[Intel-gfx] [PATCH i-g-t] kms_atomic: Measure speed of some plane ioctls

[Chris Wilson]

On Fri, Apr 24, 2015 at 04:27:58PM +0100, Tvrtko Ursulin wrote:
> From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> 
> Measures DRM_IOCTL_MODE_SETCRTC and DRM_IOCTL_MODE_SETPLANE as proxy for
> drm_atomic_helper_update_plane if I got it right.
> 
> Discovered some slow cursor updates (1.6ms) so needed something to test
> different kernel configs etc.

Looks good. Can you cook this up into a real test to fail if these
suddenly take a vblank? As well as invent a foolproot regression
benchmark infrastucture :) 
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre