Application of queueing models to multiprogrammed computer systems operating in a time-critical environment
Dave E. Eckhardt, United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch, Langley Research Center
National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1979 - Science - 19 pages
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actual CPU service ae-sF AE(V application of queueing approximate service distribution arrival finds average CPU service background applications background interval background machine background processing capability background task begins batch and interactive Batch CPU CPU is viewed CPU queue length CPU service rate CPU utilization deterministic distribution of service event that server existing queueing models expected system response expected value exponential distribution exponential server frame interval given by equation holding stage idle virtual server Langley Research Center load leveling M/M/l queueing system NASA number of frames overhead Performing Organization periodic interrupts Pr[EB presence of time-critical probability density function product uF quantum interval queueing system subject Queueing theory random variable receive CPU service receive service required CPU service server is subject server with parameter service time random single-server queueing facility STATE-OF-THE-ART QUEUEING MODELS time-critical activity TIME-CRITICAL CPU ALLOCATION Time-Critical Environment time-critical load time-critical process time-critical system time-critical task virtual service begins