From owner-freebsd-mobile Tue Sep 7 15:39: 2 1999 Delivered-To: freebsd-mobile@freebsd.org Received: from resnet.uoregon.edu (resnet.uoregon.edu [128.223.144.32]) by hub.freebsd.org (Postfix) with ESMTP id F09AA14EBB for ; Tue, 7 Sep 1999 15:38:58 -0700 (PDT) (envelope-from dwhite@resnet.uoregon.edu) Received: from localhost (dwhite@localhost) by resnet.uoregon.edu (8.9.3/8.9.3) with ESMTP id PAA15772; Tue, 7 Sep 1999 15:36:03 -0700 (PDT) (envelope-from dwhite@resnet.uoregon.edu) Date: Tue, 7 Sep 1999 15:36:03 -0700 (PDT) From: Doug White To: Andre Albsmeier Cc: FreeBSD-mobile@FreeBSD.ORG Subject: Re: Recommendation for a GOOD 100 MBit Ethernet card wanted In-Reply-To: <19990905192333.A34635@internal> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-mobile@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Sun, 5 Sep 1999, Andre Albsmeier wrote: > I am looking for a 100MBit Ethernet card for use with 3.2-STABLE which > does perform better than the "Intel EtherExpress(TM) PRO/100 PC C". > Currently, I am using this one with the xe driver, but performance is > rather bad (about 1.2 MBytes/sec). According to if_xe.c, this is due > to the way the card is handled by the driver: > > * Note that the crappy PIO used to get packets on and off the card means that > * you will spend a lot of time in this routine -- I can get my P150 to spend > * 90% of its time servicing interrupts if I really hammer the network. Could > * fix this, but then you'd start dropping/losing packets. The moral of this > * story? If you want good network performance _and_ some cycles left over to > * get your work done, don't buy a Xircom card. Or convince them to tell me > * how to do memory-mapped I/O :) ISA or PCI? Doug White Internet: dwhite@resnet.uoregon.edu | FreeBSD: The Power to Serve http://gladstone.uoregon.edu/~dwhite | www.freebsd.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message