Whether you are developing code, monitoring system utilization, or debugging an application, you need to consider the Pareto principle, also known as the 80/20 rule, or the rule of the vital few and the trivial many. If you consider the Pareto principle, you may find that you do not need to optimize all of an application’s code. Instead, you can focus your effort on the 20 percent of the code that users use most often.
Consider system performance monitoring. What other relationships, such as disk space use or database space use, may relate to the Pareto principle?