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399 B
399 B
jmap
Java Memory Map Tool.
- Print shared object mappings for a java process (output like pmap):
jmap {{java_pid}}
- Print heap summary information:
jmap -heap {{filename.jar}} {{java_pid}}
- Print histogram of heap usage by type:
jmap -histo {{java_pid}}
- Dump contents of the heap into a binary file for analysis with jhat:
jmap -dump:format=b,file={{filename}} {{java_pid}}