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
|
#include <QtTest>
#include "calendar_generated.h"
#include <iostream>
#include <fstream>
#include <QDebug>
#include <QString>
#include <QTime>
#include "common/storage.h"
using namespace Calendar;
using namespace flatbuffers;
static std::string createEvent()
{
static const size_t attachmentSize = 1024*2; // 2KB
static uint8_t rawData[attachmentSize];
static FlatBufferBuilder fbb;
fbb.Clear();
{
auto summary = fbb.CreateString("summary");
auto data = fbb.CreateUninitializedVector<uint8_t>(attachmentSize);
//auto data = fbb.CreateVector(rawData, attachmentSize);
Calendar::EventBuilder eventBuilder(fbb);
eventBuilder.add_summary(summary);
eventBuilder.add_attachment(data);
auto eventLocation = eventBuilder.Finish();
Calendar::FinishEventBuffer(fbb, eventLocation);
memcpy((void*)Calendar::GetEvent(fbb.GetBufferPointer())->attachment()->Data(), rawData, attachmentSize);
}
return std::string(reinterpret_cast<const char *>(fbb.GetBufferPointer()), fbb.GetSize());
}
// static void readEvent(const std::string &data)
// {
// auto readEvent = GetEvent(data.c_str());
// std::cout << readEvent->summary()->c_str() << std::endl;
// }
class StorageBenchmark : public QObject
{
Q_OBJECT
private:
//This should point to a directory on disk and not a ramdisk (since we're measuring performance)
QString testDataPath;
QString dbName;
QString filePath;
const int count = 50000;
private Q_SLOTS:
void initTestCase()
{
testDataPath = "./testdb";
dbName = "test";
filePath = testDataPath + "buffer.fb";
}
void cleanupTestCase()
{
Storage store(testDataPath, dbName);
store.removeFromDisk();
}
void testWriteRead_data()
{
QTest::addColumn<bool>("useDb");
QTest::addColumn<int>("count");
QTest::newRow("db, 50k") << true << count;
QTest::newRow("file, 50k") << false << count;
}
void testWriteRead()
{
QFETCH(bool, useDb);
QFETCH(int, count);
QScopedPointer<Storage> store;
if (useDb) {
store.reset(new Storage(testDataPath, dbName, Storage::ReadWrite));
}
std::ofstream myfile;
myfile.open(filePath.toStdString());
const char *keyPrefix = "key";
QTime time;
time.start();
{
auto event = createEvent();
for (int i = 0; i < count; i++) {
if (store) {
if (i % 10000 == 0) {
if (i > 0) {
store->commitTransaction();
}
store->startTransaction();
}
store->write(keyPrefix + std::to_string(i), event);
} else {
myfile << event;
}
}
if (store) {
store->commitTransaction();
} else {
myfile.close();
}
}
qreal writeDuration = time.restart();
qreal opsPerMs = count / writeDuration;
qDebug() << "Writing took[ms]: " << writeDuration << "->" << opsPerMs << "ops/ms";
{
for (int i = 0; i < count; i++) {
if (store) {
store->read(keyPrefix + std::to_string(i), [](std::string value) -> bool { return true; });
}
}
}
qreal readDuration = time.restart();
opsPerMs = count / readDuration;
if (store) {
qDebug() << "Reading took[ms]: " << readDuration << "->" << opsPerMs << "ops/ms";
} else {
qDebug() << "File reading is not implemented.";
}
}
void testScan()
{
QScopedPointer<Storage> store(new Storage(testDataPath, dbName, Storage::ReadOnly));
QBENCHMARK {
int hit = 0;
store->scan("", [&](void *keyValue, int keySize, void *dataValue, int dataSize) -> bool {
if (std::string(static_cast<char*>(keyValue), keySize) == "key10000") {
qDebug() << "hit";
hit++;
}
return true;
});
QCOMPARE(hit, 1);
}
}
void testKeyLookup()
{
QScopedPointer<Storage> store(new Storage(testDataPath, dbName, Storage::ReadOnly));
QBENCHMARK {
int hit = 0;
store->scan("key40000", [&](void *keyValue, int keySize, void *dataValue, int dataSize) -> bool {
if (std::string(static_cast<char*>(keyValue), keySize) == "foo") {
qDebug() << "hit";
}
hit++;
return true;
});
QCOMPARE(hit, 1);
}
}
void testBufferCreation()
{
QTime time;
time.start();
for (int i = 0; i < count; i++) {
auto event = createEvent();
}
qreal bufferDuration = time.restart();
qreal opsPerMs = count / bufferDuration;
qDebug() << "Creating buffers took[ms]: " << bufferDuration << "->" << opsPerMs << "ops/ms";;
}
void testSizes()
{
Storage store(testDataPath, dbName);
qDebug() << "Database size [kb]: " << store.diskUsage()/1024;
QFileInfo fileInfo(filePath);
qDebug() << "File size [kb]: " << fileInfo.size()/1024;
}
};
QTEST_MAIN(StorageBenchmark)
#include "storagebenchmark.moc"
|
