Amdahl

Amdahl's Law is a concept in computing that helps us understand the potential speedup of a task when improving parts of a system. It states that the overall performance gain depends on how much of the task can be sped up and how much remains unchanged. For example, if 30% of a job can be made faster with better hardware, the maximum speedup is limited—no matter how much the rest is improved. This principle helps in deciding whether investing in upgrades will significantly boost performance, emphasizing that improvements are most effective when they target the parts most used or time-consuming.