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WebRTC における通信不具合の検証
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Kiminari Homma
June 13, 2017
Technology
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WebRTC における通信不具合の検証
WebRTC Meetup での登壇資料です。
https://atnd.org/events/88130
Kiminari Homma
June 13, 2017
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Transcript
8FC35$ʹ͓͚Δ௨৴ෆ۩߹ͷݕূ 2017/06/13 WebRTC Meetup Tokyo #15 !LJNJIPN
ࣗݾհ ຊؒ ߖ @kimihom CTO at selfree,llc CallConnect (ϒϥβిγεςϜ) Heroku,
Twilio UG ίΞϝϯόʔ
8FC35$ΛαʔϏεͱͯ͠ ఏڙ͍ͯ͠Δํʁ
8FC35$ΛαʔϏεͱͯ͠ ༗ঈఏڙ͍ͯ͠Δํʁ
௨ෆ۩߹ͷେϢʔβʔଆͷར༻ڥ͕ݪҼɻ ͔͠͠ɺ8FC35$αʔϏεఏڙऀ͕ ݪҼΛಛఆ͠αϙʔτ͢Δඞཁ͕͋Δɻ
ࣄͷ֬ೝ l௨͕Ͱ͖ͳ͍zͰҎԼͷΑ͏ͳύλʔϯ͕͋Δɻ ൃண৴͕ҰͰ͖ͳ͍ɻ͍͖ͳΓஅ͞ΕΔɻ ൃண৴Ͱ͖Δ͕ɺࣗ૬खͷ͕Ұฉ͑͜ͳ͍ ௨Ͱ͖Δ͕ɺԻ࣭͕ཚΕΔ
ࣄͷ֬ೝ l௨͕Ͱ͖ͳ͍zͰҎԼͷΑ͏ͳύλʔϯ͕͋Δɻ ൃண৴͕ҰͰ͖ͳ͍ɻ͍͖ͳΓஅ͞ΕΔɻ ൃண৴Ͱ͖Δ͕ɺࣗ૬खͷ͕Ұฉ͑͜ͳ͍ ௨Ͱ͖Δ͕ɺԻ࣭͕ཚΕΔ
ൃண৴͕ҰͰ͖ͳ͍ ୯७ʹαʔϏεͰͷઃఆϛε ਖ਼͘͠ͳ͍ઃఆͰண৴Λड͚ͨࡍʹɺࣾαϙʔτ4MBDL ରϢʔβʔͷ*%Λ௨ɻͪ͜Β͔Βઃఆํ๏ΛҊɻ ωοτϫʔΫ͕ด͡ΒΕ͍ͯΔ ଟ͘ͷେاۀͰ8FC35$Ͱඞཁͳϙʔτ͕ด͡ΒΕ͍ͯΔ ར༻ڥνΣοΫͷఏڙ
ࣄͷ֬ೝ l௨͕Ͱ͖ͳ͍zͰҎԼͷΑ͏ͳύλʔϯ͕͋Δɻ ൃண৴͕ҰͰ͖ͳ͍ɻ͍͖ͳΓஅ͞ΕΔɻ ൃண৴Ͱ͖Δ͕ɺࣗ૬खͷ͕Ұฉ͑͜ͳ͍ ௨Ͱ͖Δ͕ɺԻ࣭͕ཚΕΔ
ࣗ૬खͷ͕ฉ͑͜ͳ͍ ར༻ڥνΣοΫ0, Ұ෦ͷϙʔτ͕ด͡ΒΕ͍ͯΔ ϧʔλʔɺϑΝΠΞΥʔϧɺΟϧεରࡦιϑτͷઃఆ֬ೝ ผͷωοτϫʔΫʹҰࢼ͠ʹଓ͍ͯͯ֬͠ೝ ϔουηοτͷෆௐɺϒϥβͷϚΠΫڐՄ͍ͯ͠ͳ͍ ϔουηοτςετͷఏڙ
$BMM$POOFDUͰͷ ؒແྉτϥΠΞϧ ͜ͷظؒͰ௨Ͱ͖Δ͔֬ೝ͍ͯͨͩ͘͠ ਪϔουηοτͷఏڙ τϥΠΞϧظؒͰແྉͰϔουηοτΛఏڙɻ ɹΩϟϯϖʔϯͰϓϨθϯτ͢Δ͜ͱɻ
ࣄͷ֬ೝ l௨͕Ͱ͖ͳ͍zͰҎԼͷΑ͏ͳύλʔϯ͕͋Δɻ ൃண৴͕ҰͰ͖ͳ͍ɻ͍͖ͳΓஅ͞ΕΔɻ ൃண৴Ͱ͖Δ͕ɺࣗ૬खͷ͕Ұฉ͑͜ͳ͍ ௨Ͱ͖Δ͕ɺԻ࣭͕ཚΕΔ
௨࣭ͷཚΕͦ͜8FC35$࠷େͷఢ
ϔουηοτ ωοτϫʔΫ σόΠε 1$ εϚϗ શͯͷ݅Λຬͨ͞ͳ͍ͱɺ շదͳ௨࣮ݱͰ͖ͳ͍ɻ ؒͷଓॏཁͳͨΊɺ ϔουηοτͷൈ͖ࠩ͠ɺϧʔλʔ1$࠶ىಈ ͳͲ͕࠷ॳͷεςοϓɻ
ωοτϫʔΫར༻ͷෛՙΛԼ͛·͠ΐ͏ ίϫʔΩϯάεϖʔεେྔͷ੮͕͋Δ৬ͳͲɺ ಉ࣌ʹͨ͘͞Μͷ1$Λଓ͢ΔωοτϫʔΫڥ ௨தʹॏ͍ಈըΛμϯϩʔυɺॏ͍௨৴ͳͲ ͦͦωοτϫʔΫ͕͍ ʔʼ4QQFEUFTUͰͷωοτϫʔΫςετ
ͦͷଞͷରࡦ • ϧʔλʔͷ QoS Λ༗ޮʹ͢Δ͔௨৴τϥϑΟοΫʹ༏ઌΛ͚ͭΔ • ϔουηοτͷσόΠευϥΠόʔΛߋ৽͢Δ (Windows) • ଞͷऀϑΝϯͳͲͷपғͷϊΠζΛݮΒ͢
• ϚΠΫͱޱͷڑΛదͳͷʹௐ • PCͷαϯυઃఆͰϚΠΫͷԻྔΛௐ • ίϯϐϡʔλ͕௨৴Λॲཧ͢Δͷʹेͳॲཧೳྗ͕͋Δ͔ • ίϯϐϡʔλͷ CPU RAM Λ͍͍͗ͯ͢ͳ͍͔֬ೝ • ΟϧεରࡦͷιϑτΣΞΛແޮԽ͓ͯ͠ࢼ͠
ͦΕͰղܾͰ͖ͳ͍߹
5XJMJP7PJDF*OTJHIUT δολʔɺύέοτଛࣦɺϨΠςϯγɺ.04 ΛϢʔβʔ͝ͱʹࢦඪԽ
%VBM$IBOOFM3FDPSEJOHT ํͷ௨ΛԻ͢ΔΈ ෆ۩߹ͷݪҼ͕ൃ৴ݩͳͷ͔ɺൃ৴ઌͳͷ͔ΛಛఆͰ͖Δ 8FC35$௨৴தͷϦΞϧλΠϜΞϥʔτ ௨தʹ ҰఆظؒϚΠΫೖྗ͕֬ೝͰ͖ͳ͔ͬͨΒΞϥʔτɻ ωοτϫʔΫଓ͕ෆ҆ఆʹͳͬͨΒΞϥʔτɻ ͦͷଞ5XJMJP͕ఏڙ͢ΔԻ࣭ରࡦ
௨৴ෆ۩߹ͱ͍ͬͯݪҼઍࠩສผɻ 8FC35$ΛαʔϏεͱͯ͠ఏڙ͢Δ߹ɺ l௨৴ෆ۩߹ΛಛఆͰ͖ΔΑ͏ͳΈz ͕ඞཁෆՄܽ ͦΕͰ8FC35$ૉΒ͍͠ʂ
ిαϙʔτΛ؆୯ʹɻ
5IBOLT