From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dominik Brodowski Subject: Re: Desktop with DVS Date: Mon, 22 Mar 2004 21:17:33 +0100 Sender: cpufreq-bounces@www.linux.org.uk Message-ID: <20040322201733.GA9780@dominikbrodowski.de> References: <8825450.1079962608@d-128-74-92.bootp.Virginia.EDU> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0055587846==" Return-path: In-Reply-To: <8825450.1079962608@d-128-74-92.bootp.Virginia.EDU> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: cpufreq-bounces+glkc-cpufreq=gmane.org@www.linux.org.uk To: Zhijian Lu Cc: cpufreq@www.linux.org.uk --===============0055587846== Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="TB36FDmn/VVEgNH/" Content-Disposition: inline --TB36FDmn/VVEgNH/ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Mar 22, 2004 at 01:36:48PM -0500, Zhijian Lu wrote: > Hello, >=20 > This may be off the loop. But does anyone know if there are=20 > any desktop computers with dynamic voltage scaling capacity? For x86{,_64}: AFAIK there are several choices:=20 - some x86_64 AMD [server] processors and mainboards support=20 voltage scaling, - there are some special mainboards which support Intel Pentium M processors - the transmeta efficeon CPU supports dynamic voltage scaling without any operating system interaction - maybe some others (VIA) which I've missed. Please note that unless you chose Transmeta CPUs, you also need support from the operating system to _dynamically_ change the frequency. This should be implemented in form of a cpufreq governor; some thus patches have been discussed on this mailing list, none have been in a mergeable state. But you can find them in the archives, if you look hard :-) Dominik --TB36FDmn/VVEgNH/ Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQFAX0ndZ8MDCHJbN8YRAsMVAJ4y5B0RqmmqWndNozNnXdAkFInIvACgg8O2 i9zgP3IDDGh8qJnV57YirAo= =itEL -----END PGP SIGNATURE----- --TB36FDmn/VVEgNH/-- --===============0055587846== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Cpufreq mailing list Cpufreq@www.linux.org.uk http://www.linux.org.uk/mailman/listinfo/cpufreq --===============0055587846==--