/* * Copyright (C) 2014 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 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 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. */ #include "CPUCount.h" #include "medium.h" #include #include #include #include #include #include "mbmalloc.h" using namespace std; struct Object { double* p; size_t size; }; void benchmark_medium(CommandLine& commandLine) { size_t times = 1; size_t vmSize = 1ul * 1024 * 1024 * 1024; size_t objectSizeMin = 1 * 1024; size_t objectSizeMax = 8 * 1024; if (commandLine.isParallel()) vmSize /= cpuCount(); size_t objectCount = vmSize / objectSizeMin; srandom(0); // For consistency between runs. for (size_t i = 0; i < times; ++i) { Object* objects = (Object*)mbmalloc(objectCount * sizeof(Object)); bzero(objects, objectCount * sizeof(Object)); for (size_t i = 0, remaining = vmSize; remaining > objectSizeMin; ++i) { size_t size = min(remaining, max(objectSizeMin, random() % objectSizeMax)); objects[i] = { (double*)mbmalloc(size), size }; bzero(objects[i].p, size); remaining -= size; } for (size_t i = 0; i < objectCount && objects[i].p; ++i) mbfree(objects[i].p, objects[i].size); mbfree(objects, objectCount * sizeof(Object)); } }