Date: Sat, 6 Mar 2004 21:26:14 -0400 (AST) From: "Marc G. Fournier" <scrappy@hub.org> To: Mike Tancsa <mike@sentex.net> Cc: freebsd-stable@freebsd.org Subject: Re: Odd network issue ... *very* slow scp between two servers Message-ID: <20040306212430.F13247@ganymede.hub.org> In-Reply-To: <20040306211328.H13247@ganymede.hub.org> References: <20040306130937.N71806@ganymede.hub.org> <20040306210515.M13247@ganymede.hub.org> <20040306211328.H13247@ganymede.hub.org>
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Wow, okay, switching to 10baseT/UTP, full duplex is atrocious too: 1038785 bytes received in 74.30 seconds (13.65 KB/s) So, bug with full-duplex on the em devices? Switching to 100baseTX, half-duplex gives me an error though, but seems to work: neptune# ifconfig em0 media 100baseTX mediaopt half-duplex ifconfig: SIOCSIFMEDIA: Device not configured yet: media: Ethernet 100baseTX (100baseTX <half-duplex>) On Sat, 6 Mar 2004, Marc G. Fournier wrote: > > 'k, I'm blind to start with ... I take it that this is the significant > part of the output: > > Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll > em0 1500 <Link#1> 00:07:e9:05:1b:2e 760865424 58003349 775965555 0 0 > > where the fxp devices don't show any Ierrs? That works out to be ~7% ... > > Dropping it to 10baseT/UTP appears to improve things by 10x: > > 1038785 bytes received in 6.86 seconds (147.89 KB/s) > > And drop'ng it to 100baseTX, half-duplex makes an even larger difference: > > 1038785 bytes received in 0.49 seconds (2.01 MB/s) > 1038785 bytes received in 0.14 seconds (6.89 MB/s) > > The fxp devices are all running 100baseTX, full-duplex, and doing 10MB/s > between each other ... > > > ---- > Marc G. Fournier Hub.Org Networking Services (http://www.hub.org) > Email: scrappy@hub.org Yahoo!: yscrappy ICQ: 7615664 > ---- Marc G. Fournier Hub.Org Networking Services (http://www.hub.org) Email: scrappy@hub.org Yahoo!: yscrappy ICQ: 7615664
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