Slide 7 of 47
Notes:
The model expresses the CPU resource in cycles per second. Each job on the machine receives an equal share of those cycles. Divide each share by 10 if the machine is thrashing.
Jobs complete when they receive a certain number of CPU cycles.
Example: A CPU has 8 jobs on it and computes a million cycles per second. A job needing three million cycles to complete will stay on that machine for 24 seconds. (This rises to 240 seconds if the memory resource is overused.) If the job runs for 12 seconds and the load then drops to 4, the job needs 6 more seconds to complete.