CN105159619A - Virtual memory extension method and apparatus - Google Patents
Virtual memory extension method and apparatus Download PDFInfo
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- CN105159619A CN105159619A CN201510624859.4A CN201510624859A CN105159619A CN 105159619 A CN105159619 A CN 105159619A CN 201510624859 A CN201510624859 A CN 201510624859A CN 105159619 A CN105159619 A CN 105159619A
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Abstract
The invention discloses a virtual memory extension method and apparatus. The method comprises: creating a virtual memory file with a preset size in a root directory of a Linux system; determining whether no mounted first target disk partition exists in the Linux system or not; when the first target disk partition exists, newly creating a first target directory in a media file of the Linux system; mounting the first target disk partition in the first target directory; and moving the virtual memory file to the first target disk partition, so that the virtual memory of the Linux system is increased by the preset size. Through the technical scheme provided by the invention, the disk partition most suitable for loading the virtual memory file can be determined in combination with specific use information of each disk partition in the Linux system, and the disk partition is used for loading the virtual memory file, so that the virtual memory is flexibly extended on the basis of reasonably utilizing the disk partition, and the influence of the extended virtual memory of the Linux system on other disk partitions in the system can be avoided.
Description
Technical field
The present invention relates to memory expansion technical field, particularly a kind of extended method of virtual memory and device.
Background technology
At present, the size of the virtual memory in the system that terminal is installed is all default value substantially, fixing, user cannot be expanded neatly or be reduced, more cannot the concrete use information of each disk partition of coupling system and service condition, reasonably utilizing on the basis of disk partition as much as possible, expand the size of virtual memory neatly.
Summary of the invention
The invention provides a kind of extended method and device of virtual memory, can in conjunction with the concrete use information of each disk partition in linux system, determine the disk partition of the most applicable loading virtual memory file, and use this disk partition to load virtual memory file, thus realize reasonably utilizing on the basis of disk partition, extend virtual memory neatly, make the virtual memory of linux system after being expanded, the impact on other disk partition in system can be avoided.
The invention provides a kind of extended method of virtual memory, comprising: the virtual memory file creating a default size under the root directory of linux system;
Determine in described linux system, whether to there is the first object disk partition not having carry;
When there is described first object disk partition, newly-built first object catalogue under the media file of described linux system;
By described first object disk partition carry under described first object catalogue;
Described virtual memory file is moved to described first object disk partition, so that the virtual memory of described linux system is increased described default size.
In one embodiment, described method also comprises:
When there is not described first object disk partition, determine the use information of each disk partition of carry in described linux system;
According to the use information of described each disk partition, determine the second target disk subregion that disk residual capacity is maximum;
Described virtual memory file is moved to described second target disk subregion, so that the virtual memory of described linux system is increased described default size.
In one embodiment, described method also comprises:
Enable described virtual memory file;
Perform free-m order, check the virtual memory after the increase of described linux system.
In one embodiment, describedly determine whether there is the first object disk partition not having carry in described linux system, comprising:
The use information of the first object disk partition not having carry in described linux system is obtained, to determine whether there is the first object disk partition not having carry in described linux system by performing fdisk-l order;
The described use information determining each disk partition of carry in described linux system, comprising:
The use information of each disk partition of carry in described linux system is obtained by performing df-h order.
The present invention also provides a kind of expanding unit of virtual memory, comprising: creation module, for creating the virtual memory file of a default size under the root directory of linux system;
Whether the first determination module, exist for determining the first object disk partition not having carry in described linux system;
Newly-built module, for when there is described first object disk partition, newly-built first object catalogue under the media file of described linux system;
Carry module, for by described first object disk partition carry under described first object catalogue;
First mobile module, for described virtual memory file is moved to described first object disk partition, to increase described default size by the virtual memory of described linux system.
In one embodiment, described device also comprises:
Second determination module, for when there is not described first object disk partition, determines the use information of each disk partition of carry in described linux system;
3rd determination module, for the use information according to described each disk partition, determines the second target disk subregion that disk residual capacity is maximum;
Second mobile module, for described virtual memory file is moved to described second target disk subregion, to increase described default size by the virtual memory of described linux system.
In one embodiment, described device also comprises:
Enable module, for enabling described virtual memory file;
Execution module, for performing free-m order, checks the virtual memory after the increase of described linux system.
In one embodiment, described first determination module comprises:
First obtains submodule, for obtaining the use information of the first object disk partition not having carry in described linux system by performing fdisk-l order, to determine whether there is the first object disk partition not having carry in described linux system;
Described second determination module comprises:
Second obtains submodule, for obtaining the use information of each disk partition of carry in described linux system by performing df-h order.
The technical scheme that embodiment of the present disclosure provides can comprise following beneficial effect:
Can in conjunction with the concrete use information of each disk partition in linux system, determine the disk partition of the most applicable loading virtual memory file, and use this disk partition to load virtual memory file, thus realize reasonably utilizing on the basis of disk partition, extend virtual memory neatly, make the virtual memory of linux system after being expanded, the impact on other disk partition in system can be avoided.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from instructions, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write instructions, claims and accompanying drawing and obtain.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for instructions, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the process flow diagram of the extended method of a kind of virtual memory according to an exemplary embodiment.
Fig. 2 is the process flow diagram of the extended method of another kind of virtual memory according to an exemplary embodiment.
Fig. 3 is the block diagram of the expanding unit of a kind of virtual memory according to an exemplary embodiment.
Fig. 4 is the block diagram of the expanding unit of another kind of virtual memory according to an exemplary embodiment.
Fig. 5 is the block diagram of the expanding unit of another virtual memory according to an exemplary embodiment.
Fig. 6 is the block diagram of the expanding unit of another virtual memory according to an exemplary embodiment.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
In correlation technique, the size of the virtual memory in the system that terminal is installed is all default value substantially, fixing, user cannot be expanded neatly or be reduced, more cannot the concrete use information of each disk partition of coupling system and service condition, reasonably utilizing on the basis of disk partition as much as possible, expand the size of virtual memory neatly, make system after being expanded virtual memory, the impact on other disk partition in system can be avoided.
In order to solve the problems of the technologies described above, disclosure embodiment provides a kind of extended method of virtual memory, and its executive agent is terminal or server, and the method is applicable in the extender of virtual memory, system or device, as shown in Figure 1,
Step S101, creates the virtual memory file of a default size under the root directory of linux system;
User is when expanding the virtual memory of linux system of this equipment, expect virtual memory expansion how many, just the default size of this virtual memory file is set to much, such as: user expects virtual memory to expand 1G, this default size just equals 1G, and its concrete implementation is as follows:
The newly-built addswap by name of fill order ddif=/dev/zeroof=/swapaddbs=1024count=1048576//under root directory dev, size is the virtual memory file of 1G.This is a partitioned file, uses as virtual memory file.
Step S102, determines whether there is the first object disk partition not having carry in described linux system;
Can by performing fdisk-l order, check the service condition of the disk partition not having carry, first object disk partition is determined whether there is according to whether showing result, particularly: if demonstrate disk partition after performing this order, then illustrate to there is this first object disk partition, and the disk partition demonstrated is exactly this does not have the first object disk partition of carry; If do not demonstrate any disk partition after performing this order, then all disk partition are described all by carry, there is not first object disk partition.
In addition, cannot normally use owing to there is no the disk partition of carry, not yet used, idle, therefore, the present invention first can determine whether there is this first object disk partition, if existed, with regard to this first object disk partition of carry, so that this virtual memory file is moved to this first object disk partition, so not only Installed System Memory can be expanded, also can effectively utilize this first object disk partition simultaneously, and avoid because this first object disk partition is idle, and cause the waste of system resource, also can avoid taking the resource of other disk partition that can normally use of carry simultaneously, thus avoid the impact of the disk partition that can normally use.
Secondly, above-mentioned service condition is exactly use information hereinafter, comprises the total volume of disk partition, uses capacity, residual capacity, utilization rate etc.
In addition, if demonstrate two or more disk partition after performing fdisk-l order, then illustrate that these two or more disk partition are all do not have the disk of carry to distinguish, maximum disk partition of residual capacity during these then can be selected not have the disk of carry to distinguish or the minimum disk partition of utilization rate as final first object disk partition, the first object disk partition that so just can this be utilized fully final.
Step S103, when there is described first object disk partition, newly-built first object catalogue under the media file of described linux system;
Its concrete implementation is as follows:
Perform the newly-built first object catalogue memory of mkdir/media/memory//under media file.
Step S104, by described first object disk partition carry under described first object catalogue;
Under first object disk partition being mounted to this first object catalogue, this first object disk partition is just made normally to be used.
By as follows for the process not having the larger first object disk partition dev/sdb1 of carry to be mounted under memory catalogue:
Perform mount/dev/sdb1/media/memory.
Wherein, Mount represents carry, and dev/sdb1 represents first object disk partition, and/media/memory represents first object catalogue.
Step S105, moves to described first object disk partition by described virtual memory file, so that the virtual memory of described linux system is increased described default size.
This virtual memory file is moved to the process of this first object disk partition, it is exactly the process that first object disk partition loads this virtual memory file, and just this virtual memory file is moved to Installed System Memory by this process and suffered, so just achieve on the basis effectively utilizing first object disk partition, extend virtual memory neatly, and the virtual memory of this linux system is after being expanded, the resource of other disk partition is not taken, just do not have influence on other disk partition yet.
Wherein, mobile virtual memory file addswap is as follows to the process of first object disk partition dev/sdb1:
Perform mv/addswap/media/memory.
As shown in Figure 2, in one embodiment, described method also comprises:
Step S201, when there is not described first object disk partition, determines the use information of each disk partition of carry in described linux system;
When there is not first object disk partition, all disk partition are described all by carry, then can determine the use information of each disk partition of carry further, concrete deterministic process is as follows:
Perform df-h order, check the service condition of each disk partition when front mount.
Step S202, according to the use information of described each disk partition, determines the second target disk subregion that disk residual capacity is maximum;
Can according to the disk residual capacity in the use information of each disk partition, determine the second target disk subregion that disk residual capacity is maximum, so that load this virtual memory file by this second target disk subregion, thus make full use of this second target disk subregion, and avoid the resource taking other disk partition.
Step S203, moves to described second target disk subregion by described virtual memory file, so that the virtual memory of described linux system is increased described default size.
This virtual memory file is moved to the process of this second target disk subregion, second target disk subregion loads the process of this virtual memory file exactly, and just this virtual memory file is moved to Installed System Memory by this process and suffered, so just achieve on the basis effectively utilizing the second target disk subregion, extend virtual memory neatly, and the virtual memory of this linux system is after being expanded, the resource of other disk partition is not taken, just do not have influence on other disk partition yet.
In one embodiment, described method also comprises:
Enable described virtual memory file;
Can by performing following command enable virtual memory mkswap/media/memory/addswap, swapon/media/memory/addswap
Wherein, mkswap represents and arranges exchange area (swaparea), and swapon represents start up system exchange area (swaparea).
Perform free-m order, check the virtual memory after the increase of described linux system.
Perform free-m order can check existing in linux system in have much, employ how many, virtual memory has much, employs how many, and can find the many default sizes of virtual memory after performing this order.
Certainly, if expect to delete the part Installed System Memory increased, can by following process:
Perform swapoff-v/media/memory/addswap, wherein swapoff order can close exchange partition.
In one embodiment, describedly determine whether there is the first object disk partition not having carry in described linux system, comprising:
The use information of the first object disk partition not having carry in described linux system is obtained, to determine whether there is the first object disk partition not having carry in described linux system by performing fdisk-l order;
After execution fdisk-l order, the service condition of the disk partition not having carry can being checked, determining whether there is first object disk partition according to whether showing result.
The described use information determining each disk partition of carry in described linux system, comprising:
The use information of each disk partition of carry in described linux system is obtained by performing df-h order.
As shown in Figure 3, the present invention also provides a kind of expanding unit of virtual memory, comprising: creation module 301, for creating the virtual memory file of a default size under the root directory of linux system;
Whether the first determination module 302, exist for determining the first object disk partition not having carry in described linux system;
Newly-built module 303, for when there is described first object disk partition, newly-built first object catalogue under the media file of described linux system;
Carry module 304, for by described first object disk partition carry under described first object catalogue;
First mobile module 305, for described virtual memory file is moved to described first object disk partition, to increase described default size by the virtual memory of described linux system.
As shown in Figure 4, in one embodiment, described device also comprises:
Second determination module 401, for when there is not described first object disk partition, determines the use information of each disk partition of carry in described linux system;
3rd determination module 402, for the use information according to described each disk partition, determines the second target disk subregion that disk residual capacity is maximum;
Second mobile module 403, for described virtual memory file is moved to described second target disk subregion, to increase described default size by the virtual memory of described linux system.
As shown in Figure 5, in one embodiment, described device also comprises:
Enable module 501, for enabling described virtual memory file;
Execution module 502, for performing free-m order, checks the virtual memory after the increase of described linux system.
As shown in Figure 6, in one embodiment, described first determination module 302 comprises:
First obtains submodule 3021, for obtaining the use information of the first object disk partition not having carry in described linux system by performing fdisk-l order, to determine whether there is the first object disk partition not having carry in described linux system;
Described second determination module 401 comprises:
Second obtains submodule 4011, for obtaining the use information of each disk partition of carry in described linux system by performing df-h order.
About the device in above-described embodiment, wherein the concrete mode of modules executable operations has been described in detail in about the embodiment of the method, will not elaborate explanation herein.
Finally, the expanding unit of the virtual memory in the present invention is applicable to terminal device.Such as, can be mobile phone, computing machine, digital broadcast terminal, messaging devices, game console, tablet device, Medical Devices, body-building equipment, personal digital assistant etc.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disk memory and optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the process flow diagram of the method for the embodiment of the present invention, equipment (system) and computer program and/or block scheme.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block scheme and/or square frame and process flow diagram and/or block scheme and/or square frame.These computer program instructions can being provided to the processor of multi-purpose computer, special purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computing machine or other programmable data processing device produce device for realizing the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
These computer program instructions also can be loaded in computing machine or other programmable data processing device, make on computing machine or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computing machine or other programmable devices is provided for the step realizing the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (8)
1. an extended method for virtual memory, is characterized in that, comprising:
The virtual memory file of a default size is created under the root directory of linux system;
Determine in described linux system, whether to there is the first object disk partition not having carry;
When there is described first object disk partition, newly-built first object catalogue under the media file of described linux system;
By described first object disk partition carry under described first object catalogue;
Described virtual memory file is moved to described first object disk partition, so that the virtual memory of described linux system is increased described default size.
2. method according to claim 1, is characterized in that, described method also comprises:
When there is not described first object disk partition, determine the use information of each disk partition of carry in described linux system;
According to the use information of described each disk partition, determine the second target disk subregion that disk residual capacity is maximum;
Described virtual memory file is moved to described second target disk subregion, so that the virtual memory of described linux system is increased described default size.
3. method according to claim 1, is characterized in that, described method also comprises:
Enable described virtual memory file;
Perform free-m order, check the virtual memory after the increase of described linux system.
4. according to the method in any one of claims 1 to 3, it is characterized in that,
Describedly determine whether there is the first object disk partition not having carry in described linux system, comprising:
The use information of the first object disk partition not having carry in described linux system is obtained, to determine whether there is the first object disk partition not having carry in described linux system by performing fdisk-l order;
The described use information determining each disk partition of carry in described linux system, comprising:
The use information of each disk partition of carry in described linux system is obtained by performing df-h order.
5. an expanding unit for virtual memory, is characterized in that, comprising:
Creation module, for creating the virtual memory file of a default size under the root directory of linux system;
Whether the first determination module, exist for determining the first object disk partition not having carry in described linux system;
Newly-built module, for when there is described first object disk partition, newly-built first object catalogue under the media file of described linux system;
Carry module, for by described first object disk partition carry under described first object catalogue;
First mobile module, for described virtual memory file is moved to described first object disk partition, to increase described default size by the virtual memory of described linux system.
6. device according to claim 5, is characterized in that, described device also comprises:
Second determination module, for when there is not described first object disk partition, determines the use information of each disk partition of carry in described linux system;
3rd determination module, for the use information according to described each disk partition, determines the second target disk subregion that disk residual capacity is maximum;
Second mobile module, for described virtual memory file is moved to described second target disk subregion, to increase described default size by the virtual memory of described linux system.
7. device according to claim 5, is characterized in that, described device also comprises:
Enable module, for enabling described virtual memory file;
Execution module, for performing free-m order, checks the virtual memory after the increase of described linux system.
8. the device according to any one of claim 5 to 7, is characterized in that,
Described first determination module comprises:
First obtains submodule, for obtaining the use information of the first object disk partition not having carry in described linux system by performing fdisk-l order, to determine whether there is the first object disk partition not having carry in described linux system;
Described second determination module comprises:
Second obtains submodule, for obtaining the use information of each disk partition of carry in described linux system by performing df-h order.
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| CN201510624859.4A CN105159619B (en) | 2015-09-25 | 2015-09-25 | The extended method and device of a kind of virtual memory |
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| CN201510624859.4A CN105159619B (en) | 2015-09-25 | 2015-09-25 | The extended method and device of a kind of virtual memory |
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Cited By (2)
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| CN106227473A (en) * | 2016-09-27 | 2016-12-14 | 天脉聚源(北京)传媒科技有限公司 | A kind of using internal memory as the implementation method of disk read-write and device |
| CN107861790A (en) * | 2017-10-27 | 2018-03-30 | 新华三云计算技术有限公司 | Magnetic disk of virtual machine Extend Methods of Spatial Distribution, device, host and readable storage medium storing program for executing |
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| CN103150180A (en) * | 2013-02-07 | 2013-06-12 | 宝龙计算机系统（湖南）有限公司 | Method and device for mounting and operating UNIX-like operation system |
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| US5968170A (en) * | 1997-04-23 | 1999-10-19 | Advanced Micro Devices, Inc. | Primary swap size increase on a UNIX based computer system |
| CN102799536A (en) * | 2011-05-24 | 2012-11-28 | 中兴通讯股份有限公司 | Self-adapted method and device of storage device capacity in embedded type system |
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| CN107861790A (en) * | 2017-10-27 | 2018-03-30 | 新华三云计算技术有限公司 | Magnetic disk of virtual machine Extend Methods of Spatial Distribution, device, host and readable storage medium storing program for executing |
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| CN105159619B (en) | 2018-02-09 |
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Denomination of invention: A method and device for expanding virtual memory Effective date of registration: 20210104 Granted publication date: 20180209 Pledgee: Inner Mongolia Huipu Energy Co.,Ltd. Pledgor: TVMINING (BEIJING) MEDIA TECHNOLOGY Co.,Ltd. Registration number: Y2020990001527 |
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Granted publication date: 20180209 Termination date: 20210925 |