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

[D D]

I am using G711 codec.  


There are no firewalls.  It is a small, nearly self-contained network of the sipp machine, a switch, and the FS machine.

The links show to be 1G and full duplex.

The calls come in at around 2 per second, so I think the single Sofia profile thread for the signaling should be acceptable.   Do you agree? 

Thanks,
David



On Tuesday, June 24, 2014 2:47 PM, Guillermo Ruiz Camauer <grcamauer at gmail.com> wrote:
 


What codec are you using?  Have you turned down/off logging?  Is there any swapping going on?

Guillermo



On Tue, Jun 24, 2014 at 4:42 PM, Guillermo Ruiz Camauer <grcamauer at gmail.com> wrote:

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?
>
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>
>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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>>
>>
>> 
>>_________________________________________________________________________
>>Professional FreeSWITCH Consulting Services:
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>>http://www.freeswitchsolutions.com
>>
>>
>>
>>
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>
>
>
>-- 
>Guillermo Ruiz Camauer
>


-- 
Guillermo Ruiz Camauer


_________________________________________________________________________
Professional FreeSWITCH Consulting Services:
consulting at freeswitch.org
http://www.freeswitchsolutions.com




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