NodeJS & WebSocket load issues?

Question

JavaScript

I am writing a chat using NodeJS + WebSocket as a VK in terms of functionality. For WebSocket I use the ws module. The functionality is: typing a message, a message has been read, a new message. It's all going through JS. With 3-4 online, everything works great. As soon as it becomes more online, NodeJS + WebSocket starts to blunt. Who knows how to deal with loads and do the right optimization?

Answer 1

profile and look for what tupit. One Allah knows that you planed in the code there. JS is not multi-threaded, so you could very well block the thread of execution somewhere in debt or often.

Answer 2

Of course, I'm not dohtor, but you can forget about asynchrony?