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Method and apparatus for data exchange in virtual machine environment

A data exchange and virtual machine technology, applied in the field of data exchange, can solve problems such as unauthorized use and large extra overhead, and achieve the effects of improving operating efficiency, reducing time overhead, and reducing dependence on transmission resources.

Active Publication Date: 2017-03-01
IBM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

Therefore, in a virtual machine environment, when exchanging data in memory to other storage devices, since the other devices are likely to be remote devices, a large amount of additional overhead may be incurred when performing data exchange
In addition, even if there are idle storage resources locally on the host machine where the virtual machine is located, the virtual machine has no right to use these idle storage resources, but can only use those storage resources that have been allocated in advance

Method used

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  • Method and apparatus for data exchange in virtual machine environment
  • Method and apparatus for data exchange in virtual machine environment

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Embodiment Construction

[0025] Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0026] Those skilled in the art know that the present invention can be implemented as a system, method or computer program product. Therefore, the present disclosure can be specifically implemented in the following forms, that is: it can be complete hardware, it can also be complete software (including firmware, resident software, microcode, etc.), and it can also be a combination of hardware and software. Called a "circuit", "module" or "s...

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Abstract

Various embodiments of the present invention provide methods and devices for data exchange in a virtual machine environment. In one embodiment of the present invention, a method for exchanging data in a virtual machine environment is provided, including: in response to a swap request from a virtual machine, searching for a storage space associated with the swap request The free physical storage space matching the space is allocated to the virtual machine, so that the free physical storage space logically becomes the available storage space of the virtual machine; where the virtual machine runs on the host machine, and the storage space is the physical storage space in the host machine space. In one embodiment of the present invention, an apparatus for exchanging data in a virtual machine environment is provided.

Description

technical field [0001] Various embodiments of the present invention relate to memory management, and more specifically, to a method and device for data exchange (Swap) in a virtual machine (Virtual Machine) environment. Background technique [0002] A virtual machine refers to a machine implemented by software that can execute various applications like a physical machine. A virtual machine can run on a host machine (Host), and a virtual address of the virtual machine can be mapped to a physical address of the host machine, thereby supporting access to physical memory on the host machine. [0003] Data exchange is a technique often used in memory management. For example, in a memory management system of a computer, when memory resources are tight, some data that is used less frequently can be swapped to other storage devices (eg, hard disk, flash memory, etc.), so as to release memory resources. The released resources can be temporarily stored in other storage devices, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/02G06F9/455
Inventor 戈弋刘亮李立曲俊媚陈春海
Owner IBM CORP
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