A performance evaluation tool for hybrid and dynamic distributed systems

A. E. S. Freitas, R. Macêdo
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引用次数: 1

Abstract

Distributed systems are usually modeled by a set of distributed processes spread over a number of networked computers. Such processes communicate and synchronize themselves by message passing through communication channels. Processes and communication channels can be characterized by synchronous or asynchronous timeliness behavior, according to the characteristics of underlying systems (operating system and communication sub-system). Unlike conventional distributed systems, the timeliness characteristics of dynamic and hybrid distributed systems may vary over time, according to the availability of resources and occurrence of failures. Such systems are becoming common today because of the increasing diversity and heterogeneity of computer networks and associated devices. Due to their high complexity, these systems are difficult to test or verify. In this paper, we introduce a novel simulation tool for such environments, where distinct fault models and timeliness properties can be dynamically assigned to processes and communication channels. Such a tool is meant not only for protocol evaluation but also for prototyping, allowing code reuse in real applications.
混合和动态分布式系统的性能评估工具
分布式系统通常由分布在许多联网计算机上的一组分布式进程来建模。这些进程通过通过通信通道传递的消息进行通信和同步。根据底层系统(操作系统和通信子系统)的特征,进程和通信通道可以具有同步或异步时效性行为的特征。与传统的分布式系统不同,动态和混合分布式系统的时效性特征可能随着时间的推移而变化,这取决于资源的可用性和故障的发生。由于计算机网络和相关设备的日益多样化和异构性,这种系统在今天变得越来越普遍。由于它们的高度复杂性,这些系统很难测试或验证。在本文中,我们为这种环境引入了一种新的仿真工具,其中不同的故障模型和时效性属性可以动态地分配给流程和通信通道。这样的工具不仅用于协议评估,还用于原型设计,允许在实际应用程序中重用代码。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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