How do I free up memory (e.g. objects) I no longer need? 

@array = ();  # empty the array
%hash = ();   # empty the hash
$var = undef; # empty the variable

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You'll also see people using undef to undefine things. Consult perlfunc for details on undef.

In reply to Re: Improving memory performance by dws
in thread Improving memory performance by ezekiel

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