Message-ID: <4981A0AC.5030300@msgid.tls.msk.ru>
Date: Thu, 29 Jan 2009 15:27:24 +0300
From: Michael Tokarev <mjt@tls.msk.ru>
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To: Dave Jones <davej@redhat.com>, Xiaoning Ding <dingxn@ymail.com>,
       linux-kernel@vger.kernel.org
Subject: Re: a question about p4_clockmod module on Xeon quad core	processors
References: <603382.20833.qm@web59902.mail.ac4.yahoo.com> <20090128210200.GA19527@redhat.com>
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Dave Jones wrote:
[]
> p4-clockmod doesn't change the processor frequency.

Hmm..  But what it really does, then?
I used it one one machine which had a flaky CPU cooler,
to reduce power consumption during hot summer days.
It worked, and reportedly the frequency varied from
200MHz to the max of 2.4GHz (it's a P4 Xeon).  Now
I wonder why it helped to reduce the temperature and
why the system reported different frequencies...

Thanks!

> Because of common misconceptions like this, the user interface has been removed.


/mjt
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