Change Swap Size

Turn off all running swap processes:  swapoff -a 
 Resize swap  fallocate -l 1G /swapfile  (change 1G to the gigabyte size you want it to be) 
 CHMOD swap:  chmod 600 /swapfile 
 Make file usable as swap  mkswap /swapfile 
 Active the swap file  swapon /swapfile 
 
 To verify your swap size run the following command and you will see the swap size:  free -m