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Couchbase vs. memcached
1.
Creat r s
Night 2012/04/20 事業創造室 加藤寛之 Friday, April 20, 12
2.
本日のお題
どうしよう Friday, April 20, 12
3.
Sugimoto Syndromeもあって
ネタがない Friday, April 20, 12
4.
というのもアレなので
普段の仕事内容の延長で。。 Friday, April 20, 12
5.
Couchbase
の紹介と memcached とのパフォーマンスを比較してみた Friday, April 20, 12
6.
エンジニアでない方のための豆知識その1
memcachedって? データのキャッシュをメモリ上に 保存するソフトウェア。様々な大規模 ウェブサイトで使用されているよ! Friday, April 20, 12
7.
エンジニアでない方のための豆知識その1
Couchbaseって? memcachedとデータのやり取りは同じ だけど、ファイルをメモリとディスクの 両方に保存するソフトウェアだよ。 Friday, April 20, 12
8.
データをメモリ上に保存するので
memcachedがダウンする => データ消失 Friday, April 20, 12
9.
データをメモリ上に保存するので
memcachedがダウンする => データ消失 Couchbaseならダウンしても 再起動すればデータが復活するよ! Friday, April 20, 12
10.
データをメモリ上に保存するので
memcachedがダウンする => データ消失 Couchbaseならダウンしても 再起動すればデータが復活するよ! + CouchbaseならClusteringもサポート! Friday, April 20, 12
11.
CouchbaseのClustering
Couchbase Couchbase Couchbase Couchbase Friday, April 20, 12
12.
CouchbaseのClustering
ria10 = rappa! Couchbase Couchbase Couchbase Couchbase Friday, April 20, 12
13.
CouchbaseのClustering
ria10 ? rappa! Couchbase Couchbase Couchbase Couchbase Friday, April 20, 12
14.
CouchbaseのClustering
ria10 ? rappa! Couchbase Couchbase ria10 ? rappa! ria10 ? Couchbase Couchbase rappa! Friday, April 20, 12
15.
CouchbaseのClustering
ria10 ? rappa! Couchbase ria10 ? rappa! ria10 ? Couchbase Couchbase rappa! Friday, April 20, 12
16.
CouchbaseのClustering
ria10 ? rappa! Couchbase ria10 ? Couchbase rappa! Friday, April 20, 12
17.
CouchbaseのClustering
ria10 ? rappa! Couchbase Friday, April 20, 12
18.
CouchbaseのClustering
ria10 ? ria10 ? rappa! rappa! Couchbase Couchbase ria10 ? rappa! ria10 ? Couchbase Couchbase rappa! Friday, April 20, 12
19.
リア充が爆発したところで
パフォーマンス比較に進みます Friday, April 20, 12
20.
パフォーマンス比較パターン
・web app => memcached ・web app => couchbase ・web app => haproxy => memcached ・web app => haproxy => couchbase Friday, April 20, 12
21.
web app =>
memcached web app memcached Friday, April 20, 12
22.
web app =>
couchbase web app Couchbase Friday, April 20, 12
23.
web app =>
haproxy => memcached web app memcached memcached memcached Friday, April 20, 12
24.
web app =>
haproxy => couchbase web app Couchbase Couchbase Couchbase Friday, April 20, 12
25.
結果(Core : 2,
RAM : 1GB) 700 525 Requset / sec 442.3 350 187.5 175 139.3 105.1 0 memcached Couchbase memcached + haproxy Couchbase + haproxy ※リクエスト数 : 1,000回、同時接続数 : 50 Friday, April 20, 12
26.
結果(Core : 3,
RAM : 2GB) 700 657.4 525 Requset / sec 350 256.4 228.5 175 119.2 0 memcached Couchbase memcached + haproxy Couchbase + haproxy ※リクエスト数 : 1,000回、同時接続数 : 50 Friday, April 20, 12
27.
Couchbase vs memcached
パフォーマンス比較まとめ ・単体ではmemcachedに比べて 40%程度の性能 ・haproxy経由でアクセス先をばらした 場合はmemcachedに比べて 75%程度の性能。 ・コア数が増える(CPU性能が上がる) と性能差が大きくなる? Friday, April 20, 12
28.
つまり、アクセスを分散させた場合
・Clustering機能を取る ・25%の性能向上を取る かのトレードオフになる Friday, April 20, 12
29.
Thanks! Friday, April 20,
12
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