[asterisk-dev] SIP channel optimization (new topic)

[Russell Bryant]

Johansson Olle E wrote:
> Based on experience of problems with several Asterisks in production,  
> I don't agree with you.
> 
> We really need to make Asterisk servers that run mainly SIP to SIP  
> calls scale
> over multiple processors. We have had several instances where Asterisk
> totally blocks one CPU while the rest is idle. We don't see this if we  
> gateway
> to zaptel or other protocols, then media becomes a major issue.

If you're primarily making SIP to SIP calls, then you should probably be using a 
real SIP proxy.  :)

> Something I need to port back from the chan_sip3 work is the  
> allocation and
> parsing of packets that is a major pain. I simplified this in chan_sip3
> so that I only allocated the packet once and limited the number of times
> I looked for various frequently used headers.

Cool, performance enhancements are always welcome ...

-- 
Russell Bryant
Senior Software Engineer
Open Source Team Lead
Digium, Inc.