If anything you'll see the difference magnified in a complex application, but it's unlikely to turn around.
I wouldn't say so. The bottleneck in a hello world benchmark might be a component of the framework, but in complex applications it's likely to be something else. Just look at the "Template Test with DB Query": There, Sqlite is the bottleneck, and the performance difference between Django and Rails fades into background completely.
in complex applications it's likely to be something else
Nope. Ruby/Python app-servers always end up CPU-bound, unless you're doing something very much out of the ordinary (such as blocking on an embedded SQLite...).
I wouldn't say so. The bottleneck in a hello world benchmark might be a component of the framework, but in complex applications it's likely to be something else. Just look at the "Template Test with DB Query": There, Sqlite is the bottleneck, and the performance difference between Django and Rails fades into background completely.