From owner-freebsd-stable Mon Dec 20 10:36:35 1999 Delivered-To: freebsd-stable@freebsd.org Received: from dorifer.heim3.tu-clausthal.de (dorifer.heim3.tu-clausthal.de [139.174.243.252]) by hub.freebsd.org (Postfix) with ESMTP id 4368F14EAE for ; Mon, 20 Dec 1999 10:36:32 -0800 (PST) (envelope-from olli@dorifer.heim3.tu-clausthal.de) Received: (from olli@localhost) by dorifer.heim3.tu-clausthal.de (8.8.8/8.8.8) id TAA27912 for freebsd-stable@FreeBSD.ORG; Mon, 20 Dec 1999 19:36:31 +0100 (CET) (envelope-from olli) Date: Mon, 20 Dec 1999 19:36:31 +0100 (CET) From: Oliver Fromme Message-Id: <199912201836.TAA27912@dorifer.heim3.tu-clausthal.de> To: freebsd-stable@FreeBSD.ORG Subject: Re: AMD 3DNow instructions on FreeBSD Organization: Administration TU Clausthal Reply-To: freebsd-stable@FreeBSD.ORG MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Newsreader: TIN [version 1.2 RZTUC(3) PL2] Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Wilko Bulte wrote in list.freebsd-stable: > On Mon, Dec 20, 1999 at 06:26:48AM +0100, Oliver Fromme wrote: > [...] > > Well, when I added 3DNow support to the Seti@home client, I > > assembled the 3DNow instructions "manually", i.e. I created > > small gas macros for that purpose. It's ugly, but it works. > > Being the curious kind: what speed difference did you observe? About 50%, that is, about 4.5 hours (instead of 9) on average per work unit, on an Athlon-500. And I did only optimize the FFT and didn't touch the rest. With a bit more effort, further improvements would be certainly possible. Regards Oliver -- Oliver Fromme, Leibnizstr. 18/61, 38678 Clausthal, Germany (Info: finger userinfo:olli@dorifer.heim3.tu-clausthal.de) "In jedem Stück Kohle wartet ein Diamant auf seine Geburt" (Terry Pratchett) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message