From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeremy Fitzhardinge <jeremy@goop.org>
Subject: Re: Stolen and degraded time and schedulers
Date: Thu, 15 Mar 2007 12:53:17 -0700
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To: Dan Hecht <dhecht@vmware.com>
Cc: dwalker@mvista.com, john stultz <johnstul@us.ibm.com>, paulus@au.ibm.com, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, Con Kolivas <kernel@kolivas.org>, Chris Wright <chrisw@sous-sol.org>, Virtualization Mailing List <virtualization@lists.osdl.org>, cpufreq@lists.linux.org.uk, schwidefsky@de.ibm.com, Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>
List-Id: virtualization@lists.linuxfoundation.org

Dan Hecht wrote:
> Available time is defined to be (real_time - stolen_time).  i.e. time
> in which the vcpu is either running or not ready to run [because it is
> halted, and nothing is pending]).

Hm, the Xen definition of stolen time is "time VCPU spent in runnable
(vs running) or offline state".  If the VCPU was blocked anyway, then
its never considered to be stolen.  Offline means the VCPU was paused by
the administrator, or during suspend/resume.

    J