公开(公告)号：JP2002278837A

公开(公告)日：2002-09-27

申请号：JP2002033739

申请日：2002-02-12

Applicant: IBM

Inventor： HERGER LORRAINE M ,  MCHUGH MARY ,  POFF DAN E ,  ROBERT A SACCONE JR ,  CHARLES O SCHULZ ,  SMITH T BASIL III

IPC: G06F12/12 ,  G06F12/00 ,  G06F12/02 ,  G06F12/04 ,  G06F12/08 ,  G06F13/16

Abstract: PROBLEM TO BE SOLVED: To provide a memory use managing system to be operated transparently for an operating system(O/S) without changing O/S kernel software in a computer system having compressed main memory programming. SOLUTION: This system is provided with a compressed memory device driver for receiving real memory use information from a compressed memory hardware controller and a compression managing subsystem which includes a mechanism for controlling a memory use threshold for controlling a memory state change and stores memory assignment and memory recovery depending on a memory use state, and the system is packaged with software to be operated so that the control of the use of real memory inside the computer system can be transparent for the O/S.