Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161088AbXBTX0Y (ORCPT ); Tue, 20 Feb 2007 18:26:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161090AbXBTX0Y (ORCPT ); Tue, 20 Feb 2007 18:26:24 -0500 Received: from tirith.ics.muni.cz ([147.251.4.36]:55206 "EHLO tirith.ics.muni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161088AbXBTX0X (ORCPT ); Tue, 20 Feb 2007 18:26:23 -0500 Date: Wed, 21 Feb 2007 00:26:33 +0100 From: Lukas Hejtmanek To: Jeff Garzik Cc: linux-kernel@vger.kernel.org Subject: Re: [git patches] libata ACPI support Message-ID: <20070220232633.GA3598@mail.muni.cz> References: <20070220214716.GA3690@mail.muni.cz> <45DB74D9.206@garzik.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <45DB74D9.206@garzik.org> X-echelon: NSA, CIA, CI5, MI5, FBI, KGB, BIS, Plutonium, Bin Laden, bomb User-Agent: Mutt/1.5.13 (2006-08-11) X-Muni-Spam-TestIP: 81.31.45.161 X-Greylist: Sender succeeded SMTP AUTH authentication, not delayed by milter-greylist-3.0 (tirith.ics.muni.cz [147.251.4.35]); Wed, 21 Feb 2007 00:26:15 +0100 (CET) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 781 Lines: 20 On Tue, Feb 20, 2007 at 05:23:21PM -0500, Jeff Garzik wrote: > >introducing SATA ACPI does not work for me (I've filled the bug > >report: http://bugzilla.kernel.org/show_bug.cgi?id=8046) beside those error > >messages, IDE performance is decreased. libata.noacpi=1 option works ok but > >the performance is still slightly degraded (about 10%). > > Does performance come back if you also use acpi=off ? It does not. With 2.6.20-git15, hdparm -t /dev/sda says 28MB/s, with 2.6.20, hdparm -t /dev/sda says 32MB/s. -- Luk?? Hejtm?nek - 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/