runtime JVM options

[Y Srinivas Ramakrishna]

% ${JDK}/bin/jinfo -flags <pid>

It should give you a list of the specified C.L. options like so:

-XX:+UseConcMarkSweepGC -XX:+PrintGCTimeStamps -XX:+PrintGCDetails -Xmx2g

If you want the value of a specific flag that you did not specify on
the command line, you can ask:

% ${JDK}/bin/jinfo -flag -flag CMSMarkStackSizeMax <pid>

And you might get back for example:

-XX:CMSMarkStackSizeMax=4194304

I do not know of a universal jinfo query which will dump all
extant flags though.

-- ramki

----- Original Message -----
From: Victor Cheung <VictorC at ganz.com>
Date: Thursday, December 11, 2008 8:47 am
Subject: runtime JVM options
To: "hotspot-gc-use at openjdk.java.net" <hotspot-gc-use at openjdk.java.net>


> Hihi all,
> 
> I cannot seem to find the answer to this.  How can we get a list of 
> *all* the options and values that a running JVM is using?
> 
> victor
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