[SR-Users] Server requirements estimation

[Daniel-Constantin Mierla]

Hello,

there is no generic magic formula, it depends a lot on the configuration
file, what modules are used, if the system tracks transactions or
dialogs, how many records are cached in memory (e.g, lcr or dialplan),
encryption/decryptionneeds, as well as how many blocking/long time
operations are done (e.g., http query, db query, ...).

Dimensioning the memory can be done by starting the Kamailio, then get
the stats and see how much is the startup overhead, then you can push a
set of users or calls (e.g., 10000 registrations), get again the stats
and see how much was added, then you should be able to estimate how much
is needed (e.g., per registration). But even here you have to work with
a rough estimate, because different UAs have specific behaviour, like
larger header values (e.g., for a registration Kamailio stores the
callid, Contact URI, Path headers, ...).

Cheers,
Daniel

On 09.03.21 12:30, Marat Gareev wrote:
> Hello!
>
> I'm configuring Kamailio proxy and trying to find instructions or
> advises for choosing the following options:
> _Host specific_
>
>   * Number of cores
>   * RAM size
>
> _Kamailio specific_
>
>   * Number of children to fork for the UDP interfaces
>   * Shared memory size
>
> The proxy will not connect to the database, only route INVITEs using
> the dispatcher. The expected load is 70K requests per hour.
>
> Are there any formulas for calculating the parameters?
>
> _______________________________________________
> Kamailio (SER) - Users Mailing List
> sr-users at lists.kamailio.org
> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

-- 
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Funding: https://www.paypal.me/dcmierla

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.kamailio.org/pipermail/sr-users/attachments/20210317/42451b4c/attachment.htm>