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From: Glauber Costa <glommer@parallels.com>
To: Michael Wolf <mjw@linux.vnet.ibm.com>
Cc: <linux-kernel@vger.kernel.org>, <riel@redhat.com>,
	<gleb@redhat.com>, <kvm@vger.kernel.org>, <peterz@infradead.org>,
	<mtosatti@redhat.com>, <mingo@redhat.com>,
	<anthony@codemonkey.ws>
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	[thread overview]
Message-ID: <51126A84.5050005@parallels.com> (raw)
In-Reply-To: <20130205214941.4615.29852.stgit@lambeau>

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.



  reply	other threads:[~2013-02-06 14:36 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-05 21:49 [PATCH 0/4] Alter steal-time reporting in the guest Michael Wolf
2013-02-05 21:49 ` [PATCH 1/4] Alter the amount of steal time reported by " Michael Wolf
2013-02-05 21:49 ` [PATCH 2/4] Expand the steal time msr to also contain the consigned time Michael Wolf
2013-02-06 21:14   ` Rik van Riel
2013-02-07 14:25     ` Michael Wolf
2013-02-05 21:49 ` [PATCH 3/4] Add the code to send the consigned time from the host to the guest Michael Wolf
2013-02-06 21:18   ` Rik van Riel
2013-02-07 14:26     ` Michael Wolf
2013-02-05 21:49 ` [PATCH 4/4] Add a timer to allow the separation of consigned from steal time Michael Wolf
2013-02-06 14:36   ` Glauber Costa [this message]
2013-02-06 18:07     ` Michael Wolf
2013-02-07  8:46       ` Glauber Costa
2013-02-07 14:27         ` Michael Wolf
2013-02-18 23:57   ` Marcelo Tosatti
2013-03-05 20:17     ` Michael Wolf
2013-03-06  1:35       ` Marcelo Tosatti
2013-02-18 16:43 ` [PATCH 0/4] Alter steal-time reporting in the guest Frederic Weisbecker
2013-02-19  1:11   ` Marcelo Tosatti
2013-03-05 20:22     ` Michael Wolf
2013-03-06  1:41       ` Marcelo Tosatti
2013-03-06  8:13         ` Glauber Costa
2013-03-06 16:29           ` Michael Wolf
2013-03-07  0:52             ` Marcelo Tosatti
2013-03-07  3:11               ` Paul Mackerras
2013-03-07 20:23                 ` Michael Wolf
2013-03-06 16:27         ` Michael Wolf
2013-03-07  2:30           ` Marcelo Tosatti
2013-03-07 21:09             ` Michael Wolf
2013-03-07 21:15             ` Michael Wolf
2013-03-07 21:25               ` Marcelo Tosatti
2013-03-07 22:34                 ` Michael Wolf
2013-03-08  1:54                   ` Marcelo Tosatti
2013-03-08  2:21                     ` Marcelo Tosatti
2013-03-06 13:34       ` Frederic Weisbecker
2013-03-06 16:23         ` Michael Wolf
2013-03-06 13:20     ` Frederic Weisbecker

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