linux-kernel - Re: [RESEND][PATCH 1/4] Introduce a new field "guest" in cpustat

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Date:	Mon, 10 Sep 2007 10:49:58 -0400
From:	Rik van Riel <riel@...hat.com>
To:	Laurent Vivier <Laurent.Vivier@...l.net>
CC:	Ingo Molnar <mingo@...e.hu>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [RESEND][PATCH 1/4] Introduce a new field "guest" in cpustat

Laurent Vivier wrote:
> [PATCH 1/4] as recent CPUs introduce a third running state, after "user" and
> "system", we need a new field, "guest", in cpustat to store the time used by
> the CPU to run virtual CPU. Modify /proc/stat to display this new field.

I think it would be good to always print out that number, even if
it is zero without the CONFIG option set.

Changing the format of /proc/stat depending on config options is
probably worse than changing it when moving kernel versions.

I guess reusing the "steal" field is not a good idea, since your
new "guest time" has different semantics than the steal time field.

-- 
Politics is the struggle between those who want to make their country
the best in the world, and those who believe it already is.  Each group
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