Data is now incompressible
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dosse91
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3 changed files with 26 additions and 28 deletions
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@ -1,8 +1,8 @@
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# Speedtest in 4k
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# HTML5 Speedtest
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No Flash, No Java, No Websocket, No Bullshit.
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This is a very small Speedtest implemented in Javascript, using XMLHttpRequest and Web Workers.
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This is a very lightweight Speedtest implemented in Javascript, using XMLHttpRequest and Web Workers.
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## Try it
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[Take a Speedtest](http://speedtest.adolfintel.com)
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@ -13,9 +13,9 @@ Only modern browsers are supported (Edge 12+)
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## Requirements
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- A reasonably fast web server
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- Some way to generate garbage data using either the included PHP script, a [big file of random data](http://downloads.adolfintel.com/geth.php?r=speedtest-bigfile), or a symlink to /dev/urandom
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- Your server must not compress the data it sends
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- Your server must accept large POST requests (up to 10 Megabytes), otherwise the upload test will fail
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- Client side, there must not be any type of buffering (such as a proxy), or you may get incorrect results
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- It's also better if your server does not use compression, but it's not mandatory
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## How to use
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See the examples, it's really simple.
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@ -1,5 +1,5 @@
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<?php
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// Disable Compression (would be too easy for 000...)
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// Disable Compression
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@ini_set('zlib.output_compression', 'Off');
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@ini_set('output_buffering', 'Off');
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@ini_set('output_handler', '');
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@ -15,8 +15,8 @@ header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0");
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header("Cache-Control: post-check=0, pre-check=0", false);
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header("Pragma: no-cache");
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// Generate data
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$data=str_repeat("0",1048575)."\n";
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// Deliver chunks of 1048576 bytes (or more - depending on encoding!)
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$data=openssl_random_pseudo_bytes(1048576,false);
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// Deliver chunks of 1048576 bytes
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while(1){
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echo $data;
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flush();
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@ -1,32 +1,29 @@
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var testStatus=0,dlStatus="",ulStatus="",pingStatus="";
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var settings={time_ul:15, time_dl:15, count_ping:35, url_dl:"garbage.php",url_ul:"empty.dat",url_ping:"empty.dat"};
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var settings={time_ul:15,time_dl:15,count_ping:35,url_dl:"garbage.php",url_ul:"empty.dat",url_ping:"empty.dat"};
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var xhr=null;
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this.addEventListener('message', function(e){
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var params=e.data.split(" ");
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if(params[0]=="status"){
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postMessage(testStatus+";"+dlStatus+";"+ulStatus+";"+pingStatus);
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}
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if(params[0]=="start"){
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if(testStatus==0){
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testStatus=1;
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try{
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var s=JSON.parse(e.data.substring(5));
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if(typeof s.url_dl != "undefined") settings.url_dl=s.url_dl;
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if(typeof s.url_ul != "undefined") settings.url_ul=s.url_ul;
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if(typeof s.url_ping != "undefined") settings.url_ping=s.url_ping;
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if(typeof s.time_dl != "undefined") settings.time_dl=s.time_dl;
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if(typeof s.time_ul != "undefined") settings.time_ul=s.time_ul;
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if(typeof s.count_ping != "undefined") settings.count_ping=s.count_ping;
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}catch(e){}
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dlTest(function(){testStatus=2;ulTest(function(){testStatus=3;pingTest(function(){testStatus=4;});});});
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}
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if(params[0]=="start"&&testStatus==0){
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testStatus=1;
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try{
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var s=JSON.parse(e.data.substring(5));
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if(typeof s.url_dl != "undefined") settings.url_dl=s.url_dl;
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if(typeof s.url_ul != "undefined") settings.url_ul=s.url_ul;
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if(typeof s.url_ping != "undefined") settings.url_ping=s.url_ping;
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if(typeof s.time_dl != "undefined") settings.time_dl=s.time_dl;
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if(typeof s.time_ul != "undefined") settings.time_ul=s.time_ul;
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if(typeof s.count_ping != "undefined") settings.count_ping=s.count_ping;
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}catch(e){}
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dlTest(function(){testStatus=2;ulTest(function(){testStatus=3;pingTest(function(){testStatus=4;});});});
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}
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if(params[0]=="abort"){
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try{if(xhr)xhr.abort();}catch(e){}
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testStatus=5;dlStatus="";ulStatus="";pingStatus="";
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}
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});
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function dlTest(done){
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var firstTick=true,startT=new Date().getTime(), prevT=new Date().getTime(),prevLoaded=0,speed=0.0;
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xhr=new XMLHttpRequest();
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@ -54,10 +51,9 @@ function dlTest(done){
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xhr=null;
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done();
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}.bind(this);
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xhr.open("GET", settings.url_dl+"?r="+Math.random(),true);
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xhr.open("GET",settings.url_dl+"?r="+Math.random(),true);
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xhr.send();
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}
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function ulTest(done){
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var firstTick=true,startT=new Date().getTime(), prevT=new Date().getTime(),prevLoaded=0,speed=0.0;
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xhr=new XMLHttpRequest();
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@ -82,10 +78,12 @@ function ulTest(done){
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ulStatus="Fail";
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done();
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}.bind(this);
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xhr.open("POST", settings.url_ul+"?r="+Math.random(),true);
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xhr.send(new ArrayBuffer(10485760));
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xhr.open("POST",settings.url_ul+"?r="+Math.random(),true);
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xhr.setRequestHeader('Content-Encoding','identity');
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var r=new ArrayBuffer(10485760);
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try{var w=new Float32Array(r);for(var i=0;i<w.length;i++)w[i]=Math.random();}catch(e){}
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xhr.send(r);
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}
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function pingTest(done){
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var prevT=null,ping=0.0,i=0;
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var doPing=function(){
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