Freeing up system memory?

[jeffreymorris1]

My computer has 12GB of system memory and City Engine keeps on asking me to purge system memory when working with huge files. How do I free up system memory before running City Engine?

[AbeleGiandoso]

Do NOT assign more than half of your system memory to Java.

A question from a not very technology savvy guy: I have 48 GB of RAM, how does it translate as a safe limit?

48/2= 24 Do i have to multiply it by 1000? 

2048, 4096, 8192, 16384, 32768? Would you mean do not set it over 24.000?

I have a big big scene and ATM I get the Purge memory messages, so I would like to use the best settings

Thanks a million

A

This is what my CityEngine.Ini configuration settings says

-Xms384M
-Xmx6G
-XX:MaxDirectMemorySize=64G
-Xincgc
-XX:+UseCompressedOops
-XX:TieredStopAtLevel=1