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

Thu Jul 31 19:54:07 MSD 2014

Well, it gets a little complicated.  I need to enable multiple simultaneous
eavesdroppers and the ability to include one extra person into the
conversation.  Let's call it Leg C.  Then Leg B should be able to drop off
leaving Leg A and Leg B talking.  Additionally I need the ability for Leg B
and Leg C to talk to each other putting Leg A on hold.

I considered using the eavesdrop tool for this which would give me the
ability for the eavesdropper to talk to Leg A, Leg B or both.  However, I
was not sure that having Leg A drop off would work and ultimately decided
that the simplicity of implementing this with conferences  is worth the CPU
hit.

Again, the only reason I am concerned with the current additional CPU jump
is because it's unexplained and I suspect it has something to do with the
crash I experienced.

On Thu, Jul 31, 2014 at 8:35 AM, Steven Ayre <steveayre at gmail.com> wrote:

> Just one extra?
>
> https://wiki.freeswitch.org/wiki/Misc._Dialplan_Tools_three_way
>
>
> On 31 July 2014 15:04, Oleg Stolyar <olegstolyar at gmail.com> wrote:
>
>> That's a whole different discussion.  Mostly because I need the ability
>> to easily add another person to the call.
>>
>>
>> On Thu, Jul 31, 2014 at 6:48 AM, Russell Treleaven <
>> rtreleaven at bunnykick.ca> wrote:
>>
>>> Why do you have two person conferences instead of bridged calls?
>>>
>>> Sent from my BlackBerry® PlayBook™
>>> www.blackberry.com
>>>
>>> ------------------------------
>>> *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
>>>> 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
>>>
>>>
>>
>> _________________________________________________________________________
>> 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
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> http://www.freeswitch.org
>
>
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