[Devel] Re: Idle time statistics for a container

[Kirill Korotaev]

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.
> 

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