I’m one of the ones, probably the one you’re calling out, who has suggested uwsgi repeatedly. Stability is not free but it’s the only professional answer. Starman was close to useless for me in the *multiple* times I fought to use it; I prefer Perl solutions. I think I even filed a bug report on core dumps related to some bad hardcoded port stuff once and never got an answer. Never heard of, nor tried, the other options but they also appear unstable. unit from the nginx people might be worth trying, I still haven’t.

“Hello world” tests are essentially useless in real world terms, unless your app has no templates, no DB/Model layers, and no processing of any kind. Then it works, but at that point, it’s a static app and every raw webserver will beat it easily.

I am skeptical that even with mod_php, or whatever is the standard now, you are seeing better than 80x improved performance. It’s probably some sort of webserver caching since the page/request never changes. mod_perl, as suggested already, will be faster but it’s a mistake, and a dead end likely to get pulled out from under you in the future, in my view.