From mboxrd@z Thu Jan 1 00:00:00 1970 From: Glauber Costa Subject: Re: [PATCH 4/4] Add a timer to allow the separation of consigned from steal time. Date: Wed, 6 Feb 2013 18:36:52 +0400 Message-ID: <51126A84.5050005@parallels.com> References: <20130205214818.4615.12937.stgit@lambeau> <20130205214941.4615.29852.stgit@lambeau> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: , , , , , , , To: Michael Wolf Return-path: Received: from mx2.parallels.com ([64.131.90.16]:40069 "EHLO mx2.parallels.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752075Ab3BFOgf (ORCPT ); Wed, 6 Feb 2013 09:36:35 -0500 In-Reply-To: <20130205214941.4615.29852.stgit@lambeau> Sender: kvm-owner@vger.kernel.org List-ID: On 02/06/2013 01:49 AM, Michael Wolf wrote: > Add a helper routine to scheduler/core.c to allow the kvm module > to retrieve the cpu hardlimit settings. The values will be used > to set up a timer that is used to separate the consigned from the > steal time. Sorry: What is the business of a timer in here? Whenever we read steal time, we know how much time has passed and with that information we can know the entitlement for the period. This breaks if we suspend, but we know that we suspended, so this is not a problem. Everything bigger the entitlement is steal time.