Need lots of RAM

Question

My jvm really plays nice with other programs. How can I tell it to be piggish and take lots of RAM?

Answer 1

dminter:
Thanks again. You were exactly right. Piping the results of this slightly less trivial program shows that the jvm grabs a minimal initial heap, and then expands, up to the stated max, as needed. This one dies with .25G in the heap and 3MB left free if called with -Xmx256M.
public class test {
    public static void main( String[] args ) {
     int K = 1024;
     byte[][] buffers = new byte[ K ][];
     for ( int i = 0; i < K; i++ ) {
         buffers[i] = new byte[ K * K ];
         System.out.println
             ( "free: " + Runtime.getRuntime().freeMemory() +
             " total:" + Runtime.getRuntime().totalMemory() );
        System.exit( 0 );
    } // end of main()
} // end of test