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diff --git a/swat/apps/qooxdoo-examples/performance/GlobalObject_3.html b/swat/apps/qooxdoo-examples/performance/GlobalObject_3.html new file mode 100644 index 0000000000..7d8f9490f7 --- /dev/null +++ b/swat/apps/qooxdoo-examples/performance/GlobalObject_3.html @@ -0,0 +1,53 @@ +<html> +<head> + <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> + <title>qooxdoo » Demo</title> + <link type="text/css" rel="stylesheet" href="../../resource/css/layout.css"/> + <!--[if IE]> + <link type="text/css" rel="stylesheet" href="../../resource/css/layout_ie.css"/> + <![endif]--> + <script type="text/javascript" src="../../script/qx.js"></script> +</head> +<body> + <script type="text/javascript" src="../../script/layout.js"></script> + + <div id="demoDescription"> + <p>JS Object Storage Performance</p> + + <h1>Test Description</h1> + <p>Precreate 50.000 objects (globally stored). After this create 10.000 new (non stored) objects inside a loop.</p> + <p>Use removeAll to clean up global storage after first loop.</p> + + <h1>Result</h1> + <p>The additional cleanup (remove all entries) of the global storage optimizes performance after the first loop. First loop is done after ~1150ms. The following loop needs ~490ms. Not bad, but poorly compared to the version, where the storage have never exist before. (See first examples, which executes in ~350ms.)</p> + <p>It makes no difference if we use a global or a local variable here. It's identical to LocalObject_3.html.</p> + </div> + + <script type="text/javascript"> + qx.core.Init.getInstance().defineMain(function() + { + window.store = []; + + for (var i=0; i<50000; i++) { + window.store.push({}); + }; + + function test() + { + var _s = (new Date).valueOf(); + + for (var i=0; i<10000; i++) { + new Object() + }; + + window.status = "time: " + (new Date).valueOf() + " | measured: " + ((new Date).valueOf() - _s) + "ms"; + window.setTimeout(test, 1000); + } + + test(); + + qx.lang.Array.removeAll(window.store); + }); + </script> +</body> +</html> |