/index.html

## index.html
<!DOCTYPE html>
<meta charset="utf-8">
<style>

body {
  font: 10px sans-serif;
}

.axis path,
.axis line {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
}

.line {
  fill: none;
  stroke: steelblue;
  stroke-width: 1.5px;
}

</style>
<body>
<script src="http://d3js.org/d3.v3.js"></script>
<script>

var margin = {top: 20, right: 80, bottom: 30, left: 50},
    width = 640 - margin.left - margin.right,
    height = 200 - margin.top - margin.bottom;

var x = d3.scale.linear()
    .range([0, width]);

var y = d3.scale.linear()
    .range([height, 0]);

var color = d3.scale.category10();

var xAxis = d3.svg.axis()
    .scale(x)
    .ticks(5)
    .orient("bottom");

var yAxis = d3.svg.axis()
    .scale(y)
    .orient("left")
    .tickFormat(function(d) {
        return d;
    });

var line = d3.svg.line()
    .x(function(d) { return x(d[0]); })
    .y(function(d) { return y(d[1]); });

var svg = d3.select("body").append("svg")
    .attr("width", width + margin.left + margin.right)
    .attr("height", height + margin.top + margin.bottom)
  .append("g")
    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");

d3.json("new.time.json", function(error, ndata) {
d3.json("module.time.json", function(error, mdata) {
  color.domain(['n', 'm']);

  x.domain(d3.extent(ndata, function(d) { return d[0]; }));

  y.domain([0, d3.max([
    d3.max(ndata, function(d) { return d[1]; }),
    d3.max(mdata, function(d) { return d[1]; })
  ])]);

  svg.append("g")
      .attr("class", "x axis")
      .attr("transform", "translate(0," + height + ")")
      .call(xAxis);

  svg.append("g")
      .attr("class", "y axis")
      .call(yAxis)
    .append("text")
      .attr("transform", "rotate(-90)")
      .attr("y", 6)
      .attr("dy", ".71em")
      .style("text-anchor", "end")
      .text("Time (ms)");

  var city = svg.selectAll(".city")
      .data([mdata, ndata])
    .enter().append("g")
      .attr("class", "city");

  city.append("path")
      .attr("class", "line")
      .attr("d", function(d) { return line(d); })
      .style("stroke", function(d) { return color(d); });

});
});
</script>

## instancecounter.js
// module.exports = function instancecounter(c) {
//     var cars = [];
//     var reads = [];
//     for (var i = 0; i < 1000000; i++) {
//         cars.push(c());
//         if (!(i & (i - 1))) {
//             reads.push([i, process.memoryUsage().heapUsed]);
//         }
//     }
//     return reads;
// };

module.exports = function instancecounter(c) {
    var cars = [];
    var reads = [];
    var start = +new Date();
    for (var i = 0; i < 1000000; i++) {
        cars.push(c());
        if (!(i & (i - 1))) {
            reads.push([i, +new Date() - start]);
        }
    }
    return reads;
};

## module.js
function car() {
    var c = {},
        direction = 0;

    c.turn = function(angle) {
        direction += angle;
        return c;
    };

    return c;
}

var instancecounter = require('./instancecounter');
console.log(JSON.stringify(instancecounter(car)));

## module.json
[[0,2243136],[1,2245224],[2,2246112],[4,2246648],[8,2247584],[16,2249320],[32,2253016],[64,2260224],[128,2274296],[256,2304744],[512,2366040],[1024,2485704],[2048,2391480],[4096,2836696],[8192,3730376],[16384,5597432],[32768,8628784],[65536,15793608],[131072,30275448],[262144,60761920],[524288,117828816]]

## module.time.json
[[0,1],[1,1],[2,1],[4,1],[8,1],[16,1],[32,1],[64,1],[128,1],[256,1],[512,1],[1024,1],[2048,3],[4096,4],[8192,6],[16384,10],[32768,28],[65536,42],[131072,87],[262144,232],[524288,347]]

## new.js
function car() {
    this.direction = 0;
}

car.prototype.turn = function(angle) {
    this.direction += angle;
    return this;
};

function makecar() {
    return new car();
}

var instancecounter = require('./instancecounter');
console.log(JSON.stringify(instancecounter(makecar)));

## new.json
[[0,2244016],[1,2245552],[2,2246024],[4,2246352],[8,2247088],[16,2247480],[32,2248488],[64,2250320],[128,2253640],[256,2262584],[512,2278648],[1024,2312296],[2048,2384392],[4096,2107312],[8192,2372032],[16384,2808600],[32768,3303056],[65536,4691000],[131072,8467672],[262144,15341880],[524288,28368176]]

## new.time.json
[[0,0],[1,0],[2,0],[4,0],[8,0],[16,0],[32,0],[64,0],[128,0],[256,0],[512,1],[1024,1],[2048,1],[4096,2],[8192,2],[16384,4],[32768,5],[65536,9],[131072,17],[262144,40],[524288,87]]
	<!DOCTYPE html>
	<meta charset="utf-8">
	<style>

	body {
	font: 10px sans-serif;
	}

	.axis path,
	.axis line {
	fill: none;
	stroke: #000;
	shape-rendering: crispEdges;
	}

	.line {
	fill: none;
	stroke: steelblue;
	stroke-width: 1.5px;
	}

	</style>
	<body>
	<script src="http://d3js.org/d3.v3.js"></script>
	<script>

	var margin = {top: 20, right: 80, bottom: 30, left: 50},
	width = 640 - margin.left - margin.right,
	height = 200 - margin.top - margin.bottom;

	var x = d3.scale.linear()
	.range([0, width]);

	var y = d3.scale.linear()
	.range([height, 0]);

	var color = d3.scale.category10();

	var xAxis = d3.svg.axis()
	.scale(x)
	.ticks(5)
	.orient("bottom");

	var yAxis = d3.svg.axis()
	.scale(y)
	.orient("left")
	.tickFormat(function(d) {
	return d;
	});

	var line = d3.svg.line()
	.x(function(d) { return x(d[0]); })
	.y(function(d) { return y(d[1]); });

	var svg = d3.select("body").append("svg")
	.attr("width", width + margin.left + margin.right)
	.attr("height", height + margin.top + margin.bottom)
	.append("g")
	.attr("transform", "translate(" + margin.left + "," + margin.top + ")");

	d3.json("new.time.json", function(error, ndata) {
	d3.json("module.time.json", function(error, mdata) {
	color.domain(['n', 'm']);

	x.domain(d3.extent(ndata, function(d) { return d[0]; }));

	y.domain([0, d3.max([
	d3.max(ndata, function(d) { return d[1]; }),
	d3.max(mdata, function(d) { return d[1]; })
	])]);

	svg.append("g")
	.attr("class", "x axis")
	.attr("transform", "translate(0," + height + ")")
	.call(xAxis);

	svg.append("g")
	.attr("class", "y axis")
	.call(yAxis)
	.append("text")
	.attr("transform", "rotate(-90)")
	.attr("y", 6)
	.attr("dy", ".71em")
	.style("text-anchor", "end")
	.text("Time (ms)");

	var city = svg.selectAll(".city")
	.data([mdata, ndata])
	.enter().append("g")
	.attr("class", "city");

	city.append("path")
	.attr("class", "line")
	.attr("d", function(d) { return line(d); })
	.style("stroke", function(d) { return color(d); });

	});
	});
	</script>
	// module.exports = function instancecounter(c) {
	// var cars = [];
	// var reads = [];
	// for (var i = 0; i < 1000000; i++) {
	// cars.push(c());
	// if (!(i & (i - 1))) {
	// reads.push([i, process.memoryUsage().heapUsed]);
	// }
	// }
	// return reads;
	// };

	module.exports = function instancecounter(c) {
	var cars = [];
	var reads = [];
	var start = +new Date();
	for (var i = 0; i < 1000000; i++) {
	cars.push(c());
	if (!(i & (i - 1))) {
	reads.push([i, +new Date() - start]);
	}
	}
	return reads;
	};
	function car() {
	var c = {},
	direction = 0;

	c.turn = function(angle) {
	direction += angle;
	return c;
	};

	return c;
	}

	var instancecounter = require('./instancecounter');
	console.log(JSON.stringify(instancecounter(car)));
	function car() {
	this.direction = 0;
	}

	car.prototype.turn = function(angle) {
	this.direction += angle;
	return this;
	};

	function makecar() {
	return new car();
	}

	var instancecounter = require('./instancecounter');
	console.log(JSON.stringify(instancecounter(makecar)));