Node8.3.0について

buildersconの飛び込みLT資料。

以下の記事のスライド版です。
http://abouthiroppy.hatenablog.jp/entry/2017/08/03/095304

Transcript

1. Node8.3.0ʹ͍ͭͯ
   Yuta Hiroto(@about_hiroppy)
   ඈͼࠐΈLT(5min)
   
   

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2. Me
   Twitter: about_hiroppy

   GitHub: abouthiroppy
   ኍށ ༟େ
   
   

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3. ݱࡏͷNodeͷঢ়گ
   • current(master) - v9.0.0-pre
   • latest - v8.2.1
   • Current Proposal - v8.3.0
   • LTS(Long Term Support)
   • Boron - v4.8.4 (status: Maintenance)
   • Argon - v6.11.2 (status: Active)
   • Carbon - v8.x (status: Pending(2017/10 ~))
   
   

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4. v8.3.0 proposalͷେ͖ͳมߋ
   • V8ͷv6.0΁ΞοϓάϨʔυ
   • ͜ΕʹΑΓɺύϑΥʔϚϯεϓϩϑΝΠϧ

   ͕େ෯ʹมߋ͞ΕΔ
   • WHATWG Encoding Standard 

   (TextDecoderͱTextEncoder)͕࣮૷͞Εͨ
   https://github.com/nodejs/node/pull/14594
   
   

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5. v8.3.0 proposalͷେ͖ͳมߋ
   • V8ͷv6.0΁ΞοϓάϨʔυ
   • ͜ΕʹΑΓɺύϑΥʔϚϯεϓϩϑΝΠϧ

   ͕େ෯ʹมߋ͞ΕΔ
   • WHATWG Encoding Standard 

   (TextDecoderͱTextEncoder)͕࣮૷͞Εͨ
   https://github.com/nodejs/node/pull/14594
   
   

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6. TurboFan + Ignition

   ͕σϑΥϧτͱͳΔʂ
   
   

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7. NodeͱV8
   • V8ͷv5.9͔ΒσϑΥϧτͱͳΔ

   TurboFanͱIgnitionͱ͍͏ͷ͕͋Γ·͢
   • NodeͰॳΊͯσϑΥϧτʹͳΔͷ͕

   ࠓճͷมߋͱͳΓ·͢
   • v5.9͸NodeͷϦϦʔεϥΠϯʹೖ͓ͬͯΒͣɺ

   v6.0͔ΒೖΔ͔ΒͰ͢
   
   

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8. TurboFan + Ignition
   • TurboFan
   • JIT CompilerͰCrankshaft͔Βஔ͖׵ΘΔ΋ͷͰ͢
   • ES2015Ͱͷ࠷దԽࠔ೉ͳ෦෼΍try-catchͷ࠷దԽͳͲ͕ՄೳͱͳΓ·͢
   • chrome 41͔Βஈ֊తʹ࢖༻͞Εͯ·ͨ͠
   • Ignition
   • Register machine
   • ϞόΠϧ୺຤ͷϝϞϦফඅ࡟ݮΛ໨ඪͱͯ͠࡞ΒΕͨΠϯλϓϦλ
   • JSͷίʔυΛbytecodeʹ͠·͢
   
   

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9. V8ͷ࣮ߦϑϩʔ
   
   https://docs.google.com/presentation/d/1OqjVqRhtwlKeKfvMdX6HaCIu9wpZsrzqpIVIwQSuiXQ/edit#slide=id.g1357e6d1a4_0_58
   

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10. ϕϯνϚʔΫ
    
    

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11. Node Core
    • Internal Modules(V8 v5.9)
    • buffers

    events

    http ()

    querystring

    streams

    string_decoder

    url

    util
    
    v5.9Ͱ͸ओʹࠨͷϞδϡʔϧͷ

    ϕϯνϚʔΫ͕v5.8

    ΑΓԼ͕ͬͯ͠·ͬͨ
    

    ͔͠͠ɺv6.0/6.1ͰTurboFan

    ͷଟ͘ͷ໰୊఺͕վળ͞ΕͨͷͰ

    ࠓޙ͸΋ͬͱྑ͘ͳΔ
    

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12. node benchmark.js 390.80s cpu 8:16.27 total
    webpack
    
    v8.2.1

    (V8 v5.8)
    v8.3.0

    (V8 v6.0)
    node benchmark.js 385.03s cpu 7:47.66 total
    

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13. Loading:
    Load Performance median: 147.627503ms
    Single File:
    CPU Speed is 3100 with multiplier 13000000
    Performance budget exceeded: 5423.646407ms (limit: 4193.548387096775ms)
    Multi Files (0 files):
    CPU Speed is 3100 with multiplier 39000000
    Performance budget exceeded: 13073.789987ms (limit: 12580.645161290322ms)
    ESLint
    
    Loading:
    Load Performance median: 141.143209ms
    Single File:
    CPU Speed is 3100 with multiplier 13000000
    Performance budget exceeded: 5300.968599ms (limit: 4193.548387096775ms)
    Multi Files (0 files):
    CPU Speed is 3100 with multiplier 39000000
    Performance budget exceeded:13120.178363ms (limit: 12580.645161290322ms)
    v8.2.1

    (V8 v5.8)
    v8.3.0

    (V8 v6.0)
    

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14. ϕϯνϚʔΫʹؔͯ͠
    • جຊతʹվળ͞Ε͍ͯΔ(v8.2.1͔Βv8.3.0)
    • NodeͷInternal modulesͰ͸

    100%Ҏ্ͷվળ΋͋Ε͹ɺѱԽ΋͋Δ
    
    

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15. ·ͱΊ
    • 8݄தʹ8.3.0͕ϦϦʔε͞Ε·͢
    • NodeͷV8͕v6.0΁ΞοϓάϨʔυ͞ΕΔ

    5.8 → 6.0
    • WHATWG Encoding Standard͕ೖΔ
    • ࠓޙɺNode, Chrome͸ߋʹ଎͘ͳΔ
    
    

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16. ͜ͷLTͷهࣄ
    
    Node8.3.0ͰσϑΥϧτʹͳΔTF/IʹؔΘΔ

    ϕϯνϚʔΫʹ͍ͭͯ
    http://abouthiroppy.hatenablog.jp/entry/2017/08/03/095304
    

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17. ౦ژNodeֶԂࡇ2017
    
    CFPͷక੾͕8݄ͷ15೔ͳͷͰ
    ൃද͍ͨ͠ํ͸ͥͻԠื͍ͯͩ͘͠͞ʂʂʂ
    

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18. Thanks!
    
    

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