Date: Wed, 12 Feb 2003 09:34:14 +0100 From: Bernd Walter <ticso@cicely9.cicely.de> To: Jarkko Santala <jake@iki.fi> Cc: FreeBSD alpha mailing list <alpha@FreeBSD.ORG> Subject: Re: Why is XFree86 on FreeBSD/Alpha much slower? Message-ID: <20030212083413.GI14706@cicely9.cicely.de> In-Reply-To: <20030212095746.M372-100000@trillian.santala.org> References: <Pine.BSF.4.53.0302112042190.294@tsunami.bsd> <15945.23721.759825.313603@grasshopper.cs.duke.edu> <Pine.BSF.4.53.0302112129370.294@tsunami.bsd> <15945.24538.794799.926276@grasshopper.cs.duke.edu> <Pine.BSF.4.53.0302112147000.294@tsunami.bsd> <20030212095746.M372-100000@trillian.santala.org>
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On Wed, Feb 12, 2003 at 10:03:11AM +0200, Jarkko Santala wrote: > On Tue, 11 Feb 2003, Marco Beishuizen wrote: > > > I always thought that graphics performance was the strengh of the Alpha. > > But it seems to be the opposite. > > Doesn't all this also depend on the software in question, how well it has > been optimized for a certain platform? > > For example, encoding mpeg4 with mplayer's mencoder on my PC164 EV56 > 500MHz does ~2fps, same framerate I had with a PentiumII 333MHz (or > was it 233MHz). Duron 900 with slow SiS chipset and PC133 RAM can do > ~20fps or more. One point is that a PC164 is several years older than a PII. x86 systems were just happy to cache more than 64M RAM that time with a total of 256M, while the PC164 could hold and cache 512M. Another one is that mplayer has x86 optimized assembly code but none for alpha. Finally it very much depends on the compiler quality and options. Compile mplayer with a gcc 3.x plus the right parameters and you will see a higher frame rate. -- B.Walter COSMO-Project http://www.cosmo-project.de ticso@cicely.de Usergroup info@cosmo-project.de To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
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