| /* |
| * Copyright (c) 2010, 2014, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /** |
| * Simple benchmark to measure charCodeAt specialized method performance |
| */ |
| |
| var str = "sghjkdsfkjghsdfjkfkjdfkjdfjkdfjkfdjkfdkfldjfhdfpkjdhafgksdjfgldfgjldfkjgdlfjgldkfjgkldfj"; |
| var RESULT1 = 9187; |
| var RESULT2 = 1496; |
| |
| function f() { |
| var len = str.length; |
| var c = 0; |
| for (var i = 0; i < len; i++) { |
| c += str.charCodeAt(i); |
| } |
| return c; |
| } |
| |
| function bench(res) { |
| var d = new Date; |
| var sum = 0; |
| for (var i = 0; i < 1e6; i++) { |
| sum |= f(); |
| } |
| if (sum == res) { |
| print("Verified OK"); |
| } else { |
| print("Verification failed " + sum + " should be " + res); |
| } |
| print((new Date - d) + " ms"); |
| } |
| |
| bench(RESULT1); |
| |
| print("Replacing charCodeAt... "); |
| |
| String.prototype.charCodeAt = function() { return 17; } |
| |
| bench(RESULT2); |
| |
| print("Done"); |