Date: 08 Oct 1998 22:57:06 +0200 From: dag-erli@ifi.uio.no (Dag-Erling C. =?iso-8859-1?Q?Sm=F8rgrav?= ) To: Eivind Eklund <eivind@yes.no> Cc: Andre Oppermann <oppermann@pipeline.ch>, Reginald Perry <perry@zso.dec.com>, "'Jason C. Wells'" <jcwells@u.washington.edu>, freebsd-chat@FreeBSD.ORG Subject: Re: PC Magazine 10/20/1998 Article about FreeBSD Message-ID: <xzp1zoidb6l.fsf@hrotti.ifi.uio.no> In-Reply-To: Eivind Eklund's message of "Thu, 8 Oct 1998 21:44:51 %2B0200" References: <69CAF7F9AF57D2118D9A0000F881B4DD06BCE9@zsoexc1.zso.dec.com> <69CAF7F9AF57D2118D9A0000F881B4DD02F30D@zsoexc1.zso.dec.com> <19981008153419.04963@follo.net> <361D105F.2E7757CD@pipeline.ch> <19981008214451.07950@follo.net>
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Eivind Eklund <eivind@yes.no> 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
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