From owner-freebsd-hackers Sun Dec 30 11:18: 1 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from apollo.backplane.com (apollo.backplane.com [216.240.41.2]) by hub.freebsd.org (Postfix) with ESMTP id 8589737B41E for ; Sun, 30 Dec 2001 11:17:41 -0800 (PST) Received: (from dillon@localhost) by apollo.backplane.com (8.11.6/8.9.1) id fBUJHdm13120; Sun, 30 Dec 2001 11:17:39 -0800 (PST) (envelope-from dillon) Date: Sun, 30 Dec 2001 11:17:39 -0800 (PST) From: Matthew Dillon Message-Id: <200112301917.fBUJHdm13120@apollo.backplane.com> To: Josef Karthauser Cc: Alexander Haderer , freebsd-hackers@FreeBSD.ORG Subject: Re: FreeBSD performing worse than Linux? References: <20011128153817.T61580@monorchid.lemis.com> <15364.38174.938500.946169@caddis.yogotech.com> <20011128104629.A43642@walton.maths.tcd.ie> <5.1.0.14.1.20011130181236.00a80160@postamt1.charite.de> <200111302047.fAUKlT811090@apollo.backplane.com> <20011130231802.E99520@tao.org.uk> <200111302345.fAUNjLI27798@apollo.backplane.com> <20011228153330.A11251@tao.org.uk> <200112300644.fBU6iVG10959@apollo.backplane.com> <20011230182612.D5642@tao.org.uk> Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG : :No switching infrastructure. It's a 10mb/s half duplex ethernet :network, with two hubs between the two machines. : :... : :Yes, it is half-duplex. : :Joe I think there may be a problem with your hub setup (e.g. exceeding the hub count or end-to-end length limitations) that is either resulting in packet loss, or the packet burst is locking up the ethernet long enough to cause a timeout. The problem looks very much like an unrecognized collision to me. I recommend replacing the hubs with switches. The whole topology will be happier. -Matt Matthew Dillon To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message