[SR-Users] Kamailio Calls Concurrency

[Henning Westerholt]

Am Montag, 23. Juli 2018, 09:07:16 CEST schrieb Abtin Mir:
> I understand the IO operations affects to overall performance. That proxy
> server is actually a dispatcher (Load Balancer)  to different Asterisk pbx
> endpoints and is only going to log INVITEs and BYEs. Since I'm new to SER ,
> Not really sure If should have RTP-Proxy as well, or not.(Your advice on
> this is appreciated).
> 
>  So how you think the concurrency would be now? (Considering 16GB of RAM
> and 4 cores of Xeon-Silver 4114) I just need a estimated number by an
> expert like you.

Hello Abtin,

again - this is hard to say. I know from a past setup in an carrier grade 
environment that we sized it to have 3000-6000 concurrent calls per proxy. The 
server were not much under load. They handled also more concurrent calls 
without any issues in certain fail-over situations. And this was several years 
ago, which slower hardware.

So the bottom line is - in a reasonable optimized setup on standard hardware 
you should probably not run into CPU or RAM issues with Kamailio. The limiting 
factor is in most cases the I/O.

Best regards,

Henning

> On Sun, Jul 22, 2018 at 12:23 PM, Henning Westerholt <hw at kamailio.org>
> 
> wrote:
> > Am Freitag, 6. Juli 2018, 09:52:16 CEST schrieb Abtin Mir:
> > > As a proxy server , How many concurrent calls can be processed by a
> > > Kamailio which is installed on a VM with 4 cores and 16GB of RAM?
> > > 
> > > Your answer is much appreciated.
> > 
> > Hello Abtin,
> > 
> > this depends a lot on your configuration, if you use a lot of database
> > requests, if the database is local or remote, the database performance,
> > the
> > amount of logging you are doing locally, do you handle RTP as well and so
> > on.
> > 
> > If your server is not exceedingly using a lot of this mentioned IO
> > operations,
> > you should be able to handle many thousands concurrent calls with one
> > server.
> > 
> > But to have a proper answer for your certain scenario, you need to test
> > it.
> > 
> > Best regards,
> > 
> > Henning
> > 
> > 
> > --
> > If you like my work in the Kamailio project, it would be great if you
> > could
> > consider supporting me on Patreon: https://www.patreon.com/henningw


-- 
If you like my work in the Kamailio project, it would be great if you could 
consider supporting me on Patreon: https://www.patreon.com/henningw