1 // Copyright (C) 2003, 2004 Free Software Foundation, Inc.
3 // This file is part of the GNU ISO C++ Library. This library is free
4 // software; you can redistribute it and/or modify it under the
5 // terms of the GNU General Public License as published by the
6 // Free Software Foundation; either version 2, or (at your option)
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License along
15 // with this library; see the file COPYING. If not, write to the Free
16 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
19 // As a special exception, you may use this file as part of a free software
20 // library without restriction. Specifically, if other files instantiate
21 // templates or use macros or inline functions from this file, or you compile
22 // this file and link it with other files to produce an executable, this
23 // file does not by itself cause the resulting executable to be covered by
24 // the GNU General Public License. This exception does not however
25 // invalidate any other reasons why the executable file might be covered by
26 // the GNU General Public License.
29 * The goal with this application is to compare the performance
30 * between different std::allocator implementations. The results are
31 * influenced by the underlying allocator in the "C" library, malloc.
34 // 2003-02-05 Stefan Olsson <stefan@snon.net>
43 #include <ext/mt_allocator.h>
44 #include <ext/new_allocator.h>
45 #include <ext/malloc_allocator.h>
46 #include <ext/bitmap_allocator.h>
47 #include <ext/pool_allocator.h>
49 #include <testsuite_performance.h>
53 typedef int test_type;
55 // The number of iterations to be performed.
56 int iterations = 10000;
58 // The number of values to insert in the container, 32 will cause 5
59 // (re)allocations to be performed (sizes 4, 8, 16, 32 and 64)
60 // This means that all allocations are within _MAX_BYTES = 128 as
61 // defined in stl_alloc.h for __pool_alloc. Whether or not this
62 // value is relevant in "the real world" or not I don't know and
63 // should probably be investigated in more detail.
64 int insert_values = 128;
66 template<typename TestType>
67 struct value_type : public pair<TestType, TestType>
69 value_type() : pair<TestType, TestType>(0, 0) { }
71 inline value_type operator++() { return ++this->first, *this; }
72 inline operator TestType() const { return this->first; }
75 template<typename Container>
80 int test_iterations = 0;
81 value_type<test_type> test_value;
82 while (test_iterations < iterations)
84 for (int j = 0; j < insert_values; ++j)
85 obj.insert(obj.end(), ++test_value);
90 template<typename Container>
92 do_test(void* p = NULL)
97 template<typename Container>
99 test_container(Container obj, bool run_threaded = false)
101 using namespace __gnu_test;
105 resource_counter resource;
106 clear_counters(time, resource);
107 start_counters(time, resource);
111 do_loop<Container>();
115 #if defined (_GLIBCXX_GCC_GTHR_POSIX_H) && !defined (NOTHREAD)
116 pthread_t t1, t2, t3, t4;
117 pthread_create(&t1, 0, &do_test<Container>, 0);
118 pthread_create(&t2, 0, &do_test<Container>, 0);
119 pthread_create(&t3, 0, &do_test<Container>, 0);
120 pthread_create(&t4, 0, &do_test<Container>, 0);
122 pthread_join(t1, NULL);
123 pthread_join(t2, NULL);
124 pthread_join(t3, NULL);
125 pthread_join(t4, NULL);
131 stop_counters(time, resource);
133 std::ostringstream comment;
135 comment << "4-way threaded iterations: " << iterations*4 << '\t';
137 comment << "iterations: " << iterations << '\t';
138 comment << "type: " << abi::__cxa_demangle(typeid(obj).name(),
140 report_header(__FILE__, comment.str());
141 report_performance(__FILE__, string(), time, resource);
144 // http://gcc.gnu.org/ml/libstdc++/2001-05/msg00105.html
145 // http://gcc.gnu.org/ml/libstdc++/2003-05/msg00231.html
148 typedef __gnu_cxx::malloc_allocator<test_type> m_alloc_type;
149 typedef __gnu_cxx::new_allocator<test_type> n_alloc_type;
150 typedef __gnu_cxx::__mt_alloc<test_type> so_alloc_type;
151 typedef __gnu_cxx::bitmap_allocator<test_type> bit_alloc_type;
152 typedef __gnu_cxx::__pool_alloc<test_type> po_alloc_type;
155 test_container(vector<test_type, m_alloc_type>());
158 test_container(vector<test_type, n_alloc_type>());
161 test_container(vector<test_type, so_alloc_type>());
164 test_container(vector<test_type, bit_alloc_type>());
167 test_container(vector<test_type, po_alloc_type>());
171 test_container(list<test_type, m_alloc_type>());
174 test_container(list<test_type, n_alloc_type>());
177 test_container(list<test_type, so_alloc_type>());
180 test_container(list<test_type, bit_alloc_type>());
183 test_container(list<test_type, po_alloc_type>());
187 test_container(deque<test_type, m_alloc_type>());
190 test_container(deque<test_type, n_alloc_type>());
193 test_container(deque<test_type, so_alloc_type>());
196 test_container(deque<test_type, bit_alloc_type>());
199 test_container(deque<test_type, po_alloc_type>());
202 typedef less<test_type> compare_type;
204 test_container(map<test_type, test_type, compare_type, m_alloc_type>());
207 test_container(map<test_type, test_type, compare_type, n_alloc_type>());
210 test_container(map<test_type, test_type, compare_type, so_alloc_type>());
213 test_container(map<test_type, test_type, compare_type, bit_alloc_type>());
216 test_container(map<test_type, test_type, compare_type, po_alloc_type>());
220 test_container(set<test_type, compare_type, m_alloc_type>());
223 test_container(set<test_type, compare_type, n_alloc_type>());
226 test_container(set<test_type, compare_type, so_alloc_type>());
229 test_container(set<test_type, compare_type, bit_alloc_type>());
232 test_container(set<test_type, compare_type, po_alloc_type>());
236 test_container(vector<test_type, m_alloc_type>(), true);
239 test_container(vector<test_type, n_alloc_type>(), true);
242 test_container(vector<test_type, so_alloc_type>(), true);
245 test_container(vector<test_type, bit_alloc_type>(), true);
248 test_container(vector<test_type, po_alloc_type>(), true);
252 test_container(list<test_type, m_alloc_type>(), true);
255 test_container(list<test_type, n_alloc_type>(), true);
258 test_container(list<test_type, so_alloc_type>(), true);
261 test_container(list<test_type, bit_alloc_type>(), true);
264 test_container(list<test_type, po_alloc_type>(), true);
268 test_container(deque<test_type, m_alloc_type>(), true);
271 test_container(deque<test_type, n_alloc_type>(), true);
274 test_container(deque<test_type, so_alloc_type>(), true);
277 test_container(deque<test_type, bit_alloc_type>(), true);
280 test_container(deque<test_type, po_alloc_type>(), true);
283 typedef less<test_type> compare_type;
285 test_container(map<test_type, test_type, compare_type, m_alloc_type>(), true);
288 test_container(map<test_type, test_type, compare_type, n_alloc_type>(), true);
291 test_container(map<test_type, test_type, compare_type, so_alloc_type>(), true);
294 test_container(map<test_type, test_type, compare_type, bit_alloc_type>(), true);
297 test_container(map<test_type, test_type, compare_type, po_alloc_type>(), true);
301 test_container(set<test_type, compare_type, m_alloc_type>(), true);
304 test_container(set<test_type, compare_type, n_alloc_type>(), true);
307 test_container(set<test_type, compare_type, so_alloc_type>(), true);
310 test_container(set<test_type, compare_type, bit_alloc_type>(), true);
313 test_container(set<test_type, compare_type, po_alloc_type>(), true);