Index: conformance/more/performance/jsToGLOverhead.html |
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--- conformance/more/performance/jsToGLOverhead.html (revision 0) |
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+<!DOCTYPE html> |
+<html> |
+<head> |
+<meta charset="utf-8"> |
+<!-- |
+ |
+/* |
+** Copyright (c) 2012 The Khronos Group Inc. |
+** |
+** Permission is hereby granted, free of charge, to any person obtaining a |
+** copy of this software and/or associated documentation files (the |
+** "Materials"), to deal in the Materials without restriction, including |
+** without limitation the rights to use, copy, modify, merge, publish, |
+** distribute, sublicense, and/or sell copies of the Materials, and to |
+** permit persons to whom the Materials are furnished to do so, subject to |
+** the following conditions: |
+** |
+** The above copyright notice and this permission notice shall be included |
+** in all copies or substantial portions of the Materials. |
+** |
+** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
+** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
+** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
+** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
+** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
+** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
+** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. |
+*/ |
+ |
+--> |
+<link rel="stylesheet" type="text/css" href="../unit.css" /> |
+<script type="application/x-javascript" src="../unit.js"></script> |
+<script type="application/x-javascript" src="../util.js"></script> |
+<script type="application/x-javascript"> |
+ |
+Tests.autorun = false; |
+Tests.message = "This might take a second or two"; |
+ |
+Tests.testGLOverhead = function() { |
+ var gl = document.getElementById("gl").getContext(GL_CONTEXT_ID); |
+ var fakeGl = {getError: function(){ return 0; }}; |
+ time("testGLOverhead", function() { |
+ for (var i=0; i<1000000; i++) |
+ gl.getError(); |
+ }); |
+ time("testJSOverhead", function() { |
+ for (var i=0; i<1000000; i++) |
+ fakeGl.getError(); |
+ }); |
+ time("testLoopOverhead", function() { |
+ for (var i=0; i<1000000;) |
+ i++; |
+ }); |
+} |
+ |
+</script> |
+<style>canvas{ position:absolute; }</style> |
+</head><body> |
+<canvas id="gl" width="16" height="16"></canvas> |
+<h3>1000000x gl.getError() (measuring JS->GL call overhead)</h3> |
+<p id="testGLOverhead"></p> |
+<h3>1000000x fakeGl.getError() (measuring JS->JS call overhead)</h3> |
+<p id="testJSOverhead"></p> |
+<h3>1000000x i++ (measuring loop overhead)</h3> |
+<p id="testLoopOverhead"></p> |
+</body></html> |
+ |
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