On Mon, Jan 27, 2014 at 9:33 AM, Chia-I Wu <olvaffe@xxxxxxxxx> wrote: > [Additional comments, and copy Ian and Chad for real] > > On Mon, Jan 27, 2014 at 4:18 PM, Chia-I Wu <olvaffe@xxxxxxxxx> wrote: >> From: Chia-I Wu <olv@xxxxxxxxxx> >> >> The optimization is available on Ivy Bridge and later, and is disabled by >> default. Enabling it helps certain workloads such as GLBenchmark TRex test. > With the patch applied, GLB27_TRex_C24Z16_FixedTimeStep goes from > 99fps to 109fps on my Haswell, and from 60fps to 65fps on my Ivy > Bridge. No piglit regression on both GENs. > > I had a non-recoverable system hang once with the patch applied. I > was not sure if it is because of the patch or drm-intel-nightly (which > I checkout out some weeks ago). I did my tests today against latest > drm-intel-next, and did not have any hang. Since the optimization is > disabled by default, I am curious if there is any caveat before > enabling it. Chad's still missing ;-) Also the hang might just be ppgtt fallout, there's still a few regressions with that. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
