diff options
Diffstat (limited to 'tests/benchmarks/corelib/io/qdir/10000/bench_qdir_10000.cpp')
| -rw-r--r-- | tests/benchmarks/corelib/io/qdir/10000/bench_qdir_10000.cpp | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/tests/benchmarks/corelib/io/qdir/10000/bench_qdir_10000.cpp b/tests/benchmarks/corelib/io/qdir/10000/bench_qdir_10000.cpp new file mode 100644 index 0000000000..2ed3183cca --- /dev/null +++ b/tests/benchmarks/corelib/io/qdir/10000/bench_qdir_10000.cpp @@ -0,0 +1,198 @@ +/**************************************************************************** +** +** 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 module 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 <QtTest/QtTest> + +#ifdef Q_OS_WIN +# include <windows.h> +#else +# include <sys/stat.h> +# include <sys/types.h> +# include <dirent.h> +# include <unistd.h> +#endif + +class bench_QDir_10000 : public QObject{ + Q_OBJECT +public slots: + void initTestCase() { + QDir testdir = QDir::tempPath(); + + const QString subfolder_name = QLatin1String("test_speed"); + QVERIFY(testdir.mkdir(subfolder_name)); + QVERIFY(testdir.cd(subfolder_name)); + + for (uint i=0; i<10000; ++i) { + QFile file(testdir.absolutePath() + "/testfile_" + QString::number(i)); + file.open(QIODevice::WriteOnly); + } + } + void cleanupTestCase() { + { + QDir testdir(QDir::tempPath() + QLatin1String("/test_speed")); + testdir.setSorting(QDir::Unsorted); + testdir.setFilter(QDir::AllEntries | QDir::System | QDir::Hidden); + foreach (const QString &filename, testdir.entryList()) { + testdir.remove(filename); + } + } + const QDir temp = QDir(QDir::tempPath()); + temp.rmdir(QLatin1String("test_speed")); + } +private slots: + void baseline() {} + + void sizeSpeed() { + QDir testdir(QDir::tempPath() + QLatin1String("/test_speed")); + QBENCHMARK { + QFileInfoList fileInfoList = testdir.entryInfoList(QDir::Files, QDir::Unsorted); + foreach (const QFileInfo &fileInfo, fileInfoList) { + fileInfo.isDir(); + fileInfo.size(); + } + } + } + void sizeSpeedIterator() { + QDir testdir(QDir::tempPath() + QLatin1String("/test_speed")); + QBENCHMARK { + QDirIterator dit(testdir.path(), QDir::Files); + while (dit.hasNext()) { + dit.next(); + dit.fileInfo().isDir(); + dit.fileInfo().size(); + } + } + } + + void sizeSpeedWithoutFilter() { + QDir testdir(QDir::tempPath() + QLatin1String("/test_speed")); + QBENCHMARK { + QFileInfoList fileInfoList = testdir.entryInfoList(QDir::NoFilter, QDir::Unsorted); + foreach (const QFileInfo &fileInfo, fileInfoList) { + fileInfo.size(); + } + } + } + void sizeSpeedWithoutFilterIterator() { + QDir testdir(QDir::tempPath() + QLatin1String("/test_speed")); + QBENCHMARK { + QDirIterator dit(testdir.path()); + while (dit.hasNext()) { + dit.next(); + dit.fileInfo().isDir(); + dit.fileInfo().size(); + } + } + } + + void sizeSpeedWithoutFileInfoList() { + QDir testdir(QDir::tempPath() + QLatin1String("/test_speed")); + testdir.setSorting(QDir::Unsorted); + QBENCHMARK { + QStringList fileList = testdir.entryList(QDir::NoFilter, QDir::Unsorted); + foreach (const QString &filename, fileList) { + QFileInfo fileInfo(filename); + fileInfo.size(); + } + } + } + + void iDontWantAnyStat() { + QDir testdir(QDir::tempPath() + QLatin1String("/test_speed")); + testdir.setSorting(QDir::Unsorted); + testdir.setFilter(QDir::AllEntries | QDir::System | QDir::Hidden); + QBENCHMARK { + QStringList fileList = testdir.entryList(QDir::NoFilter, QDir::Unsorted); + foreach (const QString &filename, fileList) { + + } + } + } + void iDontWantAnyStatIterator() { + QBENCHMARK { + QDirIterator dit(QDir::tempPath() + QLatin1String("/test_speed")); + while (dit.hasNext()) { + dit.next(); + } + } + } + + void sizeSpeedWithoutFilterLowLevel() { + QDir testdir(QDir::tempPath() + QLatin1String("/test_speed")); +#ifdef Q_OS_WIN + const wchar_t *dirpath = (wchar_t*)testdir.absolutePath().utf16(); + wchar_t appendedPath[MAX_PATH]; + wcscpy(appendedPath, dirpath); + wcscat(appendedPath, L"\\*"); + + WIN32_FIND_DATA fd; + HANDLE hSearch = FindFirstFileW(appendedPath, &fd); + QVERIFY(hSearch != INVALID_HANDLE_VALUE); + + QBENCHMARK { + do { + + } while (FindNextFile(hSearch, &fd)); + } + FindClose(hSearch); +#else + DIR *dir = opendir(qPrintable(testdir.absolutePath())); + QVERIFY(dir); + + QVERIFY(!chdir(qPrintable(testdir.absolutePath()))); + QBENCHMARK { + struct dirent *item = readdir(dir); + while (item) { + char *fileName = item->d_name; + + struct stat fileStat; + QVERIFY(!stat(fileName, &fileStat)); + + item = readdir(dir); + } + } + closedir(dir); +#endif + } +}; + +QTEST_MAIN(bench_QDir_10000) +#include "bench_qdir_10000.moc" |