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