Memcached 启动参数

-p       TCP 监听端口，默认 11211

-U       UDP 监听端口，默认 11211 ，如果配置 0 表示关闭。

-s      UNIX socket path to listen on (disables network support)

-a      access mask for UNIX socket, in octal (default: 0700)

-l     监听 IP 。默认是本地所有 IP 地址

-d            启动一个守护进程

-r            maximize core file limit

-u   assume identity of (only when run as root)

-m       max memory to use for items in megabytes (default: 64 MB)

-M            return error on memory exhausted (rather than removing items)

-c       max simultaneous connections (default: 1024)

-k            lock down all paged memory.  Note that there is a

               limit on how much memory you may lock.  Trying to

              allocate more than that would fail, so be sure you

              set the limit correctly for the user you started

              the daemon with (not for -u user;

               under sh this is done with 'ulimit -S -l NUM_KB').

-v            verbose (print errors/warnings while in event loop)

-vv           very verbose (also print client commands/reponses)

-vvv          extremely verbose (also print internal state transitions)

-h            print this help and exit

-i            print memcached and libevent license

-P      save PID in , only used with -d option

-f    chunk size growth factor (default: 1.25)

-n     minimum space allocated for key+value+flags (default: 48)

-L            Try to use large memory pages (if available). Increasing

              the memory page size could reduce the number of TLB misses

              and improve the performance. In order to get large pages

              from the OS, memcached will allocate the total item-cache

              in one large chunk.

-D      Use as the delimiter between key prefixes and IDs.

              This is used for per-prefix stats reporting. The default is

              ":" (colon). If this option is specified, stats collection

              is turned on automatically; if not, then it may be turned on

              by sending the "stats detail on" command to the server.

-t       number of threads to use (default: 4)

-R             Maximum number of requests per event, limits the number of

              requests process for a given connection to prevent

              starvation (default: 20)

-C            Disable use of CAS

-b            Set the backlog queue limit (default: 1024)

-B            Binding protocol - one of ascii, binary, or auto (default)

-I            Override the size of each slab page. Adjusts max item size

              (default: 1mb, min: 1k, max: 128m)

    -p 监听的端口

    -l 连接的 IP 地址 , 默认是本机

    -d start 启动 memcached 服务

    -d restart 重起 memcached 服务

    -d stop|shutdown 关闭正在运行的 memcached 服务

    -d install 安装 memcached 服务

    -d uninstall 卸载 memcached 服务

    -u 以的身份运行 ( 仅在以 root 运行的时候有效 )

    -m 最大内存使用，单位 MB 。默认 64MB

    -M 内存耗尽时返回错误，而不是删除项

    -c 最大同时连接数，默认是 1024

    -f 块大小增长因子，默认是 1.25

    -n 最小分配空间， key+value+flags 默认是 48

-h 显示帮助