2016-02-16 19:27:52 +00:00
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# jhat
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2022-10-11 03:59:50 +01:00
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> Java heap analysis tool.
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2021-07-26 17:52:14 +01:00
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> More information: <https://docs.oracle.com/javase/8/docs/technotes/tools/unix/jhat.html>.
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2016-02-16 19:27:52 +00:00
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2021-08-15 18:59:09 +01:00
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- Analyze a heap dump (from `jmap`), view via HTTP on port 7000:
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2016-02-16 19:27:52 +00:00
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`jhat {{dump_file.bin}}`
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- Analyze a heap dump, specifying an alternate port for the http server:
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`jhat -p {{port}} {{dump_file.bin}}`
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2016-02-17 00:32:26 +00:00
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2021-08-15 18:59:09 +01:00
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- Analyze a dump letting `jhat` use up to 8 GB RAM (2-4x dump size recommended):
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2016-02-17 00:32:26 +00:00
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`jhat -J-mx8G {{dump_file.bin}}`
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