From owner-freebsd-performance@FreeBSD.ORG  Thu May 26 18:57:02 2005
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Date: Thu, 26 May 2005 14:56:58 -0400 (EDT)
From: "Mike Jakubik" <mikej@rogers.com>
To: "Peter Kieser" <pfak@telus.net>
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Cc: freebsd-performance@freebsd.org
Subject: Re: Performance/lockup issues with FreeBSD as a router
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On Thu, May 26, 2005 2:52 pm, Peter Kieser said:

> I've tried without fast forwarding, I've tried without the TCP sendspace
> as well as reducing it to 65K, I let maxusers auto tune itself and I've
> even tried uping the KVA space.
>
> I'm at a loss, what would be the ideal sysctl's/loader.conf for a router
> thats doing a fair amount of traffic?

Have you tried different network cards?