[Users] Does OpenSER support more than one CPU, performance testing procedure

Hello all, I'm guessing if OpenSER supports more than one CPU. I ask for this to know if I can achieve to double the call per second (cps) rate or registration rate using two processors instead of one. I suppose that many of us have read the excellent "getting started 5" guide and use the scripts provided in this guide to start their first SER/OpenSER proxy. I would like to know if other users using these scripts would like to share their experience on the amount of users their OpenSER platform is able to handle, and on which hardware. It could be interesting if some users can post their OpenSER performance (cps, registration rate, number of user) with a particular "getting started" script, for example : "Authenticating ser.cfg", "call forwarding ser.cfg". Moreover, it could be great if we could think of a standard procedure to stress test the proxy. I have heard of Sipp, so do you think this program could be the base of this procedure? I understand that OpenSER performance greatly depends of the ser.cfg, nat configuration, avpops, the database backend, but I think that it could be great to delimit some standards configurations and show what we can expect on different hardware specifications. I'm wondering about this, cause I'd like to know if one or two OpenSER will easily support 30 000 to 40 000 users, call forwarding, redirection to voicemail; or will I have to buy a commercial product to do this. I have a small configuration (pstn gateway ser.cfg) running with 50 users, registering every 60s and a peak of 20cps (limited by my pstn connectivity), running like a charm on a small Intel P3 700 Mhz with 256MB (it's a small test box running on my desk). If somebody could help to define a test, it will be a pleasure to share my experience on an IBM HS20 blade with a bi Xeon 3,06 Ghz and 4GB of RAM. Thanks to all for the daily support, rod.