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From: Laurent Vivier <Laurent.Vivier@bull.net>
To: Rik van Riel <riel@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>, linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [RESEND][PATCH 1/4] Introduce a new field "guest" in cpustat
Date: Mon, 10 Sep 2007 16:53:32 +0200	[thread overview]
Message-ID: <46E55A6C.6070106@bull.net> (raw)
In-Reply-To: <46E55996.8050009@redhat.com>

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Rik van Riel wrote:
> 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.
> 

I agree with all.

Laurent
-- 
------------- Laurent.Vivier@bull.net  --------------
          "Software is hard" - Donald Knuth


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      reply	other threads:[~2007-09-10 14:56 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-09-10 12:02 [RESEND][PATCH 1/4] Introduce a new field "guest" in cpustat Laurent Vivier
2007-09-10 14:49 ` Rik van Riel
2007-09-10 14:53   ` Laurent Vivier [this message]

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