Re: Knowing where a function has been used (bis) [Was: Re: Optimising Elisp code]

[Barry Margolin]

In article <86d0sknoud.fsf@zoho.com>, Emanuel Berg <moasen@zoho.com> 
wrote:

> > And as another answer said, you should only
> > bother with functions that are called
> > very frequently.
> 
> How do I know that? Is there a tool to make
> a ranking which functions were used the most
> during a session?

Emacs Lisp has a profiler. Read the section on it in the Elisp manual.

In general you shouldn't even be worrying about this unless your code is 
running too slow to begin with. Then you use the profiler to find the 
bottlenecks and try to improve them. Inline coding is likely to be the 
LEAST effective way to improve performance, except for the simplest 
functions.

-- 
Barry Margolin, barmar@alum.mit.edu
Arlington, MA
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