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

[Tvrtko Ursulin]

On 04/24/2015 04:27 PM, 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.

Disabling all kernel debugging options brings this down to ~40us.

Regards,

Tvrtko