Hi Rui, This depends a lot in your hardware. As long as all threads share a single cache realm, thing should scale almost perfectly
Even if not, they should if processing was really kept local, but i believe a lot of inter process reading is involved and if so, performance worsen when you have to cross cache realms --- Sent using Real Mail -----Mensaje original----- De: "Rui" <[email protected]> Fecha: Sat Mar 19 13:55:11 GMT 2011 Para: "[email protected]" <[email protected]> CC: Asunto: Re: [Ntop-misc] ring cluster help performance or not? more thread or app would bring the lock overhead? in some test cases,I feel that 4 pfcount instances has better performance than 8. On Thu, Mar 17, 2011 at 4:25 PM, Luca Deri <[email protected]> wrote: > Rui > it will not increase the numer of packets captured per PF_RING socket, but it > will allow you to create multiple threads/apps that will poll packet > concurrently and thus increase the overall performance. Please refer to this: > http://www.ntop.org/blog/?p=156 > > Luca > > On Mar 17, 2011, at 3:58 AM, Rui wrote: > >> hi >> >> setting the ring cluster would help the capture performance or not? >> any idea? >> >> thanks >> rui >> _______________________________________________ >> Ntop-misc mailing list >> [email protected] >> http://listgateway.unipi.it/mailman/listinfo/ntop-misc > > --- > Keep looking, don't settle - Steve Jobs > > _______________________________________________ > Ntop-misc mailing list > [email protected] > http://listgateway.unipi.it/mailman/listinfo/ntop-misc > _______________________________________________ Ntop-misc mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop-misc
_______________________________________________ Ntop-misc mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop-misc
