For 32-bit systems, 1024 MB is the recommended maximum allowable memory allocated to Java for running WebLogic.
For 64-bit systems, a recommended range of 4-6 GB depending upon system resources.
Set the default memory allocation properties in:
INSTALL_ROOT/interlace/config/ISServer.properties.
Set the instance specific memory settings in:
INSTALL_ROOT/custom/config/MACHINE_NAME.properties
If possible, increase memory size allocation. Scripts generally utilize the largest amount of system resources.
To reflect changes, you must refresh the server.