Increase heap size in Java

Question

I am working on a Windows 2003 server (64-bit) with 8 GB RAM. How can I increase the heap memory maximum? I am using the -Xmx1500m flag to increase the heap siz

Answer 1

It is possible to increase heap size allocated by the JVM by using command line options Here we have 3 options

-Xms        set initial Java heap size
-Xmx        set maximum Java heap size
-Xss        set java thread stack size

java -Xms16m -Xmx64m ClassName

In the above line we can set minimum heap to 16mb and maximum heap 64mb