Invention Application
- Patent Title: Selecting A Target Number of Pages for Allocation to a Partition
- Patent Title (中): 选择分配到分区的目标页数
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Application No.: US12424772Application Date: 2009-04-16
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Publication No.: US20100268907A1Publication Date: 2010-10-21
- Inventor: Wade B. Ouren , Edward C. Prosser , Kenneth C. Vossen
- Applicant: Wade B. Ouren , Edward C. Prosser , Kenneth C. Vossen
- Applicant Address: US NY Armonk
- Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee Address: US NY Armonk
- Main IPC: G06F12/02
- IPC: G06F12/02 ; G06F12/00
Abstract:
In an embodiment, a target number of discretionary pages for a first partition is calculated as a function of a number of physical page table faults, a number of sampled page faults, a number of shared physical page pool faults, a number of re-page-ins, and a ratio of pages. If the target number of discretionary pages for the first partition is less than a number of the discretionary pages that are allocated to the first partition, a result page is found that is allocated to the first partition and the result page is deallocated from the first partition. If the target number of discretionary pages for the first partition is greater than the number of the discretionary pages that are allocated to the first partition, a free page is allocated to the first partition.
Public/Granted literature
- US08090911B2 Selecting a target number of pages for allocation to a partition Public/Granted day:2012-01-03
Information query
