[Kamailio-Users] Kamailio/Openser - improve the performance with children process

[Klaus Darilion]

Ovidiu Sas wrote:
 > It all depends on your config.
 > For instance, in my setup I do between 100 to 200 cps with 3 workers.
 > It is important to tune your config based on your requirements and the
 > hardware (mainly number of CPU/cores).

It also depends on your backbone systems. E.g. if you are using DBs or 
Radius server which respond slow (e.g. hosted in another datacenter 
causing some RTT delay, then it is better to have more children as 
otherwise the childrens are blocked waiting for the reponse although the 
CPU is idle.

Of course the memory consumption increases with the childrens. My 
default setting is 10. (if the proxy is listining on one UDP socket). If 
the proxy is listening on several sockets it is better to have less 
childrens as the children setting is per UDP listening socket.

regards
klaus


 >
 > Regards,
 > Ovidiu Sas
 >
 >
 > On Wed, Oct 29, 2008 at 1:26 PM, Daniel Cardoso Alves
 > <dcardosoa at yahoo.com.br> wrote:
 >> Hi Henning Westerholt,
 >>
 >> Thanks for you reply...
 >>
 >> But I would like to know if there is a number that improve the
 >> performance...
 >>
 >> For example: If come 100 INVITE at the same moment, is there a NUMBER OF
 >> CHILDREN that has the best perfomance?
 >>
 >> The number of children depends on something?
 >>
 >>
 >> Thanks
 >>
 >>
 >>
 >>
 >>
 >> --- Em qua, 29/10/08, Henning Westerholt <henning.westerholt at 1und1.de>
 >> escreveu:
 >>
 >> De: Henning Westerholt <henning.westerholt at 1und1.de>
 >> Assunto: Re: [Kamailio-Users] Kamailio/Openser - improve the performance
 >> with children process
 >> Para: users at lists.kamailio.org
 >> Cc: dcardosoa at yahoo.com.br
 >> Data: Quarta-feira, 29 de Outubro de 2008, 11:25
 >>
 >> On Wednesday 29 October 2008, Daniel-Constantin Mierla wrote:
 >>>> Is there a number of children that the Kamailio/Openser for improve
 >>>> the performance?
 >>>>
 >>>> Each process takes care of a request?
 >>> yes, each process takes care of a SIP message (request/reply).
 >> Hi Daniel Cardoso,
 >>
 >> take a look to the core cookbook in our wiki [1] for more 
informations how
 >> you
 >> can control the number of childrens per protocol (UDP, TCP..).
 >>
 >> Cheers,
 >>
 >> Henning
 >>
 >> [1] 
http://www.kamailio.org/dokuwiki/doku.php/core-cookbook:devel#children
 >>
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