Hi guys, Trying to get to the bottom of some conference bridge issues I'm having with running the system in AWS. We're hearing a bunch of snap-crackle-pops in conference bridges and when I tcpdum on the server itself I see them in the RTP and see RTP timestamp problems. I've run the following: timer_test freeswitch@127.0.0.1@internal> timer_test 120 10 Avg: 120.004ms Total Time: 1200.315ms 2011-11-16 10:25:56.121131 [CONSOLE] mod_commands.c:461 Timer Test: samplecount after init: 1 freeswitch@127.0.0.1@internal> 2011-11-16 10:25:56.219163 [CONSOLE] mod_commands.c:466 Timer Test: samplecount after first step: 2 2011-11-16 10:25:56.339195 [CONSOLE] mod_commands.c:475 Timer Test: 1 sleep 120 120006 2011-11-16 10:25:56.459259 [CONSOLE] mod_commands.c:475 Timer Test: 2 sleep 120 120040 2011-11-16 10:25:56.579259 [CONSOLE] mod_commands.c:475 Timer Test: 3 sleep 120 119976 2011-11-16 10:25:56.699291 [CONSOLE] mod_commands.c:475 Timer Test: 4 sleep 120 120007 2011-11-16 10:25:56.819318 [CONSOLE] mod_commands.c:475 Timer Test: 5 sleep 120 120001 2011-11-16 10:25:56.939375 [CONSOLE] mod_commands.c:475 Timer Test: 6 sleep 120 120031 2011-11-16 10:25:57.059397 [CONSOLE] mod_commands.c:475 Timer Test: 7 sleep 120 119996 2011-11-16 10:25:57.179422 [CONSOLE] mod_commands.c:475 Timer Test: 8 sleep 120 119994 2011-11-16 10:25:57.299461 [CONSOLE] mod_commands.c:475 Timer Test: 9 sleep 120 120005 2011-11-16 10:25:57.419478 [CONSOLE] mod_commands.c:475 Timer Test: 10 sleep 120 119991 test_time freeswitch@127.0.0.1@internal> time_test 600 10 test 1 sleep 600 1592 test 2 sleep 600 986 test 3 sleep 600 1018 test 4 sleep 600 980 test 5 sleep 600 1005 test 6 sleep 600 1000 test 7 sleep 600 972 test 8 sleep 600 990 test 9 sleep 600 1006 test 10 sleep 600 994 avg 1054 For kernel: [root@openuc bin]# uname -r 2.6.21.7-2.fc8xen CONFIG_HZ: [root@openuc bin]# grep CONFIG_HZ /boot/config-* /boot/config-2.6.16.33-xenU-x86_64:CONFIG_HZ_100=y /boot/config-2.6.16.33-xenU-x86_64:# CONFIG_HZ_250 is not set /boot/config-2.6.16.33-xenU-x86_64:# CONFIG_HZ_1000 is not set /boot/config-2.6.16.33-xenU-x86_64:CONFIG_HZ=100 /boot/config-2.6.18-164.15.1.el5.centos.plus:# CONFIG_HZ_100 is not set /boot/config-2.6.18-164.15.1.el5.centos.plus:# CONFIG_HZ_250 is not set /boot/config-2.6.18-164.15.1.el5.centos.plus:CONFIG_HZ_1000=y /boot/config-2.6.18-164.15.1.el5.centos.plus:CONFIG_HZ=1000 /boot/config-2.6.21-2952.fc8xen:# CONFIG_HZ_100 is not set /boot/config-2.6.21-2952.fc8xen:# CONFIG_HZ_250 is not set /boot/config-2.6.21-2952.fc8xen:# CONFIG_HZ_300 is not set /boot/config-2.6.21-2952.fc8xen:CONFIG_HZ_1000=y /boot/config-2.6.21-2952.fc8xen:CONFIG_HZ=1000 are the xenU kernel settings screwing me here? Thanks, Mike -- There are 10 kinds of people in this world, those who understand binary and those who don't. mpicher@gmail.com blog: http://www.sipxecs.info call: sip:mpicher@sipxecs.info