METHOD AND APPARATUS FOR ADAPTIVELY SELECTING DATA TRANSFER PROCESSES FOR SINGLE-PRODUCER-SINGLE-CONSUMER AND WIDELY SHARED CACHE LINES

摘要

A method for adaptively performing a set of data transfer processes in a multi-core processor is described. The method may include receiving, by a shared cache from a first core cache, a first request for a cache line; determining, by the shared cache in response to receipt of the first request, whether the cache line is a widely-shared cache line or a single-producer-single-consumer cache line; and performing, by the first core cache and a second core cache, a three-hop data transfer process in response to determining that the cache line is a single-producer-single-consumer cache line, wherein the three-hop data transfer process transfers the cache line directly from the second core cache to the first core cache.