high performance tcp server in Node.js?

I've seen many good tcp-based projects in other languages, for example C/C++.

Is there any good one in Node.js? I'm implementing a tcp-based real-time pub/sub system using Node.js, but have some problems when high pressure.

I don't really need those simple tcp server examples or baby-steps tutorials. I need some real projects.

Thanks!

EDIT:

I write a chat-like node.js program to exchange data from clients. It's pretty good when I test it with only few people.

However, when more people, like hundreds people, join in, it starts to loss data. Check out this: How to deal with 'read ETIMEDOUT' in Node.js?.

The answer is good but cannot help on improving the stability.

I don't really expect people who dive into my dirty codes to find my errors. That's why I want some real projects to see how they do.