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首页> 外文期刊>電子情報通信学会技術研究報告. 信賴性. Reliability >Markovian Software Performability Modeling with User-Perceived Performance Degradation
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Markovian Software Performability Modeling with User-Perceived Performance Degradation

机译：Markovian软件可操作性建模与用户感知性能下降

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摘要

This paper constructs the software performability model with performance degradation. We assume that the software system has two operational states from the viewpoint of the end users: one is operating with the desirable performance level according to specification and the other is with degraded performance level. The time-dependent behavior of the system alternating between up and down states is described by the Markovian software availability model with performance degradation. Assuming that the arrival process of the tasks follows a nonhomogeneous Poisson process, we analyze the distribution of the number of tasks whose processes can be completed with the infinite server queueing model, and derive several software performability measures considering the real-time property. Finally, we illustrate several numerical examples of the measures to investigate the impact of consideration of the performance degradation on the system performability evaluation.
机译：本文构建了具有性能下降的软件可执行模型。 我们假设软件系统从最终用户的角度有两个运行状态：一个是根据规范的理想性能水平运行，另一个是具有劣化性能水平。 Markovian软件可用性模型与性能下降描述了上下状态之间交替的系统交替的时间依赖行为。 假设任务的到达过程遵循非均匀泊松过程，我们分析了可以使用无限服务器排队模型完成过程完成的任务数的分布，并考虑实时属性的多个软件可执行性措施。 最后，我们说明了措施的若干数值例子，以研究考虑性能劣化对系统性能评估的影响。

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