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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)
#pragma warning (disable : 4267)
#pragma warning (disable : 4244)
#endif
#define BOOST_CONTAINER_VECTOR_ALLOC_STATS
#include <boost/container/allocator.hpp>
#include <vector>
#include <boost/container/vector.hpp>
#include <memory> //std::allocator
#include <iostream> //std::cout, std::endl
#include <cstring> //std::strcmp
#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> 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"; } };
#if defined(BOOST_CONTAINER_VECTOR_ALLOC_STATS)
//
// stats_traits;
//
template<template<class, class> class Vector>
struct stats_traits;
template<>
struct stats_traits<std::vector>
{
template<class T, class A>
static void reset_alloc_stats(std::vector<T, A> &)
{}
template<class T, class A>
static std::size_t get_num_alloc(std::vector<T, A> &)
{ return 0; }
template<class T, class A>
static std::size_t get_num_expand(std::vector<T, A> &)
{ return 0; }
};
template<>
struct stats_traits<bc::vector>
{
template<class T, class A>
static void reset_alloc_stats(bc::vector<T, A> &v)
{ v.reset_alloc_stats(); }
template<class T, class A>
static std::size_t get_num_alloc(bc::vector<T, A> &v)
{ return v.num_alloc; }
template<class T, class A>
static std::size_t get_num_expand(bc::vector<T, A> &v)
{ return v.num_expand_fwd; }
};
#endif //BOOST_CONTAINER_VECTOR_ALLOC_STATS
template<template<class, class> class Vector> struct get_container_name;
template<> struct get_container_name<std::vector>
{ static const char *get() { return "StdVector"; } };
template<> struct get_container_name<bc::vector>
{ static const char *get() { return "BoostContainerVector"; } };
class MyInt
{
int int_;
public:
explicit 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;
}
};
template<class Allocator, template <class, class> class Vector>
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;
#ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS
typedef stats_traits<Vector> stats_traits_t;
#endif
cpu_timer timer;
timer.resume();
unsigned int capacity = 0;
for(unsigned int r = 0; r != num_iterations; ++r){
Vector<MyInt, IntAllocator> v;
#ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS
stats_traits_t::reset_alloc_stats(v);
#endif
//v.reserve(num_elements);
//MyInt a[3];
/*
for(unsigned int e = 0; e != num_elements/3; ++e){
v.insert(v.end(), &a[0], &a[0]+3);
}*/
/*
for(unsigned int e = 0; e != num_elements/3; ++e){
v.insert(v.end(), 3, MyInt(e));
}*/
/*
for(unsigned int e = 0; e != num_elements/3; ++e){
v.insert(v.empty() ? v.end() : --v.end(), &a[0], &a[0]+3);
}*/
/*
for(unsigned int e = 0; e != num_elements/3; ++e){
v.insert(v.empty() ? v.end() : --v.end(), 3, MyInt(e));
}*/
/*
for(unsigned int e = 0; e != num_elements/3; ++e){
v.insert(v.size() >= 3 ? v.end()-3 : v.begin(), &a[0], &a[0]+3);
}*/
/*
for(unsigned int e = 0; e != num_elements/3; ++e){
v.insert(v.size() >= 3 ? v.end()-3 : v.begin(), 3, MyInt(e));
}*/
/*
for(unsigned int e = 0; e != num_elements; ++e){
v.insert(v.end(), MyInt(e));
}*/
/*
for(unsigned int e = 0; e != num_elements; ++e){
v.insert(v.empty() ? v.end() : --v.end(), MyInt(e));
}*/
for(unsigned int e = 0; e != num_elements; ++e){
v.push_back(MyInt(e));
}
#ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS
numalloc += stats_traits_t::get_num_alloc(v);
numexpand += stats_traits_t::get_num_expand(v);
#endif
capacity = static_cast<unsigned int>(v.capacity());
}
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::endl;
}
boost_cont_trim(0);
}
void print_header()
{
std::cout << "Allocator" << ";" << "Iterations" << ";" << "Size" << ";"
<< "Capacity" << ";" << "push_back(ns)" << ";" << "Allocator calls" << ";"
<< "New allocations" << ";" << "Fwd expansions" << std::endl;
}
int main(int argc, const char *argv[])
{
#define SINGLE_TEST
#ifndef SINGLE_TEST
#ifdef NDEBUG
unsigned int numit [] = { 10000, 100000, 1000000, 10000000 };
#else
unsigned int numit [] = { 100, 1000, 10000, 100000 };
#endif
unsigned int numele [] = { 10000, 1000, 100, 10 };
#else
#ifdef NDEBUG
std::size_t numit [] = { 10000 };
#else
std::size_t numit [] = { 100 };
#endif
std::size_t numele [] = { 10000 };
#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, bc::vector>(numit[i], numele[i], csv_output);
}
for(unsigned int i = 0; i < sizeof(numele)/sizeof(numele[0]); ++i){
vector_test_template<AllocatorPlusV1, bc::vector>(numit[i], numele[i], csv_output);
}
for(unsigned int i = 0; i < sizeof(numele)/sizeof(numele[0]); ++i){
vector_test_template<AllocatorPlusV2Mask, bc::vector>(numit[i], numele[i], csv_output);
}
for(unsigned int i = 0; i < sizeof(numele)/sizeof(numele[0]); ++i){
vector_test_template<AllocatorPlusV2, bc::vector>(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, std::vector>(numit[i], numele[i], csv_output);
vector_test_template<StdAllocator, bc::vector>(numit[i], numele[i], csv_output);
vector_test_template<AllocatorPlusV1, bc::vector>(numit[i], numele[i], csv_output);
vector_test_template<AllocatorPlusV2Mask, bc::vector>(numit[i], numele[i], csv_output);
vector_test_template<AllocatorPlusV2, bc::vector>(numit[i], numele[i], csv_output);
}
}
return 0;
}
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