I would like to pick up where this thread left off: http://www.opengl.org/discussion_boards/ubb/Forum3/HTML/004011.html
The question is waiting for vblank by busy-wait (spin-lock) vs. thread-block (in nVidia drivers).
It seems that it was agreed that thread-block is the “good thing” but it is not released yet.
What is the current situation? In Windows? In Linux?
Is it configurable? (like actual wait-for-vblank is)