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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?
I'm interested in something that can take an input .hprof file, crunch it and generate reports.
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.
Preferably scriptable so I could run a bunch at once.
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We will first start the Memory Analyzer Tool and open the heap dump file. In Eclipse MAT, two types of object sizes are reported: Shallow heap size: The shallow heap of an object is its size in the memory. Retained heap size: Retained heap is the amount of memory that will be freed when an object is garbage collected.
If you have a heap dump file saved on your local system, you can open the file in Java VisualVM by choosing File > Load from the main menu. Java VisualVM can open heap dumps saved in the . hprof file format. When you open a saved heap dump, the heap dump opens as a tab in the main window.
Eclipse Memory Analyzer does everything you need.
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You can use jhat to parse/navigate the memory dump of an .hprof file.
$ jhat heapdump.hprof Reading from heapdump.hprof... Started HTTP server on port 7000 Server is ready. The tool comes with the JDK.
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