How do I find the physical memory size in Java?

Question

I\'m writing an installer that will tune the configuration of the product for the particular hardware on which it will be run. In particular, I want to determine how much p

Answer 1

If your intent is to tune memory settings for the JVM to use all the available physical memory, but not more, then you can take a look at the -XX:+AggressiveHeap parameter.

With it, you don't need to know the available memory. The JVM will scale it's parameters automatically.