QTimer * timerMemory = new QTimer(this);
//timerMemory->setInterval(5);
connect(timerMemory, SIGNAL(timeout()), this, SLOT(UpdateMemoryUsage()));
QTimer * timerMemory = new QTimer(this);
//timerMemory->setInterval(5);
connect(timerMemory, SIGNAL(timeout()), this, SLOT(UpdateMemoryUsage()));