摘要
提出了一种嵌入式实时数据库事务处理模型 ,把抢占阈值应用到固定优先级可抢占的实时事务调度之中 ,并提出了一种冲突避免的实时事务并发控制协议 ,使实时事务调度和并发控制高度集成 ,降低了系统的事务管理开销 .通过事务的可调度性分析 。
Based on transaction′s prior knowledge a real-time tr ansaction processing model was proposed. It integrates transaction scheduling wi th offline concurrency control by preemption threshold, and has many advantages such as low er overhead, bounded priority inversion and improving schedulability. Through th e schedulability analysis the conditions of feasible transaction scheduling and an algorithm of priority and preemption threshold assignment were presented.
出处
《华中科技大学学报(自然科学版)》
EI
CAS
CSCD
北大核心
2003年第6期74-77,共4页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金资助项目 (60 0 73 0 45 )
华中科技大学计算机科学与技术学院青年基金资助项目
关键词
嵌入式实时数据库
并发控制
事务调度
抢占阈值
embedded real-time database
concurrency co ntrol
transaction scheduling
preemption threshold