Page allocation management for virtual memory

Electrical computers and digital processing systems: memory – Storage accessing and control – Memory configuring

Reexamination Certificate

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Reexamination Certificate

active

07853771

ABSTRACT:
A method, system, device, and article of manufacture for use in a computer memory system utilizing multiple page types, for handling a memory resource request. In a accordance with the method of the invention, a request is received for allocation of pages having a first page type. The first page type has a specified allocation limit. A determination is made in response to the page allocation request of whether the number of allocated pages of the first page type exceeds or is below the allocation limit. In response to determining that the number of allocated pages of said first page type is below the allocation limit, the virtual memory manager enables allocation of pages for the request to exceed the allocation limit.

REFERENCES:
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patent: 6119214 (2000-09-01), Dirks
patent: 2002/0147733 (2002-10-01), Gold et al.
patent: 2006/0129780 (2006-06-01), Dunshea et al.
IBM, Distinguishing Between Short Term and Long Term Pins of Pages In Virtual Memory During I/O, Nov. 1, 1986, IBM Technical Disclosure Bulletin, Nov. 1986, pp. 2689-2690.
U.S. Appl. No. 11/011,243, filed Dec. 14, 2004, entitled, “Memory Pacing”, Inventor: Andrew Dunshea, et al.
U.S. Appl. No. 10/286,532, filed Oct. 31, 2002, entitled, “System and Method for Preferred Memory Affinity”, Inventor: Jos Accapadi, et al.
U.S. Appl. No. 10/828,455, filed Apr. 20, 2003, entitled, “System and Method for Dynamically Adjusting Read Ahead Values Based Upon Memory Usage”, Inventor: Jos Accapadi, et al.

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