Add a benchmark comparing single shot timer with invokeMethod

Reviewed-by: joao

2 files changed, 107 insertions, 0 deletions

diff --git a/tests/benchmarks/corelib/kernel/qtimer_vs_qmetaobject/qtimer_vs_qmetaobject.pro b/tests/benchmarks/corelib/kernel/qtimer_vs_qmetaobject/qtimer_vs_qmetaobject.pro
new file mode 100644
index 0000000..9c6b16b
--- /dev/null
+++ b/tests/benchmarks/corelib/kernel/qtimer_vs_qmetaobject/qtimer_vs_qmetaobject.pro
@@ -0,0 +1,11 @@
+load(qttest_p4)
+TEMPLATE = app
+TARGET = qtimer_vs_qmetaobject
+DEPENDPATH += .
+INCLUDEPATH += .
+
+CONFIG += release
+#CONFIG += debug
+
+
+SOURCES += tst_qtimer_vs_qmetaobject.cpp
diff --git a/tests/benchmarks/corelib/kernel/qtimer_vs_qmetaobject/tst_qtimer_vs_qmetaobject.cpp b/tests/benchmarks/corelib/kernel/qtimer_vs_qmetaobject/tst_qtimer_vs_qmetaobject.cpp
new file mode 100644
index 0000000..2f265bf
--- /dev/null
+++ b/tests/benchmarks/corelib/kernel/qtimer_vs_qmetaobject/tst_qtimer_vs_qmetaobject.cpp
@@ -0,0 +1,96 @@
+/****************************************************************************
+**
+** 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtCore>
+#include <QtTest/QtTest>
+
+#define INVOKE_COUNT 10000
+
+class qtimer_vs_qmetaobject : public QObject
+{
+    Q_OBJECT
+private slots:
+    void testZeroTimerSingleShot();
+    void testQueuedInvokeMethod();
+};
+
+class InvokeCounter : public QObject {
+    Q_OBJECT
+public:
+    InvokeCounter() : count(0) { };
+public slots:
+    void invokeSlot() {
+        count++;
+        if (count == INVOKE_COUNT)
+            QTestEventLoop::instance().exitLoop();
+    }
+protected:
+    int count;
+};
+
+void qtimer_vs_qmetaobject::testZeroTimerSingleShot()
+{
+    QBENCHMARK {
+        InvokeCounter invokeCounter;
+        for(int i = 0; i < INVOKE_COUNT; ++i) {
+            QTimer::singleShot(0, &invokeCounter, SLOT(invokeSlot()));
+        }
+        QTestEventLoop::instance().enterLoop(10);
+        QVERIFY(!QTestEventLoop::instance().timeout());
+    }
+}
+
+void qtimer_vs_qmetaobject::testQueuedInvokeMethod()
+{
+    QBENCHMARK {
+        InvokeCounter invokeCounter;
+        for(int i = 0; i < INVOKE_COUNT; ++i) {
+            QMetaObject::invokeMethod(&invokeCounter, "invokeSlot", Qt::QueuedConnection);
+        }
+        QTestEventLoop::instance().enterLoop(10);
+        QVERIFY(!QTestEventLoop::instance().timeout());
+    }
+}
+
+
+QTEST_MAIN(qtimer_vs_qmetaobject)
+
+#include "tst_qtimer_vs_qmetaobject.moc"