Hi All, My level of expertise- It's the first time that I worked on Unix and C.
I am using the Opensips 1.8.3. *TL;DR* But hope someone reads. I am in deep trouble. For a project, I modified the Presence server to have REST wrapper over database calls and use REDIS as the cache (/instead of the in-memory hash/). I managed to do all this and the Presence Server was functioning properly. Problems surfaced when I started the performance testing. Even for just PUBLISH-200OK test the response times becomes close to 100-200ms at 50CPS and for SUBSCRIBE-NOTIFY (/with no presentities present/) the results are worst, no calls in 10ms range and very high number of calls in 500 ms range at 50CPS. Everything is local (Opensips & REDIS in one VM and Tomcat & MYSQL in another) I was testing from SIPP increasing the call rate by 10 every 5 seconds. I monitored the response times of Tomcat and they were in acceptable range (like 5ms) and same with REDIS. I am using connection pooling at all levels, meaning, to connect with REDIS, Tomcat and in REST service to connect to MYSQL. I confirmed this by checking the logs of REDIS and MYSQL, couldn't confirm for Tomcat. This means something I have done inOpensips that is notorious but I don't know how I can troubleshoot this. I tried to use tools such as Valgrind, gprof but couldn't make them work on Opensips (/The tutorials work though on standalone codes./) I did some test manually and found the snprintf( I was using heavily) takes higher CPU, so, I replaced it with a custom function, this reduced the number of calls in 500ms range of SUBSCRIBE-NOTIFY request but still the performance is uncomparable to the Original. Sorry for the long mail, I had to describe what I have done. I'll greatly appreciate any help, guidance to troubleshoot this. I have no local help available and this is last hope. It's over a month now since I am struggling to troubleshoot this. I'll be happy to share whatever details required. Thanks, Surya -- View this message in context: http://opensips-open-sip-server.1449251.n2.nabble.com/HELP-PLEASE-I-modified-Opensips-presence-server-and-performance-worsens-tp7600722.html Sent from the OpenSIPS - Devel mailing list archive at Nabble.com. _______________________________________________ Devel mailing list Devel@lists.opensips.org http://lists.opensips.org/cgi-bin/mailman/listinfo/devel
