On Tue, Jul 17, 2012 at 5:59 PM, Cyrille Henry <ch@chnry.net> wrote:
oh, on linux you can't render faster than the screen.
i supposed that it was the same on osX, but i'm may be wrong.
if you can render faster than the screen, then the proposed solution will not work, and i have no other solution, and no explanation for the problem.

GEM is certainly sending the GL commands at whatever rate you set, but I honestly don't know for sure what happens in the GL driver and on the GPU when setting the GEM frame rate higher than VBL sync.  Maybe the extra rendering commands are ignored or maybe not.