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公开(公告)号：JP2002182972A
公开(公告)日：2002-06-28
申请号：JP2001319726
申请日：2001-10-17
Applicant: IBM
Inventor： BAUMAN CHARLES DAVID , RICHARD BEARUKOFUSUKI , CLEMENT THOMAS J , PEARCE JERRY WILLIAM , TURNER MICHAEL R
Abstract: PROBLEM TO BE SOLVED: To provide a method for reducing a risk of a system failure which is caused by memory exhaustion in a system where memory compression is used. SOLUTION: A memory exhaustion state is processed in a data processing system provided with first and second regions of a physical memory and is detected while the second region is mirroring at least part of the first region. Memory mirroring is at least partially deactivated, and at least part of the second region is used for augmenting the first region to eliminate the memory exhaustion state. In an illustrative embodiment, the memory exhaustion state occurs when the data processing system compressed real memory into the first region of the physical memory and the first area is not provided with a sufficient available capacity in order to accommodate a present request for real memory. The memory exhaustion state is eliminated by compressing at least part of the real memory in the second region.
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Patent Agency Ranking
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
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.
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公开(公告)号：DE60133522T2
公开(公告)日：2009-05-07
申请号：DE60133522
申请日：2001-09-12
Applicant: IBM
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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
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.
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