Web page with high CPU usage -- how to profile

Question

I have a webpage to optimize. When I enter it, the CPU usage increases drastically. I tried to use Chrome Dev Tools, but profiler 92% of the time is in the (program) line. What could I do to find the culprit of this behavior?

Answer 1

I've had the same issues before. I don't have a lot of experience using Chrome Dev Tools but here are some useful links:

• Debugging JavaScript - Chrome DevTools - Google Developers
• JavaScript Profiling With The Chrome Developer Tools | Smashing Coding
• Chrome DevTools - Google Developers