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논문 기본 정보

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학술저널
저자정보
Lim, Jong Seul (Division of Electronics Information Communications Engineering, Sunmoon University) Park, Chul Guen (Division of Electronics Information Communications Engineering, Sunmoon Universit) Ahn, Seong Joon (Division of Electronics Information Communications Engineering, Sunmoon Universit) Lee, Seoyoung (Division of Electronics Information Communications Engineering, Sunmoon University)
저널정보
한국전산응용수학회 Journal of applied mathematics & computing Journal of applied mathematics & computing 제15권 제1호
발행연도
2004.1
수록면
511 - 525 (15page)

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we model communication and computer systems that process interactive and several and several types of background jobs. The scheduling policy in use is to share the processor among all interactive jobs and, at most, one background job of each type at a time according to the process sharing discipline. Background jobs of each type are served on a first-come-first-served basis. Such scheduling policy is called Processor Sharing with Background jobs (PSBJ). In fact, the PSBJ policy is commonly used on many communication and computer systems that allow interactive usage of the systems and process certain jobs in a background mode. In this paper, the stability conditions for the PSBJ policy are given and proved. Since an exact analysis of the policy seems to be very difficult, an approximate analytic model is proposed to obtain the average job sojourn times. The model requires the solution of a set of nonlinear equations, for which an iterative algorithm is given and its convergence is proved. Our results reveal that the model provides excellent estimates of average sojourn times for both interactive and background jobs with a few percent of errors in most of the cases considered.

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