sunspider-compare-results.js

linux下开源浏览器WebKit的源码,市面上的很多商用浏览器都是移植自WebKit

/*
 * Copyright (C) 2007 Apple Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 */

function sunspiderCompareResults(output1, output2)
{
    var count1 = output1.length;
    var count2 = output2.length;

    var itemTotals1 = {};
    itemTotals1.length = count1;
    
    var total1 = 0;
    var categoryTotals1 = {};
    var testTotalsByCategory1 = {};
    
    var mean1 = 0;
    var categoryMeans1 = {};
    var testMeansByCategory1 = {};
    
    var stdDev1 = 0;
    var categoryStdDevs1 = {};
    var testStdDevsByCategory1 = {};
    
    var stdErr1 = 0;
    var categoryStdErrs1 = {};
    var testStdErrsByCategory1 = {};
    
    var itemTotals2 = {};
    itemTotals2.length = count2;
    
    var total2 = 0;
    var categoryTotals2 = {};
    var testTotalsByCategory2 = {};
    
    var mean2 = 0;
    var categoryMeans2 = {};
    var testMeansByCategory2 = {};
    
    var stdDev2 = 0;
    var categoryStdDevs2 = {};
    var testStdDevsByCategory2 = {};
    
    var stdErr2 = 0;
    var categoryStdErrs2 = {};
    var testStdErrsByCategory2 = {};
    
    function initialize()
    {
        itemTotals1 = {total: []};
        
        for (var i = 0; i < categories.length; i++) {
            var category = categories[i];
            itemTotals1[category] = [];
            categoryTotals1[category] = 0;
            testTotalsByCategory1[category] = {};
            categoryMeans1[category] = 0;
            testMeansByCategory1[category] = {};
            categoryStdDevs1[category] = 0;
            testStdDevsByCategory1[category] = {};
            categoryStdErrs1[category] = 0;
            testStdErrsByCategory1[category] = {};
        }
        
        for (var i = 0; i < tests.length; i++) {
            var test = tests[i];
            itemTotals1[test] = [];
            var category = test.replace(/-.*/, "");
            testTotalsByCategory1[category][test] = 0;
            testMeansByCategory1[category][test] = 0;
            testStdDevsByCategory1[category][test] = 0;
            testStdErrsByCategory1[category][test] = 0;
        }
        
        for (var i = 0; i < count1; i++) {
            itemTotals1["total"][i] = 0;
            for (var category in categoryTotals1) {
                itemTotals1[category][i] = 0;
                for (var test in testTotalsByCategory1[category]) {
                    itemTotals1[test][i] = 0;
                }
            }
        }
        
        itemTotals2 = {total: []};
        
        for (var i = 0; i < categories.length; i++) {
            var category = categories[i];
            itemTotals2[category] = [];
            categoryTotals2[category] = 0;
            testTotalsByCategory2[category] = {};
            categoryMeans2[category] = 0;
            testMeansByCategory2[category] = {};
            categoryStdDevs2[category] = 0;
            testStdDevsByCategory2[category] = {};
            categoryStdErrs2[category] = 0;
            testStdErrsByCategory2[category] = {};
        }
        
        for (var i = 0; i < tests.length; i++) {
            var test = tests[i];
            itemTotals2[test] = [];
            var category = test.replace(/-.*/, "");
            testTotalsByCategory2[category][test] = 0;
            testMeansByCategory2[category][test] = 0;
            testStdDevsByCategory2[category][test] = 0;
            testStdErrsByCategory2[category][test] = 0;
        }
        
        for (var i = 0; i < count2; i++) {
            itemTotals2["total"][i] = 0;
            for (var category in categoryTotals2) {
                itemTotals2[category][i] = 0;
                for (var test in testTotalsByCategory2[category]) {
                    itemTotals2[test][i] = 0;
                }
            }
        }
        
    }
    
    function computeItemTotals(output, itemTotals)
    {
        for (var i = 0; i < output.length; i++) {
            var result = output[i];
            for (var test in result) {
                var time = result[test];
                var category = test.replace(/-.*/, "");
                itemTotals["total"][i] += time;
                itemTotals[category][i] += time;
                itemTotals[test][i] += time;
            }
        }
    }
    
    function computeTotals(output, categoryTotals, testTotalsByCategory)
    {
        var total = 0;
        
        for (var i = 0; i < output.length; i++) {
            var result = output[i];
            for (var test in result) {
                var time = result[test];
                var category = test.replace(/-.*/, "");
                total += time;
                categoryTotals[category] += time;
                testTotalsByCategory[category][test] += time;
            }
        }
        
        return total;
    }
    
    function computeMeans(count, total, categoryTotals, categoryMeans, testTotalsByCategory, testMeansByCategory)
    {
        var mean = total / count;
        for (var category in categoryTotals) {
            categoryMeans[category] = categoryTotals[category] / count;
            for (var test in testTotalsByCategory[category]) {
                testMeansByCategory[category][test] = testTotalsByCategory[category][test] / count;
            }
        }
        return mean;
    }
    
    function standardDeviation(mean, items)
    {
        var deltaSquaredSum = 0;
        for (var i = 0; i < items.length; i++) {
            var delta = items[i] - mean;