Prioritising the user interface

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Andrew Mallinson - 22 Nov 2003 00:41 GMT

Hi

Ive currently set my program up with a simple JFrame interface and a couple
of JMenus and JMenuItems. Just enough to allow me to read in some files and
start the program running.

The program starts about 50+ threads running in the background. Before the
threads are set running the interface works fine, however whilst the threads
are running it becomes a lot less responsive (i guess due to the extra
processing power the threads require).

Is there a way to maybe prioritise the user interface (i guess this runs on
a thread as well) so that it is given more of the processing power (time)
and can therefore respond better when i click the mouse on one of the menu
options.

Many thanks in advance for your help
Regards
Andy

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Harald Hein - 22 Nov 2003 08:03 GMT

> Is there a way to maybe prioritise the user interface (i guess
> this runs on a thread as well) so that it is given more of the
> processing power (time) and can therefore respond better when i
> click the mouse on one of the menu options.

You can give threads a different priority, read the API docs ... BUT
this is just a suggestion. JVMs are allowed to ignore it. I would
suggest you start less threads, (queue the tasks), and do less updates
to the GUI.

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Stephan Friedrichs - 22 Nov 2003 15:47 GMT

> Hi
>
[quoted text clipped - 4 lines]
> and can therefore respond better when i click the mouse on one of the menu
> options.

SwingUtilities.invokeLater(new Runnable() {
public void run() {
Thread.currentThread().setPriority(Thread.MAX_PRIORITY);
}
});

If this is not the usual setting...

> Many thanks in advance for your help
> Regards
> Andy

Hope this helps - Stephan

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Prioritising the user interface

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