Re: [PATCH] drm/i915: Use PM QoS to prevent C-state memory starvation of the GPU

Chris Wilson
2010-12-08T16:54:24Z

On Wed, 8 Dec 2010 18:44:41 +0200, Vasily Khoruzhick <anarsoul@gmail.com> wrote:
> On Wednesday 08 December 2010 18:24:35 Chris Wilson wrote:
> > This is just a preliminary attempt to see if this even helps. Obviously
> > some more effort will need to be spent investigating a better choice of
> > latency and when we need to request it, but first: does this help?
>
> Sorry, but it does not. glxgears is still jerky.

I thought we were trying to fix the reported framerate? Try adjusting the
request max latency down from 20 to 1, or even 0.
-Chris

--
Chris Wilson, Intel Open Source Technology Centre