RE: More performance tweaking and cleanup.
"Francisco Javier Tellez Vaquero" <[email protected]>
| Newsgroups | gmane.comp.voip.nist-sip |
|---|---|
| Message-ID | <[email protected]> |
Hi all, first thank you very much to Ranga for the improvements about performance issue. About rate limiting, is it a new configuration parameter or the stack manages it internally?? Regards, Fran. >From: "Francisco Javier Tellez Vaquero" <[email protected]> >To: [email protected], [email protected] >Subject: RE: [nist-sip] More performance tweaking and cleanup. >Date: Thu, 01 Jun 2006 19:42:21 +0200 > >Hello, >we have repeated the tests in our machine (4 CPU's Sun UltraSparc+ >dual-core at 1,5Ghz = 8CPUs) with this scenario: > >SIPP -------------------------> STACK > > INVITE -----------> > 180 <--------------- > 200 <--------------- > ACK --------------> > BYE --------------> > 200 <-------------- > >and these are the results: > >---> 10000 calls with 66cps --> each CPU takes 14% >---> 10000 calls with 150cps --> each CPU takes 55% >---> 10000 calls with 200cps -->each CPU takes 75% (finally performance >decrease) > >Best Regards, >Fran. > >>From: "M. Rangnathan" <[email protected]> >>To: sip mailing <[email protected]> >>Subject: [nist-sip] More performance tweaking and cleanup. >>Date: Wed, 31 May 2006 14:38:57 -0400 >> >>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! >> >> >>_______________________________________________ >>nist-sip mailing list >>[email protected] >>http://www-x.antd.nist.gov/mailman/listinfo/nist-sip > > > >_______________________________________________ >nist-sip mailing list >[email protected] >http://www-x.antd.nist.gov/mailman/listinfo/nist-sip