JVM performance tuning increasing heap size process

if you see performance issues at OIM and they are mostly due to JMV, please tune these parameters.

It is recommended to increase the heap and permgen memory for production environments as below and
monitor the memory usage pattern. Based on the usage, you can choose to increase or decrease the memory
settings.

To change the JVM memory setting:
1. If your OIM version is 11.1.2.1.0 or above, use DOMAIN_HOME/bin/setOIMDomainEnv.sh
(Unix) or setOIMDomainEnv.cmd (Windows). If not, continue to use
DOMAIN_HOME/bin/setSOADomainEnv.sh (Unix) or setSOADomainEnv.cmd (Windows) to
change the heap size settings.
2. Change the value of DEFAULT_MEM_ARGS and PORT_MEM_ARGS from the default value and
save.
3. Restart OIM Server
Note: For a clustered or multi-node installation, this step needs to be repeated on all the install locations

Note:
setSOADomainEnv.sh  file have below value
DEFAULT_MEM_ARGS="-Xms512m -Xmx1024m"

Xms --> minimum size value
Xmx --> Maximum size value