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/****************************************************************************
**
** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QObject>
#include <QtTest/QtTest>
#include <Qt3DCore/private/qcircularbuffer_p.h>
using namespace Qt3DCore;
class tst_QCircularBuffer : public QObject
{
Q_OBJECT
private Q_SLOTS:
void benchmarkAppend();
void benchmarkAt();
};
void tst_QCircularBuffer::benchmarkAppend()
{
QCircularBuffer<float> c;
c.setCapacity(100000);
volatile int confuseTheOptimizer = 90000;
QBENCHMARK {
const int count = confuseTheOptimizer;
for (int i = 0; i < count; i++) {
c.append(float(i));
}
}
const int count = confuseTheOptimizer;
volatile float f;
for (int i = 0; i < count; i++) {
f = c.at(i);
}
Q_UNUSED(f);
}
void tst_QCircularBuffer::benchmarkAt()
{
QCircularBuffer<float> c;
c.setCapacity(20000);
volatile int confuseTheOptimizer = 90000;
const int count = confuseTheOptimizer;
for (int i = 0; i < count; i++) {
c.append(float(i));
}
QCOMPARE(c.isLinearised(), false);
QBENCHMARK {
const int count = c.size();
volatile float f;
for (int i = 0; i < count; i++) {
f = c.at(i);
}
Q_UNUSED(f);
}
}
QTEST_APPLESS_MAIN(tst_QCircularBuffer)
#include "tst_bench_qcircularbuffer.moc"
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