公开(公告)号：US09710392B2

公开(公告)日：2017-07-18

申请号：US14460550

申请日：2014-08-15

Applicant: Advanced Micro Devices, Inc.

Inventor： Syed Ali Jafri ,  Yasuko Eckert ,  Srilatha Manne ,  Mithuna S Thottethodi

IPC: G06F12/10 ,  G06F12/1009

CPC classification number: G06F12/1009 ,  G06F2212/1024 ,  G06F2212/654 ,  G06F2212/655 ,  G06F2212/656

Abstract: Embodiments are described for methods and systems for mapping virtual memory pages to physical memory pages by analyzing a sequence of memory-bound accesses to the virtual memory pages, determining a degree of contiguity between the accessed virtual memory pages, and mapping sets of the accessed virtual memory pages to respective single physical memory pages. Embodiments are also described for a method for increasing locality of memory accesses to DRAM in virtual memory systems by analyzing a pattern of virtual memory accesses to identify contiguity of accessed virtual memory pages, predicting contiguity of the accessed virtual memory pages based on the pattern, and mapping the identified and predicted contiguous virtual memory pages to respective single physical memory pages.