From mboxrd@z Thu Jan 1 00:00:00 1970 From: Micha Feigin Subject: Re: Re: [PATCH 2.6] update passive cooling algorithm Date: Fri, 16 Jan 2004 03:14:09 +0200 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <20040116011409.GI9578@luna.mooo.com> References: <20040111211255.GA31105@dominikbrodowski.de> <20040112154611.GH14031@poupinou.org> <20040112173922.GA6154@dominikbrodowski.de> <20040112191122.GK14031@poupinou.org> <20040115121833.GB12963@elf.ucw.cz> <20040115134229.GT14031@poupinou.org> <20040115223425.GC18488@elf.ucw.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20040115223425.GC18488-I/5MKhXcvmPrBKCeMvbIDA@public.gmane.org> Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org On Thu, Jan 15, 2004 at 11:34:25PM +0100, Pavel Machek wrote: > Hi! > > > > > > voltage scaling. It offers a much better (quadratic) saving than clock > > > > > modulation (linear saving). Doing both [and you need to do it, as the CPU > > > > > won't run with fewer volts at the same frequency] gives you cubic savings. > > > > > > > > Yes I know. But does it offer more 'cooling'? > > > > > > Of course. > > > > > > If you eat less power, you create less heat. CPU is basically fancy > > > "turn-electricity-into-heat" device. > > > > > > > I don't like certitudes (I was wondering if better heat dissipation > > in > > Sorry. > > > case of throttling even if more heat generation, but that not the > > case). > > I guess throttling is way too fast (in kHz range, IIRC), so there > should not be any strange effects. > > > > [Have you seen that "first use of PentiumPro in house appliances" > > > picture?] > > > > No, but I do have seen some that have burnt in a production server, > > some years ago... > > There was a picture of four-plate cooker, with PPro in the middle of > each plate. > Pavel Actually, my laptop has a mobile athlon 1500 (1.3G) that now will go to 65C with some abuse (I think I can get it over 70C with some work), but it came faulty originally and happily heated up to 84C when the computer shut down, so you don't need to go as far back as PPro ;-) > -- > When do you have a heart between your knees? > [Johanka's followup: and *two* hearts?] > > > ------------------------------------------------------- > The SF.Net email is sponsored by EclipseCon 2004 > Premiere Conference on Open Tools Development and Integration > See the breadth of Eclipse activity. February 3-5 in Anaheim, CA. > http://www.eclipsecon.org/osdn > _______________________________________________ > Acpi-devel mailing list > Acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org > https://lists.sourceforge.net/lists/listinfo/acpi-devel > ------------------------------------------------------- The SF.Net email is sponsored by EclipseCon 2004 Premiere Conference on Open Tools Development and Integration See the breadth of Eclipse activity. February 3-5 in Anaheim, CA. http://www.eclipsecon.org/osdn