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Lookup NU author(s): Emeritus Professor Isi Mitrani
A stochastic model of a priority multiprogramming computing system is analysed in the steady state. A version of the model in which preemption of input/output operations is allowed and one in which it is not allowed and considered. Expressions for the central processor utilisation factor and for the average residence-in-the-system times are obtained. The relative merits of the two types of systems and the problem of efficient allocation of priorities to jons with different CPU and I/O requirements are discussed, using the results for some special cases as illustration.
Author(s): Mitrani I
Publication type: Report
Publication status: Published
Series Title: Computing Laboratory Technical Report Series
Year: 1972
Pages: 25
Print publication date: 01/01/1972
Source Publication Date: 1972
Report Number: 41
Institution: Computing Laboratory, University of Newcastle upon Tyne
Place Published: Newcastle upon Tyne
URL: http://www.cs.ncl.ac.uk/publications/trs/papers/41.pdf
