Invention Grant
US08234655B2 Detection of duplicate memory pages across guest operating systems on a shared host
失效
在共享主机上检测客户机操作系统上的重复内存页面
- Patent Title: Detection of duplicate memory pages across guest operating systems on a shared host
- Patent Title (中): 在共享主机上检测客户机操作系统上的重复内存页面
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Application No.: US12181674Application Date: 2008-07-29
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Publication No.: US08234655B2Publication Date: 2012-07-31
- Inventor: Kevin Michael Corry , Mark Alan Peloquin , Steven L. Pratt , Karl Milton Rister , Andrew Matthew Theurer
- Applicant: Kevin Michael Corry , Mark Alan Peloquin , Steven L. Pratt , Karl Milton Rister , Andrew Matthew Theurer
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: VanLeeuwen & VanLeeuwen
- Agent Steven L. Bennett
- Main IPC: G06F3/00
- IPC: G06F3/00 ; G06F9/44 ; G06F9/46 ; G06F13/00
Abstract:
A hypervisor receives a memory page checksum from a guest operating system, which corresponds to a page of memory utilized by the guest. Next, the hypervisor proceeds through a series of steps to detect that the memory page checksum matches a checksum value included in a checksum entry item, which includes an identifier of a different guest. In turn, the hypervisor shares the page of memory between the guest and the different guest in response to detecting that the memory page checksum matches the checksum value included the checksum entry item.
Public/Granted literature
- US20100031271A1 DETECTION OF DUPLICATE MEMORY PAGES ACROSS GUEST OPERATING SYSTEMS ON A SHARED HOST Public/Granted day:2010-02-04
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