> -----Original Message----- > From: Chris Wilson [mailto:chris@xxxxxxxxxxxxxxxxxx] > Sent: Monday, November 02, 2015 5:59 PM > To: Gong, Zhipeng > Cc: intel-gfx@xxxxxxxxxxxxxxxxxxxxx; Rogozhkin, Dmitry V > Subject: Re: [PATCH] RFC drm/i915: Slaughter the thundering > i915_wait_request herd > > On Mon, Nov 02, 2015 at 05:39:54AM +0000, Gong, Zhipeng wrote: > > Chris- > > > > The patch cannot be applied on the latest drm-intel-nightly directly. > > I modified it a little bit to make it applied. > > The patch can help much in HSW, but a little bit in BDW. > > The test is to transcode 26 streams, which creates 244 threads. > > > > CPU util | w/o patch | w/ patch > > ---------------------------------------------------------- > > HSW async 1 | 102% | 61% > > HSW async 5 | 114% | 46% > > BDW async 1 | 116% | 116% > > BDW async 5 | 111% | 107% > > Could I get the perf report for the kernel time? One aspect that I find hard to > believe is that it is not the execbuf/mutex-contention that is the ratelimiting > step. Sure, what command would you like to run with "perf"? -Zhipeng _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
