分析离线 Java 堆转储 (.hprof) 的工具或技巧

Tool or tricks to analyze offline Java heap dumps (.hprof)

提问by user331465

Are there any tools that allow offline analysis (including summary/sorting/sifting) of an .hprof file? Or can you run VisualVM, hat etc in batch mode?

是否有任何工具允许对 .hprof 文件进行离线分析（包括汇总/排序/筛选）？或者你可以在批处理模式下运行 VisualVM、hat 等吗？

I'm interested in something that can take an input .hprof file, crunch it and generate reports.

我对可以输入 .hprof 文件、处理它并生成报告的东西感兴趣。

I assume you would need to pass in a bunch of options to configure the report, so if you know any helpful tips, please weigh in.

我假设您需要传入一堆选项来配置报告，所以如果您知道任何有用的提示，请权衡。

Preferably scriptable so I could run a bunch at once.

最好是可编写脚本的，这样我就可以一次运行一堆。

采纳答案by user85155

Eclipse Memory Analyzerdoes everything you need.

Eclipse Memory Analyzer可以满足您的一切需求。

回答by Peter Lawrey

Can you use jmap -histo ? What sort of report are you looking to extract?

你可以使用 jmap -histo 吗？您希望提取什么样的报告？

回答by james

hard to beat yourkit java profiler. It costs money, but it is worth every penny.

很难击败yourkit java profiler。它要花钱，但每一分钱都是值得的。

回答by kohlerm

Es MAT (http://www.eclipse.org/mat/) is the way to go. Check http://kohlerm.blogspot.com/search/label/memory, especially http://kohlerm.blogspot.com/2009/07/eclipse-memory-analyzer-10-useful.html

Es MAT (http://www.eclipse.org/mat/) 是要走的路。检查http://kohlrm.blogspot.com/search/label/memory，尤其是http://kohlrm.blogspot.com/2009/07/eclipse-memory-analyzer-10-useful.html

回答by robbin

JDK6 comes with jhat which parses and creates an html report.

JDK6 带有 jhat，它解析并创建一个 html 报告。

http://docs.oracle.com/javase/6/docs/technotes/tools/share/jhat.html

http://docs.oracle.com/javase/6/docs/technotes/tools/share/jhat.html

回答by user2426263

You can use jhatto parse/navigate the memory dump of an .hproffile.

您可以使用jhat来解析/导航.hprof文件的内存转储。

$ jhat heapdump.hprof
Reading from heapdump.hprof...

Started HTTP server on port 7000
Server is ready.

The tool comes with the JDK.

该工具随 JDK 一起提供。