linux-kernel - Re: [PATCH v2 13/14] provide a version of cpuusage statistics inside cpu cgroup

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Date:	Wed, 9 Nov 2011 17:18:35 +0300
From:	Andrew Wagin <avagin@...il.com>
To:	Glauber Costa <glommer@...allels.com>
Cc:	linux-kernel@...r.kernel.org, paul@...lmenage.org,
	lizf@...fujitsu.com, daniel.lezcano@...e.fr,
	a.p.zijlstra@...llo.nl, jbottomley@...allels.com, pjt@...gle.com,
	fweisbec@...il.com, Balbir Singh <bsingharora@...il.com>
Subject: Re: [PATCH v2 13/14] provide a version of cpuusage statistics inside
 cpu cgroup

And look at cfs_rq->prev_sum_exec_runtime, probably it is not used too.
Usage of cfs_rq->sum_exec_runtime looks strange.

2011/11/9 Glauber Costa <glommer@...allels.com>:
> On 11/09/2011 09:51 AM, Andrew Wagin wrote:
>>
>> Hi Glauber,
>>
>>> diff --git a/kernel/sched.c b/kernel/sched.c
>>> index d93cfd4..b9296cd 100644
>>> --- a/kernel/sched.c
>>> +++ b/kernel/sched.c
>>> @@ -303,6 +303,7 @@ struct task_group {
>>>
>>>        struct cfs_bandwidth cfs_bandwidth;
>>>        struct kernel_cpustat __percpu *cpustat;
>>> +       u64 __percpu *cpuusage;
>>
>> I can't find where you use this variable, probably it may be removed.
>
> Indeed.
> This is a leftover from the previous attempt.
>
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