Writing Solid CPAN Modules

Information on memory allocation issues in Perl
Re: Is there a penalty for namespace use?

<update>something has changed</update>
Re: undefining hashes to free memory
Memory leaks and reference counting within Perl.
Is $^M a leftover April Fool?
Re: Perl application packaging

Creating a big file:

perl -e '$string=q{ }x1024; for(my $i = 0; $i <= (1024*1024); $i++){print $string}' > test.out