I'm curious if anyone knows the cause of this. I have a couple different flavors of mac book pros (10.6.7) and have seen this behavior on all of them...even the latest and greatest. If I connect a second monitor and move the jit.window to that screen, I'll see the fps fluctuate between 30 and 60fps. This is with no processing just a bang to the renderer but no other processing with the other gl objects). And the odder part is that it's cyclical: every 15 seconds (almost exactly!) it will go thru a complete cycle of 60fps for several seconds, quick drop to 30 fps where it stays for several seconds, then quickly back to 60 fps.
Has any one else seen this? Just wondering if it is something special in my code. Even with the simple patch below (just a gl.render and jit.window) I see a cycle between 45 and 60.
Thanks in advance for any insight!