Re: [Intel-gfx] [PATCH v2] drm/i915: Queue page flip work via a low latency, unbound workqueue

2016-09-15 Thread Imre Deak
On Thu, 2016-09-15 at 10:44 +0200, Maarten Lankhorst wrote: > Op 14-09-16 om 19:07 schreef Imre Deak: > > While user space has control over the scheduling priority of its > > page > > flipping thread, the corresponding work the driver schedules for > > MMIO > > flips always runs from the generic

Re: [Intel-gfx] [PATCH v2] drm/i915: Queue page flip work via a low latency, unbound workqueue

2016-09-15 Thread Maarten Lankhorst
Op 14-09-16 om 19:07 schreef Imre Deak: > While user space has control over the scheduling priority of its page > flipping thread, the corresponding work the driver schedules for MMIO > flips always runs from the generic system workqueue which has some > scheduling overhead due it being CPU bound.

[Intel-gfx] [PATCH v2] drm/i915: Queue page flip work via a low latency, unbound workqueue

2016-09-14 Thread Imre Deak
While user space has control over the scheduling priority of its page flipping thread, the corresponding work the driver schedules for MMIO flips always runs from the generic system workqueue which has some scheduling overhead due it being CPU bound. This would hinder an application that wants