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// Copyright (C) 2020 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include <QDebug>
#include <qtest.h>
#include <QTest>
#include <QTestEventLoop>
#include <QtNetwork/qnetworkreply.h>
#include <QtNetwork/qnetworkrequest.h>
#include <QtNetwork/qnetworkaccessmanager.h>
#include <QtCore/QTemporaryFile>
#include <QtCore/QElapsedTimer>
#include <QtCore/QFile>
class qfile_vs_qnetworkaccessmanager : public QObject
{
Q_OBJECT
protected:
void qnamFileRead_iteration(QNetworkAccessManager &manager, QNetworkRequest &request);
void qnamImmediateFileRead_iteration(QNetworkAccessManager &manager, QNetworkRequest &request);
void qfileFileRead_iteration();
static const int iterations = 10;
private slots:
void qnamFileRead();
void qnamImmediateFileRead();
void qfileFileRead();
void initTestCase();
void cleanupTestCase();
public:
qint64 size;
QTemporaryFile testFile;
qfile_vs_qnetworkaccessmanager() : QObject(), size(0) {};
};
void qfile_vs_qnetworkaccessmanager::initTestCase()
{
testFile.open();
QByteArray qba(1*1024*1024, 'x'); // 1 MB
for (int i = 0; i < 100; i++) {
testFile.write(qba);
testFile.flush();
size += qba.size();
} // 100 MB or 10 MB
testFile.reset();
}
void qfile_vs_qnetworkaccessmanager::cleanupTestCase()
{
}
void qfile_vs_qnetworkaccessmanager::qnamFileRead_iteration(QNetworkAccessManager &manager, QNetworkRequest &request)
{
QNetworkReply* reply = manager.get(request);
connect(reply, SIGNAL(finished()), &QTestEventLoop::instance(), SLOT(exitLoop()), Qt::QueuedConnection);
QTestEventLoop::instance().enterLoop(10);
QVERIFY(!QTestEventLoop::instance().timeout());
QByteArray qba = reply->readAll();
delete reply;
}
void qfile_vs_qnetworkaccessmanager::qnamFileRead()
{
QNetworkAccessManager manager;
QElapsedTimer t;
QNetworkRequest request(QUrl::fromLocalFile(testFile.fileName()));
// do 3 dry runs for cache warmup
qnamFileRead_iteration(manager, request);
qnamFileRead_iteration(manager, request);
qnamFileRead_iteration(manager, request);
t.start();
// 10 real runs
QBENCHMARK_ONCE {
for (int i = 0; i < iterations; i++) {
qnamFileRead_iteration(manager, request);
}
}
qint64 elapsed = t.elapsed();
qDebug() << Qt::endl << "Finished!";
qDebug() << "Bytes:" << size;
qDebug() << "Speed:" << (qreal(size*iterations) / 1024.0) / (qreal(elapsed) / 1000.0) << "KB/sec";
}
void qfile_vs_qnetworkaccessmanager::qnamImmediateFileRead_iteration(QNetworkAccessManager &manager, QNetworkRequest &request)
{
QNetworkReply* reply = manager.get(request);
QVERIFY(reply->isFinished()); // should be like that!
QByteArray qba = reply->readAll();
delete reply;
}
void qfile_vs_qnetworkaccessmanager::qnamImmediateFileRead()
{
QNetworkAccessManager manager;
QElapsedTimer t;
QNetworkRequest request(QUrl::fromLocalFile(testFile.fileName()));
// do 3 dry runs for cache warmup
qnamImmediateFileRead_iteration(manager, request);
qnamImmediateFileRead_iteration(manager, request);
qnamImmediateFileRead_iteration(manager, request);
t.start();
// 10 real runs
QBENCHMARK_ONCE {
for (int i = 0; i < iterations; i++) {
qnamImmediateFileRead_iteration(manager, request);
}
}
qint64 elapsed = t.elapsed();
qDebug() << Qt::endl << "Finished!";
qDebug() << "Bytes:" << size;
qDebug() << "Speed:" << (qreal(size*iterations) / 1024.0) / (qreal(elapsed) / 1000.0) << "KB/sec";
}
void qfile_vs_qnetworkaccessmanager::qfileFileRead_iteration()
{
testFile.reset();
QByteArray qba = testFile.readAll();
}
void qfile_vs_qnetworkaccessmanager::qfileFileRead()
{
QElapsedTimer t;
// do 3 dry runs for cache warmup
qfileFileRead_iteration();
qfileFileRead_iteration();
qfileFileRead_iteration();
t.start();
// 10 real runs
QBENCHMARK_ONCE {
for (int i = 0; i < iterations; i++) {
qfileFileRead_iteration();
}
}
qint64 elapsed = t.elapsed();
qDebug() << Qt::endl << "Finished!";
qDebug() << "Bytes:" << size;
qDebug() << "Speed:" << (qreal(size*iterations) / 1024.0) / (qreal(elapsed) / 1000.0) << "KB/sec";
}
QTEST_MAIN(qfile_vs_qnetworkaccessmanager)
#include "main.moc"
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