[Freeswitch-users] Latest master and latest v1.4 consume more CPU for conferences

Thu Jul 31 17:48:29 MSD 2014

Why do you have two person conferences instead of bridged calls?

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------------------------------
*From:* "Oleg Stolyar" <olegstolyar at gmail.com>
*To:* "FreeSWITCH Users Help" <freeswitch-users at lists.freeswitch.org>
*Sent:* 31 July, 2014 9:40 AM
*Subject:* Re: [Freeswitch-users] Latest master and latest v1.4 consume
more CPU for conferences

I am not sure we are on the same page with the numbers.  The relative
increase is about 30%-40%

The 0.3% is the absolute increase per conference.  CPU usage per single
two-member conference went from 1.2%-1.3% to 1.6%-2.0%

I am using AWS m3.xlarge instances with CentOS.  It's a 4-core system, so
the increase in CPU of usage of 30% would reduce the number of calls each
instance can take.  The increase itself would not necessarily be a huge
deal except if it's unexplained, it may be an indicator that something is
wrong.  As I said in my original email, the system running the recent code
also crashed less than 24 hours after starting to take live calls.  I
wanted to call out the increase as it seems likely to me (although by no
means certain) that the two are related.

The previous FreeSWITCH version I used have always been rock solid - this
was the first time FreeSWITCH crashed on me.

On Thu, Jul 31, 2014 at 6:21 AM, Brian West <brian at freeswitch.org> wrote:

> What kind of system are you running on where 0.2 to 0.3% CPU increase
> would really matter?
>
>
> On Wed, Jul 30, 2014 at 9:39 PM, Oleg Stolyar <olegstolyar at gmail.com>
> wrote:
>
>> Of course, and it did when I first made the rate change.  It went from 1%
>> CPU to the 1.2%-1.3% in the master from May.  The problem I am running into
>> now is that there is another jump in CPU with no additional config change.
>>
>> If nothing comes to mind, I will patch the May master with the fix for
>> WebRTC password size to fix my immediate issue and then try to find the
>> time to bisect git and pinpoint what happened.
>>
>>
>> On Wed, Jul 30, 2014 at 7:26 PM, Anthony Minessale <
>> anthony.minessale at gmail.com> wrote:
>>
>>> It is very likely to add to the cpu to transcode everything to 12000hz
>>>
>>>
>>>
>>> On Wed, Jul 30, 2014 at 6:12 PM, Oleg Stolyar <olegstolyar at gmail.com>
>>> wrote:
>>>
>>>> Hi Anthony, thank you for responding!
>>>>
>>>> I apologize for the previous email - I retracted it too soon - the CPU
>>>> simply jumped down for a bit then went back up.
>>>>
>>>> Here are the full versions for both the master where it happened and
>>>> v1.4.  Is this enough?
>>>>
>>>> FreeSWITCH Version 1.5.14b+git~20140729T132247Z~af64da86f2~64bit (git
>>>> af64da8 2014-07-29 13:22:47Z 64bit)
>>>> FreeSWITCH Version 1.4.7+git~20140724T230506Z~9d1c0f7f3d~64bit (git
>>>> 9d1c0f7 2014-07-24 23:05:06Z 64bit)
>>>>
>>>> It does not occur on this master:
>>>> FreeSWITCH Version 1.5.13b+git~20140522T175648Z~9d99c34682~64bit (git
>>>> 9d99c34 2014-05-22 17:56:48Z 64bit)
>>>>
>>>> I figured I would try this email before bisecting git but it will
>>>> likely be my next step.
>>>>
>>>> On the subject of the 12000 rate related bug - I'd love to discuss this
>>>> more with you - perhaps I'll try to get a little bit of your time at
>>>> ClueCon to just show you the problem.  It actually happens on every
>>>> platform I tested it on except Debian 7.  Just in the last couple of days I
>>>> reproduced it on Ubuntu 12.04 and Ubuntu 14.04.  I only mentioned it in
>>>> this thread in case the 12000 sample rate conference on 8000 codecs is
>>>> relevant to the CPU increase.
>>>>
>>>>
>>>>
>>>> On Wed, Jul 30, 2014 at 3:46 PM, Anthony Minessale <
>>>> anthony.minessale at gmail.com> wrote:
>>>>
>>>>> I'm not really sure how to pinpoint .8% cpu increase.  You would maybe
>>>>> have to git bisect?  I believe you already said this in another email then
>>>>> retracted it.  So with all the back and forth it starts to sound like you
>>>>> have misinformation.
>>>>>
>>>>> You can't use vague references like "latest" which changes every 10
>>>>> min.
>>>>> You need to try the most current master (TODAY then recite the hash)
>>>>> with a clean build and have a valid backtrace.
>>>>> The things you are saying are inconsistent so I think you need to rule
>>>>> out build skew from jumping around so many versions.
>>>>> Your 12000 thing also makes no sense at all and does not occur for
>>>>> anyone else which suggests you have environmental problem related to the
>>>>> way your system is setup.
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On Wed, Jul 30, 2014 at 5:31 PM, Oleg Stolyar <olegstolyar at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> Hi guys,
>>>>>>
>>>>>> I have my FreeSWITCH running a bunch of conferences with two or three
>>>>>> users using PCMU/8000 from all the user agents.  I have the conference
>>>>>> sample rate set to 12000 to get around a strange bug I reported a couple of
>>>>>> months ago.
>>>>>>
>>>>>> In my old installation with master from May 22 2014, the servers
>>>>>> consumed about 1.2%-1.3% CPU per two-person conference.
>>>>>>
>>>>>> In the latest master AND in the latest v1.4 it went up to about
>>>>>> 1.6%-2.0% CPU per two-person conference.  CPU usage by the FreeSWITCH
>>>>>> process also jumps up and down more.
>>>>>>
>>>>>> Additionally (not sure if it's related) the latest master crashed
>>>>>> less than 24 hours after it started taking live traffic.  I ma trying to
>>>>>> get the core dump and see if v1.4 also crashes but including the info here
>>>>>> in case it gives someone an idea of what's going on with the CPU.
>>>>>>
>>>>>> Any ideas as to what's causing the increased CPU usage would be
>>>>>> greatly appreciated.
>>>>>>
>>>>>>
>>>>>> _________________________________________________________________________
>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>> consulting at freeswitch.org
>>>>>> http://www.freeswitchsolutions.com
>>>>>>
>>>>>> 
>>>>>> 
>>>>>>
>>>>>> Official FreeSWITCH Sites
>>>>>> http://www.freeswitch.org
>>>>>> http://wiki.freeswitch.org
>>>>>> http://www.cluecon.com
>>>>>>
>>>>>> FreeSWITCH-users mailing list
>>>>>> FreeSWITCH-users at lists.freeswitch.org
>>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>>> UNSUBSCRIBE:
>>>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>>> http://www.freeswitch.org
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Anthony Minessale II       ♬ @anthmfs  ♬ @FreeSWITCH  ♬
>>>>>
>>>>> ☞ http://freeswitch.org/  ☞ http://cluecon.com/  ☞
>>>>> http://twitter.com/FreeSWITCH
>>>>> ☞ irc.freenode.net #freeswitch ☞ *http://freeswitch.org/g+
>>>>> <http://freeswitch.org/g+>*
>>>>>
>>>>> ClueCon Weekly Development Call
>>>>> ☎ sip:888 at conference.freeswitch.org  ☎ +19193869900
>>>>>
>>>>>
>>>>>
>>>>> _________________________________________________________________________
>>>>> Professional FreeSWITCH Consulting Services:
>>>>> consulting at freeswitch.org
>>>>> http://www.freeswitchsolutions.com
>>>>>
>>>>> 
>>>>> 
>>>>>
>>>>> Official FreeSWITCH Sites
>>>>> http://www.freeswitch.org
>>>>> http://wiki.freeswitch.org
>>>>> http://www.cluecon.com
>>>>>
>>>>> FreeSWITCH-users mailing list
>>>>> FreeSWITCH-users at lists.freeswitch.org
>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>> UNSUBSCRIBE:
>>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>> http://www.freeswitch.org
>>>>>
>>>>>
>>>>
>>>>
>>>> _________________________________________________________________________
>>>> Professional FreeSWITCH Consulting Services:
>>>> consulting at freeswitch.org
>>>> http://www.freeswitchsolutions.com
>>>>
>>>> 
>>>> 
>>>>
>>>> Official FreeSWITCH Sites
>>>> http://www.freeswitch.org
>>>> http://wiki.freeswitch.org
>>>> http://www.cluecon.com
>>>>
>>>> FreeSWITCH-users mailing list
>>>> FreeSWITCH-users at lists.freeswitch.org
>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>> UNSUBSCRIBE:
>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>> http://www.freeswitch.org
>>>>
>>>>
>>>
>>>
>>> --
>>> Anthony Minessale II       ♬ @anthmfs  ♬ @FreeSWITCH  ♬
>>>
>>> ☞ http://freeswitch.org/  ☞ http://cluecon.com/  ☞
>>> http://twitter.com/FreeSWITCH
>>> ☞ irc.freenode.net #freeswitch ☞ *http://freeswitch.org/g+
>>> <http://freeswitch.org/g+>*
>>>
>>> ClueCon Weekly Development Call
>>> ☎ sip:888 at conference.freeswitch.org  ☎ +19193869900
>>>
>>>
>>> _________________________________________________________________________
>>> Professional FreeSWITCH Consulting Services:
>>> consulting at freeswitch.org
>>> http://www.freeswitchsolutions.com
>>>
>>> 
>>> 
>>>
>>> Official FreeSWITCH Sites
>>> http://www.freeswitch.org
>>> http://wiki.freeswitch.org
>>> http://www.cluecon.com
>>>
>>> FreeSWITCH-users mailing list
>>> FreeSWITCH-users at lists.freeswitch.org
>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>>> http://www.freeswitch.org
>>>
>>>
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> 
>> 
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://wiki.freeswitch.org
>> http://www.cluecon.com
>>
>> FreeSWITCH-users mailing list
>> FreeSWITCH-users at lists.freeswitch.org
>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>> http://www.freeswitch.org
>>
>>
>
>
> --
>
> *Brian West*
> brian at freeswitch.org
>
>
> *Twitter: @FreeSWITCH , @briankwest*
> http://www.freeswitchbook.com
> http://www.freeswitchcookbook.com
>
> *T:*+19184209001 | *F:*+19184209002 | *M:*+1918424WEST (9378)
> *iNUM:*+883 5100 1420 9001 | *ISN:*410*543 | *Skype:*briankwest
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
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