Performance modeling and empirical measurements in a system designed for batch and time-sharing users

Shemer, J. E.; Heying, Douglas W.

doi:10.1145/1478559.1478562

Cited by 11 publications

(2 citation statements)

References 4 publications

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“…Real suecess in the applieation of simple models to the performanee analysis of complex systems has been reported in [2][3][4][5]. The simple cyclic-server multiprogramming system model developed here has structural similarity to the central-server model oi' Buzen [3] and employs the exponential serviee process assumptions that have been demonstrated by both Shemer and Heying [4] and Kimbleton and Moore 15] to give good overall statistical performance predictions even though the particular service processes in question are demonstrably nonexponential [5].…”

mentioning

confidence: 94%

“…The simple cyclic-server multiprogramming system model developed here has structural similarity to the central-server model oi' Buzen [3] and employs the exponential serviee process assumptions that have been demonstrated by both Shemer and Heying [4] and Kimbleton and Moore 15] to give good overall statistical performance predictions even though the particular service processes in question are demonstrably nonexponential [5]. A priority control structure similar to that of HETM is postulated by Wulf [6].…”

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confidence: 97%

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An analytic model of the HASP execution task monitor

Strauss

1974

Commun. ACM

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The HASP Execution Task Monitor periodically rearranges the OS/360 dispatching chain to give tasks preemptive execution priority in inverse order to that of their cpu utilization history. The effect is to keep the I/O bound tasks active and to prevent cpu bound tasks from locking out other tasks. This paper develops a simple model of the Execution Task Monitor and employs it to study the effectiveness of the monitor in improving system performance. A modified strategy for monitor control is investigated for the case of task execution in a memory heirarchy of varying speeds.

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