GUI running at 30 fps?

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It turns out SwingWorker posts instances of Runnable to the EventQueue using a javax.swing.Timer with exactly that DELAY.

private static class DoSubmitAccumulativeRunnable 
      extends AccumulativeRunnable<Runnable> implements ActionListener {
    private final static int DELAY = (int) (1000 / 30);
    ...
}

You can get a higher frame rate, but not with javax.swing.SwingWorker. You can build SwingWorker from source, but eventually you saturate the thread with instances of Runnable. One alternative is to run the model flat out and sample it periodically, as shown here.

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