Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261491AbVACQMv (ORCPT ); Mon, 3 Jan 2005 11:12:51 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261485AbVACQMv (ORCPT ); Mon, 3 Jan 2005 11:12:51 -0500 Received: from faui3es.informatik.uni-erlangen.de ([131.188.33.16]:62684 "EHLO faui3es.informatik.uni-erlangen.de") by vger.kernel.org with ESMTP id S261491AbVACQMm (ORCPT ); Mon, 3 Jan 2005 11:12:42 -0500 Date: Mon, 3 Jan 2005 17:12:34 +0100 From: Martin Waitz To: tony osborne Cc: linux-kernel@vger.kernel.org Subject: Re: Main CPU- I/O CPU interaction Message-ID: <20050103161234.GZ31835@admingilde.org> Mail-Followup-To: tony osborne , linux-kernel@vger.kernel.org References: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="4hmTAJAngH+SZkLl" Content-Disposition: inline In-Reply-To: X-Habeas-SWE-1: winter into spring X-Habeas-SWE-2: brightly anticipated X-Habeas-SWE-3: like Habeas SWE (tm) X-Habeas-SWE-4: Copyright 2002 Habeas (tm) X-Habeas-SWE-5: Sender Warranted Email (SWE) (tm). The sender of this X-Habeas-SWE-6: email in exchange for a license for this Habeas X-Habeas-SWE-7: warrant mark warrants that this is a Habeas Compliant X-Habeas-SWE-8: Message (HCM) and not spam. Please report use of this X-Habeas-SWE-9: mark in spam to . X-PGP-Fingerprint: B21B 5755 9684 5489 7577 001A 8FF1 1AC5 DFE8 0FB2 User-Agent: Mutt/1.5.6+20040907i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1521 Lines: 45 --4hmTAJAngH+SZkLl Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Jan 03, 2005 at 12:44:36AM +0000, tony osborne wrote: > The I/O devices are equipped with dedicated processor to free the main C= PU=20 > from doing the low level I/O operations. However, if i am editing and=20 ^^^^^^^^^^^^^ > updating a big size file and i want to save > it afterwards, i notice my PC getting blocked while saving the file whic= h=20 > theoritically should NOT happen as it is up to the I/O device processor a= nd=20 > not the main CPU to save the data into the disk; the main CPU could switc= h=20 > to another process after giving the high level command -save-to the devic= e=20 ^^^^^^^^^^^^^^^^^^ > processor; so why the main CPU is blocked while saving such big size files --=20 Martin Waitz --4hmTAJAngH+SZkLl Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQFB2W7yj/Eaxd/oD7IRAgt8AJ4mnDnVplLaIOpR/t5ztZf9JYbdNQCcCkwU 5BeC+y1oNF0g7UbcACXqDoQ= =jTKB -----END PGP SIGNATURE----- --4hmTAJAngH+SZkLl-- - 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/