Ubuntu查看内存的命令:
~$ free -m
在终端中输出如下信息:
xxx total used free shared buffers cached
Mem: 868 748 119 0 120 158
-/+ buffers/cache: 469 398
Swap: 1248 4 1244
参考:
JZP12专栏 http://blog.youkuaiyun.com/jzp12/article/details/7560450