Asterisk Uses 105% CPU

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Asterisk Users 5 Comments

Hello,

Using Asterisk 1.8.24 on CentOS 6.4

I notice that the asterisk process is using between 105 en 110 % CPU :

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1765 root 20 0 2508m 102m 8864 S 105.8 2.7 102:11.55 asterisk
2682 mysql 20 0 627m 29m 6204 S 0.7 0.8 1:59.51 mysqld
1 root 20 0 19228 1508 1220 S 0.0 0.0 0:00.75 init

What can be causing such a high load of the asterisk proces ??

There are about 35 calls with G711a codec, no translation.

Kind regards, Jonas.

5 thoughts on - Asterisk Uses 105% CPU

  • I want to add some more information. Maybe someone knows how to help me with this information :

    sip*CLI> core show threads
    0x7f98f87fd700 pbx_thread started at [ 5597] pbx.c ast_pbx_start()
    0x7f98f8ae5700 pbx_thread started at [ 5597] pbx.c ast_pbx_start()
    0x7f98f9229700 pbx_thread started at [ 5597] pbx.c ast_pbx_start()
    0x7f98f9609700 netconsole started at [ 1423] asterisk.c listener()
    0x7f98f8971700 pbx_thread started at [ 5597] pbx.c ast_pbx_start()
    0x7f98f8ec5700 pbx_thread started at [ 5597] pbx.c ast_pbx_start()
    0x7f98f8e49700 pbx_thread started at [ 5597] pbx.c ast_pbx_start()
    0x7f98f9a65700 pbx_thread started at [ 5597] pbx.c ast_pbx_start()
    0x7f98f97f9700 pbx_thread started at [ 5597] pbx.c ast_pbx_start()
    0x7f98f8a69700 pbx_thread started at [ 5597] pbx.c ast_pbx_start()
    0x7f98f8dcd700 pbx_thread started at [ 5597] pbx.c ast_pbx_start()
    0x7f98f8d51700 pbx_thread started at [ 5597] pbx.c ast_pbx_start()
    0x7f98f9ae1700 shaun_of_the_dead started at [ 2141] app.c ast_safe_fork()
    0x7f98f9b5d700 inotify_daemon started at [ 334]
    stdtime/localtime.c add_notify()
    0x7f98f9def700 autoservice_run started at [ 219] autoservice.c ast_autoservice_start()
    0x7f98f9ee7700 monitor_sig_flags started at [ 4097] asterisk.c main()
    0x7f98f9f63700 tps_processing_function started at [ 468]
    taskprocessor.c ast_taskprocessor_get()
    0x7f98f9fdf700 cleanup started at [ 414] pbx_realtime.c load_module()
    0x7f98fa05b700 scan_thread started at [ 885] pbx_spool.c load_module()
    0x7f98fa0d7700 do_monitor started at [ 4684] chan_unistim.c restart_monitor()
    0x7f98fa153700 tps_processing_function started at [ 468]
    taskprocessor.c ast_taskprocessor_get()
    0x7f98fa1cf700 process_clearcache started at [ 2265] pbx_dundi.c start_network_thread()
    0x7f98fa2c7700 network_thread started at [ 2263] pbx_dundi.c start_network_thread()
    0x7f98fa24b700 process_precache started at [ 2264] pbx_dundi.c start_network_thread()
    0x7f98fa343700 do_monitor started at [ 1167] chan_phone.c restart_monitor()
    0x7f98fa3bf700 lock_broker started at [ 509] func_lock.c load_module()
    0x7f98fa43b700 network_thread started at [12310] chan_iax2.c start_network_thread()
    0x7f98fa4b7700 iax2_process_thread started at [12288] chan_iax2.c start_network_thread()
    0x7f98fa533700 iax2_process_thread started at [12288] chan_iax2.c start_network_thread()
    0x7f98fa5af700 iax2_process_thread started at [12288] chan_iax2.c start_network_thread()
    0x7f98fa62b700 iax2_process_thread started at [12288] chan_iax2.c start_network_thread()
    0x7f98fa6a7700 iax2_process_thread started at [12288] chan_iax2.c start_network_thread()
    0x7f98fa723700 iax2_process_thread started at [12288] chan_iax2.c start_network_thread()
    0x7f98fa79f700 iax2_process_thread started at [12288] chan_iax2.c start_network_thread()
    0x7f98fa81b700 iax2_process_thread started at [12288] chan_iax2.c start_network_thread()
    0x7f98fa897700 iax2_process_thread started at [12288] chan_iax2.c start_network_thread()
    0x7f98fa913700 iax2_process_thread started at [12288] chan_iax2.c start_network_thread()
    0x7f98fa98f700 sched_run started at [ 186] sched.c ast_sched_thread_create()
    0x7f98faa0b700 tps_processing_function started at [ 468]
    taskprocessor.c ast_taskprocessor_get()
    0x7f98faa87700 do_monitor started at [ 3897] chan_mgcp.c restart_monitor()
    0x7f98fab03700 do_monitor started at [ 6647] chan_skinny.c restart_monitor()
    0x7f98fab7f700 accept_thread started at [ 7358] chan_skinny.c config_load()
    0x7f98fabfb700 do_monitor started at [12011] chan_dahdi.c restart_monitor()
    0x7f98fac77700 do_monitor started at [26669] chan_sip.c restart_monitor()
    0x7f992c09a700 do_timing started at [ 490]
    res_timing_pthread.c init_timing_thread()
    0x7f992e55f700 do_refresh started at [ 1766] res_calendar.c load_module()
    0x7f992f84b700 sched_run started at [ 186] sched.c ast_sched_thread_create()
    0x7f992f8c7700 tps_processing_function started at [ 468]
    taskprocessor.c ast_taskprocessor_get()
    0x7f992f943700 db_sync_thread started at [ 883] db.c astdb_init()
    0x7f993c082700 do_parking_thread started at [ 8304] features.c ast_features_init()
    0x7f993c0fe700 tps_processing_function started at [ 468]
    taskprocessor.c ast_taskprocessor_get()
    0x7f993c17a700 do_devstate_changes started at [ 750] devicestate.c ast_device_state_engine_init()
    0x7f993f17b700 logger_thread started at [ 1143] logger.c init_logger()
    0x7f993f1f7700 listener started at [ 1483] asterisk.c ast_makesocket()
    0x7f993f273700 tps_processing_function started at [ 468]
    taskprocessor.c ast_taskprocessor_get()
    55 threads listed.

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  • Server specs :

    XEON E3-1220V2
    4 GB RAM
    2 x 500GB HD (RAID0)
    1 U
    HOT-PLUG PSU

    Linux sip.server.tld 2.6.32-358.18.1.el6.x86_64 #1 SMP Wed Aug 28
    17:19:38 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

    There is no transcoding. Calls are using G711a.

    Maybe there is some trancoding when using voicemail…

    How can I find out if there is trancoding ??

    Kind regards, Jonas.

  • First thing, prune your Asterisk configuration and don’t load any modules you don’t need to use. Are you really using chan_mgcp, chan_skinny, res_calender, etc.