From owner-freebsd-mobile Tue Sep 14 0: 4:12 1999 Delivered-To: freebsd-mobile@freebsd.org Received: from thoth.mch.sni.de (thoth.mch.sni.de [192.35.17.2]) by hub.freebsd.org (Postfix) with ESMTP id E1F1014D66 for ; Tue, 14 Sep 1999 00:04:09 -0700 (PDT) (envelope-from andre.albsmeier@mchp.siemens.de) X-Envelope-Sender-Is: andre.albsmeier@mchp.siemens.de (at relayer thoth.mch.sni.de) Received: from mail1.siemens.de (mail1.siemens.de [139.23.33.14]) by thoth.mch.sni.de (8.9.3/8.9.3) with ESMTP id JAA02216 for ; Tue, 14 Sep 1999 09:04:07 +0200 (MET DST) Received: from curry.mchp.siemens.de (curry.mchp.siemens.de [139.25.42.7]) by mail1.siemens.de (8.9.3/8.9.3) with ESMTP id JAA15888 for ; Tue, 14 Sep 1999 09:04:04 +0200 (MET DST) Received: (from daemon@localhost) by curry.mchp.siemens.de (8.9.3/8.9.3) id JAA21874 for ; Tue, 14 Sep 1999 09:04:03 +0200 (CEST) Date: Tue, 14 Sep 1999 09:04:02 +0200 From: Andre Albsmeier To: Scott Mitchell Cc: Andre Albsmeier , FreeBSD-mobile@FreeBSD.ORG Subject: Re: Recommendation for a GOOD 100 MBit Ethernet card wanted Message-ID: <19990914090402.A63360@internal> References: <19990905192333.A34635@internal> <19990908064231.A1059@internal> <19990913003148.29772@lungfish.freeserve.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0pre2i In-Reply-To: <19990913003148.29772@lungfish.freeserve.co.uk> Sender: owner-freebsd-mobile@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Mon, 13-Sep-1999 at 00:31:48 +0100, Scott Mitchell wrote: > On Wed, Sep 08, 1999 at 06:42:31AM +0200, Andre Albsmeier wrote: > > On Tue, 07-Sep-1999 at 15:36:03 -0700, Doug White wrote: > > > 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? > > > > PCMCIA :-) Sorry, I thought, this would have been clear since the post > > went to -mobile :-). > > As the author of that comment in the xe driver I should probably step in > here. I could be wrong, but I suspect you'll be SOL finding a 100Mbit > PCMCIA card that gives anything approaching 100Mbit performance. CardBus > would be another story, but support for that is still limited. The 10/100 > PCMCIA cards are nice, in that they'll attach to a mixed or 100Mbit-only > network, and give you a bit of extra bandwidth. I wouldn't expect much > more than that though. Of course, I don't expect 11.8 MBytes/sec as I get when two Intel Etherexpress PCI cards are talking to each other on FreeBSD :-). But I was quite disappointed of the 1.2MB/sec with PCMCIA. However, in the meantime I managed to test the same machine under Crap95 and got similar results. It really seems to be some hardware limit. I also got an Intel Etherexpress 100MBit ISA (yes, ISA) and this one does about 4-5 MBytes/sec under Crap95. Someone else told me that PCMCIA would be faster than ISA so I expected a bit more... > > I'm happy to be corrected on this -- anyone out there have experience with > any other such cards? Me too :-) > > Cheers, > > Scott -Andre To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message