> I'm sure that an Asterisk developer can chime in and give several examples > of how Asterisk uses its threads to increase scalability. That said, there > will be a point where the number of core/CPU's won't be the bottleneck so > adding more won't help anything. >
Asterisk is highly multi-threaded and definitely takes advantage of multiple cores. There are a few places where concurrency could be further improved, but its really quite good in 1.4. (IAX in 1.4 does handle traffic using a thread pool so will take advantage of multiple cores). By the way, I have a client with a four-core Xeon box doing SIP to IAX conversion - that box can handle 1000 concurrent calls. Steve
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