[asterisk-dev] IAX2 performance (was: Asterisk 1.4.20-rc1 Now Available)

Russell Bryant russell at digium.com
Mon May 5 15:21:39 CDT 2008

Tim Panton wrote:
> Yep, it is a hack, but it might be worth considering instead of the  
> effort of trying to backport
> the ast2obj fix, which is (of course) a much better fix.

By the way, while we're on the subject of these changes, I figured I would share
the performance difference that I measured in brief testing.

Testing between the code that included the security fix, and code that included
my performance enhancements yielded an increase in concurrent IAX2 channels of
about 3600%.  :)

However, in a more meaningful test, I went back to the code right before the
security fix.  Testing between that and the code with my performance
enhancements yielded an increase of about 55% in concurrent IAX2 channels.

I wonder what IAX2 vs. SIP performance looks like now ...

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

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