基于PC平台的Unix系统的多媒体实时性策略

REAL-TIME STRATEGIES FOR PC BASED MULTIMEDIA UNIX SYSTEMS

文中结合我们在ＡＴ＆Ｔ的ＵｎｉｘＳＶＲ４．２／３８６及ＵｎｉｘＷａｒｅ操作系统扩充多媒体功能的经验，讨论基于ＰＣ平台的Ｕｎｉｘ操作系统的多媒体子系统的实时性策略．针对不同媒体，讨论进程优先级、睡眠优先级、中断优先级以及处理器优先级的设置方法，最后还简介了多媒体的实时调度方案．

With the experiences of extending multimedia functions to AT & T Unix SVR 4 2/386 and UnixWare operating systems,the real time strategies for PC based multimedia unix systems are discussed.As to different media,the different methods in setting process priority,sleep priority,interrupt priority and CPU priority are also discussed.Finally, a multimedia realtime scheduling approach is presented.