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//////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga 2007-2013. Distributed under the Boost
// Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// See http://www.boost.org/libs/container for documentation.
//
//////////////////////////////////////////////////////////////////////////////
#ifdef _MSC_VER
#pragma warning (disable : 4512)
#endif
#include <boost/container/allocator.hpp>
#define BOOST_CONTAINER_VECTOR_ALLOC_STATS
#include <boost/container/vector.hpp>
#include <memory> //std::allocator
#include <iostream> //std::cout, std::endl
#include <cassert> //assert
#include <boost/timer/timer.hpp>
using boost::timer::cpu_timer;
using boost::timer::cpu_times;
using boost::timer::nanosecond_type;
namespace bc = boost::container;
typedef std::allocator<int> StdAllocator;
typedef bc::allocator<int, 2, bc::expand_bwd | bc::expand_fwd> AllocatorPlusV2Mask;
typedef bc::allocator<int, 2, bc::expand_fwd> AllocatorPlusV2;
typedef bc::allocator<int, 1> AllocatorPlusV1;
template<class Allocator> struct get_allocator_name;
template<> struct get_allocator_name<StdAllocator>
{ static const char *get() { return "StdAllocator"; } };
template<> struct get_allocator_name<AllocatorPlusV2Mask>
{ static const char *get() { return "AllocatorPlusV2Mask"; } };
template<> struct get_allocator_name<AllocatorPlusV2>
{ static const char *get() { return "AllocatorPlusV2"; } };
template<> struct get_allocator_name<AllocatorPlusV1>
{ static const char *get() { return "AllocatorPlusV1"; } };
//typedef int MyInt;
class MyInt
{
int int_;
public:
MyInt(int i = 0)
: int_(i)
{}
MyInt(const MyInt &other)
: int_(other.int_)
{}
MyInt & operator=(const MyInt &other)
{
int_ = other.int_;
return *this;
}
~MyInt()
{
int_ = 0;
}
};
namespace boost{
template<class T>
struct has_trivial_destructor_after_move;
template<>
struct has_trivial_destructor_after_move<MyInt>
{
static const bool value = true;
//static const bool value = false;
};
} //namespace boost{
void print_header()
{
std::cout << "Allocator" << ";" << "Iterations" << ";" << "Size" << ";"
<< "Capacity" << ";" << "push_back(ns)" << ";" << "Allocator calls" << ";"
<< "New allocations" << ";" << "Bwd expansions" << std::endl;
}
template<class Allocator>
void vector_test_template(unsigned int num_iterations, unsigned int num_elements, bool csv_output)
{
typedef typename Allocator::template rebind<MyInt>::other IntAllocator;
unsigned int numalloc = 0, numexpand = 0;
cpu_timer timer;
timer.resume();
unsigned int capacity = 0;
for(unsigned int r = 0; r != num_iterations; ++r){
bc::vector<MyInt, IntAllocator> v;
v.reset_alloc_stats();
void *first_mem = 0;
try{
first_mem = bc::dlmalloc_malloc(sizeof(MyInt)*num_elements*3/2);
v.push_back(MyInt(0));
bc::dlmalloc_free(first_mem);
for(unsigned int e = 0; e != num_elements; ++e){
v.push_back(MyInt(e));
}
numalloc += v.num_alloc;
numexpand += v.num_expand_bwd;
capacity = static_cast<unsigned int>(v.capacity());
}
catch(...){
bc::dlmalloc_free(first_mem);
throw;
}
}
assert(bc::dlmalloc_allocated_memory() == 0);
timer.stop();
nanosecond_type nseconds = timer.elapsed().wall;
if(csv_output){
std::cout << get_allocator_name<Allocator>::get()
<< ";"
<< num_iterations
<< ";"
<< num_elements
<< ";"
<< capacity
<< ";"
<< float(nseconds)/(num_iterations*num_elements)
<< ";"
<< (float(numalloc) + float(numexpand))/num_iterations
<< ";"
<< float(numalloc)/num_iterations
<< ";"
<< float(numexpand)/num_iterations
<< std::endl;
}
else{
std::cout << std::endl
<< "Allocator: " << get_allocator_name<Allocator>::get()
<< std::endl
<< " push_back ns: "
<< float(nseconds)/(num_iterations*num_elements)
<< std::endl
<< " capacity - alloc calls (new/expand): "
<< (unsigned int)capacity << " - "
<< (float(numalloc) + float(numexpand))/num_iterations
<< "(" << float(numalloc)/num_iterations << "/" << float(numexpand)/num_iterations << ")"
<< std::endl;
std::cout << '\n'
<< " ----------------------------------- "
<< std::endl;
}
bc::dlmalloc_trim(0);
}
int main(int argc, const char *argv[])
{
//#define SINGLE_TEST
#define SIMPLE_IT
#ifdef SINGLE_TEST
#ifdef NDEBUG
unsigned int numit [] = { 10 };
#else
unsigned int numit [] = { 10 };
#endif
unsigned int numele [] = { 10000 };
#elif defined(SIMPLE_IT)
unsigned int numit [] = { 3 };
unsigned int numele[] = { 10000 };
#else
#ifdef NDEBUG
unsigned int numit [] = { 2000, 20000, 200000, 2000000 };
#else
unsigned int numit [] = { 100, 1000, 10000, 100000 };
#endif
unsigned int numele [] = { 10000, 1000, 100, 10 };
#endif
bool csv_output = argc == 2 && (strcmp(argv[1], "--csv-output") == 0);
if(csv_output){
print_header();
for(unsigned int i = 0; i < sizeof(numele)/sizeof(numele[0]); ++i){
vector_test_template<StdAllocator>(numit[i], numele[i], csv_output);
}
for(unsigned int i = 0; i < sizeof(numele)/sizeof(numele[0]); ++i){
vector_test_template<AllocatorPlusV1>(numit[i], numele[i], csv_output);
}
for(unsigned int i = 0; i < sizeof(numele)/sizeof(numele[0]); ++i){
vector_test_template<AllocatorPlusV2Mask>(numit[i], numele[i], csv_output);
}
for(unsigned int i = 0; i < sizeof(numele)/sizeof(numele[0]); ++i){
vector_test_template<AllocatorPlusV2>(numit[i], numele[i], csv_output);
}
}
else{
for(unsigned int i = 0; i < sizeof(numele)/sizeof(numele[0]); ++i){
std::cout << "\n ----------------------------------- \n"
<< " Iterations/Elements: " << numit[i] << "/" << numele[i]
<< "\n ----------------------------------- \n";
vector_test_template<StdAllocator>(numit[i], numele[i], csv_output);
vector_test_template<AllocatorPlusV1>(numit[i], numele[i], csv_output);
vector_test_template<AllocatorPlusV2Mask>(numit[i], numele[i], csv_output);
vector_test_template<AllocatorPlusV2>(numit[i], numele[i], csv_output);
}
}
return 0;
}
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