Open Stack

Hi Eoghan and every body;

Please i am blocked on one point. I need to know some mapping formulas. For
example the QoS availability is calculated through the low level metric
uptime and downtime. And the used formulas is: availability = 1-
(uptime/downtime+uptime).
Please whom know others formulas to calculate others QoS through low level.
For example:
Throughput???
Reliability???
Cost???

Thank you
Yours,
Rima


2014-01-02 16:11 GMT+01:00 Eoghan Glynn <eglynn at redhat.com>:

>
> Hi Rima,
>
> What precisely do you mean by QoS values?
>
> Are you talking about the responsiveness of an API service?
>
> That is not something that you can directly derive from the
> instance-level metrics such as CPU util & network IOPs that
> ceilometer collects.
>
> Cheers,
> Eoghan
>
> ----- Original Message -----
> > Hello everyone,
> >
> > Please what are the formulas which can do the mappings from low levels
> > metrics ( extracted from ceilometer ) to the QoS values.
> > I know how to calculate the response time of a service from the values
> > bandwith , inbytes ......
> >
> > Are you aware of other formulas for other values of QoS .
> >
> > Thank you
> >
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> >
>



-- 


----------------------------------------------------------------------------------------------
Rima Grati
PhD student
Multimedia, InfoRmation systems & Advanced Computing Laboratory -Miracl
Sfax University
Address : FSEGS, CP 1088, 3018 Sfax-Tunisia
*-----------------------------------------------------------------------------------------------*
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