What do the “Not optimized” warnings in the Chrome Profiler mean?

Question

When I use the Developer Tools in Chrome to collect JavaScript CPU Profiles, I am getting two mysterious warnings on functions:

• Not optimized: optimized too many t

Answer 1

I was getting a lot of the 'Not optimized: optimized too many times' warnings and these functions were running much slower than they should have.

I was able to fix these functions by doing these things:

1. Removing unused variable declarations

2. Removing function calls from loops that iterate many times (>1000 i suspect)