[Freeswitch-users] Tuning Up Freeswitch

Tue May 24 15:28:54 MSD 2011

How do you make that load balancing between profiles?

2011/5/24 Antonio Teixeira <eagle.antonio at gmail.com>

> 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 at 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 at 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 at flylabs.com>
>> To: "FreeSWITCH Users Help" <freeswitch-users at 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
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> > _______________________________________________
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>>
>> 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 at flylabs.com
>> Tel. +54 (11) 4982-2689, +1 (315) 688-7333
>>
>>
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>>
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>
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