gem5 is an open-source computer architecture simulator. It provides a framework for modeling and simulating various aspects of computer systems, including processors, memory hierarchies, interconnects, and peripheral devices. gem5 allows researchers, developers, and computer architects to evaluate the performance and behavior of different hardware designs, system configurations, and software workloads.

The objective of this blog series is to provide a helpful introduction to working with gem5, complementing its official documentation and tutorial.