(PPM) Support Tip: AMM, Database RAM utilization, and best practices
PPM documentation will be updated, with the information below.
Automatic Memory Management (AMM) is a recommended best practice.
Memory_max_target and Memory_target
If the Oracle server is not shared with other heavy-weighted application, then you can set memory_max_target and memory_target up to 65% OS RAM
If this server is not a dedicated DB server, the value should be determined by Server admin
sga_target and pga_aggregate_target can also act as minimum settings when using AMM.