Re: 2.4 VM & swap question

[Dan Podeanu <pdan@spiral.extreme.ro>]

On Sun, Jun 17, 2001 at 10:48:36AM -0700, Tom Rini wrote:
> 'lo all.  I've got a question about swap and RAM requirements in 2.4.  Now,
> when 2.4.0 was kicked out, the fact that you need swap=2xRAM was mentioned.
> But what I'm wondering is what exactly are the limits on this.  Right now
> I've got an x86 box w/ 128ram and currently 256swap.  When I had 128, I'd get
> low on ram/swap after some time in X, and doing this seems to 'fix' it, in
> 2.4.4.  However, I've also got 2 PPC boxes, both with 256:256 in 2.4.  One
> of which never has X up, but lots of other activity, and swap usage seems
> to be about the same as 2.2.x (right now 'free' says i'm ~40MB into swap,
> 18day+ uptime).  The other box is a laptop and has X up when it's awake and
> that too doesn't seem to have any problem.  So what exactly is the real
> minium swap ammount?

I doubt there is a limit. I think 'it depends on what you're planning
to do' is the correct answer. For a blank router, 32mb ram/64 swap can
be enough, for a web/database server, you need more, etc.