Date: Mon, 20 Dec 1999 19:36:31 +0100 (CET) From: Oliver Fromme <olli@dorifer.heim3.tu-clausthal.de> To: freebsd-stable@FreeBSD.ORG Subject: Re: AMD 3DNow instructions on FreeBSD Message-ID: <199912201836.TAA27912@dorifer.heim3.tu-clausthal.de>
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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)
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