Preferred Embodiment of a Hardware-Assisted Garbage-Collection System

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1992-11-18
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Nilsen, Kelvin
Schmidt, William
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Computer Science

Computer Science—the theory, representation, processing, communication and use of information—is fundamentally transforming every aspect of human endeavor. The Department of Computer Science at Iowa State University advances computational and information sciences through; 1. educational and research programs within and beyond the university; 2. active engagement to help define national and international research, and 3. educational agendas, and sustained commitment to graduating leaders for academia, industry and government.

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The Computer Science Department was officially established in 1969, with Robert Stewart serving as the founding Department Chair. Faculty were composed of joint appointments with Mathematics, Statistics, and Electrical Engineering. In 1969, the building which now houses the Computer Science department, then simply called the Computer Science building, was completed. Later it was named Atanasoff Hall. Throughout the 1980s to present, the department expanded and developed its teaching and research agendas to cover many areas of computing.

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1969-present

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Hardware-assisted garbage collection combines the potential of high average-case allocation rates and memory bandwidth with fast worst-case allocation, fetch, and store times. This paper describes an architecture that allows memory fetch and store operations to execute, on the average, nearly as fast as traditional memory. It describes a feasible implementation of a garbage-collected memory module, but does not provide a thorough discussion of possible design alternatives, nor does it provide rigorous justification for choices between available design alternatives.

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