Sorry To Revive A Old Thread.

But this could be interesting for some :

Problem :
I started to get some signaling problems with some calls :

The SIP trunk was passing me 180 Ringing but the local station was not ringing , after a wire shark sniff i noticed that packets were coming out of order.
Before calling our ISP , i used wire shark on the FS Public Interface , and the packets were coming in the correct order but FS would take up to 5 seconds to route them into the private network and would mix the signaling.
So debug started , there was lots of CPU + Memory , IO was not a problem , network was also fine with 0 packet loss .

So i turned into FS , i noticed this happened on a specific call volume , after reading and reading i noticed a line in the wiki stating that libsofia profile is single threaded .

Solution :

Start Another Profile on a different port Ex:  5081 and route your calls trough that profile i noticed an improvement right away.

originate sofia/2_profile/XXXXXX@mygatewayip

Now i'm using profiles to load balance calls inside FS.

P.S - I know this can be pretty obvious for some but some of us are still new to FS so i hope this can help someone out :D.
P.S2 - Also if a veteran thinks this is the wrong approach please respond so we can all improve.


Regards
Antonio teixeira



2011/4/27 Madovsky <infos@madovsky.org>
for info I'm using the old Fedora10 64bits
and everything is working fine with fq at 1000hz


----- Original Message -----
From: "Ariel Monaco" <arielmonaco@flylabs.com>
To: "FreeSWITCH Users Help" <freeswitch-users@lists.freeswitch.org>
Sent: Tuesday, April 26, 2011 8:24 PM
Subject: Re: [Freeswitch-users] Tuning Up Freeswitch


We had high CPU utilization peaks in the past, which lead to some audio
issues (clipping). We were using debian at that time, which was a
customer-side requirement.

I'm not a kernel guru but I remember this had something to do with kernel
timer cycles and the issue was address by adding "divider=10" or
"divider=100" as a kernel's boot loader option.

My 2 cents,
Ariel

On Apr 21, 2011, at 13:24 , Antonio Teixeira wrote:

> Hello List.
>
> I'm currently integrating an IVR in python together with freeswitch using
> mod_python and ESL and my life has been well until ...
> The flow of calls went over 80 simultaneous calls.
> Now freeswitch starts sending packets with huge delays ( even when
> establishing the call , mainly the 200 ) and firing up the IVR with tons
> of delay up to 20 seconds.
>
> So i searched the wiki forums and mailing list:
>
> Put freeswitch on a diet , trimmed modules.conf
> Played with the ulimit stuff.
> Played with the IVRS to reduce load to a minimum and i was able to squeeze
> more 5 calls of performance.
>
> The problem is :
>
> Top shows
> top - 16:14:33 up 35 days,  8:15,  3 users,  load average: 1.92, 1.76,
> 1.78
> Tasks: 133 total,   1 running, 132 sleeping,   0 stopped,   0 zombie
> Cpu(s):  1.4%us,  3.3%sy,  0.0%ni, 94.6%id,  0.0%wa,  0.3%hi,  0.5%si,
> 0.0%st
> Mem:   8193336k total,  1639156k used,  6554180k free,   177208k buffers
> Swap: 19534904k total,        0k used, 19534904k free,  1062272k cached
>
>   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
> 31361 yadayada      20   0  716m 164m 9628 S   73  2.1 155:17.85
> freeswitch
>
> Freeswitch goes up to 150 % and puff there goes the MOS down to 0.
>
>
> Some basic System Info :
> Debian 6.0 ( i heard the timming module is affected by Debian , but if the
> CPU % gets lower than 95% everything will be more stable)
> Python 2.5
>
> 2 x Intel(R) Xeon(R) CPU           E5506  @ 2.13GHz
> 8 GB of Ram
>
> as you can see 94 % of the "Cpu Power" is sleeping :\
>
>
> It appears freeswitch is only capable of using let's say "one cpu"/thread
> ??
> Do you guys recommend simply starting more instances or redoing the IVR
> stuff.
>
>
> Hope you guys can help me out.
>
> Thanks
> António Teixeira
>
>
>
>
>
>
>
>
>
>
>
>
> _______________________________________________
> FreeSWITCH-users mailing list
> FreeSWITCH-users@lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org

Ariel Monaco – Systems Engineer
Flylabs - Open Source Telecommunications and  IT Consultants

Address: Potosí 4456 C1199ACP - Buenos Aires - Argentina
Web: http://flylabs.com
E-Mail: arielmonaco@flylabs.com
Tel. +54 (11) 4982-2689, +1 (315) 688-7333


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