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「jsconf.eu 報告会 Performance Empathy 編」 @ノード学園34時限目
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June 27, 2019
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「jsconf.eu 報告会 Performance Empathy 編」 @ノード学園34時限目
tomonari_t
June 27, 2019
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Transcript
JSConfEU XࢀՃใࠂ 2019.06.27 ∁ڮ Performance Empathyฤ NodeֶԂ34࣌ݶ
w "JSγϑτͱ͍͏ϓϩμΫτͰಇ͍͍ͯ·͢ w ݸਓతʹؔ৺ͷ͋Δٕज़ w ࠓճ͕ॳͷւ֎ςοΫΧϯϑΝϨϯεࢀՃͰͨ͠ ∁ڮ (GitHub: tomonari-t)
+4$POGͷτʔΫ༰ w +4ͷ৽ύοέʔδϚωʔδϟʔ w 8FC"TTFNCMZ w 4UFODJMKT ٕज़த৺ͷτʔΫ͚ͩͰͳ͘ ৭ʑͳλΠϓͷτʔΫ͕͋ͬͨΧϯϑΝϨϯ εͰͨ͠ɻ
w ଟ໘ମ w #BCZ%SJWFO%FWFMPQNFOU w 4IBQFPG8FC ͨ͘͞Μհ͍ͨ͠ͷ͋Δ͚Ͳɾɾɾ
ʮళ͞ΜͷஅҎ֎ͷ࣌ؒΛ̌ʹʯ "JSγϑτ
ύϑΥʔϚϯεͷݱঢ় ͳͥύϑΥʔϚϯεେࣄͳͷ͔ ྫ͑ .# ίϯςϯπ͕දࣔ͞ΕΔ·Ͱ ඵ͔͔Δ͜ͱ ৴པײΛଛͳ͏
Ϣʔβʔମݧʹ݁͢Δ $43
ύϑΥʔϚϯεͷݱঢ় ͳͥύϑΥʔϚϯεେࣄͳͷ͔ ྫ͑ .# ίϯςϯπ͕දࣔ͞ΕΔ·Ͱ ඵ͔͔Δ͜ͱ ݟΔલʹ ৴པײΛଛͳ͏
͍ʹ͍͘ Ҏ্ͷαΠτ͕.#Ҏ্ͷ+4Λಧ͚͍ͯΔ CJUMZCZUFTKTRVFSZ PSJHJOT ࣌Ͱͷ3FBDU "OHVMBS 7VFΛ͍ͬͯΔͷϞόΠϧαΠτͷͯ͢ͷεΫϦϓτ GSPN)551"SDIJWF
ύϑΥʔϚϯε̍൪ͷ༏ઌ ࣄ߲ͱͳ͍ͬͯͳ͍ ྫ͑̎ͭͷγφϦΦ ͋ΔΞΠσΟΞΛࢥ͍ͭ͘ ࣮ݱํ๏ʹ͍ͭͯ͠ΒΔ ࡞Γ࢝ΊΔ
৽νʔϜʹࢀՃ νʔϜͷίʔυΛಡΈղ͘ ύονλεΫΛ࣮͢Δ
ύϑΥʔϚϯε̍൪ͷ༏ઌ ࣄ߲ͱͳ͍ͬͯͳ͍ ྫ͑̎ͭͷγφϦΦ ৽νʔϜʹࢀՃ νʔϜͷίʔυΛಡΈղ͘ ύονλεΫΛ࣮͢Δ ࠷খͷ࿑ྗͰ͘͢࡞Δ͔͕
༏ઌࣄ߲
ύϑΥʔϚϯε̍൪ͷ༏ઌ ࣄ߲ͱͳ͍ͬͯͳ͍ ྫ͑̎ͭͷγφϦΦ ࠷খͷ࿑ྗͰ͘͢࡞Δ͔͕ ༏ઌࣄ߲ ࠷ॳͷίϛοτ͕ͲΕ΄Ͳ ύϑΥʔϚϯεʹͯΔ͔ ߟ͑ͳ͍
ύϑΥʔϚϯε̍൪ͷ༏ઌ ࣄ߲ͱͳ͍ͬͯͳ͍ ࠷খͷ࿑ྗͰ͘͢࡞Δ͔ ࠷ॳͷύον͕ͲΕ΄Ͳ ύϑΥʔϚϯεʹͯΔ͔ ߟ͑ΒΕͯΔʁ ྫ͑̎ͭͷγφϦΦ ϓϩμΫτ͕͍ͯ͘͠தͰ ։ൃελʔτ YճͷϦϦʔε
ύϑΥʔϚϯεޙճ͠ ʹؾͮ͘ͷ͕ࣄޙ
ݱঢ়Λվળ͢ΔͨΊʹ w σϑΥϧτͳͷΛ͏ʢ%FGBVMUʣ w ύϑΥʔϚϯεόδΣοτΛӡ༻͢Δʢ(VBSE3BJMTʣ w ύϑΥʔϚϯεφϨοδΛ֫ಘ͢Δ
σϑΥϧτʢσϑΝΫτʣ πʔϧΛ͏
σϑΥϧτͷ"1* ϒϥβ͕σϑΥϧτͰͬͯ͘ΕΔʢΑ͏ʹʣͳΔ͜ͱ -B[ZMPBEJOH ը૾ɺJGSBNFΛඞཁʹͳͬͨͱ͖ʹಡΈࠐΉ ԆಡΈࠐΈ දࣔྖҬ
σϑΥϧτͷ"1* ϒϥβ͕σϑΥϧτͰͬͯ͘ΕΔʢΑ͏ʹʣͳΔ͜ͱ WJSUVBMTDSPMMFS ඞཁͳ෦͚ͩϨϯμϦϯά
ύϑΥʔϚϯεόδΣοτΛ ӡ༻͢Δ Α͋͘Δͷ͕ վળͯ͠͠Β͘͢Δͱ ػೳՃʹΑΓ؇͔ʹѱԽ
ύϑΥʔϚϯεόδΣοτΛ ӡ༻͢Δ ύϑΥʔϚϯεόδΣοτ ύϑΥʔϚϯεʹؔ࿈ͨ͠ج४Λઃఆ͠ zΒͳ͍͏ͪʹѱԽzΛ͝͏ʢΨʔυʣ
ύϑΥʔϚϯε όδΣοτ • ύϑΥʔϚϯε͕डೖՄೳ͔Λஅ͢Δج४ IUUQTNFEJVNDPN!BEEZPTNBOJNFBTVSFPQUJNJ[FNPOJUPSFF • Ұఆͷൣғɺᮢʹ͓͞·͍ͬͯΔʢNJMFTUPOFʣ • ڝ߹ɾաڈൺֱͰѱԽʹͳ͍͔ʢSVMFTʣ •
ύϑΥʔϚϯεείΞʢSVMFTʣ • ϖʔδͷαΠζʢ2VBOUJUZʣ IUUQTBEEZPTNBOJDPNCMPHQFSGPSNBODFCVEHFUT !T@BSBJ͞Μ͔Β͓आΓ͠·ͨ͠
ύϑΥʔϚϯε όδΣοτʢࢀߟ̍ʣ ͷ͜Γʢ,#ʣ ػೳ#ͷՃʹඞཁʢ,#ʣ ػೳ"Ͱར༻͍ͯ͠Δʢ,#ʣ ༧ࢉશମʢ,#ʣ શମ ,#ͷ༧ࢉ
ػೳ"ͷͨΊʹ ,#ར༻ ػೳ#࣮ݱͷͨΊ ,#ඞཁ ,#Λࢧग़ͯ͠Ϣʔβʔମݧʹม͑Δ ༧ࢉͷΓ ,#͔Β ,# ͬͯػೳ#Λ࣮ ༧ࢉͷΓ ,# !T@BSBJ͞Μ͔Β͓आΓ͠·ͨ͠
ύϑΥʔϚϯε όδΣοτʢࢀߟ̎ʣ ͷ͜Γʢ,#ʣ ػೳ#Ͱར༻தʢ,#ʣ ػೳ"Ͱར༻தʢ,#ʣ ༧ࢉશମʢ,#ʣ શମ ,#ͷ༧ࢉ
ػೳ$ ͷՃʹ ,#ඞཁ ༧ࢉͷΓ,#ͳͷͰ ,# ෆ͍ͯ͠Δ • ػೳ"ΛΊͯ༧ࢉΛ֬อ͢Δ • ·ͨ࠷దԽͯ͠ར༻αΠζΛݮΒ ͯ͠,#֬อ͢Δ • ·ͨ ,#ෛ࠴ͱ࣮ͯ͠ • ·ͨ ԆಡΈࠐΈ͢Δ !T@BSBJ͞Μ͔Β͓आΓ͠·ͨ͠
https://web.dev/performance-budgets-101 ෳͷࢦඪΛઃఆ͢Δ
ྫ͑ ύϑΥʔϚϯεόδΣοτΛ,#ͱઃఆ ػೳ"ͷͨΊʹ,# ػೳ#ͷͨΊʹ,# ৽ػೳՃͰ,#ඞཁ ༧ࢉ,#ա
" ύϑΥʔϚϯεվળΛͯ͠,#೧ग़ # ػೳ#ΛΊͯ৽ػೳΛ͍ΕΔ $ ෛ࠴ͱͯ͠৽ػೳΛ͍ΕΔ ػೳ",# ػೳ#,# ,# -JHIUIPVTF
φϨοδΛ֫ಘ͢Δ Ϟμϯͳ8FCΛߏங͢ΔͨΊ ͷυΩϡϝϯτ͕·ͱ·͍ͬͯ Δ 3FBDUͰ͍"QQΛߏங͢ Δํ๏ ΞΫηαϏϦςΟ
ύϑΥʔϚϯεόδΣοτ ͷಋೖํ๏
φϨοδΛ֫ಘ͢Δ IUUQTHJUIVCDPN(PPHMF$ISPNFMJHIUIPVTFTUBDLQBDLT 4UBDL1BDL -JHIUIPVTF͕ɺͲΜͳٕज़ ελοΫͰ࡞ΒΕ͍ͯΔ͔Λ ݕͦ͠Εʹదͨ͠۩ମతͳ ղܾํ๏Λఏࣔͯ͘͠ΕΔ 8PSE1SFTT͕ 3FBDU ".1͕
·ͱΊ w σϑΥϧτͳͷΛ͏ w ΨΠυͱͳΔࢦඪʢόδΣοτʣΛܾΊͯӡ༻͢Δ w ۩ମతͳ)PXzXFCEFWzͳͲΛ͍ͯΈΑ͏ w ύϑΥʔϚϯεʹରͯ͠ͷʮใൃ৴ΛڧΊ͍ͯͧ͘ʂʯ ͱͷ͜ͱͩͬͨͷͰzXFCEFWzͳͲΛ͜Ε͔Βࢹͯ͠
͍͘ͱใ͕ॆ࣮͍͖ͯͦ͠͏
ࢀՃͨ͠ײ w +4$POG&6ྑ͔ͬͨʂʢདྷ͓ٳΈͳͷ͕೦ʣ w μΠόʔγςΟʔͷҙ͕ࣝͱͯߴ͔ͬͨ w ొஃऀࢀՃऀͱͷڑ͕͔ۙͬͨ
JSConfEU XࢀՃใࠂ 2019.06.27 ∁ڮ Performance Empathyฤ ͋Γ͕ͱ͏͍͟͝·ͨ͠ʂ JSConfEU XࢀՃใࠂ
Performance Empathyฤ NodeֶԂ34࣌ݶ