Personally, I've had some issues with fastcgi (for PHP) when you get a lot of simultaneous requests. It would hang, and eventually lock up with no exit except a

Personally, I've had some issues with fastcgi (for PHP) when you get a lot of simultaneous requests. It would hang, and eventually lock up with no exit except a killing of processes. Not sure if it's just my setup, or the software, or what have you but that's my experience so far. Needing to make some time to try PHP-FPM and see how that works out.