From owner-freebsd-stable Mon Dec 20 11:35:39 1999 Delivered-To: freebsd-stable@freebsd.org Received: from uni4nn.gn.iaf.nl (osmium.gn.iaf.nl [193.67.144.12]) by hub.freebsd.org (Postfix) with ESMTP id C498A14BD3 for ; Mon, 20 Dec 1999 11:35:36 -0800 (PST) (envelope-from wilko@yedi.iaf.nl) Received: from yedi.iaf.nl (uucp@localhost) by uni4nn.gn.iaf.nl (8.9.2/8.9.2) with UUCP id TAA26407 for freebsd-stable@FreeBSD.ORG; Mon, 20 Dec 1999 19:37:14 +0100 (MET) Received: (from wilko@localhost) by yedi.iaf.nl (8.9.3/8.9.3) id UAA02429 for freebsd-stable@FreeBSD.ORG; Mon, 20 Dec 1999 20:10:00 +0100 (CET) (envelope-from wilko) Date: Mon, 20 Dec 1999 20:10:00 +0100 From: Wilko Bulte To: freebsd-stable@FreeBSD.ORG Subject: Re: AMD 3DNow instructions on FreeBSD Message-ID: <19991220201000.A2302@yedi.iaf.nl> References: <199912201836.TAA27912@dorifer.heim3.tu-clausthal.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0i In-Reply-To: <199912201836.TAA27912@dorifer.heim3.tu-clausthal.de>; from olli@dorifer.heim3.tu-clausthal.de on Mon, Dec 20, 1999 at 07:36:31PM +0100 X-OS: FreeBSD yedi.iaf.nl 3.3-STABLE FreeBSD 3.3-STABLE X-PGP: finger wilko@freebsd.org Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Mon, Dec 20, 1999 at 07:36:31PM +0100, Oliver Fromme wrote: > 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. Wow! Quite a difference. Not having an Athlon but CPU: AMD-K6(tm) 3D processor (399.81-MHz 586-class CPU) Origin = "AuthenticAMD" Id = 0x58c Stepping = 12 AMD Features=0x80000800 would that also make such a difference on the K6-2? Athlon has different 3Dnow I think ?? -- Wilko Bulte Arnhem, The Netherlands - The FreeBSD Project WWW : http://www.tcja.nl http://www.freebsd.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message