tldr/pages/common/jhat.md

# 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}}`
Java debug tools. Jstack, jmap and jhat. 2016-02-16 11:27:52 -08:00			`# 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}}`
Add jhat example with larger memory limit. 2016-02-16 16:32:26 -08:00
			`- Analyze a dump letting jhat use up to 8GB RAM (2-4x dump size recommended):`

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