How to get the current heap size of java on linux

[wong_powah]

How to get the current heap size of java on linux?

 

[wong_powah]

How to get the current heap size of java on linux?

# java -version
java version "1.6.0_02"
Java(TM) SE Runtime Environment (build 1.6.0_02-b05)
Java HotSpot(TM) Server VM (build 1.6.0_02-b05, mixed mode)

 

[Jason Cavett]

How to get the current heap size of java on linux?

I could be wrong, but IIRC, passing the flag -verbosegc to the JRE
will output the current heap size whenever the garbage collector is
run. That's just off the top of my head, though...not sure if it's
true.

 

[Real Gagnon]

# java -version
java version "1.6.0_02"
Java(TM) SE Runtime Environment (build 1.6.0_02-b05)
Java HotSpot(TM) Server VM (build 1.6.0_02-b05, mixed mode)

By using the java.lang.management API
http://java.sun.com/javase/6/docs/api/java/lang/management/package-
summary.html

By using an external JMX utility, ex. jconsole
http://java.sun.com/javase/6/docs/technotes/guides/management/jconsole.html

Good Luck.

 

[wong_powah]

By using the java.lang.management APIhttp://java.sun.com/javase/6/docs/api/java/lang/management/package-
summary.html

By using an external JMX utility, ex. jconsolehttp://java.sun.com/javase/6/docs/technotes/guides/management/jconsol...

Good Luck.
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Real Gagnon from Quebec, Canada
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I am looking for a command line tool.
Is this the best way?
ps -ef|grep java
jmap -heap <pid>

 

[Real Gagnon]

By using the java.lang.management

I am looking for a command line tool.
Is this the best way?
ps -ef|grep java
jmap -heap <pid>

Yep, jmap is the command line utility provided by the JDK1.6 for memory
related statistics.

http://java.sun.com/javase/6/webnotes/trouble/TSG-VM/html/gbdid.html

Bye.