Is swap really needed when RAM's aplenty

Bill Davidsen davidsen at
Wed Aug 18 18:00:54 UTC 2010

Sam Varshavchik wrote:
> I'll probably have a new server with 16 gigs of RAM on the way, soon.
> With this amount of RAM being sufficient, do I really need a swap 
> partition set up? I do understand that a swap partition is needed for 
> hibernation, but this server does not need to hibernate.
If by "really needed" you mean will the system run without, then no. if you mean 
can bad things happen other than running out of memory, maybe. I never found a 
good reason not to have swap, on a server at least a few GB larger than memory, 
on a desktop 2x the size of the largest single process you expect to run.

If you have that much memory I would hope you have enough disk that this isn't a 
means of saving disk space. :-(

Bill Davidsen <davidsen at>
   "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot

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