
    DBDIF
29. 3FTUBVSBOUpOE@CZ@DBDIF JE
30. 3BJMTDBDIFGFUDI ʜ
    EP
    
    
    3FTUBVSBOUQSFMPBE
    
    
    
    
    SFTUBVSBOU@TDPSF
    
    
    
    
    QSFGFDUVSF
    
    
    
    
    DBUFHPSZ@BT
    
    
    pOE JE
    FOE
31. ৯΂ϩάͷ͋ͪΒͪ͜ΒͰ
    ࢖ΘΕΔΑ͏ʹͳͬͨ
32. Benchmark.driver do |x| x.report "AR", %|Restaurant.preload( :restaurant_score, :prefecture, :category_as ).find(1)| x.report "cache", %|Rails.cache.read(“1")| x.report "mono", %|Restaurant.find(1)| x.compare! end
33. mono: 1887.1 i/s cache: 729.3 i/s - 2.59x slower AR: 57.5 i/s - 32.84x slower
34. 3FTUBVSBOUΦϒδΣΫτ͕ཉ͍͚ͩ͠ͳΒ
    ;ͭ͏ʹ3FTUBVSBOUpOEͨ͠΄͏͕
    ଎͔ͬͨʜ
35. Ωϟογϡʹ΋
    ίετ͕͔͔Δ
36. طଘͷίʔυ͸໭ͯ͠·ͤΜ
37. mono: 1887.1 i/s cache: 729.3 i/s - 2.59x slower AR: 57.5 i/s - 32.84x slower 2.59ഒ΋ ஗͍! େมͩ!
38. ਺NTͷ࿩ͩ͠ɺͦ͜͸ϘτϧωοΫͰ͸ͳ͍
39. DBDIF
    DMFBS
40. 3FTUBVSBOU
    
    DSFBUFVQEBUFEFMFUF 3FTUBVSBOU
    PCKFDU
    DBDIF 3FTUBVSBOU
    GSBHNFOU
    DBDIF
41. SFTUBVSBOUTςʔϒ ϧʹ
    ΧϥϜ௥ՃͰྫ֎ൃੜ
42. 3FTUBVSBOU
    
    DSFBUFVQEBUFEFMFUF 3FTUBVSBOU
    PCKFDU
    DBDIF 3FTUBVSBOU
    GSBHNFOU
    DBDIF 3FTUBVSBOU
    
    BMUFS
    UBCMF
43. ϚΠΫϩαʔϏε
44. 3FTUBVSBOU
    
    DSFBUFVQEBUFEFMFUF 3FTUBVSBOU
    PCKFDU
    DBDIF 3FTUBVSBOU
    GSBHNFOU
    DBDIF 3FTUBVSBOU
    
    BMUFS
    UBCMF 3FTUBVSBOU
    
    DSFBUFVQEBUFEFMFUF 3FTUBVSBOU
    GSBHNFOU
    DBDIF
45. Ͳ͏ӡ༻͢Δʹͯ͠΋ίετ͸૿େ͢Δ
46. ԯਓͷਓͨͪΛ͚ͩ͢͜͠޾ͤʹ͢Δ XF
    BSF
    IJSJOH
47. Ωϟογϡ͍ΕΕ͹
    ͪΐͬͺ΍Ͱ͢Α
48. ӡ༻Λߟ্͑ͨͰ
    ෺Λݴ͓ͬͯΔͷ͔
49. ໨తͱظ଴͢ΔޮՌ ϨεϙϯελΠϜΛ୹͍ͨ͘͠
    αʔόϦιʔεΛิ͍͍ͨ
50. ӡ༻ͱίετ ΩϟογϡσʔλͷҰੜ
    ͢΂ͯͷΩϟογϡ͕ফ͑ͨͱ͖
    ΩϟογϡΛҙ࣮ࣝͨ͠૷
    ؂ࢹͱอक
51. ϦεΫ ΩϟογϡΛ΍ΊΒΕͳ͍
    ద੾Ͱͳ͍Ωϟογϡ͕࢖ΘΕͨ
    Ωϟογϡ͕ফ͑ͳ͍
    ώοτ཰௿͗ͯ͢ίετ͚͕͔͔ͩΔ
52. ΩϟογϡΛ࢖͍͍ͨͱࢥͬͨͱ͖ͷߟ͑ํ
53. ࢖Θͳ͍
54. ϨεϙϯελΠϜΛ୹͍ͨ͘͠
    αʔόϦιʔεΛิ͍͍ͨ
55. ͪΌΜͱߟ͑ͯઃܭͱ࣮૷Λ͢Ε͹
    ໨తΛୡ੒Ͱ͖Δ
56. Ͱ΋ɺ
    ͜ΕΛ΍Ζ͏ͱͨ͠Β
    Ͳ͏΍ͬͨͬͯ
    Ωϟογϡൈ͖͡ΌແཧͩΖ
57. اըͷஈ֊Ͱʮ͜Εةͳ͘ͶʁʯΛײ͡औΔ
58. ຊ౰ʹ΍Γ͍ͨ͜ͱΛཧղͯ͠
    ઐ໳Ոͱͯ͠
    ͖ͪΜͱͨ͠୅ସҊΛग़͢
59. Ωϟογϡʹର͢Δߟ͑ํ
60. ෛ࠴
61. ෛ࠴
    
    ѱ
    Ͱ͸ͳ͍
62. ͍͟ͱ͍͏ͱ͖͸
    ֮ޛΛ΋ͬͯ
    ෛ࠴Λഎෛ͏
63. ৯΂ϩάͰͷΩϟογϡ े෼ͳϦιʔε͕͋ΔͷͰجຊతʹΩϟογϡ͸ෆཁ
    ಥൃతͳΞΫηε૿ʹରԠ͢ΔͨΊʹ
    ௒୹࣌ؒ55-ͷΞΫγϣϯΩϟογϡΛ
    ࢖͍ͬͯΔ͜ͱ͸͋Δ
    աڈʹ࡞ͬͯͣͬͱӡ༻͞Ε͚͍ͭͮͯΔ
    มͳΩϟογϡ͕͍͔ͭ͋͘ΔͷͰ
    ͳ͍͖͍ͯͨ͘͠
64. ͓͠·͍