Applications of a Queueing Network Model for a Computer System
ACM Computing Surveys (CSUR)
The Operational Analysis of Queueing Network Models
ACM Computing Surveys (CSUR)
Measurement and analysis for computer performance evaluation.
Measurement and analysis for computer performance evaluation.
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A case study of short-range ADP capacity planning is presented and related to the process of long-range planning. Short-range capacity planning is concerned with identification of computer and communication resources which will reach saturation levels in the near future. The initial step in the short-range planning process is to evaluate the performance of the user's current system configuration and one or more configuration enhancements with respect to their effectiveness in supporting a projected workload. Central to long-range planning is the evaluation of a broader range of architectural alternatives, including various distributed processing design. In both short range and long range planning, system modeling is a basic tool for evaluating alternatives. An analytic network of queues model has been developed to reflect both centralized and hierarchically distributed network architectures. The application of the tool as part of the short-range case study is described.