Date: Tue, 18 May 1999 17:57:56 +0100 (BST) From: dave@educentre.com To: FreeBSD-gnats-submit@freebsd.org Subject: kern/11765: performance bug: network devices fxp : de perform Very slowly when both cards are in a single machine Message-ID: <199905181657.RAA18485@www.educentre.com>
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>Number: 11765 >Category: kern >Synopsis: performance bug: network devices fxp & de perform Very slowly when both cards are in a single machine >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Tue May 18 10:00:01 PDT 1999 >Closed-Date: >Last-Modified: >Originator: David Hanney >Release: FreeBSD 3.1-STABLE i386 >Organization: educentre >Environment: FreeBSD www.educentre.com 3.1-STABLE FreeBSD 3.1-STABLE #3: Mon May 17 15:58:26 BST 1999 dave@www.educentre.com:/usr/src/sys/compile/EDUCENTRE i386 >Description: If you have a de network card (Kingston) and an fxp network card (Intel) in a single machine then you can't get more than 14K/s xfer speed down the de network card. >How-To-Repeat: Machine A is multihomed. It has an fxp network card (e.g. used to talk to the net) and a de network card (used to talk to machine B) Machine B is singehomed. It has a de network card used only for talking with machine A. FTP GET on machine B from A (or vice versa) goes at max speed of 14K/s down a short:) length of UTP crossover. both de cards are talking 10baset/utp half duplex >Fix: Swapping the fxp card with machine B's de card (so that each machine contains just one type of card) restores performance to expected levels. >Release-Note: >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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