A measurement-based approach for characterizing concurrency present in a workload is developed, and the effect of this concurrency on system performance indices such as cache miss rate and bus activity is quantified. Hardware and software instrumentation of an Alliant FX/8 was used to obtain data from a real workload environment. Results show that 35% of the workload is concurrent, with the concurrent periods typically using all available processors. Probability of a cache miss is seen to increase with concurrency. Regression models are developed to quantify the relationships between cache miss rate, bus activity, and the concurrency measures.

Original languageEnglish (US)
Title of host publicationProceedings of the International Conference on Parallel Processing
EditorsSartaj K. Sahni
PublisherPennsylvania State Univ Press
Number of pages8
ISBN (Print)0271006080
StatePublished - 1987
EventProc Int Conf Parallel Process 1987 - Universal Park, PA, USA
Duration: Aug 17 1987Aug 21 1987


OtherProc Int Conf Parallel Process 1987
CityUniversal Park, PA, USA

ASJC Scopus subject areas

  • Hardware and Architecture


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