1. Turn off all swap processes
sudo swapoff -a
  1. Resize the swap to be 8GB for example
sudo dd if=/dev/zero of=/swapfile bs=1M count=8192

For 4GB will have to be 4086

if = input file

of = output file

bs = block size

count = multiplier of blocks

  1. Change permission
sudo chmod 600 /swapfile
  1. Make the file usable as swap
sudo mkswap /swapfile
  1. Activate the swap file
sudo swapon /swapfile
  1. Edit /etc/fstab and add the new swapfile entry if it isn’t already there
/swapfile none swap sw 0 0
  1. Check the amount of swap available:
grep SwapTotal /proc/meminfo

👉 Source