Linux增加虚拟内存方法

例如增加2G虚拟内存，操作如下:

[[email protected] ~]# free -m
[[email protected] tmp]# dd if=/dev/zero of=/tmp/big_swap bs=1024 count=2000000
[[email protected] tmp]# du -sh /tmp/big_swap
[[email protected] tmp]# mkswap /tmp/big_swap
[[email protected] tmp]# swapon /tmp/big_swap
[[email protected] tmp]# free –m

原文地址：https://www.cnblogs.com/kinwing/p/11104973.html