linux server jre jcmd

jcmd

sudo /usr/lib/jdk1.8.0_92/bin/jcmd

JFR.stop
JFR.start
JFR.dump
JFR.check
VM.native_memory
VM.check_commercial_features
VM.unlock_commercial_features
ManagementAgent.stop
ManagementAgent.start_local
ManagementAgent.start
GC.rotate_log
Thread.print
GC.class_stats
GC.class_histogram
GC.heap_dump
GC.run_finalization
GC.run
VM.uptime
VM.flags
VM.system_properties
VM.command_line
VM.version
# 是threaddump
Thread.print
# 
sudo /usr/lib/jdk1.8.0_92/bin/jcmd 9750 JFR.start name=MyRecording settings=profile delay=20s duration=2m filename=myrecording.jfr
# 用java mission control运行jfr文件
sudo /usr/lib/jdk1.8.0_92/bin/jcmd 9750 VM.unlock_commercial_features