http://bugzilla.kernel.org/show_bug.cgi?id=15293
--- Comment #29 from Michał Witkowski <ne...@o2.pl> 2010-02-28 16:24:11 --- (In reply to comment #25) > I vote for NOTOURBUG too. > > Maybe ddx could be a bit better optimized for XGetSubImage that flash is using > but in end we can't get it perform well enough anyway without modifying the > blob. > > So what exactly is happening to slow down here: > > -Flash is playing the video to vram. > -Flash calls XGetSubImage multiple times per frame to read back the whole > video. > -XGetSubImage tries to copy data from VRAM to system memory but there seems to > be huge latency for CPU to read the data that was just written by GPU. > > Hack patch: http://www.youtube.com/watch?v=JLkGGNbBJeI ;) Right. And what about the problem with in-Firefox videos that don't use flash? I.e. comment #22? That also is miserably slow in KMS. Also, if this bug gets NOTOURBUGged it would mean that flash video will be terribly slow for all radeon KMS users, right? http://xkcd.com/619/ comes to mind ;) -- Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
