On Wed, Dec 17, 2014 at 06:02:06PM +0100, Daniel Vetter wrote: > On Wed, Dec 17, 2014 at 03:12:05PM +0000, Chris Wilson wrote: > > On Thu, Jun 12, 2014 at 10:28:55AM +0100, Chris Wilson wrote: > > > Make the assumption that media workloads are not as latency sensitive > > > for __wait_seqno, and that upclocking the GPU does not affect the BLT > > > engine. Under that assumption, we only wait to forcibly upclock the GPU > > > when we are stalling for results from the render pipeline. > > > > For reference, the BLT does depend upon the gpu frequency (and acts as > > a media source of busyness), and to lesser extent the ring/memory bw, > > also controlled as a side-effect of gpu frequency. > > > > Tested on ivb, i7-3720QM > > Since the patch landed already, can you please submit a fixup to add the > || ring == BLT with Deepak on cc so he can review it? I am not overly concerned as I don't have a pure BLT benchmark that isn't quickly ramped to maximum by the more responsive RPS tuning we have in IVB/HSW (and patches exist for VLV). I also prefer the concept of detecting dropped frames for boosting, irrespective of waits. That is the best I have for making gnome-shell snappy. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
