why the perl complied code takes more memory?

why the perl complied code takes more memory?

References

Reference NO 1

http://stackoverflow.com/questions/15165604/why-the-perl-complied-code-takes-more-memory

Reference NO 2

http://www.perlmonks.org/?node_id=1021384

Reference NO 3

http://oreilly.com/catalog/pperl3/chapter/ch18.html

Reference NO 4

http://learn.perl.org/faq/perlfaq3.html

Reference NO 5

http://www.fnal.gov/docs/products/perl/pod.new/5.00503/pod/perldebug.html

Reference NO 6

http://www.ccl4.org/~nick/P/Fast_Enough/

Reference NO 7

http://mojolicio.us/perldoc/perldebguts

Reference NO 8

http://perl.active-venture.com/pod/perldebguts-perlmemory.html