Processors configured by aspects of the present invention optimize reference cache maintenance in a serialization system by serializing a plurality of objects into a buffer and determining whether any of the objects are repeated within the buffered serialized plurality. The configured processors insert an object repetition data signal within the serialized plurality of objects that indicates to a receiver whether or not any objects are determined to be repeated within the buffered serialized plurality of objects, and send the serialized plurality of objects with the inserted object repetition data signal as a single chunk to a receiver, wherein the inserted object repetition data signal conveys reference cache management instructions to the receiver.