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Date: Sat, 18 Feb 2006 15:05:52 -0500
From: Kris Kennaway <kris@obsecurity.org>
To: "David E. Cross" <crossd@cs.rpi.edu>
Message-ID: <20060218200552.GA16805@xor.obsecurity.org>
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Cc: freebsd-stable@freebsd.org
Subject: Re: high interrupt load under 6.0?
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On Sat, Feb 18, 2006 at 07:52:02PM +0000, David E. Cross wrote:
> I have a 486DX50 firewall that has been serving me well for a number of
> years.  I recently upgraded it fro 5.4 to 6.0 and performance plumeted
> rather drastically (about 40%).  I would like to fix it.  What I have
> noticed is that even when sitting idle the system spends ~20% of its
> time in interrupt.  Below I have included dmesg, kernel config, and
> vmstat -i information.

Try turning HZ=1000 back down to HZ=100.

Kris

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