https://bugs.freedesktop.org/show_bug.cgi?id=28114
--- Comment #10 from Michel Dänzer <[email protected]> 2010-05-18 08:34:04 PDT --- (In reply to comment #9) > I realy don't know what is real problem because the Attila's patch > that fixes the problem is practicaly moving the XV buffer to VRAM that > should be very slow for everyone. Actually it seems rather unusually slow on your system. Even this PowerBook (which doesn't even have write combining) manages more than 100 MB/s for CPU writes to VRAM. > I can later today upload a test application to see how fast memory access is > to > VRAM. But I still don't understand why GPU reading from GTT is very slow for > X1300 (laptop card?). I'm not sure either, but I guess the bicubic filtering could require quite a lot of bandwidth for texture sampling. -- Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. _______________________________________________ xorg-driver-ati mailing list [email protected] http://lists.x.org/mailman/listinfo/xorg-driver-ati
