From: Andi Kleen <ak-l3A5Bk7waGM@public.gmane.org>
To: Keld J?rn Simonsen <keld-6PR53cSIHaE@public.gmane.org>
Cc: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: what is throttling?
Date: Wed, 6 Oct 2004 13:49:35 +0200 [thread overview]
Message-ID: <20041006114935.GF17247@wotan.suse.de> (raw)
In-Reply-To: <20041006090408.GA17104-EittdKFJ/bZ/SzgSGea1oA@public.gmane.org>
On Wed, Oct 06, 2004 at 11:04:08AM +0200, Keld J?rn Simonsen wrote:
> Hi!
>
> I have googled around for a couple of hours to find out precisely what
> throttling means. I did it before and found some useful information, but
> this time I did not find the relevant data.
>
> I would like to find out, which state precisely that the CPU enters when
> throttling. Maybe it is different from CPU to CPU. Specifically I would
> like to know if the CPU is completely powered off, my recollection of
> some information I have seen earlier is that this may be the case.
On Intel CPUs Throttling means that the CPU skips each other
(or more) clock. This is quite slow, but only done to get
the temperature down.
AMD CPUs don't have it afaik.
-Andi
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next prev parent reply other threads:[~2004-10-06 11:49 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-06 9:04 what is throttling? Keld Jørn Simonsen
[not found] ` <20041006090408.GA17104-EittdKFJ/bZ/SzgSGea1oA@public.gmane.org>
2004-10-06 10:05 ` Dominik Brodowski
2004-10-06 11:49 ` Andi Kleen [this message]
[not found] ` <20041006114935.GF17247-B4tOwbsTzaBolqkO4TVVkw@public.gmane.org>
2004-10-06 13:21 ` Ville Syrjälä
2004-10-06 14:12 ` Bruno Ducrot
[not found] ` <20041006141245.GB6785-kk6yZipjEM5g9hUCZPvPmw@public.gmane.org>
2004-10-06 14:23 ` Andi Kleen
[not found] ` <20041006142358.GO17247-B4tOwbsTzaBolqkO4TVVkw@public.gmane.org>
2004-10-06 15:56 ` Bruno Ducrot
2004-10-07 14:54 ` Anil Mamede
[not found] ` <4165588F.8000109-aHmAgkVUFT6Joy8PIJZ9VA@public.gmane.org>
2004-10-07 13:43 ` Dominik Brodowski
[not found] ` <20041007134321.GA26345-X3ehHDuj6sIIGcDfoQAp7BvVK+yQ3ZXh@public.gmane.org>
2004-10-07 15:38 ` Anil Mamede
[not found] ` <416562FB.2060507-aHmAgkVUFT6Joy8PIJZ9VA@public.gmane.org>
2004-10-07 14:32 ` Dominik Brodowski
2004-10-07 15:20 ` Andi Kleen
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