this post was submitted on 07 Jul 2023
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I've heard a lot of people say your swap should be 2x RAM.. but do I really need 32GB of swap?

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[–] [email protected] 22 points 1 year ago (2 children)

Don't even bother with a SWAP partition. Create an empty file on your / partition so you can grow/shrink it as needed.

did if=/dev/zero of=/SWAP bs=1024m count=4
mkswap /SWAP
swapon /SWAP
[–] [email protected] 5 points 1 year ago* (last edited 1 year ago)

This is the way! There's a catch with swap files on encrypted disks and hibernation but that's quite a special case. Edit: forgot to mention zswap, the compressed version of swap.

[–] [email protected] 5 points 1 year ago (1 children)

Not a golden rule. For example btrfs has limited support for swapfiles.

[–] [email protected] 1 points 1 year ago

Of course there's no golden rule. But I've found this one to be pretty useful ! Didn't know about btrfs limitations though, thanks for the hint!