More performance tweaking and cleanup.

"M. Rangnathan" <[email protected]>
Newsgroups gmane.comp.voip.nist-sip
Message-ID <[email protected]>
Hello!

I've added some rudimentary rate limiting (someting like a very 
rudimentary RED) to make the stack resillient to flooding attacks. Much 
more can be done here in terms of identifying attack sources, fairness 
etc. I took a gross approach.

 I also eliminated some linear searches and got rid of another 
synchronized linked list and elimiated more syncrhonization . I  am up 
to about 69 CAPS on my machine. It runs consitently with no leaks over 
10,000 callsetup/teardown.  The CPU is running at a fairly decent 70 % 
(combined) and the image is around 110 mb for Shootist.  Somebody may 
want to do a "sacalabiltiy with mutiprocessor" experiemnt.


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/ 
Advanced Networking Technologies For the People!
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