Just for the record:
Today I repeated my benchmark, adding another competitor,
a "real" PerlHandler script. (I simply took the 'clean'
Apache::Registry script and wrapped it inside a proper
Apache handler() sub.) These are the results:
||Requests per second
|Perl script under Apache::Registry
So if you want real performance and you ask me, the answer is
clear: take mod_perl and use what it already has (and it
really has a lot).