That's not 100% true, there are more than `hello world` benchs.
Check it out here: https://github.com/DAddYE/web-frameworks-benchmark/tree/more...
Yep, speed is 4-6x faster, but most important for me is memory usage is much much less.
On every Rails project I need to use monit/god to stop/start when for xx cycles memory is > 100mb or so. Without that a rails project can sucks 1-2gb of ram.
Isn't quite normal to my standards, in fact generally Padrino doesn't need more than 70mb. But here a lot of work must to be do.