PID-based controls in computing systems: a brief survey and some research directions

Applying controls to manage and optimise the behaviour of computers and networks is an important research field. In recent years, controllers have been gaining a role not only as add-ons to improve the efficiency of already functioning systems, but also as core components of those system themselves, and of their design. This paper provides a brief but reasoned review on the matter, evidencing the preminent role of PID-centred control solutions, and outlines some open issues for future research directions.