On Fri, Apr 11, 2014 at 11:00:38AM +0200, Daniel Vetter wrote: > On Thu, Apr 10, 2014 at 08:29:55PM +0000, O'Rourke, Tom wrote: > > >> > Higher RC6 residency is observed using timeout mode instead of EI > > >> > mode. This applies to Broadwell only. > > >> > The difference is particularly noticeable with video playback. > > >> > > > >> > Issue: VIZ-3778 > > >> > Change-Id: I62bb12e21caf19651034826b45cde7f73a80938d > > >> > Signed-off-by: Tom O'Rourke <Tom.O'Rourke@xxxxxxxxx> > > >> > > >> How recent a nightly branch have you used to obtain these results? > > >> Chris just fixed some serious bugs in the gpu booster logic which > > >> would have affected all intermediate workloads. > > >> -Daniel > > > > > >He must not be using nightly if he has any BDW RC6 residency at all. > > > > > [TOR:] Ben is correct. I was testing mostly with a kernel for Android. > > I also tested with Ben's broadwell branch and saw similar improvement. > > Ok I think it'd be good to have this when we actually merge/enable the > final pieces of the bdw rc6 code. Can you please work together with Ben to > make sure this patch isn't lost? > > Or who is shepherding bdw rc6 nowadays? > -Daniel Locally, people are still using my RC6 "workaround." We're waiting on Mika at the moment. I am going to merge this patch to my bdw-rc6/broadwell branches. I think it would be great to get a little more detail under what circumstances this improves residency. We can discuss that internally. -- Ben Widawsky, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
