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--- libmalloc/libmalloc-140.40.1/tests/MallocBench/fragment.cpp
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * 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 "fragment.h"
-#include <stdlib.h>
-#include <strings.h>
-
-#include "mbmalloc.h"
-
-namespace {
-
-class Node {
-public:
- void* operator new(size_t size)
- {
- return mbmalloc(size);
- }
-
- void operator delete(void* p, size_t size)
- {
- mbfree(p, size);
- }
-
- Node()
- : m_next(0)
- , m_payload()
- {
- }
-
- Node(Node* next)
- : m_next(next)
- , m_payload()
- {
- }
-
- Node* next() { return m_next; }
-
- void validate()
- {
- for (size_t i = 0; i < sizeof(m_payload); ++i) {
- if (m_payload[i])
- abort();
- }
- }
-
-private:
- Node* m_next;
- char m_payload[32 - sizeof(Node*)];
-};
-
-} // namespace
-
-void validate(Node* head)
-{
- for (Node* node = head; node; node = node->next())
- node->validate();
-}
-
-void benchmark_fragment(bool isParallel)
-{
- size_t nodeCount = 128 * 1024;
- if (isParallel)
- nodeCount /= cpuCount();
- size_t replaceCount = nodeCount / 4;
- size_t times = 25;
-
- srandom(0); // For consistency between runs.
-
- for (size_t i = 0; i < times; ++i) {
- Node** nodes = static_cast<Node**>(mbmalloc(nodeCount * sizeof(Node*)));
- for (size_t i = 0; i < nodeCount; ++i)
- nodes[i] = new Node;
-
- for (size_t i = 0; i < replaceCount; ++i) {
- size_t node = random() % nodeCount;
-
- delete nodes[node];
- nodes[node] = new Node;
- }
-
- for (size_t node = 0; node < nodeCount; ++node)
- delete nodes[node];
- mbfree(nodes, nodeCount * sizeof(Node*));
- }
-}
-
-void benchmark_fragment_iterate(bool isParallel)
-{
- size_t nodeCount = 512 * 1024;
- size_t times = 20;
- if (isParallel)
- nodeCount /= cpuCount();
- size_t replaceCount = nodeCount / 4;
-
- srandom(0); // For consistency between runs.
-
- Node** nodes = static_cast<Node**>(mbmalloc(nodeCount * sizeof(Node*)));
- for (size_t i = 0; i < nodeCount; ++i)
- nodes[i] = new Node;
-
- Node* head = 0;
- for (size_t i = 0; i < replaceCount; ++i) {
- size_t node = random() % nodeCount;
-
- delete nodes[node];
- nodes[node] = 0;
- head = new Node(head);
- }
-
- for (size_t i = 0; i < times; ++i)
- validate(head);
-
- for (Node* next ; head; head = next) {
- next = head->next();
- delete head;
- }
-
- for (size_t node = 0; node < nodeCount; ++node) {
- if (!nodes[node])
- continue;
- delete nodes[node];
- }
- mbfree(nodes, nodeCount * sizeof(Node*));
-}