jhat

Java Heap Analysis Tool.

• Analyze a heap dump (from jmap), view via http on port 7000:

jhat {{dump_file.bin}}

• Analyze a heap dump, specifying an alternate port for the http server:

jhat -p {{port}} {{dump_file.bin}}

• Analyze a dump letting jhat use up to 8GB RAM (2-4x dump size recommended):

jhat -J-mx8G {{dump_file.bin}}