Comprovar l’estat de la memoria virtual

sudo swapon -s

Crear i activar

sudo fallocate -l 4G /swapfile
chmod 600 /swapfile
sudo mkswap /swapfile 
sudo swapon /swapfile

Permanent

sudo vim /etc/fstab
Add swap in fatab

Comprovar

sudo swapon -s
free -m

Swappiness

cat /proc/sys/vm/swappiness
sudo sysctl vm.swappiness=10
sudo nano /etc/sysctl.conf -> afegir vm.swappiness=10