aix.user.attr.rss
This configuration parameter specifies the soft limit for the largest amount of system memory that the user process can allocate. Use -1 to set an unlimited size.
For example, to set the value to 2097151:
aix.user.attr.rss: 2097151
This parameter corresponds to the aix.rss attribute in the /etc/security.limits file.
The default value is 65536.