JVM三色标记读写屏障的相关内容

JVM 三色标记法与读写屏障

三色标记法GC 垃圾回收器其主要的目的是为了实现内存的回收，在这个过程中主要的两个步骤就是：内存标记，内存回收。三色标记法简介三色标记法，主要是为了高效的标记可被回收的内存块。三色标记（Tri-color Marking）作为工具来辅助推导，把遍历对象图过程中遇到的对象，按照“是否访问...

JVM 三色标记法与读写屏障（下）

漏标和多标对于错标其实细分出来会有两种情况，分别是：漏标和多标多标-浮动垃圾如果标记执行到 E 此刻执行了 object.E = null在这个时候， E/F/G 理论上是可以被回收的。但是由于 E 已经变为了灰色了，那么它就会继续执行下去。最终的结果就是不会将他们标记为垃圾对象，在本轮标记中存活。...

JVM 三色标记法与读写屏障（上）

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更新时间 2023-01-14 18:08:15

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