diff options
Diffstat (limited to 'tests/benchmarks/corelib/mimetypes/qmimedatabase/tst_bench_qmimedatabase.cpp')
| -rw-r--r-- | tests/benchmarks/corelib/mimetypes/qmimedatabase/tst_bench_qmimedatabase.cpp | 66 |
1 files changed, 24 insertions, 42 deletions
diff --git a/tests/benchmarks/corelib/mimetypes/qmimedatabase/tst_bench_qmimedatabase.cpp b/tests/benchmarks/corelib/mimetypes/qmimedatabase/tst_bench_qmimedatabase.cpp index 959330f256..ffc65e7949 100644 --- a/tests/benchmarks/corelib/mimetypes/qmimedatabase/tst_bench_qmimedatabase.cpp +++ b/tests/benchmarks/corelib/mimetypes/qmimedatabase/tst_bench_qmimedatabase.cpp @@ -1,35 +1,12 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Copyright (C) 2021 Igor Kushnir <igorkuo@gmail.com> -** 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. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2016 The Qt Company Ltd. +// Copyright (C) 2021 Igor Kushnir <igorkuo@gmail.com> +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only #include <QTest> #include <QMimeDatabase> +using namespace Qt::StringLiterals; + namespace { struct MatchModeInfo { @@ -76,26 +53,31 @@ 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); + // (eight groups of five unique ones) + const QString uniqueMimeTypes[] = { + u"image/jpeg"_s, + u"image/png"_s, + u"image/tiff"_s, + u"text/plain"_s, + u"text/html"_s, + }; + constexpr size_t NumOuterLoops = 40 / std::size(uniqueMimeTypes); QMimeDatabase db; - QMimeType mime = db.mimeTypeForName(QString::fromLatin1("text/x-chdr")); + const QMimeType mime = db.mimeTypeForName(u"text/x-chdr"_s); QVERIFY(mime.isValid()); + QString match; 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 + for (size_t i = 0; i < NumOuterLoops; ++i) { + for (const QString &mt : uniqueMimeTypes) { + 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")); } + QCOMPARE(match, u"text/plain"_s); // 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 |