[asterisk-users] high cpu average load

[Kamlesh Kumar]

Date: Thu, 5 Sep 2013 12:11:36 -0700
From: asterisk.org at sedwards.com
To: asterisk-users at lists.digium.com
Subject: Re: [asterisk-users] high cpu average load

On Thu, 5 Sep 2013, Kamlesh Kumar wrote:
 
> Running one asterisk server with below details.
> Only SIP to SIP calls. No real time configuration, no recording, no voicemail, no IVR, no codec translation. Average CPU load varies between 4 to 30 for 150 to 200 concurrent calls and
> we start getting problem in call quality like delay in connectivity, voice breakage etc....
>  
> Hardware:
> 2 Physical processor Intel(R) Xeon(R) CPU            5120  @ 1.86GHz
> 8 GB RAM
> 500 GB Sata HDD
>  
> Asterisk: 1.6.2.9
> PHP 5.3.3 (cli)
> MySQL: 5.0.77 
> Linux: CnetOS 5.5 (Final)
>  
> Please suggest the solution.
 
Need a bit more detail.
 
The 5120 is kind of a wimpy processor, but what is keeping it busy?
 
What do 'top' and 'htop' show are consuming the processor?
 
What is your application?
 
What are 200 calls doing?
 
Are you calling a bunch of AGIs written in scripting languages?
 
Eliminating translation is difficult. How do you know you were successful? 
Do 'module show like codec_' and 'module show like format_' show anything 
unexpected?
 Below are the further details:top and htop shows that 'asterisk' is consuming the whole cpu power.Application: Kind of SIP trunking - call is coming from IP and using dialplan routed to other third party IPAre you calling a bunch of AGIs written in scripting languages?
only one AGI script written in PHP is called with 'h' extension once the call is hungupmodule show like codec_
vm*CLI> module show like codec_
Module                         Description                              Use Count
codec_a_mu.so                  A-law and Mulaw direct Coder/Decoder     0
codec_dahdi.so                 Generic DAHDI Transcoder Codec Translato 0
codec_alaw.so                  A-law Coder/Decoder                      0
codec_lpc10.so                 LPC10 2.4kbps Coder/Decoder              0
codec_adpcm.so                 Adaptive Differential PCM Coder/Decoder  0
codec_g722.so                  ITU G.722-64kbps G722 Transcoder         0
codec_g726.so                  ITU G.726-32kbps G726 Transcoder         0
codec_ulaw.so                  mu-Law Coder/Decoder                     0
codec_gsm.so                   GSM Coder/Decoder                        0
9 modules loadedmodule show like format_
vm*CLI> module show like format_
Module                         Description                              Use Count
format_g726.so                 Raw G.726 (16/24/32/40kbps) data         0
format_ogg_vorbis.so           OGG/Vorbis audio                         0
format_pcm.so                  Raw/Sun uLaw/ALaw 8KHz (PCM,PCMA,AU), G. 0
format_g729.so                 Raw G729 data                            0
format_wav.so                  Microsoft WAV format (8000Hz Signed Line 0
format_wav_gsm.so              Microsoft WAV format (Proprietary GSM)   0
format_g723.so                 G.723.1 Simple Timestamp File Format     0
format_gsm.so                  Raw GSM data                             0
format_vox.so                  Dialogic VOX (ADPCM) File Format         0
format_mp3.so                  MP3 format [Any rate but 8000hz mono is  0
10 modules loaded
Thank you,Kamlesh
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