libstdc++-v3/testsuite/performance/20_util/allocator/map_thread.cc

   1 // Copyright (C) 2004, 2005 Free Software Foundation, Inc.
   2 //
   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)
   7 // any later version.
   8
   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.
  13
  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,
  17 // USA.
  18
  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.
  27
  28 /*
  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.
  32  */
  33
  34 // libstdc++/13823 recast for this testing framework
  35
  36 #include <map>
  37 #include <iostream>
  38 #include <typeinfo>
  39 #include <sstream>
  40 #include <ext/mt_allocator.h>
  41 #include <ext/new_allocator.h>
  42 #include <ext/malloc_allocator.h>
  43 #include <ext/bitmap_allocator.h>
  44 #include <ext/pool_allocator.h>
  45 #include <cxxabi.h>
  46 #include <testsuite_performance.h>
  47
  48 using namespace std;
  49 using __gnu_cxx::__mt_alloc;
  50 using __gnu_cxx::new_allocator;
  51 using __gnu_cxx::malloc_allocator;
  52 using __gnu_cxx::bitmap_allocator;
  53 using __gnu_cxx::__pool_alloc;
  54
  55 // The number of iterations to be performed.
  56 int iterations = 10000;
  57
  58 template<typename Container>
  59   void*
  60   do_loop(void* p = NULL)
  61   {
  62     try
  63       {
  64         for (int c = 0; c < 10; c++)
  65           {
  66             Container m;
  67             for (unsigned i = 0; i < iterations; ++i)
  68               m[i] = i;
  69           }
  70       }
  71     catch(...)
  72       {
  73         // No point allocating all available memory, repeatedly.
  74       }
  75     return p;
  76   }
  77
  78 template<typename Container>
  79   void
  80   test_container(Container obj)
  81   {
  82     using namespace __gnu_test;
  83     int status;
  84
  85     time_counter time;
  86     resource_counter resource;
  87
  88     start_counters(time, resource);
  89
  90     pthread_t  t1, t2, t3, t4;
  91     pthread_create(&t1, NULL, &do_loop<Container>, NULL);
  92     pthread_create(&t2, NULL, &do_loop<Container>, NULL);
  93     pthread_create(&t3, NULL, &do_loop<Container>, NULL);
  94     pthread_create(&t4, NULL, &do_loop<Container>, NULL);
  95
  96     pthread_join(t1, NULL);
  97     pthread_join(t2, NULL);
  98     pthread_join(t3, NULL);
  99     pthread_join(t4, NULL);
 100
 101     stop_counters(time, resource);
 102
 103     std::ostringstream comment;
 104     comment << "iterations: " << iterations << '\t';
 105     comment << "type: " << abi::__cxa_demangle(typeid(obj).name(),
 106                                                0, 0, &status);
 107     report_header(__FILE__, comment.str());
 108     report_performance(__FILE__, string(), time, resource);
 109   }
 110
 111 int main(void)
 112 {
 113   typedef pair<const int, int> pair_type;
 114
 115 #ifdef TEST_T0
 116   test_container(map<int, int>());
 117 #endif
 118 #ifdef TEST_T1
 119   test_container(map<int, int, less<const int>,
 120                  new_allocator<pair_type> >());
 121 #endif
 122 #ifdef TEST_T2
 123   test_container(map<int, int, less<const int>,
 124                  malloc_allocator<pair_type> >());
 125 #endif
 126 #ifdef TEST_T3
 127   test_container(map<int, int, less<const int>,
 128                  __mt_alloc<pair_type> >());
 129 #endif
 130 #ifdef TEST_T4
 131   test_container(map<int, int, less<const int>,
 132                  bitmap_allocator<pair_type> >());
 133 #endif
 134 #ifdef TEST_T5
 135   test_container(map<int, int, less<const int>,
 136                  __pool_alloc<pair_type> >());
 137 #endif
 138   return 0;
 139 }