Re: [Linphone-users] Linphone console using 100% CPU

[Simon Morlat]

>
> funnily enough when I do a man readline, under "bugs" I found this:
>
> BUGS
>        It's too big and too slow.
>
> If the main loop is polling for input from the keyboard, wouldn't it be
> possible to use another function like scanf("%s",&inputbuffer);
> Such functions work under DOS, which is where I learnt C, I am unsure if
> the gcc libc supports this *shrugs*
Yes it is possible, but the problem is that linphone_core_iterate() must be 
called periodically (every 50 ms, even if nothing is entered in the command 
line). 
So if you want to do this, you should have a separate thread running scanf() 
and passing commands through a shared buffer to the main thread who is 
running the actual readline loop.

Simon

>
> Let me know what you think.
>
> Thanks!
> Alex
>
> Simon Morlat wrote:
> > Did you finally found a workaround for the terminal issue ? Looks like a
> > problem with readline support.
> >
> > - concerning oRTP: yes there is a difference between the lastest oRTP
> > released and the one embedded in linphone (my fault). The one embedded in
> > linphone tarball always works (guaranteed).
> >
> > About the cpu usage: which codec did you use ?
> > How powefull is your machine ? speex and gsm codecs are the most cpu
> > consuming. G711 Alaw and mulaw consume very few cpu: enable only these
> > two ones by editing the ~/.linphonerc config file.
> >
> > Simon
> >
> > Le Wednesday 23 April 2008 09:39:01 alex, vous avez écrit :
> >> Sorry to flood, but this is a seperate issue.
> >>
> >> Top output:
> >> ---------------
> >>
> >> last pid: 24352;  load averages:  1.15,  1.09,
> >> 1.03
> >> up 0+03:41:12  16:39:24
> >> 58 processes:  3 running, 55 sleeping
> >> CPU states: 30.8% user,  0.0% nice, 68.8% system,  0.4% interrupt,  0.0%
> >> idle
> >> Mem: 75M Active, 266M Inact, 94M Wired, 440K Cache, 112M Buf, 1552M Free
> >> Swap: 2007M Total, 2007M Free
> >>
> >>   PID USERNAME   THR PRI NICE   SIZE    RES STATE    TIME   WCPU COMMAND
> >> 24339 ahhyes       4  97    0  7032K  4064K RUN      0:35 104.79%
> >> linphonec
> >>
> >> Side effect is choppy audio. When cpu usage drops under 100% audio
> >> quality if fine for that period.
> >> Is this program doing something naughty in its main loop?
> >>
> >> How can I find out what is bogging things down.
> >>
> >>
> >>
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