hi, i am quite new to freeswitch and now i finally have fs up and running as i want with my php scripts to handle the calls. now that i want to start the service in the near future, i would like to test the performance of the whole system and the reliability. what are your experiences and ideas, how i could do it the best way? and what do i have to look for? i startet to test with sipp, which seems to be a useful tool, although i am not sure, how to read the results. in the switch.conf i set "max-sessions" to 11000 and "sessions-per-second" to 2000. in the console i entered: sipp -sn uac xx.xx.xx.xx -s 123456 -r 20 -l 1000 -d 4000 -rtp_echo the results are as follow: 20.0(4000 ms)/1.000s 5061 51.18 s 1023 xx.xx.xx.xx:5060(UDP) 20 new calls during 1.001 s period 9 ms scheduler resolution 807 calls (limit 1000) Peak was 807 calls, after 51 s 0 Running, 807 Paused, 0 Woken up 0 out-of-call msg (discarded) 1 open sockets 75989 Total echo RTP pckts 1st stream 481.979 last period RTP rate (kB/s) 0 Total echo RTP pckts 2nd stream 0.000 last period RTP rate (kB/s) Messages Retrans Timeout Unexpected-Msg INVITE ----------> 1023 0 0 100 <---------- 1023 0 0 180 <---------- 0 0 0 183 <---------- 249 0 0 200 <---------- E-RTD1 249 0 0 ACK ----------> 249 0 Pause [ 0ms] 249 0 BYE ----------> 216 0 0 200 <---------- 216 0 0 Counter Name | Periodic value | Cumulative value -------------------------+---------------------------+-------------------------- Elapsed Time | 00:00:00:072 | 00:08:30:106 Call Rate | 0.000 cps | 4.166 cps -------------------------+---------------------------+-------------------------- Incoming call created | 0 | 0 OutGoing call created | 0 | 2125 Total Call created | | 2125 Current Call | 0 | -------------------------+---------------------------+-------------------------- Successful call | 9 | 2125 Failed call | 0 | 0 -------------------------+---------------------------+-------------------------- Response Time 1 | 00:00:00:000 | 00:02:43:140 Call Length | 00:04:04:169 | 00:02:47:149 i do not get any errors. but i think that it is strange, that there are so little calls running at the same time. when i try to call the same number as sipp does, i have to wait a very long time, till the call is beeing answered. why are there so many paused calls waiting for fs to take care of? is this normal or are there some problems, which i have to take care of? i want to add, that i am using socket outbound with a number of php-scripts, which do a lot of call- and dialplan-handling. i am not using any xml. therefore i am sure, that the results are worse, that they would be with normal xml dialplans. thanks for your help and tipps. dannis