Re: [Intel-gfx] [PATCH] drm/i915: Boost GPU clocks if we miss the pageflip's vblank

2017-08-22 Thread Chris Wilson
Quoting Ville Syrjälä (2017-08-22 18:02:04) > On Mon, Aug 21, 2017 at 04:54:21PM +0100, Chris Wilson wrote: > > Quoting Chris Wilson (2017-08-17 13:37:06) > > > If we miss the current vblank because the gpu was busy, that may cause a > > > jitter as the frame rate temporarily drops. We try to limit

Re: [Intel-gfx] [PATCH] drm/i915: Boost GPU clocks if we miss the pageflip's vblank

2017-08-22 Thread Ville Syrjälä
On Mon, Aug 21, 2017 at 04:54:21PM +0100, Chris Wilson wrote: > Quoting Chris Wilson (2017-08-17 13:37:06) > > If we miss the current vblank because the gpu was busy, that may cause a > > jitter as the frame rate temporarily drops. We try to limit the impact > > of this by then boosting the GPU clo

Re: [Intel-gfx] [PATCH] drm/i915: Boost GPU clocks if we miss the pageflip's vblank

2017-08-22 Thread Chris Wilson
Quoting Szwichtenberg, Radoslaw (2017-08-18 09:50:35) > On Fri, 2017-08-18 at 08:54 +0100, Chris Wilson wrote: > > Quoting Chris Wilson (2017-08-17 13:37:06) > > > If we miss the current vblank because the gpu was busy, that may cause a > > > jitter as the frame rate temporarily drops. We try to li

Re: [Intel-gfx] [PATCH] drm/i915: Boost GPU clocks if we miss the pageflip's vblank

2017-08-21 Thread Chris Wilson
Quoting Chris Wilson (2017-08-17 13:37:06) > If we miss the current vblank because the gpu was busy, that may cause a > jitter as the frame rate temporarily drops. We try to limit the impact > of this by then boosting the GPU clock to deliver the frame as quickly > as possible. Originally done in c

Re: [Intel-gfx] [PATCH] drm/i915: Boost GPU clocks if we miss the pageflip's vblank

2017-08-18 Thread Chris Wilson
Quoting Chris Wilson (2017-08-18 10:30:47) > Quoting Chris Wilson (2017-08-17 13:37:06) > > If we miss the current vblank because the gpu was busy, that may cause a > > jitter as the frame rate temporarily drops. We try to limit the impact > > of this by then boosting the GPU clock to deliver the f

Re: [Intel-gfx] [PATCH] drm/i915: Boost GPU clocks if we miss the pageflip's vblank

2017-08-18 Thread Chris Wilson
Quoting Chris Wilson (2017-08-17 13:37:06) > If we miss the current vblank because the gpu was busy, that may cause a > jitter as the frame rate temporarily drops. We try to limit the impact > of this by then boosting the GPU clock to deliver the frame as quickly > as possible. Originally done in c

Re: [Intel-gfx] [PATCH] drm/i915: Boost GPU clocks if we miss the pageflip's vblank

2017-08-18 Thread Szwichtenberg, Radoslaw
On Fri, 2017-08-18 at 08:54 +0100, Chris Wilson wrote: > Quoting Chris Wilson (2017-08-17 13:37:06) > > If we miss the current vblank because the gpu was busy, that may cause a > > jitter as the frame rate temporarily drops. We try to limit the impact > > of this by then boosting the GPU clock to d

Re: [Intel-gfx] [PATCH] drm/i915: Boost GPU clocks if we miss the pageflip's vblank

2017-08-18 Thread Chris Wilson
Quoting Chris Wilson (2017-08-17 13:37:06) > If we miss the current vblank because the gpu was busy, that may cause a > jitter as the frame rate temporarily drops. We try to limit the impact > of this by then boosting the GPU clock to deliver the frame as quickly > as possible. Originally done in c

[Intel-gfx] [PATCH] drm/i915: Boost GPU clocks if we miss the pageflip's vblank

2017-08-17 Thread Chris Wilson
If we miss the current vblank because the gpu was busy, that may cause a jitter as the frame rate temporarily drops. We try to limit the impact of this by then boosting the GPU clock to deliver the frame as quickly as possible. Originally done in commit 6ad790c0f5ac ("drm/i915: Boost GPU frequency