[Intel-gfx] [PATCH] drm/i915: Increase the RC6p threshold.

[Zhang, Ouping]

Hi Jesse,

Do you mean increase /sys/class/drm/card0/power/rc6p_residency_ms from 100000 to 150000, and measure power difference on IVB when system is on idle?

-----Original Message-----
From: Jesse Barnes [mailto:jbarnes at virtuousgeek.org] 
Sent: Wednesday, February 20, 2013 8:16 AM
To: Stéphane Marchesin
Cc: intel-gfx at lists.freedesktop.org; Zhang, Ouping
Subject: Re: [Intel-gfx] [PATCH] drm/i915: Increase the RC6p threshold.

On Tue, 19 Feb 2013 15:53:56 -0800
Stéphane Marchesin <marcheu at chromium.org> wrote:

> On Tue, Jan 29, 2013 at 7:41 PM, Stéphane Marchesin <marcheu at chromium.org>wrote:
> 
> > This increases GEN6_RC6p_THRESHOLD from 100000 to 150000. For some 
> > reason this avoids the gen6_gt_check_fifodbg.isra warnings and 
> > associated GPU lockups, which makes my ivy bridge machine stable.
> >
> >
> Ping?

Seems ok to me.  Ouping, can you measure any power difference between the two values?

Thanks,
--
Jesse Barnes, Intel Open Source Technology Center