Eremin, E. A. (2017). Educational Multiprocessor Simulator “E14” and Its Usage for Expanding the Formula of Amdahl’s Law [Conference presentation]. 2017 25th Euromicro International Conference on Parallel, Distributed and Network-Based Processing (PDP), 241–245. This resource will help you understand more about Amdahl’s law.
Denning, P. J., & Lewis, T. G. (2017). Gustafson’s Law Contradicts Theory Results. Communications of the ACM, 60(4), 8. This resource will help you understand how Gustafson’s law works.