| /* |
| * 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 "churn.h" |
| #include <memory> |
| #include <stddef.h> |
| |
| #include "mbmalloc.h" |
| |
| struct HeapDouble { |
| void* operator new(size_t size) { return mbmalloc(size); } |
| void operator delete(void* p, size_t size) { mbfree(p, size); } |
| |
| HeapDouble(double d) : value(d) { } |
| const HeapDouble& operator+=(const HeapDouble& other) { value += other.value; return *this; } |
| double value; |
| }; |
| |
| void benchmark_churn(CommandLine& commandLine) |
| { |
| size_t times = 7000000; |
| if (commandLine.isParallel()) |
| times /= cpuCount(); |
| |
| auto total = std::unique_ptr<HeapDouble>(new HeapDouble(0.0)); |
| for (size_t i = 0; i < times; ++i) { |
| auto heapDouble = std::unique_ptr<HeapDouble>(new HeapDouble(i)); |
| *total += *heapDouble; |
| } |
| } |