问题:

I've searched a lot about stress testing a NodeJs application/module but I didn't find anything.

I have a push server application (something like socket.io) and I want to test it to ensuring there's no memory leaks and that it exhibits optimal performance.

What's the best method or tools for doing that?

回答1:

You do not need any special tool for load testing Node.js application. You can use any load test tools:

ApacheBench
Siege
Jmeter
Tsung

From opensource and free tools I can recommend JMeter. As it has built-in Proxy Server which can record HTTP traffic. Advantage of JMeter than other tools is user friendly GUI. You can find article related Node.js load balancing and JMeter testing.

回答2:

Try this phanos stress test tool. This is phantomjs based tool, and you can loading ajax request too with it. But this tool doesn't provide stat info, you should use nodetime (or something else) for analyze the traffic performance.