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Increase the nfs access cache timeout from 2 to 60. The latter is a more appropriate value and is also the default set by the kernel. I could not find a justification of why rc.conf began overriding it back in 1998.
This dramatically cuts NFS traffic on e.g. a busy system with NFS root.
$FreeBSD: src/etc/defaults/rc.conf,v 1.285 2006/05/24 00:06:14 kris Exp $
