node/benchmark/function_call/bench.js at master · r2d2coder/node · GitHub

43 lines (27 loc) · 766 Bytes

var binding = require('./build/default/binding');

c = 0

function js() {

return c++; //(new Date()).getTime();

}

var cxx = binding.hello;

var i, N = 100000000;

console.log(js());

console.log(cxx());

var start = new Date();

for (i = 0; i < N; i++) {

js();

}

var jsDiff = new Date() - start;

console.log(N +" JS function calls: " + jsDiff);

var start = new Date();

for (i = 0; i < N; i++) {

cxx();

}

var cxxDiff = new Date() - start;

console.log(N +" C++ function calls: " + cxxDiff);

function toMicro (diff) {

return (diff / N) * 1000000;

}

console.log("\nJS function call speed: %d microseconds", toMicro(jsDiff));

console.log("C++ function call speed: %d microseconds", toMicro(cxxDiff));

console.log("\nJS speedup " + (cxxDiff / jsDiff));

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