显示服务器内存： grep MemTotal /proc/meminfo
root @ node 1:~# grepmemtotal/proc/meminfo
MemTotal: 264025916 kB ##264G
root@node1:~# free
totalusedfreesharedbuff/cache available
mem :264025916471084281491843210092201999056215121832
Swap: 8388604 29184 8359420