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Node.js is Cancer show a wrong way to use nodejs.
But the test code Fibonacci is so funny.
I implement the fibonacci function in other Dynamic Languages for comparison testing.

Languages

Dynamic

• nodejs
• nodejs + cpp module
• python
• pypy: a fast, compliant alternative implementation of the Python language (2.7.1).
• perl
• php
• ruby
• lua
• luajit: a Just-In-Time Compiler for Lua.

Static

• c
• go

If you want to help add more dynamic languagues, please leave the implement code in comments.

Results

(^_^) c > go > luajit > nodejs > pypy > lua > python > php > perl > ruby1.9.3 > ruby1.8.5 (T_T)

Language	Times	Position
c	0m1.606s	#0
go	0m1.769s	#1
node + cpp module	0m2.216s	#2
luajit	0m2.583s	#3
nodejs	0m5.124s	#4
pypy	0m7.562s	#5
lua	0m34.492s	#6
python	1m11.647s	#7
php	1m28.198s	#8
perl	2m34.658s	#9
ruby 1.9.3	4m40.790s	#10
ruby 1.8.5	4m41.942s	#11

lua use local function will get better performance.

Test Codes

nodejs

function fibonacci(n) {
  if (n < 2) {
    return 1;
  }
  return fibonacci(n - 2) + fibonacci(n - 1);
}

console.log(fibonacci(40));

run

$ time node fibonacci.js
165580141

real  0m5.153s
user  0m5.124s
sys 0m0.012s

nodejs + cpp module

cppfibonacci.cpp

#include 
#include 

using namespace v8;

int fibonacci(int n) {
  if (n < 2) {
    return 1;
  }
  return fibonacci(n - 1) + fibonacci(n - 2);
}

Handle Fibonacci(const Arguments& args) {
    HandleScope scope;

    if (args.Length() < 1) {
        return ThrowException(Exception::TypeError(
            String::New("First argument must be a number")));
    }
    Local integer = args[0]->ToInteger();
    int r = fibonacci(integer->Value());

    return scope.Close(Integer::New(r));
}

void RegisterModule(v8::Handle target) {
    // Add properties to target
    NODE_SET_METHOD(target, "fibonacci", Fibonacci);
}

// Register the module with node.
NODE_MODULE(cppfibonacci, RegisterModule);

wscript

#!/usr/bin/env python

def set_options(ctx):
  ctx.tool_options('compiler_cxx')

def configure(ctx):
  ctx.check_tool('compiler_cxx')
  ctx.check_tool('node_addon')

def build(ctx):
  t = ctx.new_task_gen('cxx', 'shlib', 'node_addon')

  t.source = ['cppfibonacci.cpp']

  # Must be same as first parameter in NODE_MODULE.
  t.target = 'cppfibonacci'

cppfibonacci.js

var fibonacci = require('./build/default/cppfibonacci').fibonacci;
console.log(fibonacci(40));

run

$ node-waf configure
$ node-waf build
$ time node cppfibonacci.js
165580141

real  0m2.224s
user  0m2.216s
sys 0m0.008s

python2.4.3 && python2.6.7 && pypy1.7

def fibonacci(n):
    if n < 2:
        return 1
    return fibonacci(n - 2) + fibonacci(n - 1)

print fibonacci(40)

run

$ time python2.4.3 fibonacci.py
165580141

real  1m11.667s
user  1m11.647s
sys 0m0.002s

$ time python2.6.7 fibonacci.py
165580141

real  1m9.837s
user  1m9.792s
sys 0m0.006s

$ time ./pypy-1.7/bin/pypy fibonacci.py
165580141

real  0m7.608s
user  0m7.562s
sys 0m0.031s

perl

sub fibonacci {
    my $n = shift;
    if ($n < 2) {
      return 1;
    }
    return fibonacci($n - 2) + fibonacci($n - 1);
}

print fibonacci(40), "\n";

run

$ time perl fibonacci.pl
165580141

real  2m34.777s
user  2m34.658s
sys 0m0.004s

php

run

$ time php fibonacci.php

165580141
real  1m28.364s
user  1m28.198s
sys 0m0.039s

ruby1.8.5 && ruby1.9.3

def fibonacci(n)
  if n < 2
    return 1
  end
  return fibonacci(n - 2) + fibonacci(n - 1)
end

puts fibonacci(40)

run

$ time ruby1.8.5 fibonacci.rb
165580141

real  5m43.132s
user  4m41.942s
sys 1m0.653s

$ time ruby1.9.3 fibonacci.rb
165580141

real  5m41.714s
user  4m40.790s
sys 1m0.661s

lua && luajit

function fibonacci(n)
  if n < 2 then
    return 1
  end
  return fibonacci(n - 2) + fibonacci(n - 1)
end

io.write(fibonacci(40), "\n")

run

$ time ./lua-5.1.4/src/lua fibonacci.lua 
165580141

real  0m34.514s
user  0m34.492s
sys 0m0.004s

$ time ./LuaJIT-2.0.0-beta9/src/luajit fibonacci.lua 
165580141

real  0m2.598s
user  0m2.583s
sys 0m0.001s

local function should be faster:

local function fibonacci(n)
  if n < 2 then
    return 1
  end
  return fibonacci(n - 2) + fibonacci(n - 1)
end

io.write(fibonacci(40), "\n")

$ time ./lua-5.1.4/src/lua fibonacci.lua.local
165580141

real  0m31.737s
user  0m31.549s
sys 0m0.001s

$ time ./LuaJIT-2.0.0-beta9/src/luajit fibonacci.lua.local
165580141

real  0m2.227s
user  0m2.225s
sys 0m0.001s

c

#include 

int fibonacci(n) {
  if (n < 2) {
    return 1;
  }
  return fibonacci(n - 2) + fibonacci(n - 1);
}

int main() {
  printf("%d\n", fibonacci(40));
  return 0;
}

run

$ gcc fibonacci.c
$ time ./a.out 
165580141

real  0m3.434s
user  0m3.427s
sys 0m0.000s

Compilation with optimization:

$ gcc -O2 fibonacci.c
$ time ./a.out 
165580141

real  0m1.607s
user  0m1.606s
sys 0m0.001s

@fool: How about C++ meta programming, it’s a bit of cheating

#include 

template
struct fibonacci {
    enum { Result = fibonacci::Result + fibonacci::Result };
};

template<>
struct fibonacci<1> {
    enum { Result = 1 };
};

template<>
struct fibonacci<0> {
    enum { Result = 1 };
};

int main(int argc, char *argv[])
{
    printf("%d\n", fibonacci<40>::Result);
    return 0;
}

run

$ g++ fibonacci.template.cpp 
$ time ./a.out
165580141

real  0m0.002s
user  0m0.001s
sys 0m0.001s

go

package main

import "fmt"

func fibonacci(n int) int{
  if (n < 2) {
    return 1
  }
  return fibonacci(n - 2) + fibonacci(n - 1)
}

func main() {
  fmt.Println(fibonacci(10))
}

run

$ 6g fibonacci.go
$ 6l fibonacci.6
$ time ./6.out
165580141

real  0m1.770s
user  0m1.769s
sys 0m0.001s

Conclusion

nodejs is very FAST.
luajit 2X faster than nodejs, Shocking.