snapshot dump

基本解释

Obtaining a snapshot dump: IBM runtimes
获取一个快照转储文件：IBM 运行时环境
A heap dump, also known as heap snapshot, is a dump of references between objects in memory and information about these objects.
堆转储也称为堆快照，就是内存中对象之间的参照转储，以及关于这些对象的信息。
Running this command tells the JVM to take a "heap dump snapshot" and save it to a file for processing, usually using the jhat utility (which I introduced in a previous article).
运行该命令通知 JVM 拍摄一个 “堆转储快照”，并将其保存在一个文件中以便处理，通常使用 jhat 实用工具（我在上一篇文章中介绍过）。