diff options
Diffstat (limited to 'tests/benchmarks/corelib/text/qstringbuilder')
-rw-r--r-- | tests/benchmarks/corelib/text/qstringbuilder/main.cpp | 420 | ||||
-rw-r--r-- | tests/benchmarks/corelib/text/qstringbuilder/qstringbuilder.pro | 11 |
2 files changed, 431 insertions, 0 deletions
diff --git a/tests/benchmarks/corelib/text/qstringbuilder/main.cpp b/tests/benchmarks/corelib/text/qstringbuilder/main.cpp new file mode 100644 index 0000000000..0de6d33846 --- /dev/null +++ b/tests/benchmarks/corelib/text/qstringbuilder/main.cpp @@ -0,0 +1,420 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the test suite module 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +// Select one of the scenarios below +#define SCENARIO 1 + +#if SCENARIO == 1 +// this is the "no harm done" version. Only operator% is active, +// with NO_CAST * defined +#define P % +#undef QT_USE_FAST_OPERATOR_PLUS +#undef QT_USE_FAST_CONCATENATION +#define QT_NO_CAST_FROM_ASCII +#define QT_NO_CAST_TO_ASCII +#endif + + +#if SCENARIO == 2 +// this is the "full" version. Operator+ is replaced by a QStringBuilder +// based version +// with NO_CAST * defined +#define P + +#define QT_USE_FAST_OPERATOR_PLUS +#define QT_USE_FAST_CONCATENATION +#define QT_NO_CAST_FROM_ASCII +#define QT_NO_CAST_TO_ASCII +#endif + +#if SCENARIO == 3 +// this is the "no harm done" version. Only operator% is active, +// with NO_CAST * _not_ defined +#define P % +#undef QT_USE_FAST_OPERATOR_PLUS +#undef QT_USE_FAST_CONCATENATION +#undef QT_NO_CAST_FROM_ASCII +#undef QT_NO_CAST_TO_ASCII +#endif + +#if SCENARIO == 4 +// this is the "full" version. Operator+ is replaced by a QStringBuilder +// based version +// with NO_CAST * _not_ defined +#define P + +#define QT_USE_FAST_OPERATOR_PLUS +#define QT_USE_FAST_CONCATENATION +#undef QT_NO_CAST_FROM_ASCII +#undef QT_NO_CAST_TO_ASCII +#endif + + +#include <qbytearray.h> +#include <qdebug.h> +#include <qstring.h> +#include <qstringbuilder.h> + +#include <qtest.h> + +#include <string> + +#define COMPARE(a, b) QCOMPARE(a, b) +//#define COMPARE(a, b) + +#define SEP(s) qDebug() << "\n\n-------- " s " ---------"; + +#define LITERAL "some string literal" + +class tst_qstringbuilder : public QObject +{ + Q_OBJECT + +public: + tst_qstringbuilder() + : l1literal(LITERAL), + l1string(LITERAL), + ba(LITERAL), + string(l1string), + stdstring(LITERAL), + stringref(&string, 2, 10), + achar('c'), + r2(QLatin1String(LITERAL LITERAL)), + r3(QLatin1String(LITERAL LITERAL LITERAL)), + r4(QLatin1String(LITERAL LITERAL LITERAL LITERAL)), + r5(QLatin1String(LITERAL LITERAL LITERAL LITERAL LITERAL)) + {} + + +public: + enum { N = 10000 }; + + int run_traditional() + { + int s = 0; + for (int i = 0; i < N; ++i) { +#if 0 + s += QString(l1string + l1string).size(); + s += QString(l1string + l1string + l1string).size(); + s += QString(l1string + l1string + l1string + l1string).size(); + s += QString(l1string + l1string + l1string + l1string + l1string).size(); +#endif + s += QString(achar + l1string + achar).size(); + } + return s; + } + + int run_builder() + { + int s = 0; + for (int i = 0; i < N; ++i) { +#if 0 + s += QString(l1literal P l1literal).size(); + s += QString(l1literal P l1literal P l1literal).size(); + s += QString(l1literal P l1literal P l1literal P l1literal).size(); + s += QString(l1literal P l1literal P l1literal P l1literal P l1literal).size(); +#endif + s += QString(achar % l1literal % achar).size(); + } + return s; + } + +private slots: + + void separator_0() { + qDebug() << "\nIn each block the QStringBuilder based result appear first " + "(with a 'b_' prefix), QStringBased second ('q_' prefix), std::string " + "last ('s_' prefix)\n"; + } + + void separator_1() { SEP("literal + literal (builder first)"); } + + void b_2_l1literal() { + QBENCHMARK { r = l1literal P l1literal; } + COMPARE(r, r2); + } + #ifndef QT_NO_CAST_FROM_ASCII + void b_l1literal_LITERAL() { + QBENCHMARK { r = l1literal P LITERAL; } + COMPARE(r, r2); + } + #endif + void q_2_l1string() { + QBENCHMARK { r = l1string + l1string; } + COMPARE(r, r2); + } + + + void separator_2() { SEP("2 strings"); } + + void b_2_string() { + QBENCHMARK { r = string P string; } + COMPARE(r, r2); + } + void q_2_string() { + QBENCHMARK { r = string + string; } + COMPARE(r, r2); + } + void s_2_string() { + QBENCHMARK { stdr = stdstring + stdstring; } + COMPARE(stdr, stdstring + stdstring); + } + + + void separator_2c() { SEP("2 string refs"); } + + void b_2_stringref() { + QBENCHMARK { r = stringref % stringref; } + COMPARE(r, QString(stringref.toString() + stringref.toString())); + } + void q_2_stringref() { + QBENCHMARK { r = stringref.toString() + stringref.toString(); } + COMPARE(r, QString(stringref % stringref)); + } + + + void separator_2b() { SEP("3 strings"); } + + void b_3_string() { + QBENCHMARK { r = string P string P string; } + COMPARE(r, r3); + } + void q_3_string() { + QBENCHMARK { r = string + string + string; } + COMPARE(r, r3); + } + void s_3_string() { + QBENCHMARK { stdr = stdstring + stdstring + stdstring; } + COMPARE(stdr, stdstring + stdstring + stdstring); + } + + void separator_2e() { SEP("4 strings"); } + + void b_4_string() { + QBENCHMARK { r = string P string P string P string; } + COMPARE(r, r4); + } + void q_4_string() { + QBENCHMARK { r = string + string + string + string; } + COMPARE(r, r4); + } + void s_4_string() { + QBENCHMARK { stdr = stdstring + stdstring + stdstring + stdstring; } + COMPARE(stdr, stdstring + stdstring + stdstring + stdstring); + } + + + + void separator_2a() { SEP("string + literal (builder first)"); } + + void b_string_l1literal() { + QBENCHMARK { r = string % l1literal; } + COMPARE(r, r2); + } + #ifndef QT_NO_CAST_FROM_ASCII + void b_string_LITERAL() { + QBENCHMARK { r = string P LITERAL; } + COMPARE(r, r2); + } + void b_LITERAL_string() { + QBENCHMARK { r = LITERAL P string; } + COMPARE(r, r2); + } + #endif + void b_string_l1string() { + QBENCHMARK { r = string P l1string; } + COMPARE(r, r2); + } + void q_string_l1literal() { + QBENCHMARK { r = string + l1string; } + COMPARE(r, r2); + } + void q_string_l1string() { + QBENCHMARK { r = string + l1string; } + COMPARE(r, r2); + } + void s_LITERAL_string() { + QBENCHMARK { stdr = LITERAL + stdstring; } + COMPARE(stdr, stdstring + stdstring); + } + + + void separator_3() { SEP("3 literals"); } + + void b_3_l1literal() { + QBENCHMARK { r = l1literal P l1literal P l1literal; } + COMPARE(r, r3); + } + void q_3_l1string() { + QBENCHMARK { r = l1string + l1string + l1string; } + COMPARE(r, r3); + } + void s_3_l1string() { + QBENCHMARK { stdr = stdstring + LITERAL + LITERAL; } + COMPARE(stdr, stdstring + stdstring + stdstring); + } + + + void separator_4() { SEP("4 literals"); } + + void b_4_l1literal() { + QBENCHMARK { r = l1literal P l1literal P l1literal P l1literal; } + COMPARE(r, r4); + } + void q_4_l1string() { + QBENCHMARK { r = l1string + l1string + l1string + l1string; } + COMPARE(r, r4); + } + + + void separator_5() { SEP("5 literals"); } + + void b_5_l1literal() { + QBENCHMARK { r = l1literal P l1literal P l1literal P l1literal P l1literal; } + COMPARE(r, r5); + } + + void q_5_l1string() { + QBENCHMARK { r = l1string + l1string + l1string + l1string + l1string; } + COMPARE(r, r5); + } + + + void separator_6() { SEP("4 chars"); } + + void b_string_4_char() { + QBENCHMARK { r = string + achar + achar + achar + achar; } + COMPARE(r, QString(string P achar P achar P achar P achar)); + } + + void q_string_4_char() { + QBENCHMARK { r = string + achar + achar + achar + achar; } + COMPARE(r, QString(string P achar P achar P achar P achar)); + } + + void s_string_4_char() { + QBENCHMARK { stdr = stdstring + 'c' + 'c' + 'c' + 'c'; } + COMPARE(stdr, stdstring + 'c' + 'c' + 'c' + 'c'); + } + + + void separator_7() { SEP("char + string + char"); } + + void b_char_string_char() { + QBENCHMARK { r = achar + string + achar; } + COMPARE(r, QString(achar P string P achar)); + } + + void q_char_string_char() { + QBENCHMARK { r = achar + string + achar; } + COMPARE(r, QString(achar P string P achar)); + } + + void s_char_string_char() { + QBENCHMARK { stdr = 'c' + stdstring + 'c'; } + COMPARE(stdr, 'c' + stdstring + 'c'); + } + + + void separator_8() { SEP("string.arg"); } + + void b_string_arg() { + const QString pattern = l1string + QString::fromLatin1("%1") + l1string; + QBENCHMARK { r = l1literal P string P l1literal; } + COMPARE(r, r3); + } + + void q_string_arg() { + const QString pattern = l1string + QLatin1String("%1") + l1string; + QBENCHMARK { r = pattern.arg(string); } + COMPARE(r, r3); + } + + void q_bytearray_arg() { + QByteArray result; + QBENCHMARK { result = ba + ba + ba; } + } + + + void separator_9() { SEP("QString::reserve()"); } + + void b_reserve() { + QBENCHMARK { + r.clear(); + r = string P string P string P string; + } + COMPARE(r, r4); + } + void b_reserve_lit() { + QBENCHMARK { + r.clear(); + r = string P l1literal P string P string; + } + COMPARE(r, r4); + } + void s_reserve() { + QBENCHMARK { + r.clear(); + r.reserve(string.size() + string.size() + string.size() + string.size()); + r += string; + r += string; + r += string; + r += string; + } + COMPARE(r, r4); + } + void s_reserve_lit() { + QBENCHMARK { + r.clear(); + //r.reserve(string.size() + qstrlen(l1string.latin1()) + // + string.size() + string.size()); + r.reserve(1024); + r += string; + r += l1string; + r += string; + r += string; + } + COMPARE(r, r4); + } + +private: + const QLatin1String l1literal; + const QLatin1String l1string; + const QByteArray ba; + const QString string; + const std::string stdstring; + const QStringRef stringref; + const QLatin1Char achar; + const QString r2, r3, r4, r5; + + // short cuts for results + QString r; + std::string stdr; +}; + +QTEST_MAIN(tst_qstringbuilder) + +#include "main.moc" diff --git a/tests/benchmarks/corelib/text/qstringbuilder/qstringbuilder.pro b/tests/benchmarks/corelib/text/qstringbuilder/qstringbuilder.pro new file mode 100644 index 0000000000..fa4cbe3c13 --- /dev/null +++ b/tests/benchmarks/corelib/text/qstringbuilder/qstringbuilder.pro @@ -0,0 +1,11 @@ +TEMPLATE = app +TARGET = tst_bench_qstringbuilder + +QMAKE_CXXFLAGS += -g +QMAKE_CFLAGS += -g + +QT = core testlib + +CONFIG += release + +SOURCES += main.cpp |