Difference between revisions of "Speed test"

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Line 1: Line 1:
 
Benchmarking the speed of your browser. This application does 1000 updates of a JSXGraph construction. The main cpu work is spent on computing the Bezier curve and plot it and on updating the SVG image of the construction.
 
Benchmarking the speed of your browser. This application does 1000 updates of a JSXGraph construction. The main cpu work is spent on computing the Bezier curve and plot it and on updating the SVG image of the construction.
 
<html>
 
<html>
<form><input type="button" onClick="speedtest()" value="Start speed test">
+
<form><input type="button" id="startbutton" value="Start speed test">
 
</form>
 
</form>
 
<h2 id="output">Update speed: - fps</h2>
 
<h2 id="output">Update speed: - fps</h2>
Line 10: Line 10:
 
board = JXG.JSXGraph.initBoard('box', {boundingbox:[-4,4,4,-4], keepaspectratio:false, axis:true});
 
board = JXG.JSXGraph.initBoard('box', {boundingbox:[-4,4,4,-4], keepaspectratio:false, axis:true});
 
p = [];
 
p = [];
for (i=0;i<2*3+1;i++) {
+
for (i = 0; i < 2*3 + 1; i++) {
     if (i%3==0) {
+
     if (i%3 == 0) {
 
         col = 'red';
 
         col = 'red';
 
     } else {
 
     } else {
 
         col = 'blue';
 
         col = 'blue';
 
     }
 
     }
     if (i==0) {
+
     if (i == 0) {
         p.push(board.createElement('point',[-3,3], {size:8, strokeColor:col, fillColor:col}));
+
         p.push(board.create('point',[-3,3], {size:8, strokeColor:col, fillColor:col}));
 
     } else {
 
     } else {
         p.push(board.createElement('point',[Math.random()*8-4,Math.random()*8-4],{size:8, strokeColor:col,fillColor:col}));
+
         p.push(board.create('point',[Math.random()*8-4,Math.random()*8-4],{size:8, strokeColor:col,fillColor:col}));
 
     }
 
     }
 
}
 
}
var c = board.createElement('curve', JXG.Math.Numerics.bezier(p),{strokecolor:'blue', name:"curve", strokeWidth:5, lastArrow:true});  
+
var c = board.create('curve', JXG.Math.Numerics.bezier(p),{strokecolor:'blue', name:"curve", strokeWidth:5, lastArrow:true});  
  
count = 0;
+
var count = 0,
maxcount = 1000;
+
    maxcount = 1000,
sgn = 1;
+
    sgn = 1,
startTime = 0;
+
    startTime = 0;
  
unit = function() {
+
var unit = function() {
 
     var len = p.length,
 
     var len = p.length,
 
         j = Math.floor(len*Math.random()),
 
         j = Math.floor(len*Math.random()),
Line 45: Line 45:
 
     }
 
     }
  
speedtest = function() {
+
var speedtest = function() {
 
     count = 0;
 
     count = 0;
 
     startTime = new Date();
 
     startTime = new Date();
 
     var ti = setTimeout(unit,0);
 
     var ti = setTimeout(unit,0);
 
};
 
};
 +
 +
document.getElementById("startbutton").addEventListener('click', speedtest);
 
</jsxgraph>
 
</jsxgraph>
  
Line 64: Line 66:
 
     }
 
     }
 
     if (i==0) {
 
     if (i==0) {
         p.push(board.createElement('point',[-3,3], {size:8, strokeColor:col, fillColor:col}));
+
         p.push(board.create('point',[-3,3], {size:8, strokeColor:col, fillColor:col}));
 
     } else {
 
     } else {
         p.push(board.createElement('point',[Math.random()*8-4,Math.random()*8-4],{size:8, strokeColor:col,fillColor:col}));
+
         p.push(board.create('point',[Math.random()*8-4,Math.random()*8-4],{size:8, strokeColor:col,fillColor:col}));
 
     }
 
     }
 
}
 
}
var c = board.createElement('curve', JXG.Math.Numerics.bezier(p),{strokecolor:'blue', name:"curve", strokeWidth:5, lastArrow:true});  
+
var c = board.create('curve', JXG.Math.Numerics.bezier(p),{strokecolor:'blue', name:"curve", strokeWidth:5, lastArrow:true});  
  
 
count = 0;
 
count = 0;

Revision as of 14:17, 3 March 2021

Benchmarking the speed of your browser. This application does 1000 updates of a JSXGraph construction. The main cpu work is spent on computing the Bezier curve and plot it and on updating the SVG image of the construction.

Update speed: - fps

The underlying JavaScript code

var board, i, p, col;
board = JXG.JSXGraph.initBoard('box', {boundingbox:[-4,4,4,-4], keepaspectratio:false, axis:true});
p = [];
for (i=0;i<2*3+1;i++) {
    if (i%3==0) {
        col = 'red';
    } else {
        col = 'blue';
    }
    if (i==0) {
        p.push(board.create('point',[-3,3], {size:8, strokeColor:col, fillColor:col}));
    } else {
        p.push(board.create('point',[Math.random()*8-4,Math.random()*8-4],{size:8, strokeColor:col,fillColor:col}));
    }
}
var c = board.create('curve', JXG.Math.Numerics.bezier(p),{strokecolor:'blue', name:"curve", strokeWidth:5, lastArrow:true}); 

count = 0;
maxcount = 1000;
sgn = 1;
startTime = 0;

unit = function() {
    var len = p.length,
        j = Math.floor(len*Math.random()),
        now;
    p[j].setPosition(JXG.COORDS_BY_USER, [sgn*3*Math.random(), -sgn*3*Math.random()]);
    board.update();
    sgn *= -1;
    count++;
    if (count%100==0) {
        now = new Date();
        document.getElementById('output').innerHTML = "Update speed: " + (Math.round(100*(1000*count/(now.getTime()-startTime.getTime())))/100.0) + ' fps';
    }
    if (count<maxcount)
        setTimeout(unit,0);
    }

speedtest = function() {
    count = 0;
    startTime = new Date();
    var ti = setTimeout(unit,0);
};