> > The application runs fine initially but after 300 secs or so it becomes > very slow and eventually hangs. > I am not doing any memory allocations. > > I hope you are using signals and slots to decouple the capturing and plotting. When you get data, emit a signal connected to a slot which plots the data. This asynchronous mechanism helps keep the application stay responsive. Otherwise, it could lead to a busy loop situation causing the application to freeze.
-Sanat -- LUG@IITD - http://lug-iitd.org/Footer
