This guide concerns swap on Managed Cloud.

Swap and RAM

Swap space may be used even when RAM usage is low. Indeed, the system can use swap space at any time if it deems it useful.

Swap space is not a dedicated memory area to be used only when there is no free RAM, although this is often its primary use.

If you would like to learn more, there is a "swappiness" setting that allows you to define how the system will use the swap space. The default value is 60 and it cannot be changed.