User-level Real-Time Network System on Microkernel-basedOperating Systems

Authors:
Tatsuo Nakajima;Hideyuki Tokuda
Affiliations:
Japan Advanced Institute of Science and Technology, Japan/ tatsuo@jaist.ac.jp;Faculty of Environmental Information, Keio University, Japan/ hxt@sfc.keio.ac.jp
Venue:
WPDRTS Selected papers from the 4th workshop on Parallel and distributed real-time systems
Year:
1998

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Abstract

This paper presents the design and implementation ofa user-level real-time network system in Real-Time Mach. Traditionalnetwork systems for microkernel based operating systems, whichtend to focus on high performance and flexibility, are not suitablefor real-time communication. Our network system provides a frameworkfor implementing real-time network protocols which require tobound protocol processing time, and it is suitable for implementingon microkernel based operating systems. In this paper, we especiallyfocus on the aspects to avoid the priority inversion problemin order to make network systems more preemptable and predictable.We also describe the feasibility of our network system for buildingdistributed multimedia systems.