code: private void findOptimalNodeOrder(final int block_size) {
  		final Node<K, V> leaf = createLeafNode();
  		final Node<K, V> internal = createInternalNode();
  		// Get Maximal Size
  		final int nodeSize = Math.max(leaf.getStructEstimateSize(MIN_B_ORDER),
  				internal.getStructEstimateSize(MIN_B_ORDER));
  		// Find minimal blockSize
  		blockSize = ((nodeSize > block_size) ? roundBlockSize(nodeSize, block_size) : block_size);
  		// Find b-order for Leaf Nodes
  		b_order_leaf = findOptimalNodeOrder(leaf);
  		// Find b-order for Internal Nodes
  		b_order_internal = findOptimalNodeOrder(internal);
  	}
docs: Calculate optimal values for b-order to fit in a block of block_size
  
  @param block_size integer with block size (bytes)