混合实时事务的接纳控制机制ACMHRTT  

Admission Control Mechanism for Hybrid Real-Time Transactions: ACMHRTT

作　　者：白似雪[1] 曹重华[1] 程春雷[1] 肖水晶[1] 邬昌兴[1] 

机构地区：[1]南昌大学计算机科学与技术系,南昌330029

出　　处：《计算机科学》2004年第11期124-125,134,共3页Computer Science

摘　　要：提出了一种含有实时和非实时两部分的混合实时事务接纳控制机制ACMHRTT(Admission Control Mech-anism for Hybrid Real-Time Transactions)。ACMHRTT将混合事务分为真实时和非实时两部分,综合考虑混合事务的执行需求和价值,目的是为保留系统资源,有效控制负载,减少了被系统接纳执行后而又不能满足截止期的事务,提高实时数据库系统事务处理的成功率和可靠性,使系统收益最大化。着重分析了ACMHRTT的模型,对ACMHRTT与传统的ACM作了分析比较,说明了比传统的ACM协议更优,并提出了须进一步研究的问题。A new admission control mechanism,for hybrid real-time transactions consisting of both genuine real-time and non-real-time parts (ACMHRTT), is put forward. ACMHRTT considers both the executing requirement and the value of hybrid real-time transactions. In order to maximize system profit,it reserves system resources and controls effectively system load, by reducing the number of transactions being accepted for execution but not able to come to its deadline. This paper emphasizes on analyzing ACMHRTT model, comparing ACMHRTT with traditional admission control mechanism. In addition,it suggests some research to be clone later.

关 键 词：实时事务 接纳控制 截止期 实时数据库系统 系统资源 事务处理 Real-Time 收益最大化 机制 执行 

分 类 号：TP311.13[自动化与计算机技术—计算机软件与理论] TP393[自动化与计算机技术—计算机科学与技术]