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Node8.3.0について
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Yuta Hiroto
August 04, 2017
Programming
1
3.2k
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
Yuta Hiroto
August 04, 2017
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Transcript
Node8.3.0ʹ͍ͭͯ Yuta Hiroto(@about_hiroppy) ඈͼࠐΈLT(5min)
Me Twitter: about_hiroppy GitHub: abouthiroppy ኍށ ༟େ
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 ~))
v8.3.0 proposalͷେ͖ͳมߋ • V8ͷv6.0ΞοϓάϨʔυ • ͜ΕʹΑΓɺύϑΥʔϚϯεϓϩϑΝΠϧ ͕େ෯ʹมߋ͞ΕΔ • WHATWG Encoding
Standard (TextDecoderͱTextEncoder)͕࣮͞Εͨ https://github.com/nodejs/node/pull/14594
v8.3.0 proposalͷେ͖ͳมߋ • V8ͷv6.0ΞοϓάϨʔυ • ͜ΕʹΑΓɺύϑΥʔϚϯεϓϩϑΝΠϧ ͕େ෯ʹมߋ͞ΕΔ • WHATWG Encoding
Standard (TextDecoderͱTextEncoder)͕࣮͞Εͨ https://github.com/nodejs/node/pull/14594
TurboFan + Ignition ͕σϑΥϧτͱͳΔʂ
NodeͱV8 • V8ͷv5.9͔ΒσϑΥϧτͱͳΔ TurboFanͱIgnitionͱ͍͏ͷ͕͋Γ·͢ • NodeͰॳΊͯσϑΥϧτʹͳΔͷ͕ ࠓճͷมߋͱͳΓ·͢ • v5.9NodeͷϦϦʔεϥΠϯʹೖ͓ͬͯΒͣɺ v6.0͔ΒೖΔ͔ΒͰ͢
TurboFan + Ignition • TurboFan • JIT CompilerͰCrankshaft͔Βஔ͖ΘΔͷͰ͢ • ES2015Ͱͷ࠷దԽࠔͳ෦try-catchͷ࠷దԽͳͲ͕ՄೳͱͳΓ·͢
• chrome 41͔Βஈ֊తʹ༻͞Εͯ·ͨ͠ • Ignition • Register machine • ϞόΠϧͷϝϞϦফඅݮΛඪͱͯ͠࡞ΒΕͨΠϯλϓϦλ • JSͷίʔυΛbytecodeʹ͠·͢
V8ͷ࣮ߦϑϩʔ https://docs.google.com/presentation/d/1OqjVqRhtwlKeKfvMdX6HaCIu9wpZsrzqpIVIwQSuiXQ/edit#slide=id.g1357e6d1a4_0_58
ϕϯνϚʔΫ
Node Core • Internal Modules(V8 v5.9) • buffers events http
() querystring streams string_decoder url util v5.9ͰओʹࠨͷϞδϡʔϧͷ ϕϯνϚʔΫ͕v5.8 ΑΓԼ͕ͬͯ͠·ͬͨ ͔͠͠ɺv6.0/6.1ͰTurboFan ͷଟ͘ͷ͕վળ͞ΕͨͷͰ ࠓޙͬͱྑ͘ͳΔ
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
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)
ϕϯνϚʔΫʹؔͯ͠ • جຊతʹվળ͞Ε͍ͯΔ(v8.2.1͔Βv8.3.0) • NodeͷInternal modulesͰ 100%Ҏ্ͷվળ͋ΕɺѱԽ͋Δ
·ͱΊ • 8݄தʹ8.3.0͕ϦϦʔε͞Ε·͢ • NodeͷV8͕v6.0ΞοϓάϨʔυ͞ΕΔ 5.8 → 6.0 • WHATWG
Encoding Standard͕ೖΔ • ࠓޙɺNode, Chromeߋʹ͘ͳΔ
͜ͷLTͷهࣄ Node8.3.0ͰσϑΥϧτʹͳΔTF/IʹؔΘΔ ϕϯνϚʔΫʹ͍ͭͯ http://abouthiroppy.hatenablog.jp/entry/2017/08/03/095304
౦ژNodeֶԂࡇ2017 CFPͷక͕8݄ͷ15ͳͷͰ ൃද͍ͨ͠ํͥͻԠื͍ͯͩ͘͠͞ʂʂʂ
Thanks!