[Freeswitch-users] best freeswitch timer

[Peter Olsson]

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 at 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 at 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 at 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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