Like any other operating system, GNU/Linux has implemented memory management efficiently and even more than that. However, if any process is eating away your memory and you want to clear it, Linux provides a way to flush or clear the RAM cache.

ZRAM is a powerful ramdisk cache for Linux-based systems. Learn how you can speed up your Ubuntu system by enabling and tweaking ZRAM today.

Activer zram - Mettre /tmp en tmpfs
https://sebsauvage.net/wiki/doku.php?id=linux-ssd

How to Configure ZRAM on Ubuntu Linux
https://www.maketecheasier.com/configure-zram-ubuntu/

Linux: Le gros bloc-note
https://sebsauvage.net/wiki/doku.php?id=linux-vrac&s[]=borgbackup