Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759974AbXJLUcX (ORCPT ); Fri, 12 Oct 2007 16:32:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759613AbXJLUcA (ORCPT ); Fri, 12 Oct 2007 16:32:00 -0400 Received: from turing-police.cc.vt.edu ([128.173.14.107]:60937 "EHLO turing-police.cc.vt.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759546AbXJLUb7 (ORCPT ); Fri, 12 Oct 2007 16:31:59 -0400 X-Mailer: exmh version 2.7.2 01/07/2005 with nmh-1.2 To: "Kok, Auke" Cc: 7eggert@gmx.de, Kok@imap.glb.intel.com, prasad@linux.vnet.ibm.com, Lennart Sorensen , Pavel Machek , Arjan van de Ven , kernel list Subject: Re: gigabit ethernet power consumption In-Reply-To: Your message of "Fri, 12 Oct 2007 09:35:15 PDT." <470FA243.6030908@intel.com> From: Valdis.Kletnieks@vt.edu References: <9c8XH-7gs-13@gated-at.bofh.it> <9c9qN-7Rn-19@gated-at.bofh.it> <9cs0n-3Dc-9@gated-at.bofh.it> <9csjH-43E-33@gated-at.bofh.it> <9d4yC-5hT-7@gated-at.bofh.it> <9d7ZJ-2mI-11@gated-at.bofh.it> <470FA243.6030908@intel.com> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1192221016_3255P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Fri, 12 Oct 2007 16:30:16 -0400 Message-ID: <12419.1192221016@turing-police.cc.vt.edu> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1122 Lines: 32 --==_Exmh_1192221016_3255P Content-Type: text/plain; charset=us-ascii On Fri, 12 Oct 2007 09:35:15 PDT, "Kok, Auke" said: > > How much power does a non-connected NIC consume, and can you save power > > by forcing 10 MBit until a link is detected (doubling negotiation time)? > > no, the PHY consumes a minimal amount of energy when not connected, regardless of > whether it is advertising 10, 100 or 1000mbit. Is that true for essentially all the chipsets we support (or at least "the vast majority of the ones currently found in common machines")? --==_Exmh_1192221016_3255P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Exmh version 2.5 07/13/2001 iD8DBQFHD9lYcC3lWbTT17ARAir0AJ9QgMh17zxgAOlw6CEEIIo85khbagCgz5RK bj8BhEwtu7964WSHpKq1qv4= =lQmN -----END PGP SIGNATURE----- --==_Exmh_1192221016_3255P-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/