From mboxrd@z Thu Jan 1 00:00:00 1970 From: Glauber de Oliveira Costa Subject: Re: [PATCH] raise tsc clocksource rating Date: Tue, 30 Oct 2007 10:13:59 -0200 Message-ID: <47272007.8000108@redhat.com> References: <11936994092607-git-send-email-gcosta@redhat.com> <200710301339.23628.rusty@rustcorp.com.au> <20071030073736.GA21843@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: Jeremy Fitzhardinge , avi-i/T1Zxg06OZWk0Htik3J/w@public.gmane.org, kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, John Stultz , LKML , --cc-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org To: Ingo Molnar Return-path: In-Reply-To: <20071030073736.GA21843-X9Un+BFzKDI@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: kvm.vger.kernel.org -----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----- ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/