Date: Mon, 30 Nov 2009 16:34:21 -0800 From: Michael Sierchio <kudzu@tenebras.com> To: freebsd-ipfw@freebsd.org, freebsd-current@freebsd.org Subject: Re: dummynet issues Message-ID: <4B14648D.8090507@tenebras.com> In-Reply-To: <20091130234537.GA78185@lath.rinet.ru> References: <4B129960.9030107@gmail.com> <4B12B6B9.3030106@bsd.com.br> <4B12C32F.3060709@gmail.com> <4B12C543.2070204@mgwigglesworth.net> <4B141A77.4030102@gmail.com> <20091130201222.GC72710@lath.rinet.ru> <A173B0FA-C964-431C-8DAF-AE4159065111@wanderview.com> <20091130234537.GA78185@lath.rinet.ru>
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Oleg Bulyzhin wrote: > On Mon, Nov 30, 2009 at 03:38:50PM -0500, Ben Kelly wrote: >> I've also run into the problem recently on 9-CURRENT (last synced on 11/13/2009). My configuration looks like: >> > > My quick attempt to reproduce the issue failed. Perhaps i'm missing something. > > How are you measuring connection bandwidth? > Just an aside - queue weights only come into play when queues are full. If you don't specify the queue size in terms of entries as opposed to bytes, you may not get the behavior you expect with small packets. What's your nominal connect rate in each direction? Your pipe should be that size or smaller, of course. Another aside - in practice, bulk traffic is at MTU size, and interactive packets or naked TCP ACKs are small. iplen alone is sufficient for the packets you want to assign a lower weight. -- Michael Sierchio +1 415 378 1182 PO Box 9036 Berkeley CA 94709 US kudzu@tenebras.com
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