Hi Lucas Rey,

I believe one of the major differences is that select lets you specify subsecond precision for the sleep duration.

My gut tells me I wouldn't expect a noticable difference between the two in terms of performance. But I'm confused why performance would matter for a function that effectively causes the script to hang?

If you want higher precision, have a look at Time::HiRes.

Regards,
-- Hauke D

Updated: Made wording a little more specific.