[SR-Users] Question about Kamailio Performance

[Daniel-Constantin Mierla]

Hello,

it seems that interaction with mysql is a bottleneck. What is the value
of children parameter in kamailio.cfg?

Cheers,
Daniel


On 28.09.17 04:00, Jiankai Zhu wrote:
> *My goal:*
>
> make sure when using kamailio as engine I can achieve:
>
>   * on systems with 4GB memory, Kamailio can serve a population over
>     300 000 online subscribers
>   * <from: https://www.kamailio.org/w/features/ >
>
>
> *Test bed:*
> CPU: 4 cores , 4G RAM
>
> Kamailio 5 with Mysql. 
>
> Test source：another server running SIPp
>
> 10k subscriber in Mysql .  6000 Register Per Second ,  reuse 10k user
> to register , it works fine.  If register 50 every second for per user
> it seem 300 k subscribers should work. 
> (about 300% cpu used of totally 400% cpu. All requests finished
> without retransmit and fail. )
>
> add 90k subscriber into Mysql .
> 100k subscirbers in Mysql . 1000 Register Per Second , a lot of
> failure and can not work . 
>
> (cpu are not used much at that time. IO is not high.)
>
> *My question : *
> What is the root cause of bad performance when there is 100k
> subscribers' data in the Mysql database. 
>
> How can I deploy a kamailio with 300k  subscriber in database, and
> support 6000 register per second at the same time ?
> Maybe use ram database instead of Mysql?   
>
> Thanks with regards,
> David
>
>
>
>
>
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-- 
Daniel-Constantin Mierla
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio Advanced Training - www.asipto.com
Kamailio World Conference - www.kamailioworld.com

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