We know that using swap space instead of RAM (memory) can severely slow down the performance of Linux. So then, one might ask, since I have more than enough memory available, wouldn’t it better to remove swap space completely? The short answer is, No. There are performance benefits when swap is enabled, even when you have more than enough ram.

debirf is a system that will create diskless, all-in-ram images (kernel and initramfs) that boot entirely into ram and leave the user in a fully functional Debian system, disks untouched.