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引用计数与时间戳的混合垃圾搜集器算法
引用本文:张宁,熊光泽.引用计数与时间戳的混合垃圾搜集器算法[J].电子科技大学学报(社会科学版),2010(4).
作者姓名:张宁  熊光泽
作者单位:电子科技大学计算机学院;
基金项目:国家863计划(2006AA01Z137)
摘    要:实时垃圾搜集器(GC)的任务是及时回收系统中无用内存,并保证实时任务不超过其时限,在此基础上还应尽可能降低系统内存需求。提出了引用计数与时间戳的混合GC算法,用引用计数算法回收非循环垃圾,用时间戳算法回收循环垃圾,并参与系统并发调度。不仅能回收全部无用内存,与标记清除混合GC相比还可进一步降低系统内存需求,该算法适用于大规模系统。

关 键 词:算法  垃圾搜集器  内存需求  实时  时间戳  

Hybrid Garbage Collection of Reference Counting and Timestamp
ZHANG Ning , XIONG Guang-ze.Hybrid Garbage Collection of Reference Counting and Timestamp[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2010(4).
Authors:ZHANG Ning  XIONG Guang-ze
Institution:ZHANG Ning , XIONG Guang-ze (School of Computer Science , Engineering,University of Electronic Science , Technology of China Chengdu 610054)
Abstract:Real-time garbage collection should collect unused memory and guarantee real-time tasks to meet their deadlines. Furthermore,system memory requirement should be considered. A hybrid garbage collection is proposed in this paper. Reference counting algorithm is used to collect acyclic garbage and timestamp algorithm is used to collect cyclic garbage. GC and real-time tasks are scheduled concurrently. The proposed GC not only collects all unused memory but also reduces memory requirement compared with hybrid G...
Keywords:algorithms  garbage collection  memory requirements  real-time  timestamp  
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