非受限任务优先级逆转防范方法  

The Preventive Methods for Non-controlled Priority Inversion

作　　者：徐德[1] 

机构地区：[1]中国人民银行乌鲁木齐中心支行,新疆乌鲁木齐834002

出　　处：《中国西部科技》2011年第12期39-40,共2页Science and Technology of West China

摘　　要：本文分析了实时系统中不受限任务优先级逆转问题和传统的预防策略。基于抢占阈值实时调度策略,提出一种避免优先级逆转的新方法,并重新定义了抢占阈值下优先级逆转问题及避免协议,有效提高了任务的可调度性。To avoid non-controlled Priority Inversion in the process of priority-driven tasks scheduling,a new preventive methods based on the preemption threshold scheduling theory was proposed by the analysis of the questions of the non-controlled Priority Inversion and traditional preventive methods.The problem of Priority Inversion and priority inheritance protocols as well as priority ceiling protocol were redefined.

关 键 词：实时系统 实时调度策略 优先级逆转 

分 类 号：TP316[自动化与计算机技术—计算机软件与理论]