Re: [RESEND][PATCH 0/4] Virtual Machine Time Accounting
From: Laurent Vivier
Date: Mon Sep 10 2007 - 08:16:30 EST
Ingo Molnar wrote:
> * Laurent Vivier <Laurent.Vivier@xxxxxxxx> wrote:
>
>> Ingo, please, could you have a look to these patches ?
>>
>> The aim of these four patches is to introduce Virtual Machine time
>> accounting.
>>
>> [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.
>
> the concept certainly looks sane to me.
>
> The heavy-handed use of #ifdefs uglifies the code to a large degree, but
> this is not a fundamental problem: since basically all distros have KVM
> enabled (and lguest benefits from this too), could you just make all
> this new code unconditional?
No problem for me.
Thank you,
Laurent
--
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"Software is hard" - Donald Knuth
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