1 // Copyright (C) 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 // libstdc++/13823 recast for this testing framework
40 #include <ext/mt_allocator.h>
41 #include <ext/new_allocator.h>
42 #include <ext/malloc_allocator.h>
44 #include <testsuite_performance.h>
47 using __gnu_cxx::__mt_alloc;
48 using __gnu_cxx::new_allocator;
49 using __gnu_cxx::malloc_allocator;
51 // The number of iterations to be performed.
52 int iterations = 10000;
54 template<typename Container>
56 do_loop(void* p = NULL)
60 for (int c = 0; c < 10; c++)
64 for (unsigned i = 0; i < iterations; ++i)
70 // No point allocating all available memory, repeatedly.
74 template<typename Container>
76 test_container(Container obj)
78 using namespace __gnu_test;
82 resource_counter resource;
84 clear_counters(time, resource);
85 start_counters(time, resource);
87 pthread_t t1, t2, t3, t4;
88 pthread_create(&t1, NULL, &do_loop<Container>, NULL);
89 pthread_create(&t2, NULL, &do_loop<Container>, NULL);
90 pthread_create(&t3, NULL, &do_loop<Container>, NULL);
91 pthread_create(&t4, NULL, &do_loop<Container>, NULL);
93 pthread_join(t1, NULL);
94 pthread_join(t2, NULL);
95 pthread_join(t3, NULL);
96 pthread_join(t4, NULL);
98 stop_counters(time, resource);
100 std::ostringstream comment;
101 comment << "iterations: " << iterations << '\t';
102 comment << "type: " << abi::__cxa_demangle(typeid(obj).name(),
104 report_header(__FILE__, comment.str());
105 report_performance(__FILE__, string(), time, resource);
111 test_container(map<int, int>());
114 test_container(map<int, int, less<const int>, new_allocator<int> >());
117 test_container(map<int, int, less<const int>, malloc_allocator<int> >());
120 test_container(map<int, int, less<const int>,
121 __mt_alloc< pair<const int, int> > >());