共享内存多机UNIX系统中的临界资源管理

The Management of Critical Resource in UNIX System on Multiprocessors With Shared Memory

UNIX从单处理机发展到多处理机,核心中的临界资源管理是一个主要问题。使用信号量管理临界资源的互斥使用是一种主要的和有效的方法。本文描述了信号量的定义,共享内存多机UNIX 核心中常用的几种信号量的类型和算法。

With the development of UNIX from running on single processor to multiprocessors with shared memory,the management of critical resource becomes the focus,and the use of semaphore is the major and effective method to manage the exclusive use of critical resource.This paper descri- bes the definition of semaphore,its type and algorithm which may be used in UNIX kernel running on multiprocessors with shared memory and its use in CONVEX UNIX.