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From: Kirill Korotaev <dev-3ImXcnM4P+0@public.gmane.org>
To: vatsa-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org
Cc: containers-qjLDD68F18O7TbgM5vRIOg@public.gmane.org
Subject: Re: Idle time statistics for a container
Date: Wed, 10 Oct 2007 19:35:14 +0400	[thread overview]
Message-ID: <470CF132.5050003@sw.ru> (raw)
In-Reply-To: <20071010142529.GA4690-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>

yes, OpenVZ calculates idle statistics for VE.
it is calculated as follows:
cpu user/system time are incremented as usual on timer tick,
idle time is incremented on per-VE per-VCPU runqueue when there is no tasks
in VE runqueue.

i.e. VE idle time is the time when there were no VE tasks on the runqueue.

Srivatsa Vaddagiri wrote:
> Hi Kirill/Hertbert,
> 	Does Openvz or Linux-VServer provide idle time statistics per
> container? i.e how much time a container has been idle?
> 
> Just exploring whether that be a usefull stats to provide on a
> per-control group basis.
> 

  parent reply	other threads:[~2007-10-10 15:35 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-10-10 14:25 Idle time statistics for a container Srivatsa Vaddagiri
     [not found] ` <20071010142529.GA4690-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2007-10-10 15:35   ` Kirill Korotaev [this message]
2007-10-10 18:00   ` Herbert Poetzl
     [not found]     ` <20071010180039.GG27755-ZD0Mn47LIGX0Pe/G4T7+5F6hYfS7NtTn@public.gmane.org>
2007-10-10 18:20       ` Srivatsa Vaddagiri

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