From owner-freebsd-net Fri Oct 12 11:33:35 2001 Delivered-To: freebsd-net@freebsd.org Received: from squigy.ddm.wox.org (p1b.neon3.sentex.ca [64.7.131.17]) by hub.freebsd.org (Postfix) with ESMTP id 950F037B403 for ; Fri, 12 Oct 2001 11:33:32 -0700 (PDT) Received: from rama.ddm.wox.org (rama.ddm.wox.org [204.50.152.20]) by squigy.ddm.wox.org (Postfix) with ESMTP id D0EE68B953; Fri, 12 Oct 2001 14:33:30 -0400 (EDT) Received: by rama.ddm.wox.org (Postfix, from userid 5000) id B7E1C3200F; Fri, 12 Oct 2001 14:33:02 -0400 (EDT) Date: Fri, 12 Oct 2001 14:33:02 -0400 From: Dave Chapeskie To: Mike Tancsa Cc: freebsd-net@FreeBSD.ORG Subject: Re: strange results with increased net.inet.ip.intr_queue_maxlen Message-ID: <20011012143302.A8938@ddm.wox.org> Mail-Followup-To: Dave Chapeskie , Mike Tancsa , freebsd-net@FreeBSD.ORG References: <200110120116.f9C1GEv18196@arch20m.dellroad.org> <200110120130.f9C1Ubw15419@iguana.aciri.org> <5.1.0.14.0.20011012114959.0717a2a0@marble.sentex.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <5.1.0.14.0.20011012114959.0717a2a0@marble.sentex.ca>; from mike@sentex.net on Fri, Oct 12, 2001 at 11:56:32AM -0400 X-no-archive: yes Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On Fri, Oct 12, 2001 at 11:56:32AM -0400, Mike Tancsa wrote: > Is it better to drop > packets when the queue is full and let the various applications behind me > figure it out, or is it better to add some latency at the network layer so > the apps dont have to deal with it. If you find yourself hitting the queue limit I'd suggest using RED or GRED with ipfw to drop packets more intelligently before the hard limit is hit. I'd only increase the the queue to avoid dropping packets during short bursts of activity. If the traffic is steady then raising the queue does nothing useful and adds latency. -- Dave Chapeskie OpenPGP Key KeyId: 3D2B6B34 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message