Re: [Intel-gfx] [PATCH] drm/i915: Restore waitboost credit to the synchronous waiter

2015-12-08 Thread Eero Tamminen
Hi, On 12/07/2015 07:38 PM, Jesse Barnes wrote: [...] Still wishing we had a good way to benchmark these types of changes across a range of workloads. Eero, have you guys looked at turbo stuff at all yet? Except for this, not really: https://jira01.devtools.intel.com/browse/LCK-2271

Re: [Intel-gfx] [PATCH] drm/i915: Restore waitboost credit to the synchronous waiter

2015-12-07 Thread Jesse Barnes
On 12/01/2015 02:48 PM, Chris Wilson wrote: > Ideally, we want to automagically have the GPU respond to the > instantaneous load by reclocking itself. However, reclocking occurs > relatively slowly, and to the client waiting for a result from the GPU, > too late. To compensate and reduce the

[Intel-gfx] [PATCH] drm/i915: Restore waitboost credit to the synchronous waiter

2015-12-01 Thread Chris Wilson
Ideally, we want to automagically have the GPU respond to the instantaneous load by reclocking itself. However, reclocking occurs relatively slowly, and to the client waiting for a result from the GPU, too late. To compensate and reduce the client latency, we allow the first wait from a client to