一种可靠高效的回卷恢复实现方法  

A Robust and Efficient Rollback Recovery Implementation Scheme

作　　者：杨金民[1] 张大方[1] 黎文伟[1] 

机构地区：[1]湖南大学软件学院,湖南长沙410082

出　　处：《电子学报》2006年第2期237-240,共4页Acta Electronica Sinica

基　　金：国家自然科学基金(No.NSFC60473031);湖南省自然科学基金(No.05JJ30116)

摘　　要：本文针对现有用户级进程检查点实现中的线程挂起点不确定性问题提出一种基于线程自挂的解决方案.另外,为了降低分布式回卷恢复开销,本文提出一个多线程化的回卷恢复实现基架.基于所提回卷恢复策略,开发了一个回卷恢复试验床W INDAR.试验结果表明,多线程化实现策略能够显著提高悲观消息日志协议性能.This paper addresses the issue of nondeterminacy of thread suspension point in user-level process checkpointing, and proposes a solution to it. In addition, the workloads of a process are multithreaded in terms of rollback recovery to exploit effectively system resources for reducing the overhead. The presented schemes are implemented in rollback recovery testbed WINDAR. Experimental results show that the presented scheme improves the performance of rollback recovery, especially for pessimistic message logging protocols.

关 键 词：检查点 进程状态 回卷恢复 多线程 

分 类 号：TP302.8[自动化与计算机技术—计算机系统结构]