linux-kernel - Re: [PATCH v3 7/9] KVM-GST: KVM Steal time accounting

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Date:	Thu, 30 Jun 2011 23:50:58 -0300
From:	Glauber Costa <glommer@...hat.com>
To:	Peter Zijlstra <peterz@...radead.org>
CC:	kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
	Rik van Riel <riel@...hat.com>,
	Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>,
	Avi Kivity <avi@...hat.com>,
	Anthony Liguori <aliguori@...ibm.com>,
	Eric B Munson <emunson@...bm.net>
Subject: Re: [PATCH v3 7/9] KVM-GST: KVM Steal time accounting

On 06/30/2011 06:54 PM, Peter Zijlstra wrote:
> On Wed, 2011-06-29 at 11:29 -0400, Glauber Costa wrote:
>> This patch accounts steal time time in kernel/sched.
>> I kept it from last proposal, because I still see advantages
>> in it: Doing it here will give us easier access from scheduler
>> variables such as the cpu rq. The next patch shows an example of
>> usage for it.
>>
>> Since functions like account_idle_time() can be called from
>> multiple places, not only account_process_tick(), steal time
>> grabbing is repeated in each account function separatedely.
>>
>
> That changelog is so going to frustrate someone trying to re-create your
> thinking in a year's time. They really don't care about the last
> proposals and the next patch.

You're right. I'll review all changelogs and rewrite them as needed.
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