公开(公告)号：CA2357441C

公开(公告)日：2009-01-06

申请号：CA2357441

申请日：2001-09-18

Applicant: IBM

Inventor： TURNER MICHAEL ROBERT ,  PEARCE JERRY WILLIAM ,  CLEMENT THOMAS J ,  BAUMAN CHARLES DAVID ,  BEALKOWSKI RICHARD

IPC: G06F12/00 ,  G06F12/16 ,  G06F11/20 ,  G06F12/02 ,  G11C8/00

Abstract: A memory exhaustion condition is handled in a data processing system having first and second regions of physical memory. The memory exhaustion condition is detect ed while the second region is mirroring at least part of the first region. In response to the memory exhaustion condition, memory mirroring is at least partially deactivated and at least part of the second region is utilized to augment the first region, such that the memory exhaustion condition is eliminated. In an illustrative embodiment, the data processing system compresses real memory into the first region of physical memory, and the memory exhaustion condition arises when the firs t region lacks sufficient available capacity to accommodate current requirements for real memory. The memory exhaustion condition is eliminated by compressing at least part of the real memory into the second region.

公开(公告)号：CA2357441A1

公开(公告)日：2002-04-18

申请号：CA2357441

申请日：2001-09-18

Applicant: IBM

Inventor： BEALKOWSKI RICHARD ,  BAUMAN CHARLES DAVID ,  TURNER MICHAEL ROBERT ,  PEARCE JERRY WILLIAM ,  CLEMENT THOMAS J

IPC: G06F12/16 ,  G06F11/20 ,  G06F12/00 ,  G06F12/02 ,  G11C8/00

Abstract: A memory exhaustion condition is handled in a data processing system having first and second regions of physical memory. The memory exhaustion condition is detect ed while the second region is mirroring at least part of the first region. In response to the memory exhaustion condition, memory mirroring is at least partially deactivated and at least part of the second region is utilized to augment the first region, such that the memory exhaustion condition is eliminated. In an illustrative embodiment, the data processing system compresses real memory into the first region of physical memory, and the memory exhaustion condition arises when the firs t region lacks sufficient available capacity to accommodate current requirements for real memory. The memory exhaustion condition is eliminated by compressing at least part of the real memory into the second region.