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writes performance counter information to /tmp/hsperfdata_user/[pid]. jvmstat is enabled in a jvm with -xx:+useperfdata (on by default). to access the data remotely, jstatd needs to be running on the remote system and need have the permissions to read the data. jps and jstat read these files. jstat prints
commands. popular commands: vm.version, vm.system_properties, vm.flags, gc.class_histogram, gc.class_stats, gc.heap_dump filename=dump, thread.print, jfr.start name=rec settings=profile duration= m filename=rec.jfr, jfr.check, jfr.stop, jfr.dump name=rec filename=rec.jfr jcmd [pid] perfcounter.print prints...
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