With the load-module probe, you can see at what point modules are loaded using ‘do', ‘use' or ‘require'.

The following code:

$1

produces the following output:

$1

see my perl5.8 trac for the code -or grab the modified 5.8.8 source from svn

the  perl*::Perl_utilize:load-module-end probe is currently being worked on, and I really would like to see the actual parse component of the load separated out.