Most things seem faster and the system seems much more responsive after switching to NetBSD 6, however named seems to take much more cpu, in fact at times it maxes out the system. Does anyone have any ideas on what I could do to improve performance?
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Could it be the issue discussed in this thread? http://mail-index.netbsd.org/current-users/2012/09/19/msg021135.html
Good to know about that. Another possibility is that your server is set up as a recursive resolver and people are using it for reflection attacks. Can you get a tcpdump and see how many packets are DNS. Run something like this:
tcpdump -c 250 -n | grep .53:If you see lots of lookups for isc.org, your server is being used for reflection attacks.
John