From: Jesse Barnes <jbarnes@virtuousgeek.org>
To: Anssi Hannula <anssi.hannula@iki.fi>
Cc: platform-driver-x86@vger.kernel.org, mjg@redhat.com
Subject: Re: [PATCH 2/2] IPS driver: disable CPU turbo
Date: Mon, 28 Feb 2011 11:06:18 -0800 [thread overview]
Message-ID: <20110228110618.0cb19205@jbarnes-desktop> (raw)
In-Reply-To: <4D6BF118.9070003@iki.fi>
On Mon, 28 Feb 2011 21:01:44 +0200
Anssi Hannula <anssi.hannula@iki.fi> wrote:
> On 05.10.2010 21:26, Jesse Barnes wrote:
> > The undocumented interface we're using for reading CPU power seems to be
> > overreporting power. Until we figure out how to correct it, disable CPU
> > turbo and power reporting to be safe. This will keep the CPU within default
> > limits and still allow us to increase GPU frequency as needed.
>
> Any news on this one, or is it expected to be disabled indefinitely?
No news, you could add a module param to force it on or revert this
patch, then run some comparisons and see what kind of perf difference
you see between enabled/disabled.
--
Jesse Barnes, Intel Open Source Technology Center
prev parent reply other threads:[~2011-02-28 19:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-05 18:26 [PATCH 1/2] IPS driver: apply BIOS provided CPU limit if different from default Jesse Barnes
2010-10-05 18:26 ` [PATCH 2/2] IPS driver: disable CPU turbo Jesse Barnes
2011-02-28 19:01 ` Anssi Hannula
2011-02-28 19:06 ` Jesse Barnes [this message]
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