On Sat, 18 Aug 2001 15:27, David E. Fox wrote:
> > ever uses 250MB, do I follow the rule proposed here of adding some
> > arbitrary percent of swap, or do I use the other rule of RAM x 2 up to
> > 200MB? My most
>
> As I pointed out in the other message, it really depends on what your usage
> of the system is, plus some reserve in case the system really does run out
> of memory resources. Obviously 20 megs of swap is too small for most things
> - under normal situations, I may have more than that in swap despite the
> fact I have 256 megs of RAM. And, my system isn't bogged down. There is a
> big difference between whether or not you have X magabytes in swap being
> used and whether or not your system is swapping out of control - and it is
> possible to have a large amount of stuff in swap and still have a system
> that isn't swapping to death.
>
> I don't agree with Sridhar's hard and fast rule of 200 megs, either. Of
I have mentioned repeatedly that my advice was intended to be taken as
a guide. People have different memory usage patterns, but the method I use
works well in most instances. In short, do what works best for you.
> course, that might be enough for him, and although one might not
> *routinely* want to run with that much swap being in use all the time, you
> don't want to run out of it. So, you want to add some extra as a "fudge
> factor", which roughly compromises between how much disk space you want to
> commit to the swap partition -- how much you can afford to spend -- and
> your own usage habits and experience which determine how much swap space
> you can get away with allocating. And, since a swap partition is not a
> filesystem, it really doesn't matter from a speed perspective whether you
> use 20 megs or 10 gigs (to use your examples). Swap space is implemented as
> a usage bitmap, so it shouldn't take significantly longer to access swap
> space at the end of the partition, vs. the beginning.
>
> > Isaac
--
Sridhar Dhanapalan.
"There are two major products that come from Berkeley:
LSD and UNIX. We don't believe this to be a coincidence."
-- Jeremy S. Anderson
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