in mod_perl
your httpd.conf should have: 
PerlInitHandler Apache::Reload
PerlSetVar ReloadModules "Foo::* Bar::Foo"

-or-

PerlInitHandler Apache::Reload
PerlSetVar ReloadTouchFile /usr/bin/perl/lib

[download]
The first will reload on change the packages it contains allowing wild cards. The second will reload a directory if it has been touched.

As non-mod_perl goes. I find it odd that you need to restart the web server to load the modules. It may tie into the mod_cgi.

As well i may be making a dangerous assumption to believe you are using apache. Can you be more detailed with your problem

In reply to Re: Module updates require webserver restart? by zer
in thread Module updates require webserver restart? by Calm

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