Re: [Intel-gfx] [CI 03/20] drm/i915: Delay queuing hangcheck to wait-request

2016-05-19 Thread Chris Wilson
On Thu, May 19, 2016 at 01:34:55PM +0100, Tvrtko Ursulin wrote: > > On 19/05/16 12:32, Chris Wilson wrote: > >We can forgo queuing the hangcheck from the start of every request to > >until we wait upon a request. This reduces the overhead of every > >request, but may increase the latency of detect

Re: [Intel-gfx] [CI 03/20] drm/i915: Delay queuing hangcheck to wait-request

2016-05-19 Thread Tvrtko Ursulin
On 19/05/16 12:32, Chris Wilson wrote: We can forgo queuing the hangcheck from the start of every request to until we wait upon a request. This reduces the overhead of every request, but may increase the latency of detecting a hang. Howeever, if nothing every waits upon a hang, did it ever hang?

[Intel-gfx] [CI 03/20] drm/i915: Delay queuing hangcheck to wait-request

2016-05-19 Thread Chris Wilson
We can forgo queuing the hangcheck from the start of every request to until we wait upon a request. This reduces the overhead of every request, but may increase the latency of detecting a hang. Howeever, if nothing every waits upon a hang, did it ever hang? It also improves the robustness of the wa