From: Dominik Brodowski <linux@dominikbrodowski.net>
To: Alex <ambroxa@yahoo.it>
Cc: linux-acpi@vger.kernel.org
Subject: Re: Avoid C2/C3 idle state
Date: Wed, 25 Nov 2009 09:05:37 +0100 [thread overview]
Message-ID: <20091125080537.GA31368@isilmar.linta.de> (raw)
In-Reply-To: <796045.7445.qm@web26501.mail.ukl.yahoo.com>
On Wed, Nov 25, 2009 at 06:53:14AM +0000, Alex wrote:
> --- Mar 24/11/09, Dominik Brodowski <linux@dominikbrodowski.net> ha scritto:
>
> > Da: Dominik Brodowski <linux@dominikbrodowski.net>
> > Oggetto: Re: Avoid C2/C3 idle state
> > A: "Alex" <ambroxa@yahoo.it>
> > Cc: linux-acpi@vger.kernel.org
> > Data: Martedì 24 novembre 2009, 23:29
> > Hey,
> >
> > you can set the maximum C-state to use using the
> > "processor.max_cstate=<value>" parameter. No need to
> > recompile.
>
> Thanks for your kind reply.
>
> A stupid qustion:
> <value> is a numeric value as 1 , 2 , 3 (i.e. processor.max_cstate=1 )
> or is a string like C1 , C2 , C3 (i.e. processor.max_cstate=C1 ) ?
It's the former. I'd suggest you try max_cstate=2 first, as that might save
power, reduce heat and still not interfere with the serial device.
Best,
Dominik
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next prev parent reply other threads:[~2009-11-25 8:05 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-24 21:50 Avoid C2/C3 idle state Alex
2009-11-24 22:29 ` Dominik Brodowski
2009-11-25 6:53 ` Alex
2009-11-25 8:05 ` Dominik Brodowski [this message]
-- strict thread matches above, loose matches on Subject: below --
2009-11-25 12:05 Alex
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