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Re: how to get the current HN CPU utilization by particular CT [message #42718 is a reply to message #42711]

Sat, 14 May 2011 08:27

knawnd
Messages: 27
Registered: April 2011

Junior Member

As far as I understand in order to determine HN CPU load produced by
certain CT it is enough to extract 'user', 'system' and 'uptime' values
from /proc/vz/vestat twicely. Then the formula is
ct_cpu_usage=100%*[(user_time_2 + system_time_2) - (user_time_1 +
system_time_1)] / (uptime_2 - uptime_1)

I wonder if the formula above is correct and if it is then if it is
valid for both cases: when cpulimit is set and unset? I guess it should
be valid in both cases.

The second question is if there are any plans to implement HN CPU load
produced by particular CT in some of vz* tools (e.g. in vzcpucheck
providing some additional option and print one more column required info
about HN CPU utilization by each container)?

Regards,
Nikolay.

knawnd@gmail.com wrote on 13/05/11 16:58:
> Tim, thanks a lot for reply and info!
>
> Using all info I have now I will try to write what I need.
>
> Thanks again!
> Nikolay.
>
> Tim Small wrote on 13/05/11 16:46:
>> I can't remember how I derived it, but you might want to take a look at
>> this munin plugin which I wrote a few months back:
>>
>> http://exchange.munin-monitoring.org/plugins/openvzcpu/detai ls
>>
>> Cheers,
>>
>> Tim.
>>

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[Message index]

		how to get the current HN CPU utilization by particular CT By: knawnd on Thu, 12 May 2011 14:19
		vzmigrate standby mode By: Jean-Marc Pigeon on Thu, 12 May 2011 15:56
		Re: vzmigrate standby mode By: swindmill on Fri, 13 May 2011 00:12
		Re: vzmigrate standby mode By: Jean-Marc Pigeon on Fri, 13 May 2011 00:27
		Re: vzmigrate standby mode By: Aleksandar Ivanisevic on Fri, 13 May 2011 09:54
		Re: Re: vzmigrate standby mode By: swindmill on Fri, 13 May 2011 16:25
		Re: Re: vzmigrate standby mode By: Jean-Marc Pigeon on Fri, 13 May 2011 18:28
		Re: Re: vzmigrate standby mode By: Jean-Marc Pigeon on Mon, 16 May 2011 12:58
		Re: vzmigrate standby mode By: Aleksandar Ivanisevic on Wed, 18 May 2011 10:54
		Re: Re: vzmigrate standby mode By: Tim Small on Wed, 18 May 2011 11:30
		Re: Re: vzmigrate standby mode By: Tim Small on Wed, 18 May 2011 11:49
		Re: how to get the current HN CPU utilization by particular CT By: knawnd on Fri, 13 May 2011 11:48
		Re: how to get the current HN CPU utilization by particular CT By: Tim Small on Fri, 13 May 2011 12:46
		Re: how to get the current HN CPU utilization by particular CT By: knawnd on Fri, 13 May 2011 12:58
		Re: how to get the current HN CPU utilization by particular CT By: knawnd on Sat, 14 May 2011 08:27
		Re: how to get the current HN CPU utilization by particular CT By: Tim Small on Mon, 16 May 2011 13:59
		Re: how to get the current HN CPU utilization by particular CT By: knawnd on Tue, 17 May 2011 07:02

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