From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756423AbXFMUVK (ORCPT ); Wed, 13 Jun 2007 16:21:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752373AbXFMUUx (ORCPT ); Wed, 13 Jun 2007 16:20:53 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:3740 "EHLO spitz.ucw.cz" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751541AbXFMUUw (ORCPT ); Wed, 13 Jun 2007 16:20:52 -0400 Date: Wed, 13 Jun 2007 14:56:55 +0000 From: Pavel Machek To: Tejun Heo Cc: Arjan van de Ven , Kristen Carlson Accardi , jeff@garzik.org, james.bottomley@steeleye.com, linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, Jens Axboe Subject: Re: [patch 0/3] AHCI Link Power Management Message-ID: <20070613145654.GB8053@ucw.cz> References: <20070611114600.7fca1c24.kristen.c.accardi@intel.com> <466DFDB5.9030901@gmail.com> <466E0642.5020506@linux.intel.com> <466E1D51.9070007@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <466E1D51.9070007@gmail.com> User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi! > >> I'm not sure about this. We need better PM framework to support > >> powersaving in other controllers and some ahcis don't save much > >> when only link power management is used, > > > > do you have data to support this? > > Yeah, it was some Lenovo notebook. Pavel is more familiar with the > hardware. Pavel, what was the notebook which didn't save much power > with standard SATA power save but needed port to be completely turned off? Uhuh, now I understand why Arjan wanted me to test. But I have same hw as Kristen, so I assume there must have been something wrong with the old tests. Sorry for confusion. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html