在实时Java中使用事务性内存同步自适应垃圾收集器

Teresa Higuera-Toledano
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引用次数: 3

摘要

目前,多核系统甚至开始用于低端设备,如需要实时保证的嵌入式系统控制器。硬件事务性内存(Hardware Transactional Memory, TM)是这种体系结构的一种新的同步范式,它允许基于锁的方法出现问题,并使编程更容易。我们建议使用TM在嵌入式实时环境的上下文中同步垃圾收集器(GC)和Java应用程序的并发/并行执行。GC提供了健壮的编程和性能优势。由于在实时系统的上下文中,收集器必须保证其性能的最坏情况,因此必须限制已提交事务的最坏情况时间;我们通过限制其大小(即探索对象的大小)来实现这一点。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Using Transactional Memory to Synchronize an Adaptive Garbage Collector in Real-Time Java
Currently multicore systems start to be used even in low-end devices such as embedded systems controllers requiring real-time guarantees. Hardware Transactional Memory (TM) is a new synchronization paradigm for this architecture, allowing problems of lock-based methods and making easer programming. We propose to use TM to synchronize the concurrent/parallel execution of the Garbage Collector (GC) and Java applications, within the context of an embedded real-time environment. GC gives robust programming, and performance advantages. Since in the context of real-time systems, a collector must guarantee a worst-case in it performance, the worst-case time for a committed transaction must be limited; we achieve this by limiting its size (i.e., the size of the explored object).
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