Frame rate slow for multiple canvases

I have 5 simple canvases being displayed in a single frame.  The cpu's are loaded at 1/2 a percent.  My frame rate is about 12 FPS.  I've tried all sorts of strategies( an animator, calling canvas.repaint() in a timed thread, ...).  I'm guessing that each call to a canvas display() method, regardless of how it's done, will delay further processing until the next swapbuffer. Any ideas?

Hi

You don't give us enough information. Do you reproduce your problem of performance on a unit test? Do you use AWT or NEWT? I display 6 canvases in the same frames without troubles in my case but there is nothing that we can do if your geometry is quite big. I don't know what the bottleneck is.

Thanks for the reply.  I'm triggering off the sound card upon reading a 2K sample.  Since posting I put a nano timer around my TargetDataLine.read().  I'm consistently getting data in less than 2 msec. with 135 msec. spikes every third to fifth sample.  I think this is my problem - not a JOGL issue.

Ok thank you for the feedback. Maybe you can use JOAL instead of JavaSound but I can't be sure that you would get better performance. You can split the reading of the data and the update of the display so that the former doesn't drive the later "slow".