Type of Document	Master's Thesis
Author	Nelson, Jeffrey Ernest
URN	etd-06102012-040603
Title	Automatic, incremental, on-the-fly garbage collection of actors
Degree	Master of Science
Department	Computer Science and Applications
Advisory Committee	Advisor Name Title Kafura, Dennis G. Committee Chair Arthur, James D. Committee Member Henry, Sallie M. Committee Member
Keywords	Parallel processing (Electronic computers)
Date of Defense	1989-02-15
Availability	restricted
Abstract Garbage collection is an important topic of research for operating systems, because applications are easier to write and maintain if they are unburdened by the concerns of storage management. The actor computation model is another important topic: it is a powerful, expressive model of concurrent computation. This thesis is motivated by the need for an actor garbage collector for a distributed real-time system under development by the Real-Time Systems Group at Virginia Tech. It is shown that traditional garbage collectors—even those that operate on computational objects—are not sufficient for actors. Three algorithms, with varying degrees of efficiency, are presented as solutions to the actor garbage collection problem. The correctness and execution complexity of the algorithms is derived. Implementation methods are explored, and directions for future research are proposed.
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