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@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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