On 20 Nov 2001, Owen Taylor wrote: >Date: 20 Nov 2001 09:39:40 -0500 >From: Owen Taylor <[EMAIL PROTECTED]> >To: Mike A. Harris <[EMAIL PROTECTED]> >Cc: DRI devel list <[EMAIL PROTECTED]>, [EMAIL PROTECTED], > Hui Yu <[EMAIL PROTECTED]> >Content-Type: text/plain; charset=us-ascii >Subject: Re: [Xpert]Radeon 2D accel very slow when DRI is enabled. > > >It's a little suprising to me that removing some (fairly unimportant) >accelerations makes 2D "painfully slow"; except for a few things >like blits and solid area fills, acceleration just doesn't matter >much any more. What applications were you testing with?
konsole, mozilla, any other application that is maximized. You name it. I can watch it draw the whole screen and count out loud. In 1600x1200x24 It takes 1 full second to draw the screen, or a good 3/4 of a second. That is definitely not accelerated. Again, disabling DRI, the MMIO accel makes everything fly. >I've seen DRI slow 2D down to a "crawl", but that's only been >in memory limited situations where there isn't enough remaining >offscreen memory for pixmaps, so drawing to them isn't accelerated >at all. (Not even CopyArea and solid fills.) 64Mb DDR Radeon here, and 1Gb of system RAM. AGP aperture set to 64Mb, and AGP 2x is being used. MTRR not functional on serverworks. >From the diff, it looks like you probably have a 64mb card, so >I doubt that is the case for you. Correct. It is disappointing to have 3D at the expense of 2D performance. I'm hoping I can isolate what needs to be done, and work on it, perhaps with some help from someone familiar with the code more deeply. -- ---------------------------------------------------------------------- Mike A. Harris Shipping/mailing address: OS Systems Engineer 190 Pittsburgh Ave., Sault Ste. Marie, XFree86 maintainer Ontario, Canada, P6C 5B3 Red Hat Inc. Phone: (705)949-2136 http://www.redhat.com ftp://people.redhat.com/mharris Red Hat XFree86 mailing list: [EMAIL PROTECTED] General open IRC discussion: #xfree86 on irc.openprojects.net ---------------------------------------------------------------------- _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
