memcached -m 1024 -u root -p 11211 -c 1024 -P /var/memcached.pid -d
memcached 1.2.2 -p <num> TCP port number to listen on (default: 11211) -U <num> UDP port number to listen on (default: 0, off) -s <file> unix socket path to listen on (disables network support) -l <ip_addr> interface to listen on, default is INDRR_ANY -d run as a daemon -r maximize core file limit -u <username> assume identity of <username> (only when run as root) -m <num> max memory to use for items in megabytes, default is 64 MB -M return error on memory exhausted (rather than removing items) -c <num> max simultaneous connections, default is 1024 -k lock down all paged memory -v verbose (print errors/warnings while in event loop) -vv very verbose (also print client commands/reponses) -h print this help and exit -i print memcached and libevent license -b run a managed instanced (mnemonic: buckets) -P <file> save PID in <file>, only used with -d option -f <factor> chunk size growth factor, default 1.25 -n <bytes> minimum space allocated for key+value+flags, default 48
占用1024MB内存，并且允许最大1024个并发连接
[root@localhost ~]# telnet 127.0.0.1 11211 Trying 127.0.0.1... Connected to 127.0.0.1. Escape character is '^]'. set key 0 10 6 result STORED get key VALUE key 0 6 result END
set key 0 10 6 10秒过期，存6个字节