Hi, I followed the suggestions in http://www.pjsip.org/trac/wiki/FAQ#pjsua-lib-perf. The difference is that I didn't put one conference bridge per call, but I'm going to use one per conference room. My application is a sip conference room, that has many small rooms of about 5 persons. I have this same application running on top of the pjsua with a single conference bridge, but the cpu usage is too high even for small amount of calls (when I have a big pjsua_config::max_calls) . I followed the sugestions like avoiding resample by keeping all sample rates the same (8 kHz), using the codec pcma or pcmu, disabling debug mode, disabling echo canceller, and using the settings PJ_CONFIG_MAXIMUM_SPEED inside config_site.h. If I compile the application with pjsua_config::max_calls at a small value (up to 100) the CPU usage is ok, around 50% (for up to 50~80 calls), but if I compile it to a large number like 500 calls I get a very high CPU usage even for a small amount of calls (like 5 or 7 calls). So I followed the suggestion in the wiki, but the problem remains the same. In my code I made only one conference bridge just to test one room alone. the conference bridge has 50 slots, enough for 15 calls to play wavs and make a conference. I created the conference bridge with the correct sampling rate (8 kHz), using linear resample and 16 bits. Even now that I don't use the conference bridge from pjsua, the value of pjsua_config::max_calls makes a big difference in my code, the same as before. One thing to note is that the high CPU only happens when I connect two calls, but not with wav players / recorder. So I can make a application that handles hundreds of calls if they don't need to be connected, but this is not the case. I've tryed different compilers already (making a sample code in plain C and one other in C++). My system is running on Linux debian 4.0 (etch) on a semprom 3000+ with 1024 MB RAM. Is there anything I'm missing here? If you want I can try to make a small sample code and post it, but I don't think it can get very small... Thanks for all help, Thiago Abra sua conta no Yahoo! Mail, o ?nico sem limite de espa?o para armazenamento! http://br.mail.yahoo.com/
