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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> <param name="rtp-timeout-sec" value="300"/> change to <param name="rtp-timeout-sec" value="0"/> or <param name="rtp-timeout-sec" value="zero"/>?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> freeswitch-users-bounces@lists.freeswitch.org [mailto:freeswitch-users-bounces@lists.freeswitch.org] <b>On Behalf Of </b>Guillermo Ruiz Camauer<br><b>Sent:</b> Friday, June 27, 2014 11:38 AM<br><b>To:</b> FreeSWITCH Users Help<br><b>Subject:</b> Re: [Freeswitch-users] Problems with RTP delay at around 300 concurrent calls<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Ali,<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>What benefits and or consecuences does setting <span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>rtp-timer-name to none and rtp-timeout-sec to zero bring about?</span><o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Thanks,</span><o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Guillermo</span><o:p></o:p></p></div></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p><div><p class=MsoNormal>On Fri, Jun 27, 2014 at 9:09 AM, Ali Pey <<a href="mailto:alipey@gmail.com" target="_blank">alipey@gmail.com</a>> wrote:<o:p></o:p></p><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><div><p class=MsoNormal>Hi David,<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Yes, we have done more than 1000 concurrent calls. Here are a few things we needed to do:<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><div><p class=MsoNormal>1) Add the following to /etc/security/limits.conf<o:p></o:p></p></div><div><p class=MsoNormal>* hard nofile 65536<o:p></o:p></p></div><div><p class=MsoNormal>* soft nofile 65536<o:p></o:p></p></div><div><p class=MsoNormal>root hard nofile 65536<o:p></o:p></p></div><div><p class=MsoNormal>root soft nofile 65536<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>freeswitch hard stack 10240<o:p></o:p></p></div><div><p class=MsoNormal>freeswitch soft stack 244<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>freeswitch hard nproc unlimited<o:p></o:p></p></div><div><p class=MsoNormal>freeswitch soft nproc unlimited<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>2) Add the followings to /etc/init.d/freeswitch<o:p></o:p></p></div><div><p class=MsoNormal> ulimit -c unlimited<o:p></o:p></p></div><div><p class=MsoNormal> ulimit -d unlimited<o:p></o:p></p></div><div><p class=MsoNormal> ulimit -f unlimited<o:p></o:p></p></div><div><p class=MsoNormal> ulimit -i unlimited<o:p></o:p></p></div><div><p class=MsoNormal> ulimit -n 999999<o:p></o:p></p></div><div><p class=MsoNormal> ulimit -q unlimited<o:p></o:p></p></div><div><p class=MsoNormal> ulimit -u unlimited<o:p></o:p></p></div><div><p class=MsoNormal> ulimit -v unlimited<o:p></o:p></p></div><div><p class=MsoNormal> ulimit -x unlimited<o:p></o:p></p></div><div><p class=MsoNormal> ulimit -s 240<o:p></o:p></p></div><div><p class=MsoNormal> ulimit -l unlimited<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div></div><div><p class=MsoNormal>3) Set rtp-timer-name to none and rtp-timeout-sec to zero in your sip profile.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Regards,<o:p></o:p></p></div><div><p class=MsoNormal>Ali Pey<o:p></o:p></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p><div><div><p class=MsoNormal>On Tue, Jun 24, 2014 at 3:42 PM, Guillermo Ruiz Camauer <<a href="mailto:grcamauer@gmail.com" target="_blank">grcamauer@gmail.com</a>> wrote:<o:p></o:p></p></div><div><div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><p class=MsoNormal>Have you tried spreading the calls over more than 1 SIP profile? Each SIP profile gets its own thread.<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Also, is this all within your LAN? No firewalls/filters? Are you sure you are linking at 1Gbps, full duplex?<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Guillermo<o:p></o:p></p></div></div></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p><div><p class=MsoNormal>On Sat, Jun 7, 2014 at 2:22 PM, D D <<a href="mailto:tru083@yahoo.com" target="_blank">tru083@yahoo.com</a>> wrote:<o:p></o:p></p><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><div><div><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue";color:black'>Hi,<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'>I would like to put 500 - 1000 calls into a FS system. <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'>I have a Dell R900 server with these properties:<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'> 8 processors at 2.40GHz<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'> 8GB RAM<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'> Gigabit ethernet<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'>I use sipp to send RTP streams.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'>I use the FS settings recommended here:<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'> <a href="https://contactmonkey.com/api/tracker?cm_session=c6e7bb42-d00d-46cc-bfdd-e3072b818af8&cm_type=link&cm_link=7e360a1f-cf3a-4b18-86e3-239b2604c34b&cm_destination=https://wiki.freeswitch.org/wiki/Performance_testing_and_configurations" target="_blank">https://wiki.freeswitch.org/wiki/Performance_testing_and_configurations</a><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'>including the in-memory core.db.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'>I also have used the "-rp" and "-nosql" settings on the FS command-line, and<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'>also used the "chrt" command to increase the priority to real-time.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'>In all cases, at around 300 concurrent calls, the RTP inter-packet delay becomes<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'>unacceptably high. The voice quality is severely impacted.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'>During the test, the CPU is not overloaded. It is using only about 1.5 of the 8 processors.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'>Are these results expected?<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'>Has anyone gone higher than 300 concurrent calls?<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'>Is there anything else that I can do with configuration to improve throughput?<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'>Thanks,<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'>David<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Helvetica Neue";color:black'> <o:p></o:p></span></p></div></div></div><p class=MsoNormal 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