Identify performance limitations in JavaScript

Question

I'm trying to find the bottleneck in my Javascript. Basically I'm developing a chrome extension written in Javascript that takes 4-5 seconds to perform a task. This task involves a lot of code and using the print statements built into dev tools/chrome doesn't work. The dev tools don't even seem to see that my Javascript is running. I'm wondering if anyone has any suggestions/tools they've found helpful?

Answer 1

Open your page in Chrome.

Tools -> Developer Tools -> Configuration File

Start analysis (third button, gray circle on bottom status bar)