[Freeswitch-users] What FS is doing when idle?

Sergey Okhapkin sos at sokhapkin.dyndns.org
Tue Mar 2 10:16:30 PST 2010


I see the same problem on 4 absolutely different boxes with different linux 
kernels.

On Tuesday 02 March 2010, Anthony Minessale wrote:
> Well, there you go.
> your box is having a hard time doing a simple 1ms sleep in a loop for the
> centralized core timer.
>
> It's either your kernel or your box.  My box and every box I have do not
> have that problem so you may want to consider a new one.
>
> FreeSWITCH is FREE so give it a good home.
>
> The good news is, you can make upwards of 1500 calls on that same 2% of cpu
> usage.
>
>
>
> On Tue, Mar 2, 2010 at 11:51 AM, Sergey Okhapkin
>
> <sos at sokhapkin.dyndns.org>wrote:
> > FS spends half of CPU here (main thread):
> >
> > #0  0xffffe424 in __kernel_vsyscall ()
> > #1  0xb7a82781 in select () from /lib/libc.so.6
> > #2  0xb7e392eb in apr_sleep () from
> > /opt/freeswitch/lib/libfreeswitch.so.1 #3  0x00000000 in ?? ()
> >
> > The second half is spent here:
> >
> > #0  0xb7d50946 in clock_nanosleep () from /lib/librt.so.1
> > #1  0xb7e0fa7d in softtimer_runtime () at src/switch_time.c:155
> > #2  0xb7dc585a in switch_loadable_module_exec (thread=0xb7101fb8,
> > obj=0xb7101da8) at src/switch_loadable_module.c:96
> > #3  0xb7e379a8 in dummy_worker () from
> > /opt/freeswitch/lib/libfreeswitch.so.1
> >
> > On Tuesday 02 March 2010, Moises Silva wrote:
> > > ps -LlFm -p `pidof freeswitch`
> > >
> > > That shows you CPU usage per FreeSWITCH thread
> > >
> > > Then
> > >
> > > pstack `pidof freeswitch`
> > >
> > > That shows the stack trace of every FreeSWITCH thread and then you can
> >
> > find
> >
> > > exactly what is doing.
> >
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