Created
January 21, 2013 22:56
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<!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 Math.round(d / (1024 * 1024)) + 'mb'; | |
}); | |
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.json", function(error, ndata) { | |
d3.json("module.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("Memory Usage"); | |
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> |
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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; | |
}; |
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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))); |
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[[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]] |
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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))); |
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[[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]] |
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