Arch Linux

b9anders

Member

Registered: 2007-11-07

Posts: 691

Anyone getting any results with uxa?

I updated my xorg and intel stack to the the newest and shiniest out there to try and out the new uxa acceleration. Have to say, so far I am underwhelmed. Performance with the 2.5 intel driver and xorgserver 1.6 is better than current in arch but it still falls a fair bit short of what I have with the 2.3 driver and xorgserver 1.4.

has anyone experienced the 'blazing speed' the uxa acceleration is supposed to bring? I'm puzzled as to why performance has regressed so much with GEM over the old tungsten management, when it was supposed to be easily superior to it.

fijam

Member

Registered: 2009-02-03

Posts: 244

Website

Re: Anyone getting any results with uxa?

It would be helpful if you also mentioned your hardware. On pre-965 hardware tiling is not yet supported [1]. Patches are being merged into git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel.git you also might want to follow intel-gfx mailing list [2]. I can only hope it will make it in time for 2.6.29.

Performance was not the only reason GEM was created. For some insight I recommend Keith Packard's talk at FOSDEM [3]. Hopefully performance regressions will be ironed out soon.

[1]http://www.virtuousgeek.org/blog/index. … and_tiling
[2]http://lists.freedesktop.org/archives/intel-gfx
[3]http://www.phoronix.com/scan.php?page=a … ld_x&num=1

b9anders

Member

Registered: 2007-11-07

Posts: 691

Re: Anyone getting any results with uxa?

I am on a Intel GMA X3100 card, so it's a gm965 chipset.

Thanks for the links though. Looks interesting.