Swap

sudo fallocate -l 2G /swapfile && sudo chmod 600 /swapfile && sudo mkswap /swapfile && sudo swapon /swapfile && free -h

sudo cp /etc/fstab /etc/fstab.bak && \
echo '/swapfile none swap sw 0 0' | sudo tee -a /etc/fstab

sysctl vm.swappiness=10 && \
sysctl vm.vfs_cache_pressure=50 && \
echo 'vm.swappiness=10' | sudo tee -a /etc/sysctl.conf && \
echo 'vm.vfs_cache_pressure=50' | sudo tee -a /etc/sysctl.conf