Redis-快速缓存一切.pdf

Redis-快速缓存一切 高性能NoSQL数据库介绍 NoSQL大行其道 高并发请求 APP 海量化数据 memcached Disk 内存 图灵奖得主Jim Gray: “内存是新的硬盘，硬盘是新的磁带” 高性能的要求 Fast apps requirements 100msec = max E2E response time, under any load 50msec = average Internet latency 50msec = required app response time (includes processing multi DB accesses) 1msec = required DB response time = The only database to meet requirement 3 DB性能比较 DB performance comparison @1msec @1msec @1msec @20msec @10-50msec @10-50msec @100msec @100msec @100msec 4 与MySQL性能比较 Efficiency NoSQL Real world use case: • 500+GB 1.5Gbps 120Gbps •400K writes/sec No extra Tones of work at work at app level app level • 1500 reads/sec • 37.5KB average object size 6 Nodes 150+ Nodes cluster cluster