I'd forgotten how sexy, useful, and great mod_perl is.
I've recently been struggling with a friend's CGI-based site, and after a minor effort we made it run with Apache::PerlRun:
Apache::PerlRun gives you the benefit of preloaded Perl and its modules. This module's handler emulates the CGI environment, allowing programmers to write scripts that run under CGI or mod_perl without any change
Because the site code wasn't very clean we had to make a lot of changes to get it working under Apache::Registry.
Apache::Registry is the Apache module allowing you to run CGI scripts very fast under mod_perl, by compiling all scripts once and then caching them in memory.
But the payoff is very noticeable - the site is now blazingly fast!
At some point I should write a guide to doing basic things with mod_perl. Mostly I guess the challenge is that you can write toy applications in moments, but to demonstrate how useful it is you need to apply it to something the reader is familiar with. Or demonstrate why the effort is worthwhile, given that it ties you to the Apache + mod_perl platform.
Any links to existing guides, or suggestions on how to approach the guide-writing in a beginner-friendly but still useful fashion are welcome.
ObFilm: Pretty In Pink