TLDR
Enter a command. For example: rsync, hg update, iconv, git mergetool.

jhat

 
Java Heap Analysis Tool. More information: https://docs.oracle.com/javase/8/docs/technotes/tools/unix/jhat.html.
 
  • 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 8 GB RAM (2-4x dump size recommended):
     
    jhat -J-mx8G {{dump_file.bin}}

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