jsconf.eu x Node Collaborators Meetup journey

Transcript

1. Node Collaborators Meetup & JSConf.EU 2017/06/28 NodeֶԂ 26

2. None
3. None
4. None

5. ໘ന͔ͬͨ࿩ 3ͭ঺հ

6. 1. How to save

7. 2017೥ݱࡏɺύεϫʔυΛͲ ͏΍ͬͯ҆શʹอଘ͢Δ͔

8. ύεϫʔυͲ͏΍ͬͯอଘ͠ ͯ·͔͢ʁ ฏจͰอଘͯ͠ΔΑʔͬͯ ਓʁʁʁ

9. ύεϫʔυͲ͏΍ͬͯอଘ͠ ͯ·͔͢ʁ ฏจͰอଘͯ͠ΔΑʔͬͯ ਓʁʁʁ ࢮܐ

10. ύεϫʔυͲ͏΍ͬͯอଘ͠ ͯ·͔͢ʁ ͪΌʔΜͱϋογϡԽͯ͠· ͢Αʔʂ md5 Ͱʂʂʂʂ

11. ύεϫʔυͲ͏΍ͬͯอଘ͠ ͯ·͔͢ʁ ͪΌʔΜͱϋογϡԽͯ͠· ͢Αʔʂ md5 Ͱʂʂʂʂ ࢮܐ

12. Ͱ΋ਖ਼௚ʹݴͬͯʁ ͜Ε΍ͬͪΌͬͨ͜ͱ͋Δਓ ͍ͳ͍ʁʁʁ

13. ๻Ͱ͢Ͷʂʂʂʂʂ (ϗϏʔϓϩδΣΫτ)

14. ͜ΕΒͷϋογϡؔ਺͸
 ύεϫʔυϋογϡͱͯ͠
 ;͞Θ͘͠ͳ͍
 md5/sha1/sha256

15. ύεϫʔυอଘ͢Δ࣌ͷ ϋογϡؔ਺͸ ҉߸తϋογϡؔ਺ͱ ݺ͹ΕΔ΋ͷ
 bcrypt/pbkdf2/scrypt

16. CDSZQU
    JT
    TUJMM
    TFDVSF
    JO
    
    CVU
    BSHPO
    XPO
    JO
    1BTTXPSE
    )BTI
    $POUFTU
    

17. ҉߸తϋογϡؔ਺͸ฒྻ࣮ ߦՄೳͳճ࿏ͰҰؾʹԋࢉ͞ ΕΔͱղಡͰ͖ͪΌ͏͔΋ʁ
 (Ex: GPU, FPGA)

18. ͦ͜Ͱ Argon2 Password Hash Competition Ͱ༏উͨ͠ϋογϡؔ਺ɺ ݱࡏ࠷ڧ?ͷ͸ͣɻ

19. Α͘Θ͔Βͳ͔ͬͨͬͯਓʁ

20. ҆৺ͯ͠Լ͍͞ʂʂʂ

21. OQN
    J
    TFDVSFQBTTXPSE ͜Ε͚֮ͩ͑ͯΕ͹͍͍Ͱ͢ʂ

22. None

23. JavaScript͕Ͳ͏΍ͬͯಈ͍ ͍ͯΔ͔ͱ͍͏࿩

24. ͦ΋ͦ΋JavaScriptͬͯͲ͏ಈ ͍ͯΔͷʁ த਎͸C++Ͱbytecodeੜ੒ͯͨ͠Γ͢Δ

25. JIT (Hidden Class) 0QUJNJ[BUJPO
    ͱݺͿ

26. ͨͩ͠ var obj = { x: 1, y: 2, };

    // obj ͷ y propΛফ͢ delete obj.y; // obj ʹ z propΛ଍͢ obj.z = 3; // obj ͷ props Λ֬ೝ͢Δ obj.hasOwnProperties ͜͏͍͏͜ͱ΍Δͱ஗͍

27. ͨͩ͠ var obj = { x: 1, y: 2, };

    // obj ͷ y propΛফ͢ delete obj.y; // obj ʹ z propΛ଍͢ obj.z = 3; // obj ͷ props Λ֬ೝ͢Δ obj.hasOwnProperties ͜͏͍͏͜ͱ΍Δͱ஗͍ ͜ΕΛ
    %FPQUJNJ[BUJPO
    ͱݺͿ

28. JSͷத਎ͷಈ͖ɹ

29. V8͸͜͏

30. V8͸͜͏

31. DEMO function deopt(obj) { return obj.x; } for (var i

    = 0; i < 1000000; i++) { deopt({ x: 1, y: 2}); } // deoptimized… deopt({ x: 1, y: 2, z: 3});

32. ͋ͱ։ൃऀ޲͚ʹ͸͜ͷΦϓγϣ ϯΛ཈͓͑ͯ͘ͱΠφϑ

33. OK͜ΕͰɺJSͷίʔυ͸Α Γߴ଎ʹͳΔ͸ͣɻ

34. Ͱ΋ɾɾɾ

35. ࠓޙ໰୊ʹͳͬͯ͘Δॴ

36. Parseॲཧ

37. Parseॲཧ

38. Parseॲཧ • Parseॲཧͷ໨త͸Ͱ͖Δ͚ͩૣ͘จ๏Τϥʔ Λ఻͑ͯASTʹม׵͢Δ͜ͱ

39. Parseॲཧ • v8ͷParser͸࣮͸2ͭ͋Δ • Eager Parser: • ίϯύΠϧ͍ͨ͠શͯͷؔ਺Λύʔε͢ΔͨΊʹ࢖ΘΕΔ • AST

    ߏங͕ϝΠϯλεΫ • JSͷscopeΛߏங͠ɺESSpecʹԊͬͨશͯͷsyntaxΤϥʔΛݟ͚ͭΔ • Lazy Parser: • ίϯύΠϧͨ͘͠ͳ͍ؔ਺ͷύʔεΛεΩοϓ͢ΔͨΊʹ࢖ΘΕΔ • AST͸ߏங͠ͳ͍ • ൑அՄೳͳsyntaxΤϥʔͷΈݟ͚ͭΔɺESspecʹ͸ඞͣ͠΋ԊΘͳ͍

40. Parseॲཧ • ʮॳظஈ֊Ͱ͸ Lazy Parser ʹ࢓ࣄͤͯ͞ޙ൒ʹ Eager Parser ʹ࢓ࣄͤ͞Δʯͱ͍͏উෛ •

    Lazy Parse ͢Δͷ͔ Eager Parse ͢Δͷ͔͸ V8 ͷؾ ෼࣍ୈͰܾ·Δ΋ͷ͕ଟ͍(Heuristic) • ຊ౰ʹStartup࣌ʹඞཁͳ΋ͷ͚ͩEager Parseͤ͞ ͯɺଞ͸Lazy Parse ͍ͤͨ͞

41. Optimize.js • https://github.com/nolanlawson/optimize-js • optimize.js ͸͜ͷ Eager Parse Λແཧ໼ཧ Lazy

    Parseʹ͢ΔͨΊͷtranspiled optimizer

42. Optimize.js ͜Μͳײ͡Ͱແཧ໼ཧ-B[Z
    1BSTFͤ͞ΔͨΊͷ
    ώϯτΛ༩͑Δ

43. Α͘Θ͔Βͳ͔ͬͨͬͯਓʁ

44. ҆৺ͯ͠Լ͍͞ʂʂʂ

45. ͜Ε͚֮ͩ͑ͯԼ͍͞ʂ Chrome/Node͸ࠓޙ΋ͬͱ ଎͘ͳΔʂ Optimize.js ࢖͏ͱ΋ͬͱ ΋ͬͱ଎͘ͳΔ(͔΋)ʂ

46. Node Collaborators Summit

47. None

48. Node.js ͷίϥϘϨʔλ͕Ұ ಉʹհͯ͠coreͷ࡞ۀΛߦͬ ͨΓɺٞ࿦͢Δ৔ॴ

49. http2, promise, stream, etc

50. ͜Μͳײ͡ͷ੒ՌɺͪͳΈʹ
    IUUQ
    /PEF
    શવಈ͔ͳ͍ͷͰɺ
    ͪΌΜͱಈ͔ͤΔ΋ͷʹ͍͖ͯ͠·͢ ʆŋТŋ ʎ

51. ·ͱΊ • jsconf.eu࠷ߴͰͨ͠ • ΈΜͳReactͱ͔Angularͱ͔ͦ͏͍͏࿩͸ͯ͠ͳ͍ • Ͳ͔ͬͪͱ͍͏ͱJSͱ͍͏ΩʔϫʔυͷԞʹ͋Δ௿ϨΠϠʔͳ ෦෼ͩͬͨΓɺ΢Σϒ͚ͩͰ͸ͳ͍ผͷ໰୊Λղܾ͍ͯͨ͠Γ • Node

    Collaborators Meetup΋࠷ߴͰͨ͠ • Node.js http2 ΍͍ͬͯͧ͘ʂʂʂʂʂ

52. ࣍͸Node InteractiveͰ ൃද͢Δ༧ఆͰ͢ɻ

53. ͋Γ͕ͱ͏͍͟͝·ͨ͠