Changes
CPU should be written in capital
For example if group A had 8 processes running and group B had 4, then each group would get half the time, meaning that each process in the A group would only get 6.25% of the time (8*6.5 = 50) and each process in group B would get 12.5% of the time.
There are a number of different implementations of the fair-share scheduler other than the ones described here. I know of one that actually kept track of the accumulated time over a time period for a user/group and would use that information in it's calculations. The theory was that if you'd been a cpu CPU hog in the past, you might not get as much time right now. This calculation also was also time weighted such that your share of time in the last second was much more important than a second a few minutes ago.
