(Please do not forget to reply to the list too.)

Well, what exactly do you want to measure?

How do you define "performance"?
 * Is the delay relevant (performance indicated by the speed of
processing the requests at high load)?
 * Or is the success-rate relevant (performance indicated by how man
calls were set up successfully)?
 * or is both relevant (a call must handled successfully within a
specific time interval)?

Depending on your definition, you must decide, where and what you want
to observe.

br
Michael



On 2011-03-31 15:26, viswavardhanreddy karna wrote:
> Hi michael,
>                    Thanks again for replying.... 
> 
> But when you see the only acks ... how many invites you send from client
> that many acks can be received... so there will be no failure calls
> every call will be successsful.
> 
> For calculating the server performance i am loading server with
> calls/sec of more than 500 or 600 in that case if every call becomes
> successful how can we know the server performances at acks.... 
> 
> 
> with regards,
> viswavardhan
> 
> On Thu, Mar 31, 2011 at 3:13 PM, Michael Hirschbichler
> <[email protected] <mailto:[email protected]>> wrote:
> 
>     On 2011-03-31 14:41, viswavardhanreddy karna wrote:
>     > I am using SIPp as traffic generator... in order to calculate the
>     number
>     > of successful calls from total number of calls which side results
>     should
>     > be taken?
> 
>     Well, the question is, how do you define a successful call? And that's
>     the reason why I forwarded you to rfc6076, where some of these metrics
>     are described.
> 
>     E.g., you can calculate the "Successful Session Setup - Session Request
>     Delay" - the delta between sending the 1st INVITE and receiving the
>     first response initiated by the B-Party (mostly the 180 Ringing).
>     Another metric is the "Session Disconnect Delay", where you calculate
>     the delay between sending the BYE and receiving the 200OK
> 
>     Usually, a successful call is initiated, when the ACK arrived at
>     B-Party. So, log with the shortmessages-flag on both A- and B-party and
>     calculate the "sent INVITEs"-"received ACKs" ratio
> 
>     br
>     Michael
> 
>     >
>     > what i mean is user agent client produces some results and user agent
>     > server produces some results .. in these 2 results which results
>     should
>     > i consider as number of successfull calls?
>     >
>     >
>     > can you please give me an idea regarding this...
>     >
>     >
>     > with regards,
>     > viswavardhan
>     >
>     > On Thu, Mar 31, 2011 at 9:55 AM, Michael Hirschbichler
>     > <[email protected] <mailto:[email protected]>
>     <mailto:[email protected] <mailto:[email protected]>>> wrote:
>     >
>     >     I propose you take the KPIs from RFC 6076 - "Basic Telephony SIP
>     >     End-to-End Performance Metrics",
>     >
>     >     br
>     >     Michael
>     >
>     >     On 2011-03-30 23:23, viswavardhanreddy karna wrote:
>     >     > Hi every one,
>     >     >                      I have a doubt regarding the calculation of
>     >     server
>     >     > perforrmance.
>     >     >
>     >     > Should we take successfull calls that are obtained from the
>     UAC side ?
>     >     > or successful calls obtained from the UAS SIDE..? for
>     evaluation of
>     >     > server performance...
>     >     >
>     >     >
>     >     >
>     >     >
>     >     >
>     >     >
>     >     >
>     >     >
>     >     >
>     >     >
>     >     >
>     >     > thanking you soo much,
>     >     >
>     >     >
>     >     >
>     >     >
>     >     >
>     >     > with regards,
>     >     > viswavardhan
>     >     >
>     >     >
>     >     >
>     >     >
>     >    
>     
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