•Use Pentium II “read timestamp”
instruction for a very cheap high resolution clock.
resolution clocks will cause incorrect predictions that oscillate.
critical parts of your game, simulation, AI, rendering, main loop time and
page flip stall.
•Try to lock frame rate at a multiple of the actual monitor’s frame
•You may waste some time by locking the frame rate, but it
avoids frame rate changes that are very noticeable above 30hz.