map_mt_find.cc

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// Copyright (C) 2004 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING.  If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.

// As a special exception, you may use this file as part of a free software
// library without restriction.  Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License.  This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.

// 2004-03-11  Dhruv Matani  <[e-mail]>

#include <new>
#include <map>
#include <cstdlib>
#include <string>
#include <pthread.h>

#include <typeinfo>
#include <sstream>
#include <ext/mt_allocator.h>
#include <ext/malloc_allocator.h>
#include <cxxabi.h>
#include <testsuite_performance.h>
#include <ext/bitmap_allocator.h>
#include <ext/pool_allocator.h>

using namespace std;
using __gnu_cxx::malloc_allocator;
using __gnu_cxx::__mt_alloc;
using __gnu_cxx::bitmap_allocator;
using __gnu_cxx::__pool_alloc;

typedef int test_type;

using namespace __gnu_cxx;
using namespace std;

bool less_int (int x1, int x2) { return x1<x2; }


#if defined USE_FUNCTION_COMPARE
#define COMPARE_T typeof(&less_int)
#define COMPARE_F &less_int
#else
#define COMPARE_T std::less<int>
#define COMPARE_F std::less<int>()
#endif

template <typename Alloc>
void *find_proc (void *_vptr)
{
  map<int, string, COMPARE_T, Alloc> *_mptr = 
    reinterpret_cast<map<int, string, COMPARE_T, Alloc>*>(_vptr);

  for (int i = 0; i < 700000; ++i)
    {
      int Finder = rand() % 2000000;
      _mptr->find (Finder);
    }
  return _vptr;
}


template <typename Alloc>
int do_test ()
{
  COMPARE_T _comp = COMPARE_F;
  map<int, string, COMPARE_T, Alloc> imap (_comp);
  int x = 2;
  pthread_t thr[3];
  const int Iter = 1000000;

  while (x--)
    {
      for (int i = 0; i < 300000; ++i)
	imap.insert (make_pair (rand()%1000000, "_test_data"));

      for (int i = 0; i < 100000; ++i)
	imap.insert (make_pair (rand()%2000000, "_test_data"));

      pthread_create (&thr[0], NULL, find_proc<Alloc>, (void*)&imap);
      pthread_create (&thr[1], NULL, find_proc<Alloc>, (void*)&imap);
      pthread_create (&thr[2], NULL, find_proc<Alloc>, (void*)&imap);

      pthread_join (thr[0], 0);
      pthread_join (thr[1], 0);
      pthread_join (thr[2], 0);

      imap.clear ();
    }
  return Iter;
}

template <typename Alloc>
void exec_tests ()
{
  using namespace __gnu_test;
  int status;
  COMPARE_T _comp = COMPARE_F;
  map<int, string, COMPARE_T, Alloc> obj (_comp);

  time_counter time;
  resource_counter resource;
  clear_counters(time, resource);
  start_counters(time, resource);
  int test_iterations = do_test<Alloc>();
  stop_counters(time, resource);
 
  std::ostringstream comment;
  comment << "iterations: " << test_iterations <<endl;
  comment << "type: " << abi::__cxa_demangle(typeid(obj).name(),
					     0, 0, &status);
  report_header(__FILE__, comment.str());
  report_performance(__FILE__, string(), time, resource);
}


int main()
{
#ifdef TEST_T0
  exec_tests<new_allocator<int> >();
#endif
#ifdef TEST_T1
  exec_tests<malloc_allocator<int> >();
#endif
#ifdef TEST_T2
  exec_tests<bitmap_allocator<int> >();
#endif
#ifdef TEST_T3
  exec_tests<__mt_alloc<int> >();
#endif
#ifdef TEST_T4
  exec_tests<__pool_alloc<int> >();
#endif
}