linux-kernel - Re: [PATCH 0/4] Virtual Machine Time Accounting

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Message-ID: <46C9BD8F.4070807@goop.org>
Date:	Mon, 20 Aug 2007 09:13:03 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Laurent Vivier <Laurent.Vivier@...l.net>
CC:	John Stoffel <john@...ffel.org>,
	kvm-devel <kvm-devel@...ts.sourceforge.net>,
	Ingo Molnar <mingo@...e.hu>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	virtualization <virtualization@...ts.linux-foundation.org>
Subject: Re: [PATCH 0/4] Virtual Machine Time Accounting

Laurent Vivier wrote:
> functionnalities:
>
> - allow to measure time spent by a CPU in a virtual CPU.
> - allow to display in /proc/state this value by CPU
> - allow to display in /proc/<pid>/state this value by process
> - allow KVM to use these 3 previous functionnalities
>   

So, currently time spent in a kvm guest is accumulated as qemu-kvm
usertime, right?  Given that qemu knows when its running in qemu vs
guest context, couldn't it provide the breakdown between user and guest
time (ditto lguest)?

    J
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