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文章 2022-06-30 来自：开发者社区

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，存活的对象就会被送到老年代。老年代很快被填满，触发 Full GC。老年代的内存空间远大于新生代，进行一次Ful....

文章 2019-12-25 来自：开发者社区

JVM 垃圾回收揭秘附常见面试题解析

JVM 垃圾回收常见面试题问题答案在文中都有提到如何判断对象是否死亡（两种方法）。简单的介绍一下强引用、软引用、弱引用、虚引用（虚引用与软引用和弱引用的区别、使用软引用能带来的好处）。如何判断一个常量是废弃常量如何判断一个类是无用的类垃圾收集有哪些算法，各自的特点？ HotSpot 为什么要分为新生代和老年代？常见的垃圾回收器有那些？介绍一下 CMS,G1 收集器。 Minor ....

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更新时间 2024-03-04 11:17:27

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