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An Analysis of Facebook Photo Caching(SOSP'13) の紹介
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Ryo Okubo
August 06, 2014
Technology
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26k
An Analysis of Facebook Photo Caching(SOSP'13) の紹介
https://atnd.org/events/54159
で話した資料です。
Ryo Okubo
August 06, 2014
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Transcript
An Analysis of Facebook Photo Caching(SOSP’13) ! ୈҰճγεςϜܥจྠಡձ @ PFI
!TZV@DSFBN
ࣗݾհ w !TZV@DSFBN w ΣοϒܥاۀͷόοΫΤϯυ͞Μ w ࠷ۙͷ׆ಈ w )551 w
υΩϡϝϯτ༁
ຊจͷ༰Λతʹ w 'BDFCPPLͷࣸਅը૾৴ʹؔ͢Δௐࠪܥจ w ϒϥβΩϟογϡޮՌ͕ߴ͍ w ਓؾͷը૾্ͷΩϟογϡͰώοτ͢Δ w Ωϟογϡͷ࣋ͨͤํʹ࠶ߟͷՁΞϦ
'BDFCPPLʹ͓͚Δࣸਅ w 'BDFCPPLʹઍԯͷࣸਅΛ๊͑Δ w ϖʔδʹը૾Λදࣔ͢Δཁૉ͕ଟ͍ w χϡʔεϑΟʔυɺΞϧόϜɺΞΠίϯ w ଟஈͷΩϟογϡΛͬͯࣸਅ৴͍ͯ͠Δ w
ώοτͷੳվળҊΛݕ౼͢ΔՁେ
'BDFCPPLͷը૾৴ج൫ w ෳͷΩϟογϡϨΠϠ͔Βը૾Λ৴͢Δ w #SPXTFSDBDIF w &EHF$BDIFPS"LBNBJ$%/ w 0SJHJO$BDIF w
#BDLFOE
&EHF0SJHJO$BDIF w &EHF$BDIF w 1P1ʹஔ͞ΕΔ w ϝϞϦʹϝλσʔλΛ࣋ͪɺେ༰ྔͷϑϥογϡϝϞϦʹΩϟογϡΛஔ͘ w .D%JQQFSͱ͍͏ιϑτΣΞΛ͍ͬͯΔ w
'*'0ͰΩϟογϡΛഁغ͢Δ w 0SJHJO$BDIF w ֤σʔληϯλʔͰ࣋ͭ w Ωϟογϡཧํ๏&EHF$BDIFͱಉ༷
࣮ݧ w ԼهσʔλΛूܭ͢Δ w ֤Ωϟογϡͷώοτ w ͲͷΩϟογϡͰͲΕ͘Β͍ώοτ͍ͯ͠Δ͔ w ࣸਅͷਓؾώοτʹӨڹ͢Δ͔ w
ҬͰͷτϥϑΟοΫͷྲྀΕͷੳ w ཧతͳڑΛߟྀͯ͠τϥϑΟοΫྲྀ͍ͤͯΔ͔
࣮ݧํ๏ w 4DSJCFͰϩάΛऩूɾूܭ w IUUQTHJUIVCDPNGBDFCPPLBSDIJWFTDSJCF w ΫϥΠΞϯτͷ&EHF$BDIFͷΞΫηε w "LBNBJͷΞΫηεআ֎͢Δ "LBNBJͷΞΫηεੳ͕Ͱ͖ͳ͍ͨΊ
w &EHF$BDIF͔Β0SJHJO$BDIFͷΞΫηε w 0SJHJO$BDIF͔Β#BDLFOEͷΞΫηε w Ұϲ݄ؒαϯϓϦϯάΛߦͬͨ w ͦͷؒΞΫηε͞ΕͨϢχʔΫࣸਅ.ݸ w .Ϣʔβ͔Β.ճϦΫΤετ͕͛ΒΕͨ
Ωϟογϡώοτͷੳ w B ΩϟογϡϨΠϠຖͷҰिؒͷΩϟογϡώοτ w ϒϥβΩϟογϡͷώοτ͕ߴ͍ɻ͍࣍Ͱ&EHF$BDIF w ༵ʹΑΔมԽͦΕ΄Ͳͳ͍ w C
D ࣸਅͷਓؾຖͷϦΫΤετͱώοτ " ਓؾ d( ෆਓؾ w ਓؾͳࣸਅ&EHF$BDIFͷώοτ͕ߴ͍ w ෆਓؾͳը૾͙͢ΩϟογϡʹࣺͯΒΕΔͨΊώοτ͍
&EHF$BDIFͷΞΫηεੳ w ࢢ͔ΒͲͷ&EHFʹΞΫηε͔ͨ͠ͷ w ظ௨Γɺ֓Ͷཧతʹ͍ۙ&EHFʹߦ͍ͬͯΔ w ͔͠͠࠷͍ۙ&EHFʹߦ͚͍ͯΔΘ͚Ͱͳ͍ w "UMBOUB͔Β"UMBOUBΑΓ%$ʹΑ͘ߦͬͯΔ
ώοτͷվળํ๏ w &EHF0SJHJO$BDIFຖͷվળҊ w ΩϟογϡαΠζͷ֦େ w ΩϟογϡΞϧΰϦζϜͷมߋ
&EHF$BDIFͷվળҊͷ γϛϡϨʔγϣϯ݁Ռ w ΩϟογϡαΠζͷ֦େ w ഒɺഒʹ͢Δ͜ͱͰएׯώοτ্͕͢Δ w ΩϟογϡΞϧΰϦζϜͷมߋ w 4-36ʹ͢Δ͜ͱͰώοτ্͕ΊΔ
w 4-36֊ͷΩϡʔΛͬͯ-36͢Δ
0SJHJO$BDIFͷվળҊͷ γϛϡϨʔγϣϯ݁Ռ w ΩϟογϡαΠζͷ֦େ w 0SJHJO$BDIFͰޮՌΞϦ w ΩϟογϡΞϧΰϦζϜͷมߋ w '*'0͔Β4-36ʹ͢Δ͚ͩͰώοτ্͕͕Δ
w &EHF$BDIFΑΓมߋͷޮՌ͕େ͖͘ग़͍ͯΔ
·ͱΊ w 'BDFCPPLͰଟஈΩϟογϡͰը૾৴͢Δ w Ωϟογϡώοτͷ༁֓Ͷଥʁ w ਓؾͷը૾্ͷΩϟογϡͰώοτ w ෆਓؾը૾#BDLFOE·ͰऔΓʹߦ͘͜ͱ͕ଟ͍ w
Ωϟογϡͷ࣋ͪํʹվળͷ༨͕͋Δ w &EHF0SJHJOͲͪΒͰޮՌ͕͋Γͦ͏