I don’t think that I could emphasize anything unusual on Asterisk itself.
Production application is passing calls to it, using different modules, no Asterisk’s sorcery cache is configured.
Click here to see modules
I stripped modules description in order to comply with 32000 char limit.
<my_machine>*CLI> module show
Module Use Count Status Support Level
acl 2 Running core
app_adsiprog.so 0 Running deprecated
app_alarmreceiver.so 0 Not Running extended
app_amd.so 0 Not Running extended
app_attended_transfer.so 0 Running extended
app_authenticate.so 0 Running core
app_blind_transfer.so 0 Running extended
app_bridgeaddchan.so 0 Running core
app_bridgewait.so 0 Running core
app_cdr.so 0 Running core
app_chanisavail.so 0 Running extended
app_channelredirect.so 0 Running core
app_chanspy.so 1 Running core
app_controlplayback.so 0 Running core
app_db.so 0 Running core
app_dial.so 0 Running core
app_dictate.so 0 Running extended
app_directed_pickup.so 0 Running core
app_disa.so 0 Running core
app_dtmfstore.so 0 Running extended
app_dumpchan.so 0 Running core
app_echo.so 0 Running core
app_exec.so 0 Running core
app_externalivr.so 0 Running extended
app_forkcdr.so 0 Running core
app_getcpeid.so 0 Running deprecated
app_image.so 0 Running deprecated
app_macro.so 0 Running deprecated
app_mf.so 0 Running extended
app_milliwatt.so 0 Running core
app_mixmonitor.so 0 Running core
app_morsecode.so 0 Running extended
app_nbscat.so 0 Running deprecated
app_originate.so 0 Running core
app_playback.so 0 Running core
app_playtones.so 0 Running core
app_privacy.so 0 Running core
app_read.so 0 Running core
app_readexten.so 0 Running core
app_record.so 0 Running core
app_reload.so 0 Running extended
app_saycounted.so 0 Running extended
app_sayunixtime.so 0 Running core
app_senddtmf.so 0 Running core
app_sendtext.so 0 Running core
app_sf.so 0 Running extended
app_sms.so 0 Running extended
app_softhangup.so 0 Running core
app_speech_utils.so 0 Running core
app_stack.so 0 Running core
app_stasis.so 12 Running core
app_statsd.so 0 Running extended
app_stream_echo.so 0 Running core
app_system.so 0 Running core
app_talkdetect.so 0 Running core
app_test.so 0 Running extended
app_transfer.so 0 Running core
app_url.so 0 Running deprecated
app_userevent.so 0 Running core
app_verbose.so 0 Running core
app_waitforcond.so 0 Running extended
app_waitforring.so 0 Running extended
app_waitforsilence.so 0 Running extended
app_waituntil.so 0 Running core
app_while.so 0 Running core
app_zapateller.so 0 Running extended
bridge_builtin_features.so 1 Running core
bridge_builtin_interval_feature 0 Running core
bridge_holding.so 2 Running core
bridge_native_rtp.so 0 Running core
bridge_simple.so 11 Running core
bridge_softmix.so 3 Running core
ccss 3 Running core
cdr 8 Running core
cdr_adaptive_odbc.so 0 Running core
cdr_csv.so 0 Not Running extended
cdr_custom.so 0 Running core
cdr_manager.so 0 Not Running core
cdr_odbc.so 0 Not Running extended
cel 1 Running core
chan_bridge_media.so 0 Running core
chan_pjsip.so 65 Running core
chan_rtp.so 0 Running core
codec_a_mu.so 0 Running core
codec_adpcm.so 0 Running core
codec_alaw.so 0 Running core
codec_codec2.so 0 Running core
codec_g722.so 0 Running core
codec_g726.so 0 Running core
codec_gsm.so 0 Running core
codec_ilbc.so 0 Running core
codec_lpc10.so 0 Running core
codec_opus.so 0 Running extended
codec_resample.so 0 Running core
codec_silk.so 0 Running extended
codec_siren14.so 0 Running extended
codec_siren7.so 0 Running extended
codec_speex.so 0 Running core
codec_ulaw.so 17 Running core
dnsmgr 2 Running core
dsp 1 Running core
enum 2 Running core
extconfig 14 Running core
features 1 Running core
format_g719.so 0 Running core
format_g723.so 0 Running core
format_g726.so 0 Running core
format_g729.so 0 Running core
format_gsm.so 0 Running core
format_h263.so 0 Running core
format_h264.so 0 Running core
format_ilbc.so 0 Running core
format_ogg_opus.so 0 Running core
format_ogg_speex.so 0 Running extended
format_ogg_vorbis.so 0 Running core
format_pcm.so 3 Running core
format_siren14.so 0 Running core
format_siren7.so 0 Running core
format_sln.so 0 Running core
format_vox.so 0 Running extended
format_wav.so 0 Running core
format_wav_gsm.so 0 Running core
func_aes.so 0 Running core
func_base64.so 0 Running core
func_blacklist.so 0 Running core
func_callcompletion.so 0 Running core
func_callerid.so 0 Running core
func_cdr.so 1 Running core
func_channel.so 0 Running core
func_config.so 0 Running core
func_cut.so 1 Running core
func_db.so 0 Running core
func_devstate.so 0 Running core
func_dialgroup.so 0 Running core
func_dialplan.so 0 Running core
func_enum.so 0 Running core
func_env.so 0 Running core
func_extstate.so 0 Running core
func_frame_drop.so 0 Running extended
func_frame_trace.so 0 Running extended
func_global.so 0 Running core
func_groupcount.so 1 Running core
func_hangupcause.so 0 Running core
func_holdintercept.so 0 Running core
func_iconv.so 0 Running core
func_jitterbuffer.so 0 Running core
func_json.so 0 Running extended
func_lock.so 0 Running core
func_logic.so 0 Running core
func_math.so 0 Running core
func_md5.so 0 Running core
func_module.so 0 Running core
func_odbc.so 0 Not Running core
func_periodic_hook.so 2 Running core
func_pitchshift.so 0 Running extended
func_pjsip_aor.so 0 Running core
func_pjsip_contact.so 0 Running core
func_pjsip_endpoint.so 0 Running core
func_presencestate.so 0 Running core
func_rand.so 0 Running core
func_realtime.so 0 Running core
func_sayfiles.so 0 Running core
func_scramble.so 0 Running core
func_sha1.so 0 Running core
func_shell.so 0 Running core
func_sorcery.so 0 Running core
func_speex.so 0 Running core
func_sprintf.so 0 Running core
func_srv.so 0 Running core
func_strings.so 0 Running core
func_sysinfo.so 0 Running core
func_talkdetect.so 0 Running core
func_timeout.so 0 Running core
func_uri.so 1 Running core
func_version.so 0 Running core
func_volume.so 0 Running core
http 5 Running core
indications 1 Running core
logger 1 Running core
manager 1 Running core
pbx_config.so 0 Running core
pbx_dundi.so 0 Not Running extended
pbx_loopback.so 0 Running core
pbx_realtime.so 0 Running extended
pbx_spool.so 0 Running core
plc 1 Running core
res_adsi.so 2 Running deprecated
res_agi.so 1 Running core
res_ari.so 10 Running core
res_ari_applications.so 0 Running core
res_ari_asterisk.so 0 Running core
res_ari_bridges.so 0 Running core
res_ari_channels.so 9 Running core
res_ari_device_states.so 0 Running core
res_ari_endpoints.so 0 Running core
res_ari_events.so 1 Running core
res_ari_model.so 10 Running core
res_ari_playbacks.so 0 Running core
res_ari_recordings.so 0 Running core
res_ari_sounds.so 0 Running core
res_chan_stats.so 0 Running extended
res_clialiases.so 0 Running core
res_clioriginate.so 0 Running core
res_config_odbc.so 0 Running core
res_convert.so 0 Running core
res_crypto.so 2 Running core
res_format_attr_g729.so 1 Running core
res_format_attr_h263.so 1 Running core
res_format_attr_h264.so 1 Running core
res_format_attr_ilbc.so 1 Running core
res_format_attr_opus.so 1 Running core
res_format_attr_silk.so 1 Running core
res_format_attr_siren14.so 1 Running core
res_format_attr_siren7.so 1 Running core
res_format_attr_vp8.so 1 Running core
res_hep.so 2 Running extended
res_hep_pjsip.so 0 Running extended
res_hep_rtcp.so 0 Running extended
res_http_media_cache.so 0 Not Running core
res_http_post.so 0 Running core
res_http_websocket.so 4 Running core
res_limit.so 0 Running core
res_manager_devicestate.so 0 Running core
res_manager_presencestate.so 0 Running core
res_monitor.so 1 Running deprecated
res_musiconhold.so 3 Running core
res_mutestream.so 0 Running core
res_mwi_devstate.so 0 Running core
res_odbc.so 5 Running core
res_odbc_transaction.so 1 Running core
res_pjproject.so 4 Running core
res_pjsip.so 58 Running core
res_pjsip_acl.so 0 Running core
res_pjsip_authenticator_digest. 0 Running core
res_pjsip_caller_id.so 14 Running core
res_pjsip_config_wizard.so 1 Running core
res_pjsip_dialog_info_body_gene Running core
res_pjsip_diversion.so 14 Running core
res_pjsip_dlg_options.so 13 Running core
res_pjsip_dtmf_info.so 13 Running core
res_pjsip_empty_info.so 13 Running core
res_pjsip_endpoint_identifier_a 0 Running core
res_pjsip_endpoint_identifier_i 0 Running core
res_pjsip_endpoint_identifier_u 0 Running core
res_pjsip_exten_state.so 0 Running core
res_pjsip_header_funcs.so 13 Running core
res_pjsip_history.so 0 Running extended
res_pjsip_logger.so 0 Running core
res_pjsip_messaging.so 13 Running core
res_pjsip_mwi.so 0 Running core
res_pjsip_mwi_body_generator.so 0 Running core
res_pjsip_nat.so 13 Running core
res_pjsip_one_touch_record_info 13 Running core
res_pjsip_outbound_authenticato 0 Running core
res_pjsip_outbound_publish.so 2 Running core
res_pjsip_outbound_registration 0 Running core
res_pjsip_path.so 13 Running core
res_pjsip_pidf_body_generator.s 0 Running core
res_pjsip_pidf_digium_body_supp 0 Running core
res_pjsip_pidf_eyebeam_body_sup 0 Running core
res_pjsip_publish_asterisk.so 0 Running core
res_pjsip_pubsub.so 12 Running core
res_pjsip_refer.so 14 Running core
res_pjsip_registrar.so 0 Running core
res_pjsip_rfc3326.so 13 Running core
res_pjsip_sdp_rtp.so 13 Running core
res_pjsip_send_to_voicemail.so 13 Running core
res_pjsip_session.so 19 Running core
res_pjsip_sips_contact.so 0 Running core
res_pjsip_stir_shaken.so 0 Not Running core
res_pjsip_t38.so 19 Running core
res_pjsip_transport_websocket.s 13 Running core
res_pjsip_xpidf_body_generator. 0 Running core
res_realtime.so 0 Running core
res_remb_modifier.so 0 Running extended
res_rtp_asterisk.so 7 Running core
res_rtp_multicast.so 1 Running core
res_security_log.so 0 Running core
res_smdi.so 0 Running extended
res_sorcery_astdb.so 2 Running core
res_sorcery_config.so 12 Running core
res_sorcery_memory.so 7 Running core
res_sorcery_memory_cache.so 0 Running core
res_sorcery_realtime.so 7 Running core
res_speech.so 2 Running core
res_srtp.so 8 Running core
res_stasis.so 35 Running core
res_stasis_answer.so 1 Running core
res_stasis_device_state.so 1 Running core
res_stasis_playback.so 3 Running core
res_stasis_recording.so 4 Running core
res_stasis_snoop.so 1 Running core
res_statsd.so 4 Running extended
res_stir_shaken.so 0 Not Running core
res_timing_pthread.so 0 Running extended
res_timing_timerfd.so 33 Running core
res_tonedetect.so 0 Running extended
sounds 1 Running core
udptl 2 Running core
299 modules loaded
I don’t understand the reference to “dropping cache”.
I meant this sync; echo 3 > /proc/sys/vm/drop_caches.
although I have no idea of the provenance of the graphs.
These are from 2 production Asterisk machines that should help to see that memory spikes are not consistent over time, which, I think, might be tied to the number of proccessed calls, but something is not being cleaned up after call ends, and that’s why memory keeps growing, but barely being freed.
I thought 16.x is not that old after all, as you pointed out, it reached security maintenance only about month ago.