Re: [Intel-gfx] [PATCH v4] drm/i915: Optimistically spin for the request completion

2015-03-23 Thread Chris Wilson
On Mon, Mar 23, 2015 at 09:31:38AM +0100, Daniel Vetter wrote: > On Fri, Mar 20, 2015 at 10:59:50PM +, Chris Wilson wrote: > > On Fri, Mar 20, 2015 at 04:19:02PM +, Chris Wilson wrote: > > > I guess one test would be to see how many 1x1 [xN overdraw, say 1x1 > > > Window, but rendering inte

Re: [Intel-gfx] [PATCH v4] drm/i915: Optimistically spin for the request completion

2015-03-23 Thread Daniel Vetter
On Fri, Mar 20, 2015 at 10:59:50PM +, Chris Wilson wrote: > On Fri, Mar 20, 2015 at 04:19:02PM +, Chris Wilson wrote: > > I guess one test would be to see how many 1x1 [xN overdraw, say 1x1 > > Window, but rendering internally at 1080p] clients we can run in > > parallel whilst hitting 60fp

Re: [Intel-gfx] [PATCH v4] drm/i915: Optimistically spin for the request completion

2015-03-23 Thread Daniel Vetter
On Fri, Mar 20, 2015 at 04:31:29PM +, Tvrtko Ursulin wrote: > > On 03/20/2015 04:19 PM, Chris Wilson wrote: > >On Fri, Mar 20, 2015 at 04:01:52PM +, Tvrtko Ursulin wrote: > >> > >>On 03/20/2015 02:36 PM, Chris Wilson wrote: > >>>This provides a nice boost to mesa in swap bound scenarios (a

Re: [Intel-gfx] [PATCH v4] drm/i915: Optimistically spin for the request completion

2015-03-21 Thread Chris Wilson
On Fri, Mar 20, 2015 at 10:59:50PM +, Chris Wilson wrote: > On Fri, Mar 20, 2015 at 04:19:02PM +, Chris Wilson wrote: > > I guess one test would be to see how many 1x1 [xN overdraw, say 1x1 > > Window, but rendering internally at 1080p] clients we can run in > > parallel whilst hitting 60fp

Re: [Intel-gfx] [PATCH v4] drm/i915: Optimistically spin for the request completion

2015-03-20 Thread Chris Wilson
On Fri, Mar 20, 2015 at 04:19:02PM +, Chris Wilson wrote: > I guess one test would be to see how many 1x1 [xN overdraw, say 1x1 > Window, but rendering internally at 1080p] clients we can run in > parallel whilst hitting 60fps. And then whether allowing multiple > spinners helps or hinders. I

Re: [Intel-gfx] [PATCH v4] drm/i915: Optimistically spin for the request completion

2015-03-20 Thread shuang . he
Tested-By: PRC QA PRTS (Patch Regression Test System Contact: shuang...@intel.com) Task id: 6019 -Summary- Platform Delta drm-intel-nightly Series Applied PNV -1 274/274

Re: [Intel-gfx] [PATCH v4] drm/i915: Optimistically spin for the request completion

2015-03-20 Thread Tvrtko Ursulin
On 03/20/2015 04:19 PM, Chris Wilson wrote: On Fri, Mar 20, 2015 at 04:01:52PM +, Tvrtko Ursulin wrote: On 03/20/2015 02:36 PM, Chris Wilson wrote: This provides a nice boost to mesa in swap bound scenarios (as mesa throttles itself to the previous frame and given the scenario that will c

Re: [Intel-gfx] [PATCH v4] drm/i915: Optimistically spin for the request completion

2015-03-20 Thread Chris Wilson
On Fri, Mar 20, 2015 at 04:01:52PM +, Tvrtko Ursulin wrote: > > On 03/20/2015 02:36 PM, Chris Wilson wrote: > >This provides a nice boost to mesa in swap bound scenarios (as mesa > >throttles itself to the previous frame and given the scenario that will > >complete shortly). It will also provi

Re: [Intel-gfx] [PATCH v4] drm/i915: Optimistically spin for the request completion

2015-03-20 Thread Tvrtko Ursulin
On 03/20/2015 02:36 PM, Chris Wilson wrote: This provides a nice boost to mesa in swap bound scenarios (as mesa throttles itself to the previous frame and given the scenario that will complete shortly). It will also provide a good boost to systems running with semaphores disabled and so frequent

[Intel-gfx] [PATCH v4] drm/i915: Optimistically spin for the request completion

2015-03-20 Thread Chris Wilson
This provides a nice boost to mesa in swap bound scenarios (as mesa throttles itself to the previous frame and given the scenario that will complete shortly). It will also provide a good boost to systems running with semaphores disabled and so frequently waiting on the GPU as it switches rings. In