From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266686AbUGLB7C (ORCPT ); Sun, 11 Jul 2004 21:59:02 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266687AbUGLB7C (ORCPT ); Sun, 11 Jul 2004 21:59:02 -0400 Received: from mail011.syd.optusnet.com.au ([211.29.132.65]:25837 "EHLO mail011.syd.optusnet.com.au") by vger.kernel.org with ESMTP id S266686AbUGLB66 (ORCPT ); Sun, 11 Jul 2004 21:58:58 -0400 References: <40F1BA46.9000207@blueyonder.co.uk> <20040711221818.GA30704@outpost.ds9a.nl> <40F1C568.2070503@blueyonder.co.uk> <20040712000137.GA3854@hobbes.itsari.int> <40F1E409.4040200@blueyonder.co.uk> Message-ID: X-Mailer: http://www.courier-mta.org/cone/ From: Con Kolivas To: sboyce@blueyonder.co.uk Cc: Nuno Monteiro , linux-kernel@vger.kernel.org Subject: Re: 2.6.x Scheduler, preemption and responsiveness - puzzlement Date: Mon, 12 Jul 2004 11:57:42 +1000 Mime-Version: 1.0 Content-Type: multipart/signed; boundary="=_mimegpg-pc.kolivas.org-28499-1089597462-0001"; micalg=pgp-sha1; protocol="application/pgp-signature" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org This is a MIME GnuPG-signed message. If you see this text, it means that your E-mail or Usenet software does not support MIME signed messages. --=_mimegpg-pc.kolivas.org-28499-1089597462-0001 Content-Type: text/plain; format=flowed; charset="US-ASCII" Content-Disposition: inline Content-Transfer-Encoding: 7bit Sid Boyce writes: > Nuno Monteiro wrote: > >> >> On 2004.07.11 23:55, Sid Boyce wrote: >> >>> I've been wondering why this is, I can't remember what the BIOS says >>> about the hard drives, from memory it looked OK, I think it was set to >> >> >> >> >>> PCI IDE nVidia Corporation nForce2 IDE (rev a2) >> >> >> >> >>> # CONFIG_BLK_DEV_AMD74XX is not set >> >> >> You don't have the driver for your IDE chipset compiled in. In the >> "ATA/ ATAPI/MFM/RLL support" under "Device Drivers" menu select "AMD >> and nVidia IDE support". Also, you can disable the "Generic PCI IDE >> Chipset Support" and the "VIA82CXXX chipset support" you seem to have >> enabled. >> >> Then you should be able to do DMA, and things will go a lot faster. >> >> >> Hope this helps. >> >> >> >> Nuno > > Oops!, thanks. The previous motherboard used the VIA chipset, so that > got missed when I changed over. > Regards > Sid. DMA disabled is perhaps the most common reason for poor performance under I/O loads. I think some cut down configurations that people have used from their 2.4 installations have missed the appropriate IDE driver. Cheers, Con --=_mimegpg-pc.kolivas.org-28499-1089597462-0001 Content-Type: application/pgp-signature Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQBA8fAWZUg7+tp6mRURAk7MAJ9B1blJeFktSPq5hbXxJ7l8mVFlwQCfXcT8 5FxlBQV4ybwFniJbE7RWs0s= =KE3G -----END PGP SIGNATURE----- --=_mimegpg-pc.kolivas.org-28499-1089597462-0001--