sudo fallocate -l 4G /swapfile sudo chmod 600 /swapfile sudo mkswap /swapfile sudo swapon /swapfile sudo swapon -s free -m sudo vi /etc/fstab /swapfile none swap sw 0 0
cat /proc/sys/vm/swappiness sudo sysctl vm.swappiness=10
https://www.digitalocean.com/community/tutorials/how-to-add-swap-on-ubuntu-14-04