One difference to take into account is how much memory overhead the different toolkits have. Responsiveness these days is mostly down to drawing and input architecture. For instance GTK3 does not behave smoothly when used with a different than GNOME3 or no compositor at all, while curiously Qt5 has no such regression. That means on current hardware memory overhead becomes more interesting to optimize than the already fast enough interactive responsiveness. Qt5 and GTK3 both seem to be very hard to write a Hello World X11 or Wayland window that uses less than 25MB to 30MB. This is something that can quickly become a problem and deal breaker if you want to run more than a few GUI applications. I mean I expect a major overhead when using QML since it is a mini browser engine of sorts, but I don't expect more than 5MB or 10MB base GUI toolkit overhead, even on 64-bit. I don't know how much GTK and Qt use on Windows or macOS, but I do remember that macOS applications occupy IME large amounts of memory. Windows used to be in the space as X11 when I last ran it years ago. I guess what I'm trying to ask is where the resident memory goes in a GTK or Qt Hello World. _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx https://mail.gnome.org/mailman/listinfo/gtk-list
