I just got a new server, with a new Intel P4 with hyperthreading,
all my older servers have been celerons.

I'm curious to know how effective it is on NetBSD?  I
have a couple of RHEL servers that, when running top, show
multiple cpu's as the thread engines (I assume?), but top on
NetBSD 3.1 doesn't show this.

I'm looking at deploying one of these as a zope/plone server
with a bunch of other stuff as well (cyrus imap, sendmail, BIND
etc, general network server stuff) and am curious to know if
it'll make much/any difference if the CPU can run multiple
threads and if the O/S can use it?

It doesn't matter that much to me, but I'm curious!

thanks for any advice/suggestions/pointers to doco ...

Carl