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CEDEC2018プレゼン 大津担当分の発表スライド

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1. 8FCϓϩτίϧ࠷લઢ େ௡
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12. HTTPసૹαΠζͱϦΫΤετ਺ͷભҠ
 (2012/6/1ʙ2018/6/1) 6೥Ͱதԝ஋͕ సૹαΠζ: 2.36ഒ(desktop), 5.37ഒ(mobile) ϦΫΤετ਺ɿ1.21ഒ(desktop), 2.17ഒ(modile) ʢ୯ҰWebαΠτͷ౷ܭฏۉʣ IUUQTIUUQBSDIJWFPSHSFQPSUTTUBUFPGUIFXFC TUBSU@@FOE@@
13. ճઢଳҬΛ૿଎͍ͯ͘͠ͱ HTTPܦ༝ͷμ΢ϯϩʔυ ࣌ؒ[ms] 0 800 1600 2400 3200 ճઢଳҬ[MBps] 0 3 5 8 10 More Bandwidth does’nt matter ΑΓσʔλҾ༻http://docs.google.com/a/chromium.org/viewer? a=v&pid=sites&srcid=Y2hyb21pdW0ub3JnfGRldnxneDoxMzcyOWI1N2I4YzI3NzE2 ϖʔδͷදࣔ࣌ؒ͸ɺ͜ ΕҎ্୹ॖͰ͖ͳ͍ɻ Make the Web Faster: Google ͷࢼݧ
14. RTT(Round Trip Time)Λখ͍ͯ͘͘͞͠ͱ HTTPܦ༝ͷμ΢ϯϩʔυ࣌ؒ [ms] 0 1000 2000 3000 4000 RTT[ms] 0 50 100 150 200 250 300 ͪΌΜͱԼ͕Δ More Bandwidth does’nt matter ΑΓσʔλҾ༻http://docs.google.com/a/chromium.org/viewer? a=v&pid=sites&srcid=Y2hyb21pdW0ub3JnfGRldnxneDoxMzcyOWI1N2I4YzI3NzE2 Webϖʔδͷදࣔ଎౓Λ଎͘͢Δʹ͸ɺճઢ଎౓૿ڧΑΓ RTTʢͷӨڹʣΛখ͘͢͞Δ͔͕ॏཁɻͰ΋෺ཧతͳ੍ݶ Ͱ೉͍͠ɻ Make the Web Faster: Google ͷࢼݧ
15. HTTP/1.1 ͷ໰୊఺ HTTP Head of Line Blocking ΫϥΠΞϯτ αʔό HTTP/1.1 1ຊͷTCP઀ଓ HTTP ϦΫΤετ HTTPϨεϙϯε ଴ͪ࣌ؒ HTTP ϦΫΤετ
16. )551͸)551
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    #MPDLJOHΛղফ ΫϥΠΞϯτ αʔό HTTP/2 1ຊͷTCP઀ଓ HTTP ϦΫΤετ HTTPϨεϙϯε Ծ૝తʹଟॏԽ ଴͕ͪଞͷ ϦΫΤετ ʹҾ͖ͣΒ Εͳ͍
17. HTTP/1.1
 ϒϥ΢β͸࠷େಉ࣌4ʙ6TCP઀ଓʹ੍ݶ ࠷େಉ࣌ฒྻ6
18. HTTP/2
 100Ҏ্ͷಉ࣌ϦΫΤετ͕Մೳ શ෦ಉ࣌
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29. 5-4ͷݶք w ݱࡏͷ5-4Ͱఆٛ͞Ε͍ͯΔػೳͷ Ұ෦͸ɺطʹར༻͢ΔͱةݥͰ͋Δɻ
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30. 5-4ͷಛ௃ 
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