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/*
* Copyright (c) 2010, 2013, 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.
*/
/**
* A simple benchmark module that can be loaded
* in order to time how many times a method executes
* in a fixed number of seconds
*/
var benchmark = function(method, timeInMillis, args) {
var hz,
period,
startTime = new Date,
runs = 0;
do {
method.apply(args);
runs++;
totalTime = new Date - startTime;
} while (totalTime < timeInMillis);
// convert ms to seconds
totalTime /= 1000;
// period → how long per operation
period = totalTime / runs;
// hz → the number of operations per second
hz = 1 / period;
return hz;
};
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