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tldr/pages/common/jhat.md

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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}}`