[asterisk-dev] Asterisk scalability

[Benny Amorsen]

Ian FREISLICH <ianf at clue.co.za> writes:

> 80kpps is not that much.  I have machines capable of handling just
> shy of 1Mpps on 1 physical interface, the main problem is the
> physical medium.  My measured max rate on 100M ethernet is 148kpps
> using UDP with a payload of 1 byte.  You should be able to get that
> packet rate in on gigE with a real-world payload.

The challenge is that the 80kpps have to go all the way to user space
and back out to a different ethernet interface. The packets are spread
across 1600 streams, making for lousy cache behaviour when threaded,
and timing is worst-case (each stream gets a packet every 20ms).


/Benny