create swapfile

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swapoff -a
dd if=/dev/zero of=/swapfile bs=1M count=1024
chmod 0600 /swapfile
mkswap /swapfile
echo "/swapfile  swap  swap  sw  0  0" >> /etc/fstab
swapon -a

set swappiniess

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echo "vm.swappiness=10" > /etc/sysctl.conf
sysctl -p