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tldr/pages/common/jhat.md
Peter Tripp f8d9ee3a35 Add jhat example with larger memory limit.
2016-02-16 16:32:26 -08:00

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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}}