Chapter 16. Speed
Easy optimisations: Low hanging
C is well know as the fastest high-level language available
16.1. About Optimising
There are two times you will optimise your code: while
you're writing it and after it's performance disappoints you.
As a rule, it is said that ninety percent of your an
applications running time is taken up by ten percent of it's code.
There is little point in optimising a function that is rarely