You are using buffered stdio. Only when the buffer has a newline will it print to console. Turn on autoflush http://perldoc.perl.org/perlvar.html#$| every print should cause a console print, but this also causes higher cpu and is less efficient.

edit for mistake pointed out by another monk

In reply to Re: Problem with sleep command in perl by bulk88
in thread Problem with sleep command in perl by Anonymous Monk

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