[Freeswitch-users] Problems with RTP delay at around 300 concurrent calls

[Guillermo Ruiz Camauer]

Have you tried spreading the calls over more than 1 SIP profile?  Each SIP
profile gets its own thread.

Also, is this all within your LAN?  No firewalls/filters?  Are you sure you
are linking at 1Gbps, full duplex?

Guillermo


On Sat, Jun 7, 2014 at 2:22 PM, D D <tru083 at yahoo.com> wrote:

> Hi,
>
> I would like to put 500 - 1000 calls into a FS system.
>
> I have a Dell R900 server with these properties:
>    8 processors at 2.40GHz
>    8GB RAM
>    Gigabit ethernet
>
> I use sipp to send RTP streams.
>
> I use the FS settings recommended here:
>    https://wiki.freeswitch.org/wiki/Performance_testing_and_configurations
> including the in-memory core.db.
>
> I also have used the "-rp" and "-nosql" settings on the FS command-line,
> and
> also used the "chrt" command to increase the priority to real-time.
>
> In all cases, at around 300 concurrent calls, the RTP inter-packet delay
> becomes
> unacceptably high.  The voice quality is severely impacted.
>
> During the test, the CPU is not overloaded.  It is using only about 1.5 of
> the 8 processors.
>
> Are these results expected?
>
> Has anyone gone higher than 300 concurrent calls?
>
> Is there anything else that I can do with configuration to improve
> throughput?
>
> Thanks,
> David
>
>
>
>
>
>
>
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-- 
Guillermo Ruiz Camauer
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