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authorBjørn Erik Nilsen <bjorn.nilsen@nokia.com>2010-02-08 13:01:08 (GMT)
committerBjørn Erik Nilsen <bjorn.nilsen@nokia.com>2010-02-08 15:03:39 (GMT)
commit020830966e08239854ac207ec28663a80c6e0647 (patch)
tree38cec073cf32745aefac3803d1e0859f32d3c74d /tests/benchmarks/containers-sequential/main.cpp
parent43a9c48554579d76e1f1267fbd70f488f22fd408 (diff)
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Restructure tests/benchmarks directory.
We follow the same structure as used in the src directory. This makes it easier to navigate through the jungel, especially now that we are going to add functional tests etc.
Diffstat (limited to 'tests/benchmarks/containers-sequential/main.cpp')
-rw-r--r--tests/benchmarks/containers-sequential/main.cpp265
1 files changed, 0 insertions, 265 deletions
diff --git a/tests/benchmarks/containers-sequential/main.cpp b/tests/benchmarks/containers-sequential/main.cpp
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--- a/tests/benchmarks/containers-sequential/main.cpp
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-/****************************************************************************
-**
-** Copyright (C) 2010 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.
-**
-**
-**
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-// This file contains benchmarks for comparing QVector against std::vector
-
-#include <QtCore>
-#include <QVector>
-#include <vector>
-
-#include <qtest.h>
-
-template <typename T> // T is the item type
-class UseCases {
-public:
- virtual ~UseCases() {}
-
- // Use case: Insert \a size items into the vector.
- virtual void insert(int size) = 0;
-
- // Use case: Lookup \a size items from the vector.
- virtual void lookup(int size) = 0;
-};
-
-template <typename T>
-T * f(T *ts) // dummy function to prevent code from being optimized away by the compiler
-{
- return ts;
-}
-
-// This subclass implements the use cases using QVector as efficiently as possible.
-template <typename T>
-class UseCases_QVector : public UseCases<T>
-{
- void insert(int size)
- {
- QVector<T> v;
- T t;
- QBENCHMARK {
- for (int i = 0; i < size; ++i)
- v.append(t);
- }
- }
-
- void lookup(int size)
- {
- QVector<T> v;
-
- T t;
- for (int i = 0; i < size; ++i)
- v.append(t);
-
- T *ts = new T[size];
- QBENCHMARK {
- for (int i = 0; i < size; ++i)
- ts[i] = v.value(i);
- }
- f<T>(ts);
- delete[] ts;
- }
-};
-
-// This subclass implements the use cases using std::vector as efficiently as possible.
-template <typename T>
-class UseCases_stdvector : public UseCases<T>
-{
- void insert(int size)
- {
- std::vector<T> v;
- T t;
- QBENCHMARK {
- for (int i = 0; i < size; ++i)
- v.push_back(t);
- }
- }
-
- void lookup(int size)
- {
- std::vector<T> v;
-
- T t;
- for (int i = 0; i < size; ++i)
- v.push_back(t);
-
- T *ts = new T[size];
- QBENCHMARK {
- for (int i = 0; i < size; ++i)
- ts[i] = v[i];
- }
- f<T>(ts);
- delete[] ts;
- }
-};
-
-struct Large { // A "large" item type
- int x[1000];
-};
-
-// Symbian devices typically have limited memory
-#ifdef Q_OS_SYMBIAN
-# define LARGE_MAX_SIZE 2000
-#else
-# define LARGE_MAX_SIZE 20000
-#endif
-
-class tst_vector_vs_std : public QObject
-{
- Q_OBJECT
-public:
- tst_vector_vs_std()
- {
- useCases_QVector_int = new UseCases_QVector<int>;
- useCases_stdvector_int = new UseCases_stdvector<int>;
-
- useCases_QVector_Large = new UseCases_QVector<Large>;
- useCases_stdvector_Large = new UseCases_stdvector<Large>;
- }
-
-private:
- UseCases<int> *useCases_QVector_int;
- UseCases<int> *useCases_stdvector_int;
- UseCases<Large> *useCases_QVector_Large;
- UseCases<Large> *useCases_stdvector_Large;
-
-private slots:
- void insert_int_data();
- void insert_int();
- void insert_Large_data();
- void insert_Large();
- void lookup_int_data();
- void lookup_int();
- void lookup_Large_data();
- void lookup_Large();
-};
-
-void tst_vector_vs_std::insert_int_data()
-{
- QTest::addColumn<bool>("useStd");
- QTest::addColumn<int>("size");
-
- for (int size = 10; size < 20000; size += 100) {
- const QByteArray sizeString = QByteArray::number(size);
- QTest::newRow(("std::vector-int--" + sizeString).constData()) << true << size;
- QTest::newRow(("QVector-int--" + sizeString).constData()) << false << size;
- }
-}
-
-void tst_vector_vs_std::insert_int()
-{
- QFETCH(bool, useStd);
- QFETCH(int, size);
-
- if (useStd)
- useCases_stdvector_int->insert(size);
- else
- useCases_QVector_int->insert(size);
-}
-
-void tst_vector_vs_std::insert_Large_data()
-{
- QTest::addColumn<bool>("useStd");
- QTest::addColumn<int>("size");
-
- for (int size = 10; size < LARGE_MAX_SIZE; size += 100) {
- const QByteArray sizeString = QByteArray::number(size);
- QTest::newRow(("std::vector-Large--" + sizeString).constData()) << true << size;
- QTest::newRow(("QVector-Large--" + sizeString).constData()) << false << size;
- }
-}
-
-void tst_vector_vs_std::insert_Large()
-{
- QFETCH(bool, useStd);
- QFETCH(int, size);
-
- if (useStd)
- useCases_stdvector_Large->insert(size);
- else
- useCases_QVector_Large->insert(size);
-}
-
-void tst_vector_vs_std::lookup_int_data()
-{
- QTest::addColumn<bool>("useStd");
- QTest::addColumn<int>("size");
-
- for (int size = 10; size < 20000; size += 100) {
- const QByteArray sizeString = QByteArray::number(size);
- QTest::newRow(("std::vector-int--" + sizeString).constData()) << true << size;
- QTest::newRow(("QVector-int--" + sizeString).constData()) << false << size;
- }
-}
-
-void tst_vector_vs_std::lookup_int()
-{
- QFETCH(bool, useStd);
- QFETCH(int, size);
-
- if (useStd)
- useCases_stdvector_int->lookup(size);
- else
- useCases_QVector_int->lookup(size);
-}
-
-void tst_vector_vs_std::lookup_Large_data()
-{
- QTest::addColumn<bool>("useStd");
- QTest::addColumn<int>("size");
-
- for (int size = 10; size < LARGE_MAX_SIZE; size += 100) {
- const QByteArray sizeString = QByteArray::number(size);
- QTest::newRow(("std::vector-Large--" + sizeString).constData()) << true << size;
- QTest::newRow(("QVector-Large--" + sizeString).constData()) << false << size;
- }
-}
-
-void tst_vector_vs_std::lookup_Large()
-{
- QFETCH(bool, useStd);
- QFETCH(int, size);
-
- if (useStd)
- useCases_stdvector_Large->lookup(size);
- else
- useCases_QVector_Large->lookup(size);
-}
-
-QTEST_MAIN(tst_vector_vs_std)
-#include "main.moc"