Ivy Bridge here, but perhaps it's similar enough.

Quote Originally Posted by przemoli View Post
GtkPerf seam to favour UXA on Gen5/6. Bug or feature ?
With git master and sna gtkperf was 3.x seconds two days ago (before http://www.phoronix.com/scan.php?pag...tem&px=MTMxMjU), but now it's 6+ seconds with kwin opengl compositing. It's probably only temporary.