Benchmarking is always fun.
Using ab on localhost, asking for 50_000 requests of the Tux served front page: 27.924 secs. 1790.57 requests per second.
Ditto but for the mod_perl real pages (yes, it's not really fair to compare them, but I'm going to): [twiddles thumbs, waiting for it]
Tell you what, I'll post tomorrow.