[Freeswitch-users] CPU sys load issue

Fri Feb 24 02:06:18 MSK 2017

First why did you ever call sync_clock?

On Thu, Feb 23, 2017 at 4:51 PM, Antonio Silva <asilva at wirelessmundi.com>
wrote:

> Hi Brian,
>
> Not for today, the first time it happens was my first though something
> with the traffic, but i couldn't find any association with the type of
> traffic. Actually after restart fs i receive traffic from the same
> endpoints, same type of calls and the issue don't reproduce until next
> morning...
>
> There was something i was doing at 00 every day, the command "fsctl
> sync_clock"... well i just disabled it today. I've to wait until tomorrow
> to check the results.
>
> I just install fs compiled with tcmalloc, so if there is no problems i
> will put back the "sync_clock " command to really check if it could be the
> cause.
>
> Right now i'm quite lost on what to do more...
>
>
>
> On 02/23/2017 11:37 PM, Brian West wrote:
>
> Do you have pcaps of the traffic that may trigger this behavior?
>
> /b
>
>
> On Thu, Feb 23, 2017 at 2:58 PM, Antonio Silva <asilva at wirelessmundi.com>
> wrote:
>
>> Thanks Juan, that's it, i was missing the dev pkg.
>>
>>
>>
>> On 02/23/2017 08:34 PM, Juan Pablo Godoy Macari wrote:
>>
>> Antonio, you should install this:
>>
>> apt-get install libgoogle-perftools-dev
>>
>> Regards,
>>
>> 2017-02-23 16:26 GMT-03:00 Juan Pablo Godoy Macari <jpgodoy at redvoiss.net>
>> :
>>
>>> Try this: ./configure LIBS="-ltcmalloc"
>>>
>>> 2017-02-23 16:19 GMT-03:00 Antonio Silva <asilva at wirelessmundi.com>:
>>>
>>>> Hi,
>>>>
>>>> Did you compile fs in debian with tcmalloc?
>>>>
>>>> didn't work for me... do i miss something?
>>>>
>>>>
>>>> root at dev:/usr/src/freeswitch.git# apt-get install libtcmalloc-minimal4
>>>> root at dev:/usr/src/freeswitch.git# export LIBS=-ltcmalloc
>>>> root at dev:/usr/src/freeswitch.git# ./configure
>>>> checking for a BSD-compatible install... /usr/bin/install -c
>>>> checking whether build environment is sane... yes
>>>> checking for a thread-safe mkdir -p... /bin/mkdir -p
>>>> checking for gawk... no
>>>> checking for mawk... mawk
>>>> checking whether make sets $(MAKE)... yes
>>>> checking whether make supports nested variables... yes
>>>> checking whether make supports nested variables... (cached) yes
>>>> checking build system type... x86_64-unknown-linux-gnu
>>>> checking host system type... x86_64-unknown-linux-gnu
>>>> checking for style of include used by make... GNU
>>>> checking for gcc... gcc
>>>> checking whether the C compiler works... no
>>>> configure: error: in `/usr/src/freeswitch.git':
>>>> configure: error: C compiler cannot create executables
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On 02/23/2017 07:56 PM, Antonio Silva wrote:
>>>>
>>>> Hi Juan,
>>>>
>>>> Thanks for the tips!!
>>>>
>>>> Unfortunately i cannot test with -nosql option, i need to have the
>>>> sip_registration fill to be able to send options to natted endpoints. But i
>>>> don't think the issue is in db, i use postgres and to get better
>>>> performance from it i run it on tmpfs.
>>>>
>>>>
>>>> I read about tcmalloc, but from jira FS-7315, i get the idea that it
>>>> didn't change anything.. but i guess i can try it and post the results,
>>>> from the bt i do see some calls been done to malloc, but not sure if they
>>>> are locking or not.
>>>>
>>>> Regards,
>>>>
>>>>
>>>> On 02/23/2017 06:52 PM, Juan Pablo Godoy Macari wrote:
>>>>
>>>> Hello Antonio,
>>>>
>>>> I had the same issue, to fix it i tried many things written in this
>>>> mail list. Try running FS with -nosql option, if that doesn't work
>>>> recompile FS with tcmalloc (from google's perfomance tools).
>>>>
>>>> That did it for me.
>>>>
>>>> Regards,
>>>> Juan Pablo.
>>>>
>>>> 2017-02-23 13:26 GMT-03:00 Antonio Silva <asilva at wirelessmundi.com>:
>>>>
>>>>> Hi,
>>>>>
>>>>> i'm having an issue with FS that gets lock every morning  with cpu sys
>>>>> hitting 80%, because is limited in fs with min-idle, it could reach the
>>>>> 100%, so the calls are rejected by load, to solve the problem i kill fs
>>>>> and start it again.
>>>>>
>>>>> I discard a load issue, because after restarting freeswitch the system
>>>>> increases in number of sessions/cps and no problems at all until next
>>>>> day.... it's given me crazy... i've enough memory, lots of cores...
>>>>> after restart fs the system stays at less than 30% of cpu usage.
>>>>>
>>>>>
>>>>> Right now i have hpet as clocksource, transcoding is minimal (use
>>>>> inheric_codec, only happens because of different ptimes with some
>>>>> endpoints) .
>>>>>
>>>>>
>>>>> anyone having similar problem? or any tip i can do to debug this issue?
>>>>>
>>>>>
>>>>> For info the Jira ticket can be located at
>>>>> https://freeswitch.org/jira/browse/FS-9957,
>>>>>
>>>>> i've done a gcore, top, htop when the system is with high cpu sys but i
>>>>> can't figure the thread that is causing the issue... initial i thought
>>>>> it was because of module lua (most of my logic is done there), but
>>>>> today
>>>>> only 2 threads where running mod_lua when it happen.
>>>>>
>>>>>
>>>>> Appreciate the help.
>>>>>
>>>>>
>>>>> --
>>>>>
>>>>> Saludos / Regards / Cumprimentos,
>>>>> António silva
>>>>>
>>>>>
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>>>>
>>>>
>>>>
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>>>
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>>
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>
> --
>
> *Brian West* brian at freeswitch.org
>
> *Twitter: @FreeSWITCH , @briankwest*
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-- 

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