Ar an seachtú lá is fiche de mí Lúnasa, scríobh Johnny Billquist: 

 > But I know that people probably disagree with me, so I have just one 
 > question: how do I limit the file cache to take no more than, say, 16 MB?
 > No matter how much the system thinks it *might* be able to use.

My /etc/sysctl.conf has this; 

# Taken from Christan Biere's message 20031216002708.GA358@cyclonus 
vm.anonmin=50 
vm.anonmax=90 
vm.execmin=5 
vm.execmax=90 
vm.filemin=5 
vm.filemax=10 

I _think_ I was seeing the issues you are describing, and that these settings
resolved it, but I honestly don't remember any more. Anyway, vm.filemax does
what you ask there, if I'm reading sysctl(3) correctly. 

(Annoyingly, neither google nor marc.theaimsgroup.com seems to return a
message with that ID.)

-- 
Like the early Christians, Marx expected the millennium very soon; like
their successors, his have been disappointed--once more, the world has shown
itself recalcitrant to a tidy formula embodying the hopes of some section of
mankind. (Russell)