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By Paul Johnson (‎pjcj‎) from Zürich.pm
Lightning talk
Target audience: Any
Language:
Tags: lightning

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This lightning talk will be a half serious rant about not being overly concerned with how fast various Perl constructs are.

It seems like every other message (exaggeration) on the beginners@perl.org mailing list is concerned about the speed of some perl construct or other. Which is quicker, a for loop or a map? Is it faster to call my subroutines as &subname()? You can do that faster with tr//! And whilst this seems to be particularly prevalent amongst beginners, developers at all levels can get caught up in this sort of nonsense.

I want to emphasise that these concerns are, at the very best, extremely premature. I might touch on IO costs, memory usage, big oh notation and XS.

I don't want to impart any great wisdom, I simply want to note that in almost all cases It Doesn't Matter!

Attended by:

• Trond Michelsen (‎trondmm‎)
• rosario colletti (‎rosariocolletti‎)