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The Computer Journal 1986 29(6):522-526; doi:10.1093/comjnl/29.6.522
© 1986 by British Computer Society
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Analysing the Impact of Adding a New Software System on Main Memory Usage

R. R. Levary1 * and W. D. Edwards2 §

1 Department of Management Sciences, St Louis University, St Louis, Mo 63108, USA, 2 Citicorp Person-to-Person, Inc., St Louis, MO 63141, USA

Most computers utilise several software systems, each needing a certain memory allocation. The purpose of this study is to analyse the impact of memory allocation to different software systems on memory utilisation. Adding a new software system causes an increase in memory utilisation. Simulation is used to determine the necessary increase in memory capacity needed to accommodate the addition of a given new software system while keeping the memory utilisation at a desirable level.

A simulation of the main memory of the computer system of a large manufacturing organisation is described. The impact of adding a new software package (namely CICS) on average memory usage is analysed.

Received December 1984.

* Department of Management Sciences, St Louis University, St Louis, Mo 63108, U.S.A.

§ Citicorp Person-to-Person, Inc., St Louis, MO 63141, U.S.A.

To whom correspondence should be addressed.


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