linux-kernel - Re: [PATCH 0/5] Alter steal time reporting in KVM

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Message-ID: <20121128003229.GE8295@amt.cnet>
Date:	Tue, 27 Nov 2012 22:32:29 -0200
From:	Marcelo Tosatti <mtosatti@...hat.com>
To:	Michael Wolf <mjw@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org, riel@...hat.com, kvm@...r.kernel.org,
	peterz@...radead.org, glommer@...allels.com, mingo@...hat.com
Subject: Re: [PATCH 0/5] Alter steal time reporting in KVM

On Tue, Nov 27, 2012 at 09:24:42PM -0200, Marcelo Tosatti wrote:
> On Mon, Nov 26, 2012 at 02:36:24PM -0600, Michael Wolf wrote:
> > In the case of where you have a system that is running in a
> > capped or overcommitted environment the user may see steal time
> > being reported in accounting tools such as top or vmstat.
> 
> The definition of stolen time is 'time during which the virtual CPU is
> runnable to not running'. Overcommit is the main scenario which steal
> time helps to detect.

Meant 'runnable but not running'.


> Can you describe the 'capped' case?

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