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Study_Java_HotSpot_JavaCommand

HotSpot Java Command

Updated Dec 1, 2013 by jht5...@gmail.com

jcmd <pid> <command> ...

Sample:
$ jcmd

$ jcmd <pid> help

$ jcmd <pid | main class> <command | PerfCounter.print | -f filename>

jcmd命令列表：

命令名	成本	说明
`help`	`N/A`	帮助
`ManagementAgent.stop`
`ManagementAgent.start_local`
`ManagementAgent.start`
`Thread.print`
`GC.class_histogram`
`GC.heap_dump`
`GC.run_finalization`
`GC.run`
`VM.uptime`
`VM.flags`
`VM.system_properties`
`VM.command_line`
`VM.version`
`VM.commercial_features`
`JFR.stop`
`JFR.start`
`JFR.dump`
`JFR.check`