Date: Wed, 21 Mar 2001 20:55:02 +0100 (MET) From: Helge Oldach <Helge.Oldach@de.origin-it.com> To: conrad@th.physik.uni-bonn.de (Jan Conrad) Cc: bright@wintelcom.net, dillon@earth.backplane.com, gordont@bluemtn.net, rdm@cfcl.com, freebsd-stable@FreeBSD.ORG Subject: Re: NFS performance Message-ID: <200103211955.UAA03416@galaxy.de.cp.philips.com> In-Reply-To: <Pine.BSF.4.33.0103211831270.1867-100000@merlin.th.physik.uni-bonn.de> from Jan Conrad at "Mar 21, 2001 6:33:43 pm"
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Jan Conrad: >client: >Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll >fxp0 1500 <Link#1> 00:02:b3:1f:f8:c5 1901001 0 771611 0 208240 >server: >Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll >fxp0 1500 <Link#1> 00:90:27:1c:f3:79 7157753 0 4648694 0 2661459 Gimme a break. Out of 4648694 output packets you see as many as 2661459 collisions? That's more than 50%, i.e. for about every second packet that you are sending you get a collision! You very clearly have a collision problem. I bet that the switch is at full-duplex while you're at half. Try changing the mediaopt setting of your NIC. Helge To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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