Does it have to be the same process? You could replace 
do_work($qfn)

[download]
with something like 
if (my $pid = fork()) {
   waitpid($pid, 0);
} else {
   do_work($qfn);
}

[download]

In reply to Re: Perl and memory usage. Can it be released? by ikegami
in thread Perl and memory usage. Can it be released? by sherab

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