Date: Tue, 16 Sep 1997 18:52:13 -0700 From: David Greenman <dg@root.com> To: Jan Martin Borgersen <borg@cs.unc.edu> Cc: freebsd-hardware@FreeBSD.ORG Subject: Re: 10Mbit Ethernet Adapter Performance Message-ID: <199709170152.SAA24588@implode.root.com> In-Reply-To: Your message of "Tue, 16 Sep 1997 20:18:45 EDT." <199709170018.UAA19721@buzzard.cs.unc.edu>
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>Can anyone point me to any performance evaluations >of 10Mb ISA Ethernet adapters or their device drivers? > >I'm getting some really interesting numbers: > >On an isolated, 100Mb switched Ethernet hub with no >other network traffic, I'm running ttcp to perform >tcp and udp blasts between several 486-66 class >machines with ISA 10Mb Ethernet adapters. > >When machines with generic IBM cards (looks like >a NS 83905A chip) thrown into NE2000 emulation and >using the ed0 driver are transmitting, I'm seeing >network throughputs on the order of 8300 bps. 8300? You mean 8.3Kbps? If that is really the case, then you've got a serious problem. Perhaps your switch is configured for full duplex? Or perhaps you have a bad cable? You should be seeing > 8Mbps. -DG David Greenman Core-team/Principal Architect, The FreeBSD Project
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