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From: "Dieter Nützel" <>
To: Arjan van de Ven <>
Cc: Linux Kernel List <>,
	Linux ACPI List <>
Subject: Re: Changing CPU Speed while running Linux
Date: Thu, 14 Jun 2001 00:23:07 +0200	[thread overview]
Message-ID: <> (raw)

Arjan van de Ven wrote:
> Sven Geggus wrote:
> >
> > Hi there,
> >
> > on my Elan410 based System it is very easy to change the CPU clock
> > speed by means od two outb commands.
> >
> > I was wondering, if it does some harm to the Kernel if the CPU is
> > reprogrammed using a different CPU clock speed, while the system is up and
> > running.
> I have a module for the K6 PowerNow which allows you to do
> echo 450 > /proc/sys/cpu/0/frequency
> and does the right thing wrt udelay / bogomips etc..
> I can dig it out if you want.. sounds like this should be a more generic
> thing.

Yes, please.

After (all) Athlon 4/MT (Palomino)  and Duron mobile feature PowerNow! it 
should be usefull for more and more people.


BTW	I think there are only a "few" K6-2+/K6-III+ out ;-)
	But PowerNow! is nice stuff. I had an eye on an 1 GHz Palomino
	at CeBIT '2001.
Dieter Nützel
Graduate Student, Computer Science

University of Hamburg
Department of Computer Science
Cognitive Systems Group
Vogt-Kölln-Straße 30
D-22527 Hamburg, Germany


             reply	other threads:[~2001-06-13 22:14 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-06-13 22:23 Dieter Nützel [this message]
  -- strict thread matches above, loose matches on Subject: below --
2001-06-13 12:35 Sven Geggus
2001-06-13 13:21 ` Arjan van de Ven
2001-06-14 13:12   ` Pavel Machek
2001-06-16 10:46     ` arjan
2001-06-16 13:23     ` Alan Cox
2001-06-16 13:56       ` Ian Stirling
2001-06-13 13:41 ` Magnus Sandberg
2001-06-13 13:49   ` Dave Jones

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