一种机载嵌入式对称多处理机系统互斥策略  

An Airborne Embedded Symmetric Multiprocessor Systems Are Mutually Exclusive Strategies

作　　者：李娟 任晓瑞 

机构地区：[1]中国航空工业计算技术研究所十八室,陕西西安710068 [2]中国航空工业计算技术研究所三室,陕西西安710068

出　　处：《电子科技》2013年第4期60-64,共5页Electronic Science and Technology

摘　　要：针对多种商用对称多处理器(SMP)操作系统的互斥策略,重点研究了互斥策略的3个关键问题:自旋锁设计、长期互斥等失效的解决方法和死锁问题。借鉴先进的商用方法,分析不同类型共享资源的特点,设计了高效自旋锁,并在研究死锁竞争条件产生条件的基础上,提出了明确的解决方法。最后,在MPC7410平台上对系统性能进行实测,结果证明,文中互斥策略能够以小的时间开销为代价,有效提高计算机系统处理速度,在机载嵌入式计算机领域有广泛的应用前景。commercial symmetric multi-processor （SMP） operating system mutex strategy, focusing on three key issues mutually exclusive strategies： Spinlocks design, long-term mutually exclusive failure, and deadlock is- sues. Learn advanced commercial analysis of the characteristics of the different types of shared resources and design an efficient spin lock and research deadlock competitive conditions produce conditions based on a clear solution. Finally, in the MPC7410 platform on system performance measurement, the results proved mutually exclusive strategies, small time overhead cost of effectively improve the processing speed of a computer system, a wide range of applica- tions in the the airborne embedded computer field.

关 键 词：多机操作系统 短期互斥 自旋锁 长期互斥 

分 类 号：TP316[自动化与计算机技术—计算机软件与理论]