Operating System Supports for Distributed Multimedia Systems

在本研究中，我们研究了多媒体应用程序所需的操作系统支持。我们在CMU、庆应义乌大学和日本先进科学技术研究所共同开发的Real-Time Mach上开发了网络服务器和存储系统。实时MACH提供实时设施，使应用程序能够满足时间限制。这些设施适合支持多媒体应用。我们还扩展了实时Mach以支持动态QOS控制。当多个多媒体应用同时运行时，需要动态的QOS控制。它使我们能够非常灵活地控制这些应用程序。

In this research, we investigated operating system supports which are required for multimedia applications. We developed a network server and a storage system on Real-Time Mach Which has been developed by CMU,Keio University and Japan Advanced Institute of Science and Technology. Real-Time Mach provides real-time facilities which enables applications to satisfy timing constraints. The facilities are suitable for supporting multimedia applications. We also extended Real-Time Mach for supporting dynamic QOS control. The dynamic QOS control is required when several multimedia applications run simultaneously. and it enables us to control these applications very flexibly.