linux下创建SWAP交换分区
1、创建1GB的swap
# dd if=/dev/zero of=/swapfile bs=1k count=1024k
# dd if=/dev/zero of=/swapfile bs=1k count=2048k
# mkswap /swapfile
# swapon /swapfile
# echo "/swapfile swap swap auto 0 0" | sudo tee -a /etc/fstab
# sudo sysctl -w vm.swappiness=10
# echo vm.swappiness = 10 | sudo tee -a /etc/sysctl.conf
2、创建2GB的swap
# dd if=/dev/zero of=/swapfile bs=1k count=2048k
# mkswap /swapfile
# swapon /swapfile
# echo "/swapfile swap swap auto 0 0" | sudo tee -a /etc/fstab
# sudo sysctl -w vm.swappiness=10
# echo vm.swappiness = 10 | sudo tee -a /etc/sysctl.conf