Because the directory includes the program directory it scans through the entirety of my program file (several gb). How can I reduce or remove this time and does anyone know what the cause might be?Įdit: Not sure if it's relevant, but I have QT_QPA_PLATFORM_PLUGIN_PATH="C:\Qt-5.5.1\plugins\platforms\" which is how it finds the platform plugin.Įdit2: Further investigation shows that the cause is that in the process of initializing the program, QFactoryLoader::update() scans through every file in some directories looking for a pattern.
#Improve startup time windows 7 windows#
It's basically spending several minutes every startup initializing the windows platform plugin.
Qt5Widgetsd.dll!QApplication::QApplication(int & argc, char * * argv, int _internal) Line 569 C++ Qt5Guid.dll!QGuiApplication::QGuiApplication(QGuiApplicationPrivate & p) Line 570 C++ Qt5Cored.dll!QCoreApplication::QCoreApplication(QCoreApplicationPrivate & p) Line 689 C++ Qt5Cored.dll!QCoreApplication::init() Line 769 C++ Qt5Widgetsd.dll!QApplicationPrivate::createEventDispatcher() Line 197 C++ Qt5Guid.dll!QGuiApplicationPrivate::createEventDispatcher() Line 1196 C++ Qt5Guid.dll!QGuiApplicationPrivate::createPlatformIntegration() Line 1176 C++ Qt5Guid.dll!init_platform(const QString & pluginArgument, const QString & platformPluginPath, const QString & platformThemeName, int & argc, char * * argv) Line 1019 C++ Qt5Guid.dll!QPlatformIntegrationFactory::create(const QString & platform, const QStringList & paramList, int & argc, char * * argv, const QString & platformPluginPath) Line 70 C++
Looking into it, the program seems to be spending its time here: Qt5Guid.dll!QGlobalStatic::operator()() Line 129 C++ I recently switched to Qt5 and I noticed that initializing QApplication is taking noticeably longer (on the order of minutes) compared to Qt4.
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