`Node.js` and/or other Javascript offshoots' performance, stability and speed relative to non-JS frameworks (Rails, Django...)

I find myself often needing performance & speed references for friends who still don't believe a Node.js or other Javascript-derived implementation or application can compete with those powered by Rails, Pure Ruby, .NET, Python and similar setups.

I have seen very impressive reports on this, with graphs and eyecandy, but when I need them, I can never find them. So maybe we can use this question to build a list of viable resourc开发者_开发问答es for "selling" a tech person/manager on Node.js as a viable solution. Or add citable facts to the thread

Thanks in advance.

• v8 faster then php/python, 3x slower then C++
• node.js vs tornade
• Express vs Sinatra
• Node.js vs apache/PHP
• Node.js vs nginx
• Node.js in language benchmark game

Feel free to expand

Node.js is beating other platforms, sure. But it's not it's raw speed (V8), it's the sophisticated event-driven model which powers the node.js platform ;)

These are the best articles I've come across comparing nodejs performance to python:

Python v/s node v/s pypy

STAND BACK... I'M GOING TO TRY SCIENCE!