forked from moya-lang/Allocator
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Measure.cpp
155 lines (120 loc) · 4.57 KB
/
Measure.cpp
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
#include <iostream>
#include <chrono>
#include <random>
#include <set>
#include <map>
#include <list>
#include <forward_list>
#include "Allocator.h"
const size_t growSize = 1024;
const size_t numberOfIterations = 1024;
const size_t randomRange = 1024;
template <typename Container>
class PerformanceTest
{
virtual void testIteration(size_t newSize) = 0;
protected:
Container container;
std::default_random_engine randomNumberGenerator;
std::uniform_int_distribution<size_t> randomNumberDistribution;
public:
PerformanceTest() :
randomNumberGenerator(0),
randomNumberDistribution(0, randomRange)
{
}
virtual ~PerformanceTest()
{
}
double run()
{
auto from = std::chrono::high_resolution_clock::now();
for (size_t i = 0; i < numberOfIterations; i++)
testIteration(randomNumberDistribution(randomNumberGenerator));
auto to = std::chrono::high_resolution_clock::now();
return std::chrono::duration_cast<std::chrono::duration<double>>(to - from).count();
}
};
template <typename Container>
class PushFrontTest : public PerformanceTest<Container>
{
virtual void testIteration(size_t newSize)
{
size_t size = 0;
while (size < newSize)
this->container.push_front(size++);
for (; size > newSize; size--)
this->container.pop_front();
}
};
template <typename Container>
class PushBackTest : public PerformanceTest<Container>
{
virtual void testIteration(size_t newSize)
{
size_t size = 0;
while (size < newSize)
this->container.push_back(size++);
for (; size > newSize; size--)
this->container.pop_back();
}
};
template <typename Container>
class MapTest : public PerformanceTest<Container>
{
virtual void testIteration(size_t newSize)
{
size_t size = 0;
for (; size < newSize; size++)
this->container.insert(typename Container::value_type(size, size));
while (size > newSize)
this->container.erase(--size);
}
};
template <typename Container>
class SetTest : public PerformanceTest<Container>
{
virtual void testIteration(size_t newSize)
{
size_t size = 0;
while (size < newSize)
this->container.insert(size++);
while (size > newSize)
this->container.erase(--size);
}
};
template <typename StlAllocatorContainer, typename MoyaAllocatorContainer>
void printTestStatus(const char *name, StlAllocatorContainer &stlContainer, MoyaAllocatorContainer &fastContainer)
{
double stlRunTime = stlContainer.run();
double moyaRunTime = fastContainer.run();
std::cout << std::fixed;
std::cout << name << " - Default STL Allocator : " << stlRunTime << " seconds." << std::endl;
std::cout << name << " - Memory Pool Allocator : " << moyaRunTime << " seconds." << std::endl;
std::cout << name << " - Gain : x" << stlRunTime / moyaRunTime << "." << std::endl;
std::cout << std::endl;
}
int main()
{
typedef size_t DataType;
typedef Moya::Allocator<DataType, growSize> MemoryPoolAllocator;
typedef Moya::Allocator<std::map<DataType, DataType>::value_type, growSize> MapMemoryPoolAllocator;
std::cout << "Allocator performance measurement example" << std::endl;
std::cout << "Version: 1.0" << std::endl << std::endl;
PushFrontTest<std::forward_list<DataType>> pushFrontForwardListTestStl;
PushFrontTest<std::forward_list<DataType, MemoryPoolAllocator>> pushFrontForwardListTestFast;
printTestStatus("ForwardList PushFront", pushFrontForwardListTestStl, pushFrontForwardListTestFast);
PushFrontTest<std::list<DataType>> pushFrontListTestStl;
PushFrontTest<std::list<DataType, MemoryPoolAllocator>> pushFrontListTestFast;
printTestStatus("List PushFront", pushFrontListTestStl, pushFrontListTestFast);
PushBackTest<std::list<DataType>> pushBackListTestStl;
PushBackTest<std::list<DataType, MemoryPoolAllocator>> pushBackListTestFast;
printTestStatus("List PushBack", pushBackListTestStl, pushBackListTestFast);
MapTest<std::map<DataType, DataType, std::less<DataType>>> mapTestStl;
MapTest<std::map<DataType, DataType, std::less<DataType>, MapMemoryPoolAllocator>> mapTestFast;
printTestStatus("Map", mapTestStl, mapTestFast);
SetTest<std::set<DataType, std::less<DataType>>> setTestStl;
SetTest<std::set<DataType, std::less<DataType>, MemoryPoolAllocator>> setTestFast;
printTestStatus("Set", setTestStl, setTestFast);
return 0;
}