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PHPで学ぶCacheの距離の話
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Ryo Tomidokoro
October 31, 2018
Programming
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PHPで学ぶCacheの距離の話
Cacheの距離について
Ryo Tomidokoro
October 31, 2018
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Transcript
PHPͰֶͿCacheͷڑͷ 1)1ษڧձ
Cacheͱʁ
Oxford Dictionary ΑΓ An auxilirary memory from which high speed
retrieval is possible ߴͰσʔλऔಘ͕Ͱ͖ΔهԱஔ
WebΞϓϦͰͷར༻༻్ ߴෛՙΫΤϦͷॲཧ݁Ռ ूܭॲཧͷ݁Ռ ϧʔςΟϯά ઃఆϑΝΠϧ CDNͱ͔ϒϥβΩϟογϡɺࠓճର֎
ࠓ͢͜ͱ CacheͷޮՌΛࣄલʹѲ͢Δ͜ͱ ΑΓߴ͍ޮՌΛಘΔͨΊͷCacheͷڑͷ
ࠓ͞ͳ͍͜ͱ CacheͷϛυϧΣΞ Cacheͷӡ༻ ࢀߟ1 WebαʔϏεʹ͓͚ΔΩϟογϡઓུ https://speakerdeck.com/yusukebe/websabisuniokeru-kiyatusiyuzhan-lue ࢀߟ2 WebΞϓϦέʔγϣϯͷΩϟογϡઓུͱͦͷύλʔϯ https://speakerdeck.com/moznion/pattern-and-strategy-of-web-application-caching
CacheͷޮՌΛࣄલʹѲ͢Δ
CacheΛ͏͜ͱͰԿނ͘ͳΔͷ͔ʁ
ྫ͑͜Μͳߏ
ಉҰωοτϫʔΫͷDBͷΫΤϦ݁ՌΛCache ΫΤϦ݁ՌΛಘΔ·Ͱͷ࣌ؒ 5$1ଓ $16ԋࢉ %JTL*0 MySQL + +
5$1ଓ $16ԋࢉ %JTL*0 MySQL + + ΫΤϦ݁ՌΛಘΔ·Ͱͷ࣌ؒ - RedisʹCache 5$1ଓ
.FNPSZ*0 Redis + ಉҰωοτϫʔΫͷDBͷΫΤϦ݁ՌΛCache ΫΤϦ݁ՌΛಘΔ·Ͱͷ࣌ؒ
$16ԋࢉ %JTL*0 MySQL + .FNPSZ*0 Redis MemoryIOͷํ͕͚Εɺ্͕ݟࠐΊͦ͏
ϨΠςϯγʔ https://gist.github.com/jboner/2841832
͔͠͠ɺ͋·Γ͘ͳΒͳ͍ύλʔϯ͕͋Δ
DBͷσʔλ͕ϝϞϦʹΔ߹ ΫΤϦ݁ՌΛಘΔ·Ͱͷ࣌ؒ 5$1ଓ ΄΅.FNPSZ*0 MySQL + ΫΤϦ݁ՌΛಘΔ·Ͱͷ࣌ؒ - RedisʹCache 5$1ଓ
.FNPSZ*0 Redis +
DBͷσʔλ͕ϝϞϦʹΔ߹ ΄΅.FNPSZ*0 MySQL .FNPSZ*0 Redis Φʔμʔ͕มΘΔΑ͏ͳ্ݟࠐΊͳ͍
͜ΕҎ্ͷ্Λ͢Δʹʁʁ
WebΞϓϦ͔ΒCache·ͰͷڑΛม͑Δ 5$1ଓ .FNPSZ*0 ͬͪ͜ +
WebΞϓϦ͔ΒCache·ͰͷڑΛม͑Δ 5$1ଓ .FNPSZ*0 ͬͪ͜ + TCPଓΛΊΔ -> ϩʔΧϧCache
https://gist.github.com/jboner/2841832 ϨΠςϯγʔ
PHPͰϩʔΧϧCache ϩʔΧϧRedis, Memcached -> ਏ͍ ϑΝΠϧ -> ͍͍͚Ͳ… APCu(ϝϞϦ) ->
ྑͦ͞͏ աڈͷऔΓΈ - ແཧΓOPCache͏Cache https://speakerdeck.com/hanhan1978/cachegasu-ifalsekaque-ren-suruhua
PHPͷࣄ ϓϩηεͷಠཱੑ͕ߴ͍ ॲཧऴྃޙʹϝϞϦΫϦΞ͞ΕΔ ϓϩηεؒͰͷϝϞϦڞ༗͕ग़དྷͳ͍ɻ PHPΣϒαʔόʔͷొ͕·ΕΔ
࣮ଌͯ͠Έͨ
Trans/SecͱCacheํ๏ ํ๏ USBOTTFD ϦϞʔτ.Z42- ϦϞʔτ3FEJT ϩʔΧϧ"1$V DBσʔλ͕ϝϞϦʹ͍ͬͯΔ߹ʹ͍ͭͯݕূ
·ͱΊ Latencyͷද͓֮͑ͯ͜͏Ͷ CacheʹΑΔվળݟࠐΈࣄલʹཱͯΔ ܭࢉྔ͚ͩ͡Όͳ͘ڑߟ͑Δ ͳ͓ɺCacheӡ༻পͰ͢….
͓͠·͍