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explunit/README.md

Created September 2, 2013 14:49
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D3 browser memory usage test
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README.md

D3 browser memory usage test

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index.html
<!DOCTYPE html>
<meta http-equiv="X-UA-Compatible" content="IE=9">
<html>
<body>
<script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script>
<script type="text/javascript">
var svg = d3.select("body").append("svg").attr( {width: 800, height: 800 });
var data = new Array(1000);
function randomizeData() {
for (var i = data.length - 1; i >= 0; i--) {
data[i] = { id: Math.random(), x: Math.random()*800, y: Math.random()*800 }
};
}
function update() {
randomizeData();
var circles = svg.selectAll("circle")
.data(data, function(d) { return d.id; } );
circles.exit().remove();
circles.enter().append("circle")
.attr("id", function(d) { return d.id; })
.attr("cx", function(d) { return d.x; })
.attr("cy", function(d) { return d.y; })
.attr( { r: 5, fill: 'blue' })
.on("mouseenter", function(d) { console.log('mouse enter') });
}
setInterval(update, 1000);
</script>
</body>
</html>
@webxl
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webxl commented Mar 21, 2014

Thanks. Chrome peaks at about 45 MB running this and then sawtooths. IE11 got to 500 MB before the browser treated the site as being unresponsive.

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