[code] | array-speed.php | | |
<body>
<div id=result></div>
</body>
<script>
function testcase(){
var result=document.getElementById('result');
var retstr=[];
var microtime = function() {
var now = new Date().getTime() / 1000;
return now ;
}
function runner(name,f){
setTimeout(function(){
var start=microtime();
sum=-1;sq=0;sq2=0;
f();
var end=microtime();
var tt=end-start;
retstr.push({str:"<tr><td>"+name+"</td><td>"+sum+"</td><td><b>"+(Math.round(tt*1000)/1000)+"</b></td>",result:tt});
},1);
}
var testlimit=10000000;
var subv= 0.5567565;
var subm = 1.0/subv;
var irnd = Math.random()/1.1234234234324;
function testmul(){
var t1=0,rnd=irnd,tl=testlimit;
for( var i =0; tl; ++i,--tl){
t1+=rnd*subm;
}
sum=t1;
return t1;
}
function testsub(){
var t1=0,rnd=irnd, tl=testlimit;
for( var i =0; tl; ++i,--tl){
t1+=rnd/subv;
}
sum=t1;
return t1;
}
function teste1(){
var t1=0;//testlimit*4;
for( var i =0; i<testlimit; ++i){
t1+=1;
}
sum=t1;
return t1;
}
function teste2(){
var t1=0,rnd=irnd, tl=testlimit;
for( var i =0; tl; ++i,--tl){
t1+=1;//Math.random()/subv;
}
sum=t1;
return t1;
}
//runner('zeroold', teste1);
//runner('zerotest', teste2);
runner('test mul', testmul);
runner('test sub', testsub);
//runner("for hash",htestFor);
//runner("each hash",htestEach);
//runner("i in hash",htestIIn);
setTimeout(function(){
//find best
var min=0;
for(var i in retstr){
if(retstr[i].result<min || !min){
min=retstr[i].result;
}
}
var out=[];
for(var i in retstr){
out.push(retstr[i].str+"<td>"+Math.round(100*retstr[i].result/min)+"</td></tr>");
}
result.innerHTML="min:"+min+"<br /><table>"+out.join("\n")+"</table>";
},100);
// });
}
setTimeout(testcase,2000);
</script>
ready...<br />
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[CODE]/array-speed.php
|
