[Freeswitch-users] High load kernel
Agustí Ubalde
aubalde at presenceco.com
Mon May 2 19:44:05 MSD 2016
Hi Giacomo,
It remain "stuck" polling until Freeswitch is restarted.
Regards,
*PRESENCE TECHNOLOGY*
*Agustí Ubalde Bellot*
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2016-05-02 17:20 GMT+02:00 Giacomo Vacca <giacomo.vacca at gmail.com>:
> Hi Agustì,
> does the thread free CPU as soon as the number of concurrent calls goes
> down, or does it remain "stuck" polling?
>
> I don't want to provide a red herring here but I had a slightly similar
> issue, reported in https://freeswitch.org/jira/browse/FS-8726
>
> The call thread that was saturating the CPU was tracked back by looking at
> the file descriptor shown by strace, then with netstat identifying the RTP
> port in use and then in the logs to find the session using that port.
>
> Hope this can provide some additional ideas,
>
> Giacomo
>
> On 2 May 2016 at 17:03, Agustí Ubalde <aubalde at presenceco.com> wrote:
>
>> Hi Marek,
>>
>> Here are the results of the checks:
>>
>> ======================================================================
>> *# top*
>> ======================================================================
>> top - 10:16:15 up 10 days, 46 min, 3 users, load average: 1.13, 0.66,
>> 0.27
>> Tasks: 179 total, 1 running, 178 sleeping, 0 stopped, 0 zombie
>> Cpu0 : 0.0%us, 0.0%sy, 15.7%ni, 84.3%id, 0.0%wa, 0.0%hi, 0.0%si,
>> 0.0%st
>> Cpu1 : 0.0%us, 0.7%sy, 9.3%ni, 90.0%id, 0.0%wa, 0.0%hi, 0.0%si,
>> 0.0%st
>> Cpu2 : 0.0%us, 0.0%sy, 9.6%ni, 90.4%id, 0.0%wa, 0.0%hi, 0.0%si,
>> 0.0%st
>> Cpu3 : 0.0%us, 1.0%sy, 6.6%ni, 92.5%id, 0.0%wa, 0.0%hi, 0.0%si,
>> 0.0%st
>> *Cpu4 : 0.0%us, 72.7%sy, 27.3%ni, 0.0%id, 0.0%wa, 0.0%hi, 0.0%si,
>> 0.0%st* -----> HIGH CPU SYSTEM LOAD
>> Cpu5 : 0.0%us, 0.0%sy, 14.2%ni, 85.8%id, 0.0%wa, 0.0%hi, 0.0%si,
>> 0.0%st
>> Cpu6 : 0.0%us, 1.4%sy, 8.2%ni, 90.4%id, 0.0%wa, 0.0%hi, 0.0%si,
>> 0.0%st
>> Cpu7 : 0.0%us, 0.0%sy, 9.4%ni, 90.6%id, 0.0%wa, 0.0%hi, 0.0%si,
>> 0.0%st
>> Mem: 1921520k total, 995092k used, 926428k free, 185628k buffers
>> Swap: 786428k total, 0k used, 786428k free, 533952k cached
>> ======================================================================
>>
>> ======================================================================
>> *# ps -AL | grep freeswitch*
>> ======================================================================
>> 27653 27653 ? 00:00:00 freeswitch
>> 27653 27654 ? 00:00:00 freeswitch
>> 27653 27656 ? 00:00:08 freeswitch
>> 27653 27657 ? 00:00:01 freeswitch
>> 27653 27660 ? 00:00:00 freeswitch
>> 27653 27661 ? 00:00:01 freeswitch
>> 27653 27662 ? 00:00:00 freeswitch
>> 27653 27663 ? 00:00:00 freeswitch
>> 27653 27666 ? 00:00:03 freeswitch
>> 27653 27667 ? 00:00:00 freeswitch
>> 27653 27668 ? 00:00:00 freeswitch
>> 27653 27669 ? 00:00:00 freeswitch
>> 27653 27670 ? 00:00:00 freeswitch
>> 27653 27671 ? 00:00:00 freeswitch
>> 27653 27672 ? 00:00:00 freeswitch
>> 27653 27673 ? 00:00:00 freeswitch
>> *27653 27674 ? 01:23:45 freeswitch* -----> PROCESS TO CHECK
>> 27653 27675 ? 00:00:00 freeswitch
>> 27653 27676 ? 00:00:00 freeswitch
>> 27653 27677 ? 00:00:00 freeswitch
>> 27653 27678 ? 00:00:00 freeswitch
>> 27653 27679 ? 00:00:00 freeswitch
>> 27653 27680 ? 00:00:00 freeswitch
>> 27653 27681 ? 00:00:00 freeswitch
>> 27653 27682 ? 00:00:00 freeswitch
>> 27653 27683 ? 00:00:00 freeswitch
>> 27653 27684 ? 00:00:00 freeswitch
>> 27653 27685 ? 00:00:00 freeswitch
>> 27653 27686 ? 00:00:00 freeswitch
>> 27653 27692 ? 00:00:00 freeswitch
>> 27653 27693 ? 00:00:04 freeswitch
>> 27653 27694 ? 00:00:00 freeswitch
>> 27653 27695 ? 00:00:00 freeswitch
>> 27653 27719 ? 00:00:00 freeswitch
>> 27653 27725 ? 00:01:00 freeswitch
>> 27653 27726 ? 00:04:52 freeswitch
>> 27653 27738 ? 00:04:42 freeswitch
>> 27653 27739 ? 00:00:55 freeswitch
>> 27653 27741 ? 00:04:40 freeswitch
>> 27653 27743 ? 00:00:52 freeswitch
>> 27653 27744 ? 00:04:39 freeswitch
>> 27653 27745 ? 00:00:55 freeswitch
>> 27653 27748 ? 00:00:58 freeswitch
>> 27653 27749 ? 00:04:28 freeswitch
>> 27653 27751 ? 00:04:38 freeswitch
>> 27653 27752 ? 00:00:52 freeswitch
>> 27653 27764 ? 00:00:52 freeswitch
>> 27653 27765 ? 00:04:32 freeswitch
>> 27653 27767 ? 00:04:37 freeswitch
>> 27653 27768 ? 00:00:54 freeswitch
>> 27653 27769 ? 00:04:36 freeswitch
>> 27653 27770 ? 00:00:52 freeswitch
>> 27653 27773 ? 00:04:38 freeswitch
>> 27653 27774 ? 00:00:54 freeswitch
>> 27653 27776 ? 00:04:37 freeswitch
>> 27653 27777 ? 00:00:49 freeswitch
>> 27653 27780 ? 00:04:36 freeswitch
>> 27653 27781 ? 00:00:48 freeswitch
>> 27653 27782 ? 00:01:15 freeswitch
>> 27653 27783 ? 00:04:05 freeswitch
>> 27653 27785 ? 00:04:26 freeswitch
>> 27653 27786 ? 00:00:51 freeswitch
>> 27653 27794 ? 00:01:00 freeswitch
>> 27653 27795 ? 00:03:58 freeswitch
>> 27653 27797 ? 00:04:24 freeswitch
>> 27653 27798 ? 00:00:48 freeswitch
>> 27653 27801 ? 00:04:14 freeswitch
>> 27653 27802 ? 00:00:43 freeswitch
>> 27653 27804 ? 00:01:25 freeswitch
>> 27653 27805 ? 00:03:20 freeswitch
>> 27653 27807 ? 00:01:58 freeswitch
>> 27653 27809 ? 00:04:10 freeswitch
>> 27653 27810 ? 00:00:44 freeswitch
>> 27653 27813 ? 00:04:12 freeswitch
>> 27653 27814 ? 00:00:44 freeswitch
>> 27653 27823 ? 00:04:02 freeswitch
>> 27653 27824 ? 00:00:36 freeswitch
>> 27653 27838 ? 00:00:56 freeswitch
>> 27653 27839 ? 00:02:58 freeswitch
>> 27653 27870 ? 00:02:55 freeswitch
>> 27653 27871 ? 00:00:32 freeswitch
>> 27653 27893 ? 00:02:37 freeswitch
>> 27653 27894 ? 00:00:06 freeswitch
>> 27653 27927 ? 00:02:24 freeswitch
>> 27653 27929 ? 00:00:26 freeswitch
>> 27653 27948 ? 00:02:23 freeswitch
>> 27653 27949 ? 00:00:26 freeswitch
>> 27653 27955 ? 00:02:18 freeswitch
>> 27653 27956 ? 00:00:25 freeswitch
>> 27653 27957 ? 00:02:19 freeswitch
>> 27653 27958 ? 00:00:26 freeswitch
>> 27653 27963 ? 00:00:30 freeswitch
>> 27653 27964 ? 00:01:59 freeswitch
>> 27653 27968 ? 00:02:09 freeswitch
>> 27653 27969 ? 00:00:25 freeswitch
>> 27653 27970 ? 00:02:08 freeswitch
>> 27653 27971 ? 00:00:24 freeswitch
>> 27653 27983 ? 00:00:27 freeswitch
>> 27653 27984 ? 00:01:48 freeswitch
>> 27653 27989 ? 00:01:32 freeswitch
>> 27653 27990 ? 00:00:06 freeswitch
>> 27653 27995 ? 00:01:31 freeswitch
>> 27653 27996 ? 00:00:17 freeswitch
>> 27653 27997 ? 00:01:42 freeswitch
>> 27653 27999 ? 00:00:19 freeswitch
>> 27653 28001 ? 00:01:38 freeswitch
>> 27653 28002 ? 00:00:13 freeswitch
>> 27653 28006 ? 00:00:26 freeswitch
>> 27653 28007 ? 00:00:45 freeswitch
>> 27653 28010 ? 00:01:32 freeswitch
>> 27653 28011 ? 00:00:16 freeswitch
>> 27653 28022 ? 00:00:14 freeswitch
>> 27653 28047 ? 00:01:00 freeswitch
>> 27653 28048 ? 00:00:10 freeswitch
>> ======================================================================
>>
>> ======================================================================
>> *# strace -c -p 27674*
>> ======================================================================
>> Process 27674 attached - interrupt to quit
>> ^CProcess 27674 detached
>> % time seconds usecs/call calls errors syscall
>> ------ ----------- ----------- --------- --------- ----------------
>> * 94.08 18.452455 0 63874778 epoll_wait*
>> 5.90 1.156911 414 2797 nanosleep
>> 0.01 0.001940 1 3041 140 read
>> 0.01 0.001000 25 40 6 futex
>> 0.00 0.000655 0 1408 21 write
>> 0.00 0.000449 0 1389 sendto
>> 0.00 0.000356 0 1348 recvfrom
>> 0.00 0.000031 2 15 recvmsg
>> 0.00 0.000031 1 33 9 shutdown
>> 0.00 0.000029 1 38 mprotect
>> 0.00 0.000025 3 10 socket
>> 0.00 0.000023 2 10 bind
>> 0.00 0.000000 0 38 close
>> 0.00 0.000000 0 2 madvise
>> 0.00 0.000000 0 5 5 connect
>> 0.00 0.000000 0 30 accept
>> 0.00 0.000000 0 10 getsockname
>> 0.00 0.000000 0 140 setsockopt
>> 0.00 0.000000 0 9 getsockopt
>> 0.00 0.000000 0 208 fcntl
>> 0.00 0.000000 0 68 epoll_ctl
>> ------ ----------- ----------- --------- --------- ----------------
>> 100.00 19.613905 63885417 181 total
>> ======================================================================
>>
>>
>> Regards,
>>
>> *PRESENCE TECHNOLOGY*
>> *Agustí Ubalde Bellot*
>> Chief Developer
>> C/ Comte Urgell 240 3A
>> Barcelona 08036
>> aubalde at presenceco.com
>>
>> Ph: +34 93 10 10 300
>> Fx: +34 93 10 10 333
>>
>> *www.presenceco.com* <http://www.presenceco.com/>
>>
>> *Follow us on:*
>>
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>>
>> 2016-05-02 13:38 GMT+02:00 Marek Červenka <cervajs at fpf.slu.cz>:
>>
>>> Dne 28.4.2016 v 20:15 Michael Jerris napsal(a):
>>>
>>> Strongly advise to be using latest release in 1.6, particularly for
>>> anything webrtc related.
>>> Strongly advice to use Debian 8, there were significant known
>>> performance problems on CentOS 6
>>>
>>>
>>> can you send us link with description of centos6 performance problems?
>>> thanks
>>>
>>>
>>>
>>> On Apr 28, 2016, at 6:41 AM, Agustí Ubalde <aubalde at presenceco.com>
>>> wrote:
>>>
>>> Which OS, FS revision, platform, hardware, ram, cpu, etc are you using?
>>>
>>>
>>> - CentOS 6.5 64b virutalized (ESXi)
>>> - Freeswitch 1.4.26
>>> - 8vCPU - 4GB RAM
>>>
>>>
>>> Which traffic are you handling?
>>>
>>>
>>> - 60-70 active calls (WebRTC extensions)
>>>
>>>
>>> What are exactly the simptoms?
>>>
>>>
>>> - top command shows high system cpu load constantly (CPU 3)
>>>
>>>
>>> How you get them? Is that reproducible?
>>>
>>>
>>> - Always whit the same load (60-70 calls)
>>>
>>>
>>> --
>>> ---------------------------------------
>>> Marek Cervenka
>>> =======================================
>>>
>>>
>>> _________________________________________________________________________
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>>
>>
>>
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>
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