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Diffstat (limited to 'tests/benchmarks/corelib/mimetypes/qmimedatabase/main.cpp')
-rw-r--r-- | tests/benchmarks/corelib/mimetypes/qmimedatabase/main.cpp | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/tests/benchmarks/corelib/mimetypes/qmimedatabase/main.cpp b/tests/benchmarks/corelib/mimetypes/qmimedatabase/main.cpp deleted file mode 100644 index 900e7028a4..0000000000 --- a/tests/benchmarks/corelib/mimetypes/qmimedatabase/main.cpp +++ /dev/null @@ -1,86 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the test suite 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 <QTest> -#include <QMimeDatabase> - -class tst_QMimeDatabase: public QObject -{ - - Q_OBJECT - -private slots: - void inheritsPerformance(); - void benchMimeTypeForName(); -}; - -void tst_QMimeDatabase::inheritsPerformance() -{ - // Check performance of inherits(). - // This benchmark (which started in 2009 in kmimetypetest.cpp) uses 40 mimetypes. - QStringList mimeTypes; - mimeTypes << QLatin1String("image/jpeg") << QLatin1String("image/png") << QLatin1String("image/tiff") << QLatin1String("text/plain") << QLatin1String("text/html"); - mimeTypes += mimeTypes; - mimeTypes += mimeTypes; - mimeTypes += mimeTypes; - QCOMPARE(mimeTypes.count(), 40); - QMimeDatabase db; - QMimeType mime = db.mimeTypeForName(QString::fromLatin1("text/x-chdr")); - QVERIFY(mime.isValid()); - QBENCHMARK { - QString match; - foreach (const QString &mt, mimeTypes) { - if (mime.inherits(mt)) { - match = mt; - // of course there would normally be a "break" here, but we're testing worse-case - // performance here - } - } - QCOMPARE(match, QString::fromLatin1("text/plain")); - } - // Numbers from 2011, in release mode: - // KDE 4.7 numbers: 0.21 msec / 494,000 ticks / 568,345 instr. loads per iteration - // QMimeBinaryProvider (with Qt 5): 0.16 msec / NA / 416,049 instr. reads per iteration - // QMimeXmlProvider (with Qt 5): 0.062 msec / NA / 172,889 instr. reads per iteration - // (but the startup time is way higher) - // And memory usage is flat at 200K with QMimeBinaryProvider, while it peaks at 6 MB when - // parsing XML, and then keeps being around 4.5 MB for all the in-memory hashes. -} - -void tst_QMimeDatabase::benchMimeTypeForName() -{ - QMimeDatabase db; - - QBENCHMARK { - const auto s = db.mimeTypeForName(QStringLiteral("text/plain")); - QVERIFY(s.isValid()); - } -} - -QTEST_MAIN(tst_QMimeDatabase) -#include "main.moc" |