Java : how to check current Perm / PermGen Size?

Question

Yesterday when I was running the WebLogic Application Server 11g installer, I encountered a OutOfMemory error, so I Googled for the answer:

java -Xms256m -Xmx512         


        

Answer 1

You can check the values of any JVM flags of a running JVM by using the jinfo.exe utility.

%JAVA_HOME%\bin\jinfo.exe -flag

so to check the value of -XX:PermSize JVM option you can run

%JAVA_HOME%\bin\jinfo.exe -flag PermSize