1) cat /proc/sys/vm/freepages
you should see something like:
16 32 48
This should be x, x*1.5 and x*2 where x is the number of megs of RAM you
have.
echo "x*2 x*3 x*4" >/proc/sys/vm/freepages
(i.e. double all the numbers and put them back in the proc file)
For our example machine above, the command would be:
echo "32 64 96" >/proc/sys/vm/freepages
Chances are you'll notice some difference (for the worse) in performance,
but my systems haven't crashed since I did it. :D
Jason