diff options
Diffstat (limited to 'tests/benchmarks/gui/kernel/qguimetatype/tst_qguimetatype.cpp')
-rw-r--r-- | tests/benchmarks/gui/kernel/qguimetatype/tst_qguimetatype.cpp | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/tests/benchmarks/gui/kernel/qguimetatype/tst_qguimetatype.cpp b/tests/benchmarks/gui/kernel/qguimetatype/tst_qguimetatype.cpp new file mode 100644 index 0000000000..fd5132c02f --- /dev/null +++ b/tests/benchmarks/gui/kernel/qguimetatype/tst_qguimetatype.cpp @@ -0,0 +1,113 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the test suite of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <qtest.h> +#include <QtCore/qmetatype.h> + +class tst_QGuiMetaType : public QObject +{ + Q_OBJECT + +public: + tst_QGuiMetaType(); + virtual ~tst_QGuiMetaType(); + +private slots: + void constructGuiType_data(); + void constructGuiType(); + void constructGuiTypeCopy_data(); + void constructGuiTypeCopy(); +}; + +tst_QGuiMetaType::tst_QGuiMetaType() +{ +} + +tst_QGuiMetaType::~tst_QGuiMetaType() +{ +} + +void tst_QGuiMetaType::constructGuiType_data() +{ + QTest::addColumn<int>("typeId"); + for (int i = QMetaType::FirstGuiType; i <= QMetaType::LastGuiType; ++i) + QTest::newRow(QMetaType::typeName(i)) << i; +} + +// Tests how fast QMetaType can default-construct and destroy a Qt GUI +// type. The purpose of this benchmark is to measure the overhead of +// using type id-based creation compared to creating the type directly +// (i.e. "T *t = new T(); delete t;"). +void tst_QGuiMetaType::constructGuiType() +{ + QFETCH(int, typeId); + QBENCHMARK { + for (int i = 0; i < 100000; ++i) { + void *data = QMetaType::construct(typeId, (void *)0); + QMetaType::destroy(typeId, data); + } + } +} + +void tst_QGuiMetaType::constructGuiTypeCopy_data() +{ + constructGuiType_data(); +} + +// Tests how fast QMetaType can copy-construct and destroy a Qt GUI +// type. The purpose of this benchmark is to measure the overhead of +// using type id-based creation compared to creating the type directly +// (i.e. "T *t = new T(other); delete t;"). +void tst_QGuiMetaType::constructGuiTypeCopy() +{ + QFETCH(int, typeId); + QVariant other(typeId, (void *)0); + const void *copy = other.constData(); + QBENCHMARK { + for (int i = 0; i < 100000; ++i) { + void *data = QMetaType::construct(typeId, copy); + QMetaType::destroy(typeId, data); + } + } +} + +QTEST_MAIN(tst_QGuiMetaType) +#include "tst_qguimetatype.moc" |