I wouldn't worry too much about spikes of 200usec, do you have an actual problem with audio quality? /Peter 13 feb 2013 kl. 03:35 skrev "Dmitry Lysenko" <dvl36.ripe.nick@gmail.com>:
В Вто, 12/02/2013 в 18:36 -0600, Ken Rice пишет:
What you need to know is that if you are using a kernel with timerfd support you do not need to do anything to use it, the Core will figure it out automagically and use it. This means main line kernels 2.6.22 and later and you are good to go.
This automagic is really magic. But softtimer does not work well on my system. :( Kernel is latest (3.2.38-rt56 PREEMPT RT) and has all modern timing features as timerfd, clock_nanosleep, HR timer(1ns reported, 470ns measured by cyclictest -R),etc. --- switch.conf.xml --- <param name="enable-softtimer-timerfd" value="true"/> --- running freeswitch with -rp.
freeswitch@internal> timer_test 20 200 Avg: 19.999ms Total Time: 3999.985ms 2013-02-13 03:46:05.326648 [CONSOLE] mod_commands.c:827 Timer Test: 1 sleep 20 20204 2013-02-13 03:46:05.346428 [CONSOLE] mod_commands.c:827 Timer Test: 2 sleep 20 19779 2013-02-13 03:46:05.366429 [CONSOLE] mod_commands.c:827 Timer Test: 3 sleep 20 20001 2013-02-13 03:46:05.386427 [CONSOLE] mod_commands.c:827 Timer Test: 4 sleep 20 19999 2013-02-13 03:46:05.406427 [CONSOLE] mod_commands.c:827 Timer Test: 5 sleep 20 19998 2013-02-13 03:46:05.426644 [CONSOLE] mod_commands.c:827 Timer Test: 6 sleep 20 20218 2013-02-13 03:46:05.446428 [CONSOLE] mod_commands.c:827 Timer Test: 7 sleep 20 19783 2013-02-13 03:46:05.466428 [CONSOLE] mod_commands.c:827 Timer Test: 8 sleep 20 20000 2013-02-13 03:46:05.486428 [CONSOLE] mod_commands.c:827 Timer Test: 9 sleep 20 20000 2013-02-13 03:46:05.506428 [CONSOLE] mod_commands.c:827 Timer Test: 10 sleep 20 20001 2013-02-13 03:46:05.526644 [CONSOLE] mod_commands.c:827 Timer Test: 11 sleep 20 20216 ... ------ freeswitch@internal> timer_test 20 200 timerfd Avg: 19.999ms Total Time: 3999.983ms
2013-02-13 03:48:02.726442 [CONSOLE] mod_commands.c:827 Timer Test: 1 sleep 20 19985 2013-02-13 03:48:02.746437 [CONSOLE] mod_commands.c:827 Timer Test: 2 sleep 20 20000 2013-02-13 03:48:02.766442 [CONSOLE] mod_commands.c:827 Timer Test: 3 sleep 20 20003 2013-02-13 03:48:02.786433 [CONSOLE] mod_commands.c:827 Timer Test: 4 sleep 20 19998 2013-02-13 03:48:02.806433 [CONSOLE] mod_commands.c:827 Timer Test: 5 sleep 20 19997 2013-02-13 03:48:02.826433 [CONSOLE] mod_commands.c:827 Timer Test: 6 sleep 20 20000 2013-02-13 03:48:02.846432 [CONSOLE] mod_commands.c:827 Timer Test: 7 sleep 20 19999 2013-02-13 03:48:02.866432 [CONSOLE] mod_commands.c:827 Timer Test: 8 sleep 20 20000 2013-02-13 03:48:02.886432 [CONSOLE] mod_commands.c:827 Timer Test: 9 sleep 20 20002 2013-02-13 03:48:02.906432 [CONSOLE] mod_commands.c:827 Timer Test: 10 sleep 20 20000 2013-02-13 03:48:02.926434 [CONSOLE] mod_commands.c:827 Timer Test: 11 sleep 20 20000 ... ----- Tried many timing switch.conf options, but always spikes ~=200mks on soft timer. What I can do to make soft timer more precise? Thanks.
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