From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752900AbbATTuJ (ORCPT ); Tue, 20 Jan 2015 14:50:09 -0500 Received: from smtp02.citrix.com ([66.165.176.63]:22286 "EHLO SMTP02.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751479AbbATTuH (ORCPT ); Tue, 20 Jan 2015 14:50:07 -0500 X-IronPort-AV: E=Sophos;i="5.09,436,1418083200"; d="scan'208";a="219937847" Message-ID: <54BEAA9D.5090303@citrix.com> Date: Tue, 20 Jan 2015 19:21:01 +0000 From: David Vrabel User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.2.0 MIME-Version: 1.0 To: Imre Palik , , David Vrabel CC: "Palik, Imre" , , , Ingo Molnar , Anthony Liguori , "H. Peter Anvin" , Boris Ostrovsky , Thomas Gleixner Subject: Re: [Xen-devel] [PATCH] xen-time: decreasing the rating of the xen clocksource below that of the tsc clocksource for dom0's References: <1421136862-15083-1-git-send-email-imrep.amz@gmail.com> In-Reply-To: <1421136862-15083-1-git-send-email-imrep.amz@gmail.com> Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit X-DLP: MIA2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 13/01/15 08:14, Imre Palik wrote: > From: "Palik, Imre" > > In Dom0's the use of the TSC clocksource (whenever it is stable enough to > be used) instead of the Xen clocksource should not cause any issues, as > Dom0 VMs never live-migrated. The TSC clocksource is somewhat more > efficient than the Xen paravirtualised clocksource, thus it should have > higher rating. > > This patch decreases the rating of the Xen clocksource in Dom0s to 275. > Which is half-way between the rating of the TSC clocksource (300) and the > hpet clocksource (250). Applied to devel/for-linus-3.20, thanks. David