To give everyone an update: I enabled the mod_posix_timer last night and things appear to be running better today (fewer calls that have a sporadic choppy audio). The server load is lower, but it is not where I would like to see it. The load is around 10 on average. I think that this might be due to the fact that I have "enable-clock-nanosleep" set to true. I am going to try disabling this and see if the load decreases. The timer_test results are more consistent and regular; a lot closer to the 20ms that you would expect to see. Server Information: 2x AMD Opteron 6128 (8 cores) 8GB RAM CentOS release 5.7 Kernel: 2.6.18-274.7.1.el5 FreeSWITCH version: 1.2.0-rc2+git~20120625T203158Z~7dc9a9cacc+unclean~20120626T041419Z Feel free to provide other suggestions if you see fit. -- View this message in context: http://freeswitch-users.2379917.n2.nabble.com/Strange-timer-test-result-tp73... Sent from the freeswitch-users mailing list archive at Nabble.com.