International Business Machines Corporation
MINIMIZING DELAY WHILE MIGRATING DIRECT MEMORY ACCESS (DMA) MAPPED PAGES

Abstract:

During a memory reallocation process, it is determined that a set of memory pages being reallocated are each enabled for a Direct Memory Access (DMA) operation. Prior to writing initial data to the set of memory pages, a pre-access delay is performed concurrently for each memory page in the set of memory pages.