From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261229AbVGDPay (ORCPT ); Mon, 4 Jul 2005 11:30:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261165AbVGDPax (ORCPT ); Mon, 4 Jul 2005 11:30:53 -0400 Received: from [212.76.81.218] ([212.76.81.218]:63492 "EHLO raad.intranet") by vger.kernel.org with ESMTP id S261229AbVGDPaq (ORCPT ); Mon, 4 Jul 2005 11:30:46 -0400 Message-Id: <200507041530.SAA02324@raad.intranet> From: "Al Boldi" To: "'Bartlomiej Zolnierkiewicz'" Cc: "'Linus Torvalds'" , , Subject: RE: [git patches] IDE update Date: Mon, 4 Jul 2005 18:30:09 +0300 MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook, Build 11.0.5510 In-Reply-To: <58cb370e05070405302d47fdfd@mail.gmail.com> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Thread-Index: AcWAk7es3bA6Pg3KQhizDlwmtVZptQAGTDvQ Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Bartlomiej Zolnierkiewicz wrote: { What is the "int/dma problem"? } Hdparm -tT gives 38mb/s in 2.4.31 Cat /dev/hda > /dev/null gives 2% user 33% sys 65% idle Hdparm -tT gives 28mb/s in 2.6.12 Cat /dev/hda > /dev/null gives 2% user 25% sys 0% idle 73% IOWAIT It feels like DMA is not being applied properly in 2.6.12. Your comments please. Thanks!