Maybe the GTop module does what you want. I've never used it, but it looks like it might be helpful.

Try someting like this: 
use Data::Dumper;
use GTop;

my $gtop = GTop->new;

my @array;
 
make_accessor1('code1', 0);
make_accessor2('code2', 0);


##Lexical
my $data = $gtop->proc_mem($$)->rss;
report('Before Lexical', $data);

&code1(5);

$data = $gtop->proc_mem($$)->rss;
report('After Lexical', $data);


##Non-Lexical
$data = $gtop->proc_mem($$)->rss;
report('Before Non-Lexical', $data);

&code2(5);

$data = $gtop->proc_mem($$)->rss;
report('After Non-Lexical', $data);


##########
# SUBS
##########
sub make_accessor1
{
   my ($name, $index) = @_;
 
   *{$name} = sub { $array[$index] = $_[0] };
}
 
sub make_accessor2
{
   my $index = $_[1];
 
   *{$_[0]} = sub { $array[$index] = $_[0] };
}


##REPORTER
sub report{
    my $title = $_[0];
    my $data  = $_[1];

    print "$title\n--------------------\n";
    print Dumper $data;
    print "--------------------\n\n";
}

[download]


Update: Added sample code

In reply to Re: Closures and lexical scope by tcf22
in thread Closures and lexical scope by dragonchild

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.