From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Anholt <eric@anholt.net>
Subject: Re: hsw rps values regress RPS on Macbook Air
Date: Fri, 12 Oct 2012 11:34:08 -0700
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	<20121011125543.4afdb6db@jbarnes-desktop>
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To: Jesse Barnes <jbarnes@virtuousgeek.org>
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Jesse Barnes <jbarnes@virtuousgeek.org> writes:

> On Tue, 09 Oct 2012 13:05:54 -0700
> Eric Anholt <eric@anholt.net> wrote:
>
>> On my new MBA with danvet's drm-intel-next-queued, I'm not getting
>> working RPS.  vblank_mode=3D0 glxgears never ups the frequency, and
>> vblank_mode=3D0 openarena only makes it up to 500mhz.  Reverting
>> 1ee9ae3244c4789f3184c5123f3b2d7e405b3f4c gets the machine to responsive
>> RPS: fully on while the GPU is busy, fully lowered when it's not.
>>=20
>> Since we're always just looking for all-on or all-off and never see
>> workloads that actually want to be somewhere in between, could we please
>> just move to race to idle for RPS?
>
> Ramping to the max freq is fine for benchmarking.  But for normal
> vblank throttled activity, using the lowest freq (assuming it's
> above our nominal freq) that can hit the refresh is the right answer
> from a power perspective.

Have you seen any workloads where a middle frequency value is actually
chosen by the current RPS system?

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