Date: Thu, 03 Jan 2002 20:42:24 -0500 From: Sergey Babkin <babkin@bellatlantic.net> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: Josef Karthauser <joe@tao.org.uk>, Alexander Haderer <alexander.haderer@charite.de>, freebsd-hackers@FreeBSD.ORG Subject: Re: FreeBSD performing worse than Linux? Message-ID: <3C350880.ACC0E6D@bellatlantic.net> 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> <200112301917.fBUJHdm13120@apollo.backplane.com>
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Matthew Dillon wrote: > > : > :No switching infrastructure. It's a 10mb/s half duplex ethernet > :network, with two hubs between the two machines. > : > :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. Or maybe just with better hubs. I've seen cheap hubs that started losing packets when the load went above ~5MB/s. -SB To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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