Date: Thu, 16 Sep 2004 08:34:52 -0600 From: Gary Aitken <garya@dreamchaser.org> To: RYAN vAN GINNEKEN <maillist@computerking.ca> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: packet pass through vs ftp -- performance weirdity Message-ID: <4149A48C.6020301@dreamchaser.org> In-Reply-To: <414953EA.5000707@computerking.ca> References: <414933EF.2050404@dreamchaser.org> <414953EA.5000707@computerking.ca>
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RYAN vAN GINNEKEN wrote: > Happened to me once needed to set the the speed of the nic card in > rc.conf can not remember how to do it but it is in the man rc.conf page > and solved my similar problem. Looks something like this if i can recall > > ifconfig_xl0="inet 209.155.173.22 something about manually setting the > speed and mode of the card " > > for me it had to do with the card not negotiating it parameters properly > and i had to beat it into submission with manual overrides. glanced > through the rc.conf man page but it is to long for me deal with right > now the setting are in there somewhere. This seems highly unlikely, since the same hardware is being used for the fast case: Fast dsl line -- NIC -- FreeBSD -- NIC -- 10MB ethernet -- NIC -- NT Slow FreeBSD -- NIC -- 10MB ethernet -- NIC -- NT Is this similar to the case you experienced, or was your network connection to the outside world via a different nic interface? Gary > Gary Aitken wrote: > >> I'm seeing some weird network performance I don't understand. >> >> If I sit at an NT box and using a web browser, go through my fbsd 4.10 >> firewall to someplace out in the world through a slow dsl connection, >> I get download speeds of 20KB - 45KB/sec, pretty much the max my DSL >> connection can deliver. >> >> The nt box is connected to the fbsd box over a 10Mb/sec full duplex >> crossover cable for test purposes. >> >> If I ftp (shell window) or use a browser to ftp from the fbsd box >> itself, I see a max speed of something like 8KB/sec. >> >> This makes absolutely no sense to me, given the relative speeds of the >> network connections, which I would have thought was the limiting >> factor. >> >> The fbsd box is a p200, 128M, single 7200rpm 9.4ms seagate ultra scsi >> drive, 10MB/sec negotiated xfr rate. Data used for testing was ~8MB >> file in /var partition, don't know how badly fragmented. >> >> Is passing packets through the firewall and ipfw rules that much >> faster than an ftp access? >> >> Ideas for where to look for what's slowing things down?
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