[Freeswitch-users] Jitter and dropping MOS score

[Christoph Russow]

Hi all,

thanks for all the input.

We could sort out the Jitter/MOS problem as a temporary Network problem 
with one of our carriers.

about the CPU:
how should i make sure that it is really eating 100% CPU?

"ps aux" shows the freeswitch process at arround 30% so it seems to not 
really consume 100%cpu as htop still tells me.

USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
freeswi+ 30074 30.6  3.9 8582604 636456 ?      SNsl Sep22 6431:58 
/usr/bin/freeswitch -ncwait -u freeswitch -g emtex-files -nonat

best regards
Christoph

Am 06.10.21 um 12:33 schrieb Dragos Oancea:
> if it really consumes 100% CPU with few calls then it's abnormal.
> kill it with SIGABRT (make sure it will dump core before that), get a 
> backtrace with gdb and open a github issue.
> before doing this you need to make sure it's really eating 100 % CPU, 
> this screenshot is not very relevant.
> Also, you need to make sure you don't have real packet loss. Perhaps 
> it's a matter of dimensioning, eg: how many simultaneous calls do you 
> expect to have on that hardware, what codec, etc.
> 
> On Wed, Oct 6, 2021 at 2:26 AM Christoph Russow <russow at emtex.de 
> <mailto:russow at emtex.de>> wrote:
> 
>     Hi all,
> 
>     we are currently experiencing jitter and dropping MOS score on an
>     increasing amount of calls on our system.
> 
>     i can't see any increased load on our system (neither CPU nor I/O wise).
> 
>     Current stats:
> 
>     ~ 15Mbit/s network traffic (on a 1Gbit/s network)
>     load average: 1,10, 0,82, 0,91 (16 core machine)
>     memory used: 2,26GB/16GB
> 
>     freeswitch at lc1> status
>     UP 0 years, 12 days, 13 hours, 30 minutes, 24 seconds, 649
>     milliseconds,
>     831 microseconds
>     FreeSWITCH (Version 1.10.1 -release-12-f9990221e6 64bit) is ready
>     137634 session(s) since startup
>     218 session(s) - peak 245, last 5min 222
>     1 session(s) per Sec out of max 30, peak 8, last 5min 2
>     1000 session(s) max
>     min idle cpu 0.00/95.37
>     Current Stack Size/Max 244K/244K
> 
>     System ist not virtualized.
> 
>     the only "strange" thing i see is the freeswitch "main"process that
>     consumes (according to htop) >=100% cpu (see attached screenshot).
>     Can this be the problem? if yes what can i do against it.
> 
>     if not what are possible bottlenecks i should weed out?
> 
>     if you need any additional informations to help me sort out this
>     problem
>     please don't hesitate to ask.
> 
>     Thanks in advance and best regards
>     Christoph
> 
> 
> 
>     -- 
>     ________________________________________________________________
> 
>     EMTEX GmbH
>     Christoph Russow
>     Software Engineer
> 
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> _________________________________________________________________________
> 
> The FreeSWITCH project is sponsored by SignalWire https://signalwire.com
> Enhance your FreeSWITCH install with disruptive priced SMS and PSTN services.
> Build your next product on our scalable cloud platform.
> 
> Join our online community to chat in real time https://signalwire.community
> 
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