Re^2: quick question on modules


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Re^2: quick question on modules

by Corion (Patriarch)

on Feb 01, 2013 at 09:47 UTC ( [id://1016490]=note: print w/replies, xml )

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in reply to Re: quick question on modules
in thread quick question on modules

A great counterexample is POSIX:

Q:\>perl -MPOSIX -wle "print for grep {$_ =~ /$$/} `tasklist`"
perl.exe                    5508 Console                 0      3.936 
+K


Q:\>perl -MPOSIX=strftime -wle "print for grep {$_ =~ /$$/} `tasklist`
+"
perl.exe                    4904 Console                 0      3.672 
+K
[download]

POSIX.pm exports all its functions and constants by default, which costs 300K memory, while importing just the few needed functions reduces the amount of memory spent.

tl; dr - just like you said, no general answer here.