From owner-freebsd-chat Thu Oct 8 14:08:18 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id OAA20486 for freebsd-chat-outgoing; Thu, 8 Oct 1998 14:08:18 -0700 (PDT) (envelope-from owner-freebsd-chat@FreeBSD.ORG) Received: from ifi.uio.no (ifi.uio.no [129.240.64.2]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id OAA20202 for ; Thu, 8 Oct 1998 14:07:23 -0700 (PDT) (envelope-from dag-erli@ifi.uio.no) Received: from hrotti.ifi.uio.no (2602@hrotti.ifi.uio.no [129.240.64.15]) by ifi.uio.no (8.8.8/8.8.7/ifi0.2) with ESMTP id WAA29961; Thu, 8 Oct 1998 22:57:07 +0200 (MET DST) Received: (from dag-erli@localhost) by hrotti.ifi.uio.no ; Thu, 8 Oct 1998 22:57:07 +0200 (MET DST) Mime-Version: 1.0 To: Eivind Eklund Cc: Andre Oppermann , Reginald Perry , "'Jason C. Wells'" , freebsd-chat@FreeBSD.ORG Subject: Re: PC Magazine 10/20/1998 Article about FreeBSD References: <69CAF7F9AF57D2118D9A0000F881B4DD06BCE9@zsoexc1.zso.dec.com> <69CAF7F9AF57D2118D9A0000F881B4DD02F30D@zsoexc1.zso.dec.com> <19981008153419.04963@follo.net> <361D105F.2E7757CD@pipeline.ch> <19981008214451.07950@follo.net> Organization: University of Oslo, Department of Informatics X-url: http://www.stud.ifi.uio.no/~dag-erli/ X-other-addresses: 'finger dag-erli@ifi.uio.no' for a list X-disclaimer-1: The views expressed in this article are mine alone, and do X-disclaimer-2: not necessarily coincide with those of any organisation or X-disclaimer-3: company with which I am or have been affiliated. X-Stop-Spam: http://www.cauce.org/ From: dag-erli@ifi.uio.no (Dag-Erling C. =?iso-8859-1?Q?Sm=F8rgrav?= ) Date: 08 Oct 1998 22:57:06 +0200 In-Reply-To: Eivind Eklund's message of "Thu, 8 Oct 1998 21:44:51 +0200" Message-ID: Lines: 26 X-Mailer: Gnus v5.5/Emacs 19.34 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by hub.freebsd.org id OAA20434 Sender: owner-freebsd-chat@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Eivind Eklund writes: > On Thu, Oct 08, 1998 at 09:19:59PM +0200, Andre Oppermann wrote: > > Eivind Eklund wrote: > > > On Wed, Oct 07, 1998 at 12:10:45PM -0700, Reginald Perry wrote: > > > > So are you saying that you dont think that the network was saturated? > > > Yes. 27Mb/s does not saturate a 100Mbit NIC, and 27Mb/s were > > > (according to the author) what they got. > > Did you say they used DELL boxes? I thought with DELL you'll get 3c509 > > cards or something like that... > You get either 3C905 or Intel EtherExpress 10/100+. They'd used Intel > Etherexpresses. On a good day, my Etherexpress NICs (connected with a crossover Cat 5 UTP cable) max out at about 23 Mbps, as measured by 'netstat -i 1' while running 'rsh luna cat /dev/zero > /dev/null' from Niobe. Luna is a P133 and Niobe is a P166. Running top on Luna shows 40% CPU usage (most of it in cat, which spends a lot of time in sbwait) (running in 100baseTX full duplex of course) One is entitled to wonder where the bottleneck is - in the adapter, in the bus or CPU, in the driver, or in some other part of the kernel. DES -- Dag-Erling Smørgrav - dag-erli@ifi.uio.no To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message