forked from boostorg/container
- Modified relational operators to be friend inline definitions. This allows compilation checking when instantiating classes, avoids predeclarations and results in less verbose code.
- First to make associative containers' tree implementation configurable.
This commit is contained in:
Ion Gaztañaga
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//////////////////////////////////////////////////////////////////////////////
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//
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// (C) Copyright Ion Gaztanaga 2007-2013. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/container for documentation.
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//
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//////////////////////////////////////////////////////////////////////////////
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#ifdef _MSC_VER
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#pragma warning (disable : 4512)
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#endif
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#include <boost/container/allocator.hpp>
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#define BOOST_CONTAINER_VECTOR_ALLOC_STATS
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#include <boost/container/vector.hpp>
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#include <memory> //std::allocator
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#include <iostream> //std::cout, std::endl
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#include <boost/timer/timer.hpp>
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using boost::timer::cpu_timer;
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using boost::timer::cpu_times;
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using boost::timer::nanosecond_type;
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namespace bc = boost::container;
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typedef std::allocator<int> StdAllocator;
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typedef bc::allocator<int, 2, bc::expand_bwd | bc::expand_fwd> AllocatorPlusV2Mask;
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typedef bc::allocator<int, 2, bc::expand_fwd> AllocatorPlusV2;
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typedef bc::allocator<int, 1> AllocatorPlusV1;
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template<class Allocator> struct get_allocator_name;
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template<> struct get_allocator_name<StdAllocator>
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{ static const char *get() { return "StdAllocator"; } };
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template<> struct get_allocator_name<AllocatorPlusV2Mask>
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{ static const char *get() { return "AllocatorPlusV2Mask"; } };
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template<> struct get_allocator_name<AllocatorPlusV2>
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{ static const char *get() { return "AllocatorPlusV2"; } };
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template<> struct get_allocator_name<AllocatorPlusV1>
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{ static const char *get() { return "AllocatorPlusV1"; } };
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//typedef int MyInt;
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class MyInt
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{
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int int_;
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public:
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MyInt(int i = 0)
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: int_(i)
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{}
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MyInt(const MyInt &other)
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: int_(other.int_)
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{}
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MyInt & operator=(const MyInt &other)
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{
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int_ = other.int_;
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return *this;
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}
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~MyInt()
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{
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int_ = 0;
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}
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};
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namespace boost{
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template<>
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struct has_trivial_destructor_after_move<MyInt>
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{
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static const bool value = true;
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//static const bool value = false;
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};
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} //namespace boost{
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void print_header()
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{
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std::cout << "Allocator" << ";" << "Iterations" << ";" << "Size" << ";"
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<< "Capacity" << ";" << "push_back(ns)" << ";" << "Allocator calls" << ";"
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<< "New allocations" << ";" << "Bwd expansions" << std::endl;
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}
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template<class Allocator>
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void vector_test_template(unsigned int num_iterations, unsigned int num_elements, bool csv_output)
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{
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typedef typename Allocator::template rebind<MyInt>::other IntAllocator;
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unsigned int numalloc = 0, numexpand = 0;
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cpu_timer timer;
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timer.resume();
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unsigned int capacity = 0;
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for(unsigned int r = 0; r != num_iterations; ++r){
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bc::vector<MyInt, IntAllocator> v;
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v.reset_alloc_stats();
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void *first_mem = 0;
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try{
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first_mem = boost_cont_malloc(sizeof(MyInt)*num_elements*3/2);
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v.push_back(MyInt(0));
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boost_cont_free(first_mem);
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for(unsigned int e = 0; e != num_elements; ++e){
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v.push_back(MyInt(e));
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}
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numalloc += v.num_alloc;
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numexpand += v.num_expand_bwd;
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capacity = static_cast<unsigned int>(v.capacity());
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}
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catch(...){
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boost_cont_free(first_mem);
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throw;
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}
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}
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assert(boost_cont_allocated_memory() == 0);
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timer.stop();
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nanosecond_type nseconds = timer.elapsed().wall;
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if(csv_output){
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std::cout << get_allocator_name<Allocator>::get()
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<< ";"
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<< num_iterations
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<< ";"
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<< num_elements
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<< ";"
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<< capacity
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<< ";"
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<< float(nseconds)/(num_iterations*num_elements)
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<< ";"
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<< (float(numalloc) + float(numexpand))/num_iterations
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<< ";"
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<< float(numalloc)/num_iterations
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<< ";"
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<< float(numexpand)/num_iterations
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<< std::endl;
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}
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else{
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std::cout << std::endl
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<< "Allocator: " << get_allocator_name<Allocator>::get()
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<< std::endl
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<< " push_back ns: "
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<< float(nseconds)/(num_iterations*num_elements)
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<< std::endl
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<< " capacity - alloc calls (new/expand): "
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<< (unsigned int)capacity << " - "
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<< (float(numalloc) + float(numexpand))/num_iterations
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<< "(" << float(numalloc)/num_iterations << "/" << float(numexpand)/num_iterations << ")"
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<< std::endl;
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std::cout << '\n'
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<< " ----------------------------------- "
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<< std::endl;
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}
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boost_cont_trim(0);
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}
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int main(int argc, const char *argv[])
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{
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#define SINGLE_TEST
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#ifndef SINGLE_TEST
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#ifdef NDEBUG
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unsigned int numit [] = { 20000, 200000, 2000000, 20000000 };
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#else
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unsigned int numit [] = { 100, 1000, 10000, 100000 };
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#endif
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unsigned int numele [] = { 10000, 1000, 100, 10 };
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#else
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#ifdef NDEBUG
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unsigned int numit [] = { 20000 };
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#else
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unsigned int numit [] = { 100 };
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#endif
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unsigned int numele [] = { 10000 };
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#endif
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bool csv_output = argc == 2 && (strcmp(argv[1], "--csv-output") == 0);
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if(csv_output){
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print_header();
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for(unsigned int i = 0; i < sizeof(numele)/sizeof(numele[0]); ++i){
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vector_test_template<StdAllocator>(numit[i], numele[i], csv_output);
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}
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for(unsigned int i = 0; i < sizeof(numele)/sizeof(numele[0]); ++i){
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vector_test_template<AllocatorPlusV1>(numit[i], numele[i], csv_output);
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}
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for(unsigned int i = 0; i < sizeof(numele)/sizeof(numele[0]); ++i){
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vector_test_template<AllocatorPlusV2Mask>(numit[i], numele[i], csv_output);
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}
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for(unsigned int i = 0; i < sizeof(numele)/sizeof(numele[0]); ++i){
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vector_test_template<AllocatorPlusV2>(numit[i], numele[i], csv_output);
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}
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}
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else{
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for(unsigned int i = 0; i < sizeof(numele)/sizeof(numele[0]); ++i){
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std::cout << "\n ----------------------------------- \n"
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<< " Iterations/Elements: " << numit[i] << "/" << numele[i]
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<< "\n ----------------------------------- \n";
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vector_test_template<StdAllocator>(numit[i], numele[i], csv_output);
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vector_test_template<AllocatorPlusV1>(numit[i], numele[i], csv_output);
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vector_test_template<AllocatorPlusV2Mask>(numit[i], numele[i], csv_output);
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vector_test_template<AllocatorPlusV2>(numit[i], numele[i], csv_output);
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}
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}
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return 0;
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}
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