1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
|
//////////////////////////////////////////////////////////////////////////////
//
// (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/move/detail/nsec_clock.hpp>
using boost::move_detail::cpu_timer;
using boost::move_detail::cpu_times;
using boost::move_detail::nanosecond_type;
//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{
namespace bc = boost::container;
typedef std::allocator<MyInt> StdAllocator;
typedef bc::allocator<MyInt, 2, bc::expand_bwd | bc::expand_fwd> AllocatorPlusV2Mask;
typedef bc::allocator<MyInt, 2, bc::expand_fwd> AllocatorPlusV2;
typedef bc::allocator<MyInt, 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"; } };
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(std::size_t num_iterations, std::size_t num_elements, bool csv_output)
{
typedef Allocator IntAllocator;
std::size_t numalloc = 0, numexpand = 0;
cpu_timer timer;
timer.resume();
std::size_t capacity = 0;
for(std::size_t r = 0; r != num_iterations; ++r){
bc::vector<MyInt, IntAllocator> v;
v.reset_alloc_stats();
void *first_mem = 0;
BOOST_CONTAINER_TRY{
first_mem = bc::dlmalloc_malloc(sizeof(MyInt)*num_elements*3/2);
v.push_back(MyInt(0));
bc::dlmalloc_free(first_mem);
for(std::size_t e = 0; e != num_elements; ++e){
v.push_back(MyInt((int)e));
}
numalloc += v.num_alloc;
numexpand += v.num_expand_bwd;
capacity = static_cast<std::size_t>(v.capacity());
}
BOOST_CONTAINER_CATCH(...){
bc::dlmalloc_free(first_mem);
BOOST_CONTAINER_RETHROW;
}
BOOST_CONTAINER_CATCH_END
}
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)/float(num_iterations*num_elements)
<< ";"
<< (float(numalloc) + float(numexpand))/float(num_iterations)
<< ";"
<< float(numalloc)/float(num_iterations)
<< ";"
<< float(numexpand)/float(num_iterations)
<< std::endl;
}
else{
std::cout << std::endl
<< "Allocator: " << get_allocator_name<Allocator>::get()
<< std::endl
<< " push_back ns: "
<< float(nseconds)/float(num_iterations*num_elements)
<< std::endl
<< " capacity - alloc calls (new/expand): "
<< (std::size_t)capacity << " - "
<< (float(numalloc) + float(numexpand))/float(num_iterations)
<< "(" << float(numalloc)/float(num_iterations) << "/" << float(numexpand)/float(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
std::size_t numit [] = { 10 };
#else
std::size_t numit [] = { 10 };
#endif
std::size_t numele [] = { 10000 };
#elif defined(SIMPLE_IT)
std::size_t numit [] = { 3 };
std::size_t numele[] = { 10000 };
#else
#ifdef NDEBUG
std::size_t numit [] = { 2000, 20000, 200000, 2000000 };
#else
std::size_t numit [] = { 100, 1000, 10000, 100000 };
#endif
std::size_t numele [] = { 10000, 1000, 100, 10 };
#endif
bool csv_output = argc == 2 && (strcmp(argv[1], "--csv-output") == 0);
if(csv_output){
print_header();
for(std::size_t i = 0; i < sizeof(numele)/sizeof(numele[0]); ++i){
vector_test_template<StdAllocator>(numit[i], numele[i], csv_output);
}
for(std::size_t i = 0; i < sizeof(numele)/sizeof(numele[0]); ++i){
vector_test_template<AllocatorPlusV1>(numit[i], numele[i], csv_output);
}
for(std::size_t i = 0; i < sizeof(numele)/sizeof(numele[0]); ++i){
vector_test_template<AllocatorPlusV2Mask>(numit[i], numele[i], csv_output);
}
for(std::size_t i = 0; i < sizeof(numele)/sizeof(numele[0]); ++i){
vector_test_template<AllocatorPlusV2>(numit[i], numele[i], csv_output);
}
}
else{
for(std::size_t 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;
}
|
