Predicting the CPU availability of time-shared Unix systems on the computational grid

Focuses on the problem of making short- and medium-term forecasts of CPU availability on time-shared Unix systems. We evaluate the accuracy with which availability can be measured using the Unix load average, the Unix utility "vmstat" and the Network Weather Service (NWS) CPU sensor that u...

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Bibliographic Details
Published inProceedings of the IEEE International Symposium on High Performance Distributed Computing pp. 105 - 112
Main Authors Wolski, R., Spring, N., Hayes, J.
Format Conference Proceeding Journal Article
LanguageEnglish
Published IEEE 1999
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Summary:Focuses on the problem of making short- and medium-term forecasts of CPU availability on time-shared Unix systems. We evaluate the accuracy with which availability can be measured using the Unix load average, the Unix utility "vmstat" and the Network Weather Service (NWS) CPU sensor that uses both. We also examine the autocorrelation between successive CPU measurements to determine their degree of self-similarity. While our observations show a long-range autocorrelation dependence, we demonstrate how this dependence manifests itself in the short- and medium-term predictability of the CPU resources in our study.
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ISBN:0780356810
9780780356818
ISSN:1082-8907
DOI:10.1109/HPDC.1999.805288