java - Avoiding Initial Memory Heap Size Error

Question

I run a Java code with the following command:

$ java -Xms4G -Xmx4G myjavacode

My cpu's RAM capacity is 6GB.

However it always fail to execute giving me this error message:

Invalid initial heap size: -Xms5G
The specified size exceeds the maximum representable size.
Could not create the Java virtual machine

Is there any way to set up Java option so that we can execute the code?

Answer 1

You've exceeded the maximum heap size of your JVM. This is both JVM and OS dependent. In most 32-bit systems the maximum value will be 2Gb, regardless of the physical memory available.