On Wed, Mar 11, 2015 at 10:30:13AM +0000, Chris Wilson wrote: > On Wed, Mar 11, 2015 at 11:13:59AM +0100, Daniel Vetter wrote: > > Also do you have microbenchmark numbers for something midly ridiculous > > like a loop of very short batches (enough ofc to cause a bit of delay) and > > immediately stalling for them? It's definitely an awesome idea given that > > every other lock and sync primitive does it too. > > I guess I have > an exciting morning of letting synmark run on one machine in various > configs. So looking at the basics on HSW:gt3e, comparing mesa + throttle improvements and this patch, we see a consistent improvement throughout the synmark suite, of anything between 4 - 16%. That is actually reassuring as one of my main worries is that this patch will acerbate fallout from thermal throttling. However, a quick look at a few games suggests that any improvement here is well into the noise, if any. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
