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[Monsyne Dragon <mdragon@xxxxxxxxxxxxx>]

Yes,  we emit bandwidth (bytes in/out) on a per VIF basis from each instance The event has the somewhat generic name of 'compute.instance.exists'  and is emitted on an periodic basis, currently by a cronjob. 
Currently, we only populate bandwidth data from XenServer, but if the hook is implemented for  the kvm, etc drivers, it will be picked up automatically for them as well. 

Note that we could report other metrics similarly. 


On Apr 24, 2012, at 6:20 AM, Sandy Walsh wrote:

> I think we have support for this currently in some fashion, Dragon?
> 
> -S
> 
> 
> 
> On 04/24/2012 12:55 AM, Loic Dachary wrote:
>> Metering needs to account for the "volume of data sent to external network destinations " ( i.e. n4 in http://wiki.openstack.org/EfficientMetering ) or the disk I/O etc. This kind of resource is billable.
>> 
>> The information described at http://wiki.openstack.org/SystemUsageData will be used by metering but other data sources need to be harvested as well.

--
	Monsyne M. Dragon
	OpenStack/Nova 
	cell 210-441-0965
	work x 5014190