Page access method, page access device and server

An access method and a technology of an access device, which are applied in the computer field and can solve problems such as high hard disk overhead and low memory utilization

Inactive Publication Date: 2014-01-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a page access method, a page access device, and a server, which solve the problems of low memory utilization and high hard disk overhead while improving memory utilization

Method used

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  • Page access method, page access device and server
  • Page access method, page access device and server
  • Page access method, page access device and server

Examples

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Embodiment Construction

[0048] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0049] The embodiment of the present invention provides a page access method, such as figure 1 As shown, the method includes:

[0050] 101. When a page fault occurs when a virtual machine accesses a target page, determine the page fault type of the target page. The page fault type includes that the target page does not exist or the target page is replaced.

[0051] 102. If the target page does not exist, create a new target page and enable t...

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PUM

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Abstract

An embodiment of the invention provides a page access method, a page access device and a server, and relates to the field of computers. The expenditure of a hard disk is reduced while memory utilization rate is increased. The specific scheme includes that the missing page type of a destination page is judged when the destination page accessed by a virtual machine is missed, the missing page type includes inexistence of the destination page or replacement of the destination page, the destination page is newly built if the destination page does not exist, the virtual machine can access the newly built destination page and acquire and store characteristic parameters of the destination page, pages with characteristic parameters as same as those of the destination page are searched if the destination page is replaced, and the virtual machine can access the pages with the characteristic parameters as same as those of the destination page after the pages are searched. The page access method, the page access device and the server are used for accessing pages by the virtual machine.

Description

Technical field [0001] The present invention relates to the field of computers, and in particular to a page access method, page access device and server. Background technique [0002] Virtual Machine (Virtual Machine) refers to a complete computer system with complete hardware system functions simulated by software and running in a completely isolated environment. Through virtual machine software, a physical computer (such as a personal computer or a server) can be One or more virtual computers are simulated, and these virtual machines can perform the same tasks as real computers. In the prior art, the server can run more and more virtual machines, and the data accessed by each virtual machine has many similarities. For example, there are a large number of pages with the same content in the memory (the physical address of the memory is divided into Discrete units. The memory corresponding to these discrete units is called a page. At present, the page size of most systems is 4KB)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/455G06F12/08
CPCG06F12/08G06F2212/151G06F2212/152
Inventor 黄海彬
Owner HUAWEI TECH CO LTD
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