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[odermann at googlemail...]

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

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[krice at suspicious.org]

Freeswitch can handle a large volume of call... I suggest you review your
configs to make sure you don't have any of the default or arbitrary other
limits in there... We routinely run > 1500 concurrent calls on dual quad
core hardware at call rates far above what you tested at

Ken

[odermann at googlemail...]

if i do the same test with the 9998, it does not to seem much better:

20.0(4000 ms)/1.000s 5061 68.25 s 1174 xx.xx.xx.xx:5060(UDP)

0 new calls during 1.008 s period 9 ms scheduler resolution
710 calls (limit 1000) Peak was 782 calls, after 58 s
0 Running, 710 Paused, 0 Woken up
0 out-of-call msg (discarded)
1 open sockets
595580 Total echo RTP pckts 1st stream 2809.336 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 ----------> 1174 0 0
100 <---------- 1174 0 0
180 <---------- 0 0 0
183 <---------- 0 0 0
200 <---------- E-RTD1 480 0 0
ACK ----------> 480 0
Pause [ 0ms] 480 0
BYE ----------> 464 0 0
200 <---------- 464 0 0

what settings could i review to get more out of the server?

our setup is a new xeon quad core, 4 gb ram and ubuntu 64-bit. we also
entered the ulimit lines and set "manage-presence" to false.


thanks
dennis



2008/12/23 Ken Rice <krice@suspicious.org>:

[krice at suspicious.org]

There are a number of issues you can be running into... It really depends on
how your app works, what your actual configuration of freeswitch is, disk IO
subsystem, ulimits, etc etc....

[odermann at googlemail...]

because the latest result was with the 9998, it can't be out app (at
the moment).

so there are no other typical things or settings i could look for?


2008/12/23 Ken Rice <krice@suspicious.org>:

[krice at suspicious.org]

Whats this 9998 to which you refer?

[odermann at googlemail...]

the 9998 is an extension in the default.xml to test with media flowing
through the line.


2008/12/23 Ken Rice <krice@suspicious.org>:

[krice at suspicious.org]

Oh! Well who knows how that will affect the performance... I have never
tested it with that... Try the echo tester but be sure you are using the
media refector with sipp or you arent doing anything useful

[odermann at googlemail...]

sorry, i do not really understand what you mean with: "Try the echo
tester but be sure you are using the media refector with sipp or you
arent doing anything useful".

what is the "echo tester" and what is "media refector" and how could i use it?

i would like to find out, how many people can talk to each other over
the fs server at the same time. a test setup, which simulates real
calls would be very helpful for me. and then i would like to be able
to compare the results with others, to see, if everything is working
as it should.



2008/12/23 Ken Rice <krice@suspicious.org>:

[krice at suspicious.org]

The echo tester was refering to the echo app in freeswitch

The media reflector is part of sipp that just echos media back to the
source... That's the proper way to test media handling capabilities
otherwise you are only seeing 1/2 the media stream

[odermann at googlemail...]

ah, that sounds interesting. so the echo app is the 9996, right?

how can i start/use the media reflector? is it something, i have to
call sipp with? sorry for this question, but i am very new in this
business.

right now i call sipp with: sipp -sn uac xx.xx.xx.xx -s 123456 -r 50
-l 400 -d 4000 -rtp_echo




2008/12/23 Ken Rice <krice@suspicious.org>: