Improve performance of -profile by factor of 10

[Jonathan M Davis]

On Tuesday, March 26, 2013 17:17:51 Walter Bright wrote:
> I've done a lot of very successful optimization jobs using -profile. Sure,
> it isn't terribly accurate, but it's plenty accurate enough where it
> matters.

I'd say that for the most part, our approach to stuff like -profile or unit 
testing is to provide a simple-to-use feature that solves the problem 90% of 
the time while leaving more powerful (and therefore more complicated) stuff to 
3rd party solutions. That way, we have a tool that everyone can use effectively 
even if it doesn't have all of the bells and whistles, and those that really 
care about the bells and whistles can do what they normally would have done 
anyway if we didn't provide a solution (i.e. use or write a 3rd party 
solution).

- Jonathan M Davis