i have a sketch that is producing some animation. two animals consisting of particles and springs are moving over the screen. problem is: the framerate varies from 70fps to 300ps. whenever i start the sketch again i fet a highly different framerate. the variation does not happen because if other applications eating up my cpu/gpu power. 

i am using toxiclibs physics. the sketch is running on a macbook pro with an ati 6750m as graphicscard. i am using windows as os. this macbook also has simple onboard graphicscard. can the jumping framerates result from uncontrolled switching between the simple card and the ati card.

any help appreciated

 martin

i am using the newest processing version.