From owner-freebsd-hackers Tue Dec 16 00:58:29 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id AAA08768 for hackers-outgoing; Tue, 16 Dec 1997 00:58:29 -0800 (PST) (envelope-from owner-freebsd-hackers) Received: from ns2.cetlink.net (root@ns2.cetlink.net [209.54.54.20]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id AAA08758 for ; Tue, 16 Dec 1997 00:58:23 -0800 (PST) (envelope-from jak@cetlink.net) Received: from hot1.auctionfever.com (ts1-cltnc-13.cetlink.net [209.54.58.13]) by ns2.cetlink.net (8.8.5/8.8.5) with SMTP id DAA00369; Tue, 16 Dec 1997 03:58:09 -0500 (EST) From: jak@cetlink.net (John Kelly) To: Mike Smith Cc: Mike Smith , FreeBSD Hackers Subject: Re: 3com 3c509 card Date: Tue, 16 Dec 1997 09:57:47 GMT Message-ID: <34974fcb.31632460@mail.cetlink.net> References: <199712160840.TAA01580@word.smith.net.au> In-Reply-To: <199712160840.TAA01580@word.smith.net.au> X-Mailer: Forte Agent 1.01/16.397 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by hub.freebsd.org id AAA08759 Sender: owner-freebsd-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk On Tue, 16 Dec 1997 19:10:50 +1030, Mike Smith wrote: >> I replaced an NE2000 clone with a SMC Ultra 16, thinking shared memory >> would consume far less CPU than PIO with an NE2000. But it seems to >> be about the same. > >About half. Please don't confuse anecdotal evidence with measured >results. > I tested with an FTP transfer and consumed about 45% CPU in both cases. I wonder if I'm doing something wrong. I have the SMC card set to use zero wait state and my kernel recognizes the memory on the card. I don't know what else I can do to improve it. John