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sun.tools.jmap.JMap - "jmap" Command
How to run "jmap" command from JDK tools.jar file?
✍: FYIcenter
"jmap" command allows you to dump heap memory area of a given JVM process on your computer system.
"jmap" command is supported by the lib\tools.jar JAR file JDK 1, 2, 3, 4, 5, 6, 7, and 8.
You can run the "jmap" command using the JDK tools.jar file as described below using JDK 8 as an example:
fyicenter> set JDK_HOME=\fyicenter\jdk-1.8.0_191
fyicenter> %JDK_HOME%\bin\java -cp %JDK_HOME%\lib\tools.jar sun.tools.jmap.JMap
Usage:
jmap -histo <pid>
(to connect to running process and print histogram of java object heap
jmap -dump:<dump-options> <pid>
(to connect to running process and dump java heap)
dump-options:
format=b binary default
file=<file> dump heap to <file>
Example: jmap -dump:format=b,file=heap.bin <pid>
⇒ sun.tools.jstack.JStack - "jstack" Command
⇐ sun.tools.jps.Jps - "jps" Command
2019-11-21, ∼4008🔥, 0💬
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