2GB swap partition limit?

[Stephen J. Smoogen]

On 3/16/06, Russell Coker <russell at coker.com.au> wrote:
> On Friday 17 March 2006 02:23, Leszek Matok <Lam at lam.pl> wrote:
> > Dnia 17-03-2006, pią o godzinie 01:00 +1100, Russell Coker napisał(a):
> > > the 2*RAM advice originated when 16M of RAM
> > > was a big machine and that things are different now.
> >
> > Not really - iirc it appeared with Linux 2.4, which swaps more
> > aggressively than 2.2. When 2.4 came out, 256 MiB of system memory was
> > pretty common for small servers.
>
> I used to run servers on Linux 1.2, 1.3, and 2.0 with amounts of RAM such as
> 16M for which 2*RAM worked nicely.  The 2*RAM advice originated long before
> 2.4.
>
> http://www.coker.com.au/performance/linux-swap.html
>
> I've written a brief web page to give some advice on this matter, see the
> above URL.
>

I am pretty sure that the recommendation is close to what the old
SunOS-4.1.x installation guide says. Set aside swap to be 2x your
actual memory for optimal performance. I am pretty sure I was pointed
to that a long time ago.


--
Stephen J Smoogen.
CSIRT/Linux System Administrator