On Fri, 1 May 2020 at 18:49 J. Roeleveld <jo...@antarean.org> wrote: > On 1 May 2020 21:50:02 CEST, Raphael MD <raph...@gmail.com> wrote: > >Hello! > > > >Could I turn my Linux swap off. > >I have 32 GB of RAM memory, I suppose my system don’t need swap, > >because > >I’vea lot of RAM, is this true? > > > >Thanks > > This question keeps getting asked every time people go past some imaginary > large figure of RAM. > > First time I encountered it was somewhere in the 1990s. A friend had a > machine with 64MB ram, a massive amount at that time, and disabled all swap. > He was surprised his machine crashed because of memory issues, until I > asked what he was running. The list included several memory intensive > applications. > He never asked that again and adds it to all his machines. > > My desktop has 32GB and also has some swap. I do regularly see it used and > not because of memory leaks like Dale is mentioning, although those do > appear on occasion. On my desktop it's mostly because I have a lot of stuff > running the whole time. > > So, yes, you still need swap and always will. Unless you put about 10 > times the current magical figure in a desktop. In my view, that would be > 320GB for now, and in another 5 years, that would be around 640GB. > When you have that level of overkill in a desktop, I will not consider OOM > to be likely. > > > -- > Joost > > -- > Sent from my Android device with K-9 Mail. Please excuse my brevity. >
Well, it’s figuring that some sort of swap space is necessary, but regarding pressure level on kernel, can I setup it to zero or I’m obligated to put some number because I’ve a swap file? Thanks > > -- M.S. Raphael Mejias Dias Nuclear Engineer | Reactors Secure e-mail: raphael.mejias.d...@protonmail.com PGP Key for raph...@gmail.com: https://pgp.mit.edu/pks/lookup?op=get&search=0x87BC5A746072F951
