Re: [Intel-gfx] [PATCH 1/3] RFM drm/i915: Boost RPS frequency for CPU stalls

2013-08-22 Thread Jesse Barnes
Mengmeng and/or Ouping, can you collect full power & perf numbers of this patchset compared to the current mainline without these patches applied? Just running our existing set of benchmarks and tests would be a good start. Thanks, Jesse On Thu, 22 Aug 2013 03:40:56 +0100 Chris Wilson wrote: >

[Intel-gfx] [PATCH 1/3] RFM drm/i915: Boost RPS frequency for CPU stalls

2013-08-21 Thread Chris Wilson
If we encounter a situation where the CPU blocks waiting for results from the GPU, give the GPU a kick to boost its the frequency. This should work to reduce user interface stalls and to quickly promote mesa to high frequencies - but the cost is that our requested frequency stalls high (as we do n