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Date: Wed, 27 Feb 2008 09:50:16 -0500
To: Holger Kipp <hk@alogis.com>, freebsd-stable@freebsd.org
From: Mike Tancsa <mike@sentex.net>
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Subject: Re: em very slow, shared irq... on 6.3p8
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At 05:49 AM 2/27/2008, Holger Kipp wrote:

>I therefore assume that the problem is between receiving the
>irq from em<x> and getting the data from the interface on the firewall
>itself.

I would try upgrading to 6.3R (there are several em driver bug fixes) 
and then try the box with
% cat /boot/loader.conf
hw.pci.enable_msi=1

...if the cards support msi.

I think pciconf -lvc should tell you if the cards and slots support it or not.

Also, if you dont need IPV6, use FAST_IPSEC. It does not need 
mpsafe.  If you do need IPSEC and IPV6, 7.0R got rid of that restriction.

         ---Mike