To increase the performance of Oracle ATG Web Commerce applications, set the USER_MEM_ARGS
environment variable for your Oracle WebLogic server as shown below.
USER_MEM_ARGS='-Xms1152m -Xmx2048m'
See information about Oracle WebLogic memory allocation and environment variables in the documentation for that product (http://www.oracle.com/technetwork/middleware/weblogic/documentation/index.html).