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** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "QtTest/qbenchmark.h" #include "QtTest/private/qbenchmark_p.h" #ifdef QT_GUI_LIB #include <QtGui/qapplication.h> #endif #include <QtCore/qprocess.h> #include <QtCore/qdir.h> #include <QtCore/qset.h> #include <QtCore/qdebug.h> QT_BEGIN_NAMESPACE QBenchmarkGlobalData *QBenchmarkGlobalData::current; QBenchmarkGlobalData::QBenchmarkGlobalData() : measurer(0) , walltimeMinimum(-1) , iterationCount(-1) , medianIterationCount(-1) , createChart(false) , verboseOutput(false) , mode_(WallTime) { setMode(mode_); } QBenchmarkGlobalData::~QBenchmarkGlobalData() { delete measurer; QBenchmarkGlobalData::current = 0; } void QBenchmarkGlobalData::setMode(Mode mode) { mode_ = mode; if (measurer) delete measurer; measurer = createMeasurer(); } QBenchmarkMeasurerBase * QBenchmarkGlobalData::createMeasurer() { QBenchmarkMeasurerBase *measurer = 0; if (0) { #ifdef QTESTLIB_USE_VALGRIND } else if (mode_ == CallgrindChildProcess || mode_ == CallgrindParentProcess) { measurer = new QBenchmarkCallgrindMeasurer; #endif #ifdef HAVE_TICK_COUNTER } else if (mode_ == TickCounter) { measurer = new QBenchmarkTickMeasurer; #endif } else if (mode_ == EventCounter) { measurer = new QBenchmarkEvent; } else { measurer = new QBenchmarkTimeMeasurer; } measurer->init(); return measurer; } int QBenchmarkGlobalData::adjustMedianIterationCount() { if (medianIterationCount != -1) { return medianIterationCount; } else { return measurer->adjustMedianCount(1); } } QBenchmarkTestMethodData *QBenchmarkTestMethodData::current; QBenchmarkTestMethodData::QBenchmarkTestMethodData() :resultAccepted(false), runOnce(false), iterationCount(-1) { } QBenchmarkTestMethodData::~QBenchmarkTestMethodData() { QBenchmarkTestMethodData::current = 0; } void QBenchmarkTestMethodData::beginDataRun() { iterationCount = adjustIterationCount(1); } void QBenchmarkTestMethodData::endDataRun() { } int QBenchmarkTestMethodData::adjustIterationCount(int suggestion) { // Let the -iteration-count option override the measurer. if (QBenchmarkGlobalData::current->iterationCount != -1) { iterationCount = QBenchmarkGlobalData::current->iterationCount; } else { iterationCount = QBenchmarkGlobalData::current->measurer->adjustIterationCount(suggestion); } return iterationCount; } void QBenchmarkTestMethodData::setResult(qint64 value) { bool accepted = false; // Always accept the result if the iteration count has been // specified on the command line with -iteartion-count. if (QBenchmarkGlobalData::current->iterationCount != -1) accepted = true; if (QBenchmarkTestMethodData::current->runOnce) { iterationCount = 1; accepted = true; } // Test the result directly without calling the measurer if the minimum time // has been specifed on the command line with -minimumvalue. else if (QBenchmarkGlobalData::current->walltimeMinimum != -1) accepted = (value > QBenchmarkGlobalData::current->walltimeMinimum); else accepted = QBenchmarkGlobalData::current->measurer->isMeasurementAccepted(value); // Accept the result or double the number of iterations. if (accepted) resultAccepted = true; else iterationCount *= 2; this->result = QBenchmarkResult(QBenchmarkGlobalData::current->context, value, iterationCount); } /*! \class QTest::QBenchmarkIterationController \internal The QBenchmarkIterationController class is used by the QBENCHMARK macro to drive the benchmarking loop. It is repsonsible for starting and stopping the timing measurements as well as calling the result reporting functions. */ /*! \internal */ QTest::QBenchmarkIterationController::QBenchmarkIterationController(RunMode runMode) { i = 0; if (runMode == RunOnce) QBenchmarkTestMethodData::current->runOnce = true; QTest::beginBenchmarkMeasurement(); } QTest::QBenchmarkIterationController::QBenchmarkIterationController() { i = 0; QTest::beginBenchmarkMeasurement(); } /*! \internal */ QTest::QBenchmarkIterationController::~QBenchmarkIterationController() { QBenchmarkTestMethodData::current->setResult(QTest::endBenchmarkMeasurement()); } /*! \internal */ bool QTest::QBenchmarkIterationController::isDone() { if (QBenchmarkTestMethodData::current->runOnce) return i > 0; return i >= QTest::iterationCount(); } /*! \internal */ void QTest::QBenchmarkIterationController::next() { ++i; } /*! \internal */ int QTest::iterationCount() { return QBenchmarkTestMethodData::current->iterationCount; } /*! \internal */ void QTest::setIterationCountHint(int count) { QBenchmarkTestMethodData::current->adjustIterationCount(count); } /*! \internal */ void QTest::setIterationCount(int count) { QBenchmarkTestMethodData::current->iterationCount = count; QBenchmarkTestMethodData::current->resultAccepted = true; } /*! \internal */ void QTest::beginBenchmarkMeasurement() { QBenchmarkGlobalData::current->measurer->start(); // the clock is ticking after the line above, don't add code here. } /*! \internal */ qint64 QTest::endBenchmarkMeasurement() { // the clock is ticking before the line below, don't add code here. return QBenchmarkGlobalData::current->measurer->stop(); } /*! \internal */ void QTest::setResult(qint64 result) { QBenchmarkTestMethodData::current->setResult(result); } /*! \internal */ void QTest::setResult(const QString &tag, qint64 result) { QBenchmarkContext context = QBenchmarkGlobalData::current->context; context.tag = tag; QBenchmarkTestMethodData::current->result = QBenchmarkResult( context, result, QBenchmarkTestMethodData::current->iterationCount); } template <typename T> Q_TYPENAME T::value_type qAverage(const T &container) { Q_TYPENAME T::const_iterator it = container.constBegin(); Q_TYPENAME T::const_iterator end = container.constEnd(); Q_TYPENAME T::value_type acc = Q_TYPENAME T::value_type(); int count = 0; while (it != end) { acc += *it; ++it; ++count; } return acc / count; } QT_END_NAMESPACE