Massive power regression going 3.4->3.5

[Chris Wilson]

On Tue, 31 Jul 2012 10:57:10 +0100, James Bottomley <James.Bottomley at HansenPartnership.com> wrote:
> > When did you inspect the debug files? One effect I can imagine is that
> > if your system was previously stuck at RPn and never upclocking the GPU
> > when X starts. The question would then be what is preventing the GPU
> > from reaching its lowest power state again.
> 
> After I logged into an xfce4 session and powertop showed idle had been
> reached.

So it looks like rc6 is functioning as the GPU is downclocked whilst
idle and the rc6 residency counter is increasing. I guess we need a new
tree to bark at.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre