Hi @Lourival
It doesn’t make any sense to have a program allocate more RAM than it needs. That’s waste.
Metabase is not a database, so it will not benefit from having everything in-memory.
And you need to leave RAM available for the rest of workstation (the OS and other applications).
But if you want to do that, then you can tell Metabase (or rather Java) to start with 10GB allocation and max at 12GB by adding this:
java -Xms10g -Xmx12g -jar metabase.jar
Read more about Java memory allocation:
https://stackoverflow.com/questions/14763079/what-are-the-xms-and-xmx-parameters-when-starting-jvm