No, this is not normal. But you almost certainly have some external I/O operation which is blocking the worker thread. There isn't much explanation otherwise.
This article (disclaimer: I wrote it) may help: http://www.evaristesys.com/blog/tuning-kamailio-for-high-throughput-and-performance/ -- Sent from mobile. Kindly excuse brevity and errors. _______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users