On Fri, 1 May 2020 15:04:12 -0500, Canek Peláez Valdés wrote: > I have 3 desktop machines with 32 GB of memory. In all 3 I still have > swap (32 GB, I stopped using the "twice the amount of RAM" rule years > ago). I don't think I have ever used one single byte from the swap; it > always sits with "0 bytes used" when I check top.
% free -h
total used free shared buff/cache available
Mem: 31Gi 3.2Gi 9Gi 5.3Gi 18Gi 22Gi
Swap: 8.0Gi 8.0Mi 8.0Gi
Something's using a little of it here.
> So I don't think you need the swap; I keep using it in case I need to
> ever hibernate the machines, bit I never do. Also, it's always on the
> mechanical disks, so it's dirty cheap.
As you say, it's cheap and you're hardly going to noting a few GB out of
a multi-TB disk.
The question was about *needing* swap, to which the answer is generally
no. But the more important question is whether you are better off with or
without it, which is a much more complex problem, although I see no good
reason to not have it and reasonable reasons to leave it there.
--
Neil Bothwick
WORM: (n.) acronym for Write Once, Read Mangled. Used to describe a
normally-functioning computer disk of the very latest design.
pgpIN_IzY6awa.pgp
Description: OpenPGP digital signature
