Java虚拟机垃圾收集器的性能分析与调节

ANALYSIS AND TUNING OF PERFORMANCE OF THE GARBAGE COLLECTOR IN JAVA VIRTUAL MACHINE

垃圾收集器是Java虚拟机 (JVM)的核心组成部分之一 ,对Java虚拟机的性能有非常重要的影响。本文将介绍GC的工作原理以及对象回收算法 ,重点介绍JVM的分段回收技术 ;剖析JVM自带的GC性能分析工具 ;阐述如何通过命令行参数调节GC的运行 ,提高GC的效率。

Garbage Collector is a core part of Java Virtual Machine(JVM) and work greatly on performance of JVM.In this paper,the principle on Garbage Collector and the algorithm of garbage collection is presented.A thorough analysis of generational collection technology and the tool for garbage collection efficiency is performed.Furthermore,we explain that how to tune Garbage Collector by command line parameter to improve garbage collection efficiency.