[Asterisk-Users] 1.2.6 doesn't use mpg123?

[Matt Roth]

Matt wrote:

>Ok.. see it... so now my question is....  which should I use? 
>Obviously a hold system using ulaw for hold files is going to use less
>CPU, but is it more stable to have Asterisk playing the sound files? 
>Especially since it has to start a seperate stream for every on hold
>person?  Seems like in a busy call center.. it would be more efficient
>to have 1 stream going to every caller, rather then multiple streams.
>  
>
Matt,

Before switching our system from the rawplayer method to native MOH, I 
consulted Kevin Fleming.  He said the impact on the system would be "not 
much, more memory usage though." 
<http://lists.digium.com/pipermail/asterisk-users/2006-February/141180.html>

Right now we have seventy calls waiting in queues (all with native MOH) 
and 120 calls connected to agents.  The box is jumping between 50%-60% 
idle.  "ps auxm" shows 241 threads for Asterisk, but none of them take 
more than 0.8% CPU.

Personally, I wouldn't mind seeing an option that allowed native MOH to 
pull from a single thread for each class.  It would probably yield lower 
CPU utilization, but I'm not sure how difficult it would be to 
implement.  If enough people are interested in this feature, it should 
be submitted through Mantis as a feature request.

Matthew Roth
InterMedia Marketing Solutions
Software Engineer and Systems Developer