Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756371AbXJ3MNi (ORCPT ); Tue, 30 Oct 2007 08:13:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755713AbXJ3MNZ (ORCPT ); Tue, 30 Oct 2007 08:13:25 -0400 Received: from mx1.redhat.com ([66.187.233.31]:40408 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755552AbXJ3MNY (ORCPT ); Tue, 30 Oct 2007 08:13:24 -0400 Message-ID: <47272007.8000108@redhat.com> Date: Tue, 30 Oct 2007 10:13:59 -0200 From: Glauber de Oliveira Costa User-Agent: Thunderbird 2.0.0.6 (X11/20070811) MIME-Version: 1.0 To: Ingo Molnar CC: Rusty Russell , Thomas Gleixner , LKML , Jeremy Fitzhardinge , --cc@redhat.com, avi@quramnet.com, kvm-devel@lists.sourceforge.net, John Stultz Subject: Re: [PATCH] raise tsc clocksource rating References: <11936994092607-git-send-email-gcosta@redhat.com> <200710301339.23628.rusty@rustcorp.com.au> <20071030073736.GA21843@elte.hu> In-Reply-To: <20071030073736.GA21843@elte.hu> X-Enigmail-Version: 0.95.3 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1282 Lines: 30 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Ingo Molnar escreveu: > * Rusty Russell wrote: > > and just in case it's not obvious: i am not arguing for the inclusion of > the patch, i'm just pointing out the plain fact that in the case where > the TSC _is_ reliable, 5 different clocksource drivers for has obvious > disadvantages. Anyone arguing against that simple point needs his head > examined :) Once we can pass around calibration information from the > host to the guest (which we dont do at the moment) there will be reason > not to use the native clocksource driver in the guest. If you sustain that we cannot have a reliable synchronization test mechanism, neither do I. All this is based in the assumption that a bad tsc will fail such tests. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Remi - http://enigmail.mozdev.org iD8DBQFHJyAHjYI8LaFUWXMRAtYoAJ9l5kNodRLfTsNHDvyioufM7SQzTACfarEy XXq3sDq9uxZ/72hhA46YmgM= =DwN/ -----END PGP SIGNATURE----- - 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/