Indeed. For tracking absolute sizes, that can be a problem.
But for the purposes of tracing leaks, whether they are optimistic or pessimistic for any particular construct, so long as the measurements are consistent, then the purpose is well served.
With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
In reply to Re^7: How can I free the memory of a XML::Simple-Object