Re: [Intel-gfx] [PATCH 10/11] drm/i915: Use a preemption timeout to enforce interactivity

2018-03-27 Thread Tvrtko Ursulin
On 27/03/2018 09:39, Chris Wilson wrote: Quoting Tvrtko Ursulin (2018-03-27 09:35:17) On 26/03/2018 12:50, Chris Wilson wrote: Use a liberal timeout of 20ms to ensure that the rendering for an interactive pageflip is started in a timely fashion, and that user interaction is not blocked by

Re: [Intel-gfx] [PATCH 10/11] drm/i915: Use a preemption timeout to enforce interactivity

2018-03-27 Thread Chris Wilson
Quoting Tvrtko Ursulin (2018-03-27 09:35:17) > > On 26/03/2018 12:50, Chris Wilson wrote: > > Use a liberal timeout of 20ms to ensure that the rendering for an > > interactive pageflip is started in a timely fashion, and that > > user interaction is not blocked by GPU, or CPU, hogs. This is at

Re: [Intel-gfx] [PATCH 10/11] drm/i915: Use a preemption timeout to enforce interactivity

2018-03-27 Thread Tvrtko Ursulin
On 26/03/2018 12:50, Chris Wilson wrote: Use a liberal timeout of 20ms to ensure that the rendering for an interactive pageflip is started in a timely fashion, and that user interaction is not blocked by GPU, or CPU, hogs. This is at the cost of resetting whoever was blocking the preemption,