Help regarding optimizing socket performance.

[anoopchalil]

I have an application which server around 8000 clients. Each client spawns a new thread. Each thread has a socket on which it sends data. A main thread has a socket on which it received data and puts it on the concerned clients queue. The packets received per sec is approx 10Mbps. While doing so, I observe that when my client base increases beyond 1000, i.e. 1000 threads, the software interrupt hits 25% and the system slows down a lot which I believe would be something to do with the system calls made to send/receive each packet. I am not sure abt the reason.
Host machine - Ubuntu 11.04 (64 bit).
I am not sure if I am giving all the details needed but in case anyone has any idea about optimizing the performance or a way to find what is causing this high software interrupt?

[vasile002]

I don't believe it has anything with socket performance but rather the application you are running. Since we have no details about it we can't help