目錄
譯者序..................................................................................................................................................4
第1 章 memcached的基礎.................................................................................................................5
1.1 memcached是什么？...............................................................................................................5
1.2 memcached的特征...................................................................................................................6
協議簡單.....................................................................................................................................6
基于libevent的事件處理..........................................................................................................6
內置內存存儲方式.....................................................................................................................6
memcached不互相通信的分布式.............................................................................................6
1.3 安裝memcached.......................................................................................................................7
memcached的安裝.....................................................................................................................7
memcached的啟動.....................................................................................................................8
1.4 用客戶端連接...........................................................................................................................8
1.5 使用Cache::Memcached..........................................................................................................9
使用Cache::Memcached連接memcached................................................................................9
保存數據...................................................................................................................................10
獲取數據...................................................................................................................................10
刪除數據...................................................................................................................................10
增一和減一操作.......................................................................................................................10
1.6 總結.........................................................................................................................................11
第2章 理解memcached的內存存儲..............................................................................................12
2.1 Slab Allocation機制：整理內存以便重復使用...................................................................12
Slab Allocation的主要術語.....................................................................................................13
2.2 在Slab中緩存記錄的原理....................................................................................................13
2.3 Slab Allocator的缺點.............................................................................................................13
2.4 使用Growth Factor進行調優................................................................................................14
2.5 查看memcached的內部狀態................................................................................................15
2.6 查看slabs的使用狀況...........................................................................................................16
2.7 總結.........................................................................................................................................17
第3 章 memcached的刪除機制和發展方向...................................................................................18
3.1 memcached在數據刪除方面有效利用資源.........................................................................18
數據不會真正從memcached中消失......................................................................................18
Lazy Expiration.........................................................................................................................18
3.2 LRU：從緩存中有效刪除數據的原理.................................................................................18
3.3 memcached的最新發展方向.................................................................................................18
關于二進制協議.......................................................................................................................19
二進制協議的格式...................................................................................................................19
HEADER中引人注目的地方..................................................................................................20
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