[jsyn] CPU usage with looping threads

[jsyn at music.columbia.edu]

Hello JSyn list,
I have written this simple code to make a 8 tracks piece in a web  
applet. every track has random values renewed at every queue.
It works quite fine, but as I can see from my CPU activity, it takes  
a lot of usage. Maybe it's because of the way I structured the  
thread. Can you please tell me if there's something very wrong with it?


public class FadesAppletPoly extends Applet implements Runnable		
{	
	thread 	looper
	PanUnit	pan1
	etc...

(...)

	public void run()
	{
		while(go)
		{		
		sinOsc1 = new SineOscillator();
		envelope1 = new SynthEnvelope( envelope1Data );
		Random r = new Random();
		etc...

		envelope1.setReleaseLoop( -1, -1 );
		sinOsc1.frequency.set(440.0);
		etc...
		
		// Connect units and ports.
		
		sinOsc1.output.connect( pan1.input);
		etc...
		
		sinOsc1.start();		
		pan1.start();		
		etc..
		
		// reassign new random values and queue.

		envelope1Data[0] = (r.nextFloat() * 30) + 0.02;	
		sinOsc1.frequency.set(newRandFreq);						
		int time = Synth.getTickCount();
		envelope1 = new SynthEnvelope( envelope1Data );	
		time += (int) ( durataInSec) * rate;
		envPlay1.envelopePort.clear();			
		envPlay1.envelopePort.queue(envelope1, 0, 4 );
		Synth.sleepUntilTick( time );
		envelope1.delete();
		}		
	}

	public boolean action(Event evt, Object what)
    	{
		if( evt.target == hitme )
    		{
			Synth.startEngine(0);
			for (int j=1; j<8; j++) {
			looper = new Thread(this);
			looper.start();
		} 			
	}
	
	public void stop()
	{
		go = false;
		Synth.stopEngine();
		removeAll();
	}
}


(if needed you can test the online work-in-progress version here:  
www.fades.net/Test/fades2.html)

Thank you in advance

Antonio