CN105159619B - The extended method and device of a kind of virtual memory - Google Patents
The extended method and device of a kind of virtual memory Download PDFInfo
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- CN105159619B CN105159619B CN201510624859.4A CN201510624859A CN105159619B CN 105159619 B CN105159619 B CN 105159619B CN 201510624859 A CN201510624859 A CN 201510624859A CN 105159619 B CN105159619 B CN 105159619B
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- virtual memory
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Abstract
The invention discloses a kind of extended method of virtual memory and device.Method includes：The virtual memory file of a default size is created under the root of linux system；Determine in linux system with the presence or absence of the first object disk partition of no carry；When first object disk partition be present, the newly-built first object catalogue under the media files of linux system；By first object disk partition carry under first object catalogue；Virtual memory file is moved to first object disk partition, the virtual memory of linux system is increased into default size.Pass through technical scheme, the specifically used information of each disk partition in linux system can be combined, determine to be best suitable for the disk partition for loading virtual memory file, and load virtual memory file using the disk partition, so as to realize on the basis of disk partition is reasonably utilized, virtual memory is neatly extended, the virtual memory of linux system is avoided the influence to other disk partition in system after being expanded.
Description
Technical field
The present invention relates to memory expansion technical field, the extended method and device of more particularly to a kind of virtual memory.
Background technology
At present, the size of the virtual memory in the system installed in terminal is essentially all default value, is fixed, user
Neatly it can not be extended or be reduced, the specifically used information for each disk partition that can not more combine system is service condition,
On the basis of reasonably disk partition is utilized as much as possible, the size of virtual memory is neatly extended.
The content of the invention
The present invention provides a kind of extended method and device of virtual memory, can combine each disk point in linux system
The specifically used information in area, determine to be best suitable for the disk partition of loading virtual memory file, and added using the disk partition
Virtual memory file is carried, so as to realize on the basis of reasonably disk partition is utilized, virtual memory is neatly extended, makes
The virtual memory of linux system can avoid the influence to other disk partition in system after being expanded.
The present invention provides a kind of extended method of virtual memory, including：One is created under the root of linux system in advance
If the virtual memory file of size；
Determine in the linux system with the presence or absence of the first object disk partition of no carry；
When the first object disk partition be present, the newly-built first object under the media files of the linux system
Catalogue；
By the first object disk partition carry under the first object catalogue；
The virtual memory file is moved to the first object disk partition, by the virtual of the linux system
Internal memory increases the default size.
In one embodiment, methods described also includes：
When in the absence of the first object disk partition, determine that each disk of carry divides in the linux system
The use information in area；
According to the use information of each disk partition, disk residual capacity the second maximum target disk point is determined
Area；
The virtual memory file is moved to the second target disk subregion, by the virtual of the linux system
Internal memory increases the default size.
In one embodiment, methods described also includes：
Enable the virtual memory file；
Perform free-m orders, the virtual memory checked after the increase of the linux system.
In one embodiment, the first object disk for determining to whether there is no carry in the linux system
Subregion, including：
The first object disk partition for not having carry in the linux system is obtained by performing fdisk-l orders
Use information, to determine to whether there is the first object disk partition of no carry in the linux system；
The use information for determining each disk partition of carry in the linux system, including：
The use information of each disk partition of carry is obtained in the linux system by performing df-h orders.
The present invention also provides a kind of expanding unit of virtual memory, including：Creation module, for the root in linux system
The virtual memory file of a default size is created under catalogue；
First determining module, for determining in the linux system with the presence or absence of the first object disk point of no carry
Area；
Newly-built module, for when the first object disk partition be present, in the media files of the linux system
Under newly-built first object catalogue；
Carry module, for by the first object disk partition carry under the first object catalogue；
First mobile module, for the virtual memory file to be moved into the first object disk partition, by institute
The virtual memory for stating linux system increases the default size.
In one embodiment, described device also includes：
Second determining module, for when in the absence of the first object disk partition, determining in the linux system
The use information of each disk partition through carry；
3rd determining module, for the use information according to each disk partition, determine disk residual capacity maximum
The second target disk subregion；
Second mobile module, for the virtual memory file to be moved into the second target disk subregion, by institute
The virtual memory for stating linux system increases the default size.
In one embodiment, described device also includes：
Module is enabled, for enabling the virtual memory file；
Execution module, for performing free-m orders, the virtual memory checked after the increase of the linux system.
In one embodiment, first determining module includes：
First acquisition submodule, for not having carry by performing fdisk-l orders to obtain in the linux system
The use information of first object disk partition, to determine to whether there is the first object magnetic of no carry in the linux system
Disk subregion；
Second determining module includes：
Second acquisition submodule, for obtaining in the linux system each of carry by performing df-h orders
The use information of disk partition.
The technical scheme provided by this disclosed embodiment can include the following benefits：
The specifically used information of each disk partition in linux system can be combined, determines to be best suitable in loading virtually
The disk partition of file is deposited, and virtual memory file is loaded using the disk partition, disk is reasonably being utilized so as to realize
On the basis of subregion, virtual memory is neatly extended, makes the virtual memory of linux system after being expanded, can be avoided pair
The influence of other disk partition in system.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by the explanations write
Specifically noted structure is realized and obtained in book, claims and accompanying drawing.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
Apply example to be used to explain the present invention together, be not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is a kind of flow chart of the extended method of virtual memory according to an exemplary embodiment.
Fig. 2 is the flow chart of the extended method of another virtual memory according to an exemplary embodiment.
Fig. 3 is a kind of block diagram of the expanding unit of virtual memory according to an exemplary embodiment.
Fig. 4 is the block diagram of the expanding unit of another 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
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that described herein preferred real
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
In correlation technique, the size of the virtual memory in the system installed in terminal is essentially all default value, is fixed
, user neatly can not be extended or be reduced, even if can not more combine the specifically used information of each disk partition of system
With situation, on the basis of reasonably disk partition is utilized as much as possible, the size of virtual memory is neatly extended, system is existed
After being expanded virtual memory, the influence to other disk partition in system can be avoided.
In order to solve the above-mentioned technical problem, the embodiment of the present disclosure provides a kind of extended method of virtual memory, and it is performed
Main body is terminal or server, this method suitable for the extender of virtual memory, system or device, as shown in figure 1,
Step S101, the virtual memory file of a default size is created under the root of linux system；
User extend this equipment linux system virtual memory when, it is expected by virtual memory extension how much, just should
Virtual memory file it is default be dimensioned to it is much, such as：User it is expected virtual memory extending 1G, and the default size is just etc.
In 1G, and its specific implementation procedure is as follows：
Execution order dd if=/dev/zero of=/swapaddbs=1024count=1048576//in root
A newly-built entitled addswap under dev, size are 1G virtual memory file.This is a partitioned file, as virtual memory
File uses.
Step S102, determine to whether there is the first object disk partition of no carry in the linux system；
Can be by performing fdisk-l orders, to check the service condition of the disk partition of no carry, according to whether aobvious
It is shown with result to determine whether there is first object disk partition, specifically：If showing disk partition after performing the order,
Then there is the first object disk partition in explanation, and the disk partition shown is exactly that this does not have the first object disk point of carry
Area；If not showing any disk partition after performing the order, illustrate that all disk partition all by carry, are not deposited
In first object disk partition.
Further, since the disk partition of no carry can not normal use, be still not used by, be it is idle, therefore,
The present invention can first determine whether there is the first object disk partition, if it does, with regard to the carry first object disk partition, with
It is easy to the virtual memory file being moved to the first object disk partition, so can not only expands Installed System Memory, while
The first object disk partition can be effectively utilized, and is avoided because the first object disk partition is idle, and causes system
The waste of resource, while be also avoided that and the resource of other disk partition for being capable of normal use of carry is taken,
So as to avoid being capable of the influence of the disk partition of normal use.
Secondly, above-mentioned service condition is exactly use information hereinafter, including the total capacity of disk partition, with capacity,
Residual capacity, utilization rate etc..
In addition, if perform fdisk-l orders after show two or more disk partition, then illustrate this two or
Two or more disk partition is that the disk of no carry is distinguished, then these can be selected not have surplus in the differentiation of the disk of carry
The maximum disk partition of covolume amount or the minimum disk partition of utilization rate thus may be used as final first object disk partition
Fully to utilize the final first object disk partition.
Step S103 is new under the media files of the linux system when the first object disk partition be present
Build first object catalogue；
Its specific implementation procedure is as follows：
Perform the newly-built first object catalogue memory of mkdir/media/memory//under media files.
Step S104, by the first object disk partition carry under the first object catalogue；
First object disk partition is mounted under the first object catalogue, allowing for the first object disk partition can
By normal use.
The larger first object disk partition dev/sdb1 of no carry is mounted to process under memory catalogues such as
Under：
Perform mount/dev/sdb1/media/memory.
Wherein, Mount represents carry, and dev/sdb1 represents first object disk partition, and/media/memory represents first
Target directory.
Step S105, the virtual memory file is moved to the first object disk partition, by the Linux systems
The virtual memory of system increases the default size.
The virtual memory file is moved to the process of the first object disk partition, is exactly that first object disk partition adds
The process of the virtual memory file is carried, and the virtual memory file is just moved to by Installed System Memory by the process and suffered, so
It is achieved that on the basis of first object disk partition is effectively utilized, neatly extends virtual memory, and the Linux systems
The virtual memory of system does not take, also just without influence on other after being expanded to the resource of other disk partition
Disk partition.
Wherein, mobile virtual memory file addswap to first object disk partition dev/sdb1 process are as follows：
Perform mv/addswap/media/memory.
As shown in Fig. 2 in one embodiment, methods described also includes：
Step S201, when in the absence of the first object disk partition, determine in the linux system carry
The use information of each disk partition；
When in the absence of first object disk partition, illustrate that all disk partition, then can be further all by carry
It is determined that the use information of each disk partition of carry, specific determination process are as follows：
Df-h orders are performed, are checked when the service condition of each disk partition of front mount.
Step S202, according to the use information of each disk partition, determine the second maximum mesh of disk residual capacity
Mark disk partition；
It can determine that disk residual capacity is maximum according to the disk residual capacity in the use information of each disk partition
Second target disk subregion, in order to load the virtual memory file by the second target disk subregion, so as to make full use of
The second target disk subregion, and avoid taking the resource of other disk partition.
Step S203, the virtual memory file is moved to the second target disk subregion, by the Linux systems
The virtual memory of system increases the default size.
The virtual memory file is moved to the process of the second target disk subregion, exactly the second target disk subregion adds
The process of the virtual memory file is carried, and the virtual memory file is just moved to by Installed System Memory by the process and suffered, so
It is achieved that on the basis of the second target disk subregion is effectively utilized, neatly extends virtual memory, and the Linux systems
The virtual memory of system does not take, also just without influence on other after being expanded to the resource of other disk partition
Disk partition.
In one embodiment, methods described also includes：
Enable the virtual memory file；
By performing virtual memory mkswap/media/memory/addswap, swapon/ can be enabled to issue orders
media/memory/addswap
Wherein, mkswap represents to set exchange area (swap area), and swapon represents activation system exchange area (swap
area)。
Perform free-m orders, the virtual memory checked after the increase of the linux system.
Perform free-m orders can check in linux system it is existing it is interior have much, used how many, virtual memory has
It is much, used how many, and default size can have been found more than virtual memory after performing the order.
Certainly, if it is desired to delete the part Installed System Memory of increase, procedure below can be passed through：
Swapoff-v/media/memory/addswap is performed, wherein swapoff orders can close exchange partition.
In one embodiment, the first object disk for determining to whether there is no carry in the linux system
Subregion, including：
The first object disk partition for not having carry in the linux system is obtained by performing fdisk-l orders
Use information, to determine to whether there is the first object disk partition of no carry in the linux system；
After fdisk-l orders are performed, the service condition of the disk partition of no carry can be checked, according to whether display
There is result to determine whether there is first object disk partition.
The use information for determining each disk partition of carry in the linux system, including：
The use information of each disk partition of carry is obtained in the linux system by performing df-h orders.
As shown in figure 3, the present invention also provides a kind of expanding unit of virtual memory, including：Creation module 301, for
The virtual memory file of a default size is created under the root of linux system；
First determining module 302, for determining in the linux system with the presence or absence of the first object disk of no carry
Subregion；
Newly-built module 303, for when the first object disk partition be present, in the media texts of the linux system
Newly-built first object catalogue under part；
Carry module 304, for by the first object disk partition carry under the first object catalogue；
First mobile module 305, will for the virtual memory file to be moved into the first object disk partition
The virtual memory of the linux system increases the default size.
As shown in figure 4, in one embodiment, described device also includes：
Second determining module 401, for when in the absence of the first object disk partition, determining the linux system
In each disk partition of carry use information；
3rd determining module 402, for the use information according to each disk partition, determine disk residual capacity most
The second big target disk subregion；
Second mobile module 403, will for the virtual memory file to be moved into the second target disk subregion
The virtual memory of the linux system increases the default size.
As shown in figure 5, in one embodiment, described device also includes：
Module 501 is enabled, for enabling the virtual memory file；
Execution module 502, for performing free-m orders, the virtual memory checked after the increase of the linux system.
As shown in fig. 6, in one embodiment, first determining module 302 includes：
First acquisition submodule 3021, for not hung by performing fdisk-l orders to obtain in the linux system
The use information of the first object disk partition of load, to determine to whether there is the first mesh of no carry in the linux system
Mark disk partition；
Second determining module 401 includes：
Second acquisition submodule 4011, for obtaining in the linux system carry by performing df-h orders
Each disk partition use information.
On the device in above-described embodiment, wherein modules perform the concrete mode of operation in relevant this method
Embodiment in be described in detail, explanation will be not set forth in detail herein.
Finally, the expanding unit of the virtual memory in the present invention is applied to terminal device.For example, it may be mobile phone,
Computer, digital broadcast terminal, messaging devices, game console, tablet device, Medical Devices, body-building equipment, individual number
Word assistant etc..
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can use the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the present invention can use the computer for wherein including computer usable program code in one or more
The shape for the computer program product that usable storage medium is implemented on (including but is not limited to magnetic disk storage and optical memory etc.)
Formula.
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (6)
- A kind of 1. extended method of virtual memory, it is characterised in that including：The virtual memory file of a default size is created under the root of linux system；Determine in the linux system with the presence or absence of the first object disk partition of no carry；When the first object disk partition be present, the newly-built first object mesh under the media files of the linux system Record；By the first object disk partition carry under the first object catalogue；The virtual memory file is moved to the first object disk partition, by the virtual memory of the linux system Increase the default size；Methods described also includes：When in the absence of the first object disk partition, each disk partition of carry in the linux system is determined Use information；According to the use information of each disk partition, the second maximum target disk subregion of disk residual capacity is determined；The virtual memory file is moved to the second target disk subregion, by the virtual memory of the linux system Increase the default size.
- 2. according to the method for claim 1, it is characterised in that methods described also includes：Enable the virtual memory file；Perform free-m orders, the virtual memory checked after the increase of the linux system.
- 3. method according to any one of claim 1 to 2, it is characterised in thatThe first object disk partition for determining to whether there is no carry in the linux system, including：The use for the first object disk partition for not having carry in the linux system is obtained by performing fdisk-l orders Information, to determine to whether there is the first object disk partition of no carry in the linux system；The use information for determining each disk partition of carry in the linux system, including：The use information of each disk partition of carry is obtained in the linux system by performing df-h orders.
- A kind of 4. expanding unit of virtual memory, it is characterised in that including：Creation module, for creating the virtual memory file of a default size under the root of linux system；First determining module, for determining in the linux system with the presence or absence of the first object disk partition of no carry；Newly-built module is new under the media files of the linux system for when the first object disk partition be present Build first object catalogue；Carry module, for by the first object disk partition carry under the first object catalogue；First mobile module, for the virtual memory file to be moved into the first object disk partition, by described in The virtual memory of linux system increases the default size；Described device also includes：Second determining module, for when in the absence of the first object disk partition, determining to have hung in the linux system The use information of each disk partition carried；3rd determining module, for the use information according to each disk partition, determine disk residual capacity it is maximum the Two target disk subregions；Second mobile module, for the virtual memory file to be moved into the second target disk subregion, by described in The virtual memory of linux system increases the default size.
- 5. device according to claim 4, it is characterised in that described device also includes：Module is enabled, for enabling the virtual memory file；Execution module, for performing free-m orders, the virtual memory checked after the increase of the linux system.
- 6. the device according to claim 4 or 5, it is characterised in thatFirst determining module includes：First acquisition submodule, for not having the first of carry in the linux system by performing fdisk-l orders to obtain The use information of target disk subregion, to determine in the linux system with the presence or absence of the first object disk point of no carry Area；Second determining module includes：Second acquisition submodule, for obtaining in the linux system each disk of carry by performing df-h orders The use information of subregion.
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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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| 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 |
| CN107861790B (en) * | 2017-10-27 | 2020-05-15 | 新华三云计算技术有限公司 | Virtual machine disk space expansion method and device, host machine and readable storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN103150179A (en) * | 2013-02-07 | 2013-06-12 | 宝龙计算机系统（湖南）有限公司 | Method and device for obtaining swap space in UNIX-like operation system |
-
2015
- 2015-09-25 CN CN201510624859.4A patent/CN105159619B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN103150179A (en) * | 2013-02-07 | 2013-06-12 | 宝龙计算机系统（湖南）有限公司 | Method and device for obtaining swap space in UNIX-like operation system |
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