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Properties of the working-set model
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Communications of the ACM archive
Volume 15 ,  Issue 3  (March 1972) table of contents
Pages: 191 - 198  
Year of Publication: 1972
ISSN:0001-0782
Authors
Peter J. Denning  Princeton Univ., Princeton, NJ
Stuart C. Schwartz  Princeton Univ., Princeton, NJ
Publisher
ACM  New York, NY, USA
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Downloads (6 Weeks): 7,   Downloads (12 Months): 50,   Citation Count: 54
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ABSTRACT

A program's working set W(t, T) at time t is the set of distinct pages among the T most recently referenced pages. Relations between the average working-set size, the missing-page rate, and the interreference-interval distribution may be derived both from time-average definitions and from ensemble-average (statistical) definitions. An efficient algorithm for estimating these quantities is given. The relation to LRU (lease recently used) paging is characterized. The independent-reference model, in which page references are statistically independent, is used to assess the effects of interpage dependencies on working-set size observations. Under general assumptions, working-set size is shown to be normally distributed.


REFERENCES

Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

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Belady, L. A study of replacement algorithms for virtual storage computers. IBM Syst. J. 5, 2 (1966), 78-101.
 
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Brawn, B., and Gustavson, F. Program behavior in a paging environment. Proc. AFIPS 1968 FJCC Vol. 33, Pt. 2, AFIPS Press, Montvale, N.J., pp. 1019-1032.
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Doherty, W. Scheduling TSS/360 for responsiveness. Proc. AFIPS 1970 FJCC Vol. 37, AFIPS Press, Montvale, N.J., pp. 97-112.
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Liptay, J. The cache, lBMSyst. J. 7, 1 (1968), 15-21.
 
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Mattson, R., Gecsei, J., Slutz, D., and Traiger, I. Evaluation techniques for storage hierarchies. IBM Syst. J. 9, 2 (1970), 78-117.
 
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Rosenblatt, M. A central limit theorem and a strong mixing condition. Proc. Nat. Acad. Sci. 42 (1956), 43-47.
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Yaglom, A.M. Stationary Random Functions. Prentice-Hall, Englewood Cliffs, N.J., 1962.
 
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Weizer, N., and Oppenheimer, G. Virtual memory management in a paging environment. Proc. 1969 SJCC Vol. 34, AFIPS Press, Montvale, N.J., p. 234.

CITED BY  54

Collaborative Colleagues:
Peter J. Denning: colleagues
Stuart C. Schwartz: colleagues