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
|
// **********************************************************************
//
// Copyright (c) 2003-2009 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#include <IceUtil/UUID.h>
#include <IceUtil/Random.h>
#include <IceUtil/Time.h>
#include <IceUtil/Thread.h>
#include <IceUtil/StaticMutex.h>
#include <TestCommon.h>
#include <set>
#include <vector>
using namespace IceUtil;
using namespace std;
static StaticMutex staticMutex = ICE_STATIC_MUTEX_INITIALIZER;
inline void usage(const char* myName)
{
cerr << "Usage: " << myName << " [number of UUIDs to generate] [number of threads]" << endl;
}
template<typename T, typename GenerateFunc> class InsertThread : public Thread
{
public:
typedef set<T> ItemSet;
InsertThread(int threadId, ItemSet& itemSet, GenerateFunc func, long howMany, bool verbose)
: _threadId(threadId), _itemSet(itemSet), _func(func), _howMany(howMany), _verbose(verbose)
{
}
void run()
{
for(long i = 0; i < _howMany; i++)
{
T item = _func();
StaticMutex::Lock lock(staticMutex);
#if defined(_MSC_VER) && (_MSC_VER < 1300)
pair<ItemSet::iterator, bool> ok = _itemSet.insert(item);
#else
pair<typename ItemSet::iterator, bool> ok = _itemSet.insert(item);
#endif
if(!ok.second)
{
cerr << "******* iteration " << i << endl;
cerr << "******* Duplicate item: " << *ok.first << endl;
}
test(ok.second);
if(_verbose && i > 0 && (i % 100000 == 0))
{
cout << "Thread " << _threadId << ": generated " << i << " UUIDs." << endl;
}
}
}
private:
int _threadId;
ItemSet& _itemSet;
GenerateFunc _func;
long _howMany;
bool _verbose;
};
struct GenerateUUID
{
string
operator()()
{
return generateUUID();
}
};
struct GenerateRandomString
{
string
operator()()
{
string s;
s.resize(20);
char buf[20];
IceUtilInternal::generateRandom(buf, static_cast<int>(sizeof(buf)));
for(unsigned int i = 0; i < sizeof(buf); ++i)
{
s[i] = 33 + buf[i] % (127-33); // We use ASCII 33-126 (from ! to ~, w/o space).
}
return s;
}
};
IceUtil::StaticMutex lock;
struct GenerateRandomInt
{
public:
int
operator()()
{
return IceUtilInternal::random();
}
};
template<typename T, typename GenerateFunc> void
runTest(int threadCount, GenerateFunc func, long howMany, bool verbose, string name)
{
cout << "Generating " << howMany << " " << name << "s using " << threadCount << " thread";
if(threadCount > 1)
{
cout << "s";
}
cout << "... ";
if(verbose)
{
cout << endl;
}
else
{
cout << flush;
}
set<T> itemSet;
vector<ThreadControl> threads;
Time start = Time::now();
for(int i = 0; i < threadCount; i++)
{
ThreadPtr t = new InsertThread<T, GenerateFunc>(i, itemSet, func, howMany / threadCount, verbose);
threads.push_back(t->start());
}
for(vector<ThreadControl>::iterator p = threads.begin(); p != threads.end(); ++p)
{
p->join();
}
Time finish = Time::now();
cout << "ok" << endl;
if(verbose)
{
cout << "Each " << name << " took an average of "
<< (double) ((finish - start).toMicroSeconds()) / howMany
<< " micro seconds to generate and insert into a set."
<< endl;
}
}
int main(int argc, char* argv[])
{
long howMany = 300000;
int threadCount = 3;
bool verbose = false;
if(argc > 3)
{
usage(argv[0]);
return EXIT_FAILURE;
}
else if(argc == 3)
{
howMany = atol(argv[1]);
if (howMany == 0)
{
usage(argv[0]);
return EXIT_FAILURE;
}
threadCount = atoi(argv[2]);
if(threadCount <= 0)
{
usage(argv[0]);
return EXIT_FAILURE;
}
verbose = true;
}
else if(argc == 2)
{
howMany = atol(argv[1]);
if (howMany == 0)
{
usage(argv[0]);
return EXIT_FAILURE;
}
}
runTest<string, GenerateUUID>(threadCount, GenerateUUID(), howMany, verbose, "UUID");
runTest<string, GenerateRandomString>(threadCount, GenerateRandomString(), howMany, verbose, "string");
return EXIT_SUCCESS;
}
|
