Performance degradation due to multiprogramming and system overheads in real workloads - Case study on a shared memory multiprocessorThe performance degradation due to the multiprogramming (MP) overhead in a parallel execution environment is quantified. In addition, total system overhead is also measured. A methodology, which estimates the MP overhead present in real workloads, is illustrated with real measurents. It is found that MP overhead usually consumes between 10 and 23 percent of the processing power available to parallel programs. The mean MP overhead is determined to be 16 percent which is well over half the total system overhead executed on the system (the mean system overhead is determined to be 24 percent of the processing power). It is found that MP overhead, total system overhead, and application completion time are all moderately correlated.
Document ID
19900057804
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Dimpsey, R. T. (Illinois Univ. Urbana, IL, United States)
Iyer, R. K. (Illinois, University Urbana, United States)