From: Bruno Ducrot <ducrot@poupinou.org>
To: Oliver Antwerpen <olli@giesskaennchen.de>
Cc: cpufreq@www.linux.org.uk
Subject: Re: static freq table support for Pentium M Dothan
Date: Wed, 18 Aug 2004 11:44:22 +0200 [thread overview]
Message-ID: <20040818094422.GD29560@poupinou.org> (raw)
In-Reply-To: <412280F0.8090900@giesskaennchen.de>
Hi,
On Tue, Aug 17, 2004 at 10:04:32PM +0000, Oliver Antwerpen wrote:
> I don't really know what to do. Do I have any advantages using
> speedstep-centrino instead of acpi?
You may want BOTH actually. acpi for a more aware power saving idle
loop (you can gather some statistics from /proc/acpi/processor/*/power)
and you may want speedstep-centrino in order to lower voltage (and as a
consequence the frequency of the processor). You should'nt use the acpi
performance stuff because it's achieve the exact same thing than the
speedstep-centrino, but via a call to the BIOS instead to talk directly
to the hardware (in this case, via known MSRs).
Cheers,
--
Bruno Ducrot
-- Which is worse: ignorance or apathy?
-- Don't know. Don't care.
next prev parent reply other threads:[~2004-08-18 9:44 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-17 2:51 static freq table support for Pentium M Dothan Michael Clark
2004-08-17 22:04 ` Oliver Antwerpen
2004-08-18 9:44 ` Bruno Ducrot [this message]
2004-08-18 22:45 ` Jeremy Fitzhardinge
2004-09-08 19:59 ` Stefan Tomanek
2004-09-08 21:31 ` Dominik Brodowski
2004-09-08 21:43 ` Stefan Tomanek
2004-09-08 22:01 ` Dominik Brodowski
2004-09-08 23:07 ` Stefan Tomanek
2004-09-09 7:00 ` Dominik Brodowski
2004-09-09 8:54 ` Stefan Tomanek
2004-09-09 8:58 ` Bruno Ducrot
2004-09-09 15:33 ` Dominik Brodowski
2004-09-09 18:41 ` Stefan Tomanek
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