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Date: Thu, 18 Nov 2004 13:08:30 +0100 (CET)
From: Claus Guttesen <cguttesen@yahoo.dk>
To: Arne "Wörner" <arne_woerner@yahoo.com>,
	Aaron Glenn <aaron.glenn@gmail.com>, freebsd-performance@freebsd.org
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Subject: Re: I've ran out of ideas
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> > You could try adding/tweaking HZ to 1000/2000 in
> > kernel and add kern.polling.enable=1 to
> > /etc/sysctl.conf.
> Here I would like to mention the man page polling(4)
> for clarification (it does
> not look like the GENERIC kernel can do polling...).

Add

options         HZ=2000
options         DEVICE_POLLING

to your kernel.
Claus