By asantaga on Oct 03, 2011
I recently was in Madrid with a collegue from our US Development HQ and he shared with me a number of JDeveloper JVM 6 parameter changes which really make a difference to how JDeveloper works. In a nutshell they are hints to the JVMs memory & garbage collector which makes JDeveloper run a little smoother...
Firstly locate your jdev.conf file, usually in $JDEV_HOME/jdeveloper/jdev/bin directory
Append the following lines to the end of this file
# only since Java 6 update 21 performance release
# reduces memory consumption
# only for multi-core machines
# works only on 64-bit JVM
# dramatically reduces memory consumption
# by reducing memory addressing length overhead
Then restart jdeveloper!