[OpenSIPS-Users] Presence server performance

[John Khvatov]

Hello all.

I'm testing performance of OpenSIPS presence server. I got bad results... Any ideas how to improve it?

My test scenario (SIPp xml config: http://dev.sgu.ru/pub/pubsub.xml):

SIPp                    Presence Server
 |         PUBLISH             |
 |---------------------------->|
 |                             |
 |         200 OK              |
 |<----------------------------|
 |                             |
 | SUBSCRIBE (on publised uri) |
 |---------------------------->|
 |                             |
 |         200 OK              |
 |<----------------------------|
 |                             |
 |         NOTIFY              |
 |<----------------------------|
 |                             |
 |         200 OK              |
 |---------------------------->|

After 10.000 calls (10.000 scenario) OpenSIPS began to write warnings about memory to log:
WARNING:core:fm_malloc: Not enough free memory, will atempt defragmenation

Results with 100 calls per second:
Total calls: 74454
Calls per second: 16.485 cps
Successful calls:  73772
Failed calls: 382
(With 10.000 "total calls" OpenSIPS shows 100 cps, almost zero failed calls)


Results with 1000 calls per second:
Total calls 20857
Calls per second: 12.696 cps
Successful calls: 15360
Failed calls: 2497

SUBSCRIBE to one of 500.000 published user is running 1-2 sec..

System configuration.
OS: Debian squeeze/sid (Not tuned)
Processor: Intel Xeon E5345
RAM: 1G (OpenSIPS executed with -m 64 option. Memory is still available during tests)
OpenSIPS: Version 1.6.3. Config is very simple: handle_subscribe() && handle_publish(). fallback2db disabled. Storage postgresql 8.4.

-- 
WBR, John Khvatov