NIST-SIP 55 CAPS on my laptop and counting!

Hello!

 I got rid of all my synchornized data structures and replaced them all 
with equivalent concurrent library synchronized hashmaps and such. I ran 
the following experiment:

UAC to UAS call setup and teardown with the UAS tears down the call. I 
set the thread pool size to unconstrained (hmm.. negates previous 
hypothesis). I ran 1000 concurrent Dialogs and averaged call 
setup/teardown per call over 1000 calls. My measured thruput on my 
single processor laptop is 55 Calls / Second ( I measure the average 
time between INVITE and BYE ). I ran this in self test mode. The test is 
in src/test/load/concurrency/

Can somebody repeat the test and report results and also examine the 
test code (it is quite small).

Would anybody like to run this using SIPP on their multiprocessor 
machine and do a scalability analysis ( i.e. scalability with respect to 
number of processors / rate of INVITEs etc. ). I will try to devise a 
mechansm to deal with flooding attacks (yetanudder stack configuration 
parameter ugh! ). 

The harder we work at it the faster it goes.

Regards,

Ranga

-- 
M. Ranganathan 

Advanced Networking Technologies Division,
National Institute of Standards and Technology (NIST),
100 Bureau Drive, Stop 8920, Gaithersburg, MD 20899. 
tel:301 975 3664 , fax:301 590 0932 http://w3.antd.nist.gov/
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