CentOS6.5 释放SWAP虚拟内存的释放一般都是伴随着关闭应用程式来说的可以通过命令刷新swap还原到初始状态：swapoff -aswapon -a例如：[root@wjlcn1026 vm]# free -m total used free shared buffers cachedMem: 1744 913 830 0 0 491-/+ buffers/cache: 422 1321Swap: 2015 1097 918[root@wjlcn1026 vm]# swapoff -a[root@wjlcn1026 vm]# free -m total used free shared buffers cachedMem: 1744 1109 634 0 5 694-/+ buffers/cache: 410 1333Swap: 0 0 0[root@wjlcn1026 vm]# swapon -a[root@wjlcn1026 vm]# free -m total used free shared buffers cachedMem: 1744 1116 627 0 5 694-/+ buffers/cache: 417 1326Swap: 2015 0 2015