memcache 管理指令
连上memcache，然后stats，详细如下：mqq@32_167_game:~> telnet server port
Trying 172.16.32.166...
Connected to 172.16.32.166.
Escape character is '^]'.
stats
STAT pid 26530
STAT uptime 5807
STAT time 1258643806
STAT version 1.2.2
STAT pointer_size 64
STAT rusage_user 12.372773
STAT rusage_system 24.233514
STAT curr_items 72820
STAT total_items 5526
STAT bytes 95306264
STAT curr_connections 115
STAT total_connections 1
STAT connection_structures 116
STAT cmd_get 12507
STAT cmd_set 5526
STAT get_hits 12498
STAT get_misses 9
STAT evictions 0
STAT bytes_read 7363968
STAT bytes_written 15636889
STAT limit_maxbytes 2147483648
STAT threads 1
END
pidmemcache服务器的进程IDuptime服务器已经运行的秒数time服务器当前的unix时间戳versionmemcache版本pointer_size当前OS的指针大小（32位系统一般是32bit）rusage_user进程的累计用户时间rusage_system进程的累计系统时间curr_items服务器当前存储的items数量total_items从服务器启动以后存储的items总数量bytes当前服务器存储items占用的字节数curr_connections当前打开着的连接数total_connections从服务器启动以后曾经打开过的连接数connection_structures服务器分配的连接构造数cmd_getget命令（获取）总请求次数cmd_setset命令（保存）总请求次数get_hits总命中次数get_misses总未命中次数evictions为获取空闲内存而删除的items数（分配给memcache的空间用满后需要删除旧的items来得到空间分配给新的items）bytes_read总读取字节数（请求字节数）bytes_written总发送字节数（结果字节数）limit_maxbytes分配给memcache的内存大小（字节）threads当前线程数
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