OpenGL - render timing jitter makes animation jerky

Dear experts,

I hope this kind of `crossposting’ is allowed - I just this nvidia forum later and think some people here may be helpful to answer my question:
http://stackoverflow.com/questions/14416033/opengl-render-timing-jitter-makes-animation-jerky

many thanks and again, sorry for crossposting. You may reply here or on stackoverflow.
pottendo

fyi,
http://paradoxuncreated.com/Blog/wordpress/?p=2268
gave very valuable hints to improve/reduce/eliminate the jitter to a minimum.

Key seems to be: a lightweight desktop, such as lubuntu (I used ubuntu/gnome-shell initially) and the kernel option ‘idle=poll’

have fun, pottendo