Re: [Xen-API] Data metrics exported by Xen API

[Jonathan Ludlam <Jonathan.Ludlam@xxxxxxxxxxxxx>]

Hi Abhijeet,

We grab the stats every 5 seconds currently - these values are then taken as 
DSs in the spirit of RRDtool, and we use them to create different timescale 
archives.

The source that actually grabs the numbers from dom0 is here:
http://xenbits.xen.org/xapi/xen-api.hg?file/a8decf9d3bee/ocaml/xapi/monitor.ml

and the RRD stuff is documented on the wiki:
http://wiki.xensource.com/xenwiki/XAPI_RRDs

Hope this helps!

Jon


On 3 Mar 2010, at 12:49, Sane, Abhijeet wrote:

> Hi ,
> 
> I want to know how the  data metrics like VBD Data I/O read/write rate , VIF 
> Network I/O rates are calculated. I want to know what is the time interval / 
> sampling frequency used for calculating these average time rates.
> 
> Regards
> Abhijeet Sane
> 
> 
> _______________________________________________
> xen-api mailing list
> xen-api@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/mailman/listinfo/xen-api


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