For an example of multiplier loops inside the subroutines, have a look at Re: Bug or WAD in lvalue substr? (again.).

If you call a sub in a loop, you are timing how long it takes to call the sub as well as the time it takes to execute the contents of the sub. Often this is not an issue since the contents of the sub take a lot longer than just calling the sub itself. If the loop is inside the sub instead, then you can focus more on the contents of the loop rather than the time it takes to call subs, which is important when you're timing something that's as fast as sub calls.

For more on benchmarking in general, have a look at the "Benchmarking Perl" chapter in Mastering Perl.

In reply to Re^4: Ways to delete start of string by kyle
in thread Ways to delete start of string by hsmyers

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