I'm setting up a machine for a mirror of anoncvs, and it has 4G of RAM.  
I'm trying to take maximum advantage of it to keep the CVS repository in 
RAM (in case it's not clear, this is the NetBSD CVS repository, which is 
over 3G is size) to maximize performance.

Despite various tweaks I've made to things, I'm having a hard time 
getting the file cache (which is the one I assume I should care about) 
much over 1.5G - consequently things get pretty slow at times.  Can 
anyone who might already be running an anoncvs mirror suggest some 
settings to start with?  I've also bumped kern.maxvnodes to 500000.

Thanks,
+j