Configurably prefetching head-of-queue from ring buffers

摘要

A method includes providing a prefetch cache of entries corresponding to communication rings stored in memory, the communication rings to store information passed from at least one first processing agent to at least one second processing agent. The method also includes detecting that one of the communication rings has an entry, and determining if the communication ring having an entry is to be prefetched. The method further includes prefetching information stored in the communication ring having an the entry by issuing a ring read operation that causes the information to be placed in a corresponding one of the entries in the prefetch cache.