Design and Implementation of Real-Time Scheduler in Real-Time Mach

A micro kernel-based operating system architecture is becoming common for advanced distributed computing systems. However, a current microkernel lacks the support of realtime facilities such as a real-time scheduling and synchronization. These facilities are very important for future operating systems to support audio and video. Real-Time Mach provides real-time facilities to make real-time application easily. Especially, processor scheduling plays a key role to manage the system resource in a timely fashion. In this paper, we describe the real-time scheduling facilities in Real-Time Mach and the implementation and the performance evaluation. 1 Introduction Micro kernel-based distributed operating systems are becoming common for advanced distributed computing systems. A micro kernel provides basic resource management functions such as processor scheduling, memory object management, IPC facility, and low-level I/O support [3, 13, 2, 11]. Traditional operating functions such as file sys..