JVM survivor-阿里云

JVM系列之：你知道为什么要有两个 Survivor吗？关于卡表技术又有多少了解

本文为《深入学习 JVM 系列》第十三篇文章分代收集理论以下内容来源于《深入理解Java虚拟机》一文。分代收集理论实质是一套符合大多数程序运行实际情况的经验法则，它建立在两个分代假说之上：1、弱分代假说（Weak Generational Hypothesis）：绝大多数对象都是朝生夕灭的。2...

面试官：说一下jvm里面的survivor区域

jvm里面的survivor区域堆内存的区域分为年轻代和老年代，survivor是属于新生代中的划分，新生代中分为eden区和suvivor区，两者的占比为8：2,survivor分为了两个区域，suvivor0和suvivor1,主要是用于eden区内存满的时候新生代垃圾回收的时候把（eden区域...

JVM垃圾回收算法，解析新生代为什么要有两个survivor区域

复制算法复制算法将可用内存按容量划分为大小相等的两块，每次只使用其中的一块。当这一块的内存用完了，就将还存活着的对象复制到另外一块上面，然后再把已使用过的内存空间一次清理掉。☘️如果没有 survior 区会怎么样？如果没有 Survivor，Eden 区每进行一次 Minor GC，存活的对象就会...

JVM 的内存结构，Eden 和 Survivor 比例是多少？

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更新时间 2023-04-23 09:45:47

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