| /**************************************************************************** |
| ** |
| ** 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" |