I am trying to clamp the framerate for my FPS breakout to about
50, and I've noticed a significant discrepancy between the hi-
res microsecond timer and the normal whole second timer.  I'm
guessing this is because the low-res timer uses the mobo clock,
and so is pretty exact, whereas the high-res timer relies on
system ticks, which are more variable.  Can anyone confirm this
experience? I'm calculating the frame rate crudely, in the
drawing function:         static int reps = -1;         static
time_t t = 0;         time_t x;         if (!(reps%1000)) {
if (t) {                         x = time(NULL);
printf("%d frames per second\n",1000/((int)x-(int)t));
t = time(NULL); And using a timer function to call the drawing
function, with more static variables and the high-res timer: If
less than 20000 usecs have passed, the timer waits for the
difference. Considering the unrestrained frame rate was 200-300,
this pause should be a given, resulting in 50 fps.  Bu