How do you get swap on a VPS?
To enable a swap file in Linux, first create the swap file using a command like sudo dd if=/dev/zero of=/swapfile bs=1G count=1 for a 1GB file. Then, set it up with sudo mkswap /swapfile and activate it using sudo swapon /swapfile. To make it permanent, add /swapfile swap swap defaults 0 0 to your /etc/fstab file. fallocate -l 1G /swapfile
chmod 600 /swapfile
mkswap /swapfile
swapon /swapfile
Partly it's a money thing (they want to sell you RAM), partly it's so that the shared disk isn't getting thrashed by multiple VPS
/swapfile swap swap sw 0 0
or via ansible:
mount:
src: "/swapfile"
name: "swap"
fstype: "swap"
opts: "sw"
passno: "0"
dump: "0"
state: presentAnd that was like... two years ago? 1GB of RAM and actually ~700MB usable before I found the proper magik incantations to really disable kdump.
Also have used 1GB machines for literally years.
Strongly suggest you shouldn't strongly suggest.
You do understand what's being discussed... right?
Or you have a very peculiar understanding what 'VPS' means.
So no, VPS is a proper virtualization for a 15 years. And with a proper virtualization you have the full control.
I don't think using swap as "emergency RAM" makes a lot of sense in 2025. The arguments in favor of swap which I find convincing are about allowing the system to evict low use pages which otherwise would not be evictable.