// 1/2 upper to upperKB-4 KB
int kiloBytes = Math.max( upperKB / 2, random.nextInt( upperKB ) );
int bytes = ( kiloBytes ) * 1024;
totalSize += bytes;
totalPut++;
DiskTestObject object = new DiskTestObject( new Integer( i ), new byte[bytes] );
jcs.put( String.valueOf( totalPut ), object );
}
// remove half of those inserted the previous run
if ( runCount > 1 )