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Exploring Issues of Operating Systems Structuring: from Microkernel to Extensible Systems

机译:探索操作系统结构化的问题:从微内核到可扩展系统

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摘要

The microkernel concept has once been the most advocated approach for operating system development. Unfortunately, before its publicized advantages have been fully realized in an operating system implementation, current operating system researchers claim its weaknesses and make their ways to develop "extensible" operating systems. New operating systems like SPIN, Ageis, Cache Kernel, Apertos and Scout, employ new concepts to support application specific customization and optimal allocation of system resource, in order to boost up the performance of certain applications. The microkernel concept in itself never contradicts with this purpose, as it is to provide basic efficient primitives for construction of system services. Probably, the crucial problem is that the OS architecture of most current microkernel implementations cannot suitably meet with the new requirements of extensibility. In this paper, we try to explore issues in developing a better OS architecture that can fully enhance OS extensibility. Moreover, we investigate how microkernel abstraction can be remodeled to support better reconfiguration in operating systems. To cope with the conflicting issues of efficiency, flexibility and ease of reconfiguration, we suggest and discuss an approach of structuring operating systems. The approach is characteristed by lightweight meta-abstraction mechanism and progressive reflective reconfiguration.
机译:微内核概念曾经是操作系统开发中最受提倡的方法。不幸的是,在操作系统实现中完全实现其公开优势之前,当前的操作系统研究人员宣称其弱点,并设法开发“可扩展”操作系统。 SPIN,Ageis,缓存内核,Apertos和Scout等新操作系统采用新概念来支持特定于应用程序的自定义和系统资源的最佳分配,以提高某些应用程序的性能。微内核概念本身从不与该目的相抵触,因为它是为构建系统服务提供基本有效的原语。可能的关键问题是,当前大多数微内核实现的OS体系结构都无法适当满足可扩展性的新要求。在本文中,我们尝试探索开发更好的OS体系结构以完全增强OS扩展性的问题。此外,我们研究了如何对微内核抽象进行重塑以支持操作系统中更好的重配置。为了解决效率,灵活性和易于重新配置之间相互矛盾的问题,我们建议并讨论了构建操作系统的方法。该方法的特点是轻量级的元抽象机制和渐进式反射重新配置。

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