The code to read and interpret the parameter still exists. This parameter determines the width of the hash table used to find locks on specific objects. The default is 101. The number should be prime to help the hash algorithm produce good distribution. It must be between 101 and 2048.
Background Think of the hash table as a linear array with chains hanging down from every cell.
The lock manager hashes the name of the object and takes that value mod the number of hash slots to determine the cell from which the lock will hang. When looking for a lock, it identifies the cell the same way, and then wanders down the chain, looking for an object with the right name. The longer the chains hanging from each slot, the slower the lock manager will be. Lock print will show the minimum, maximum and average length of the chains. A good average length is under 10.