Performance Inspector

[kaneryu]

Looking at the FPS Graph gave me this idea:

Why not also list the most performance impacting stacks? Whether the metric is time it takes to run a stack of blocks or something else, that would be really useful for performance debugging purposes.

[GarboMuffin]

as a short term thing -- if you open up your browser's developer tools and activate the performance profiler in there, because we compile things down to plain JS with reasonably readable function names, you can get a good idea from that