From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andi Kleen Subject: Re: what is throttling? Date: Wed, 6 Oct 2004 16:23:58 +0200 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <20041006142358.GO17247@wotan.suse.de> References: <20041006090408.GA17104@rap.rap.dk> <20041006114935.GF17247@wotan.suse.de> <20041006141245.GB6785@poupinou.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20041006141245.GB6785-kk6yZipjEM5g9hUCZPvPmw@public.gmane.org> Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Bruno Ducrot Cc: Andi Kleen , acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org On Wed, Oct 06, 2004 at 04:12:45PM +0200, Bruno Ducrot wrote: > On Wed, Oct 06, 2004 at 01:49:35PM +0200, Andi Kleen wrote: > > AMD CPUs don't have it afaik. > > ducrot@poupoune:~$ cat /proc/acpi/processor/CPU1/throttling > state count: 8 > active state: T0 > states: > *T0: 00% > T1: 12% > T2: 25% > T3: 37% > T4: 50% > T5: 62% > T6: 75% > T7: 87% > > though I don't see real usefullness for throttling anyway, so > I've not tested if that works. Indeed. It seems to work different from the Intel implementation though, it doesn't skip clocks. It's only useful to prevent your machine from melting when the fan fails or someone misdesigns the cooling setup. -Andi ------------------------------------------------------- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more http://productguide.itmanagersjournal.com/guidepromo.tmpl