用檔案新增Swap分割槽

用檔案新增Swap分割槽

free -m

              total        used        free      shared  buff/cache   available

Mem:           7822        6692         118           1        1011         859

Swap:             0           0           0

mkdir /var/swap

chmod 700 /var/swap/

cd /var/swap/

dd if=/dev/zero of=./swapfile.swap bs=1M count=4096

chmod 0600 swapfile.swap

mkswap swapfile.swap

swapon swapfile.swap

vim /etc/fstab

/var/swap/swapfile.swap  swap                                     swap    defaults        0 0