CN103927215B - Optimization method and system based on ram disk and the kvm scheduling virtual machines of SSD hard disks - Google Patents
Optimization method and system based on ram disk and the kvm scheduling virtual machines of SSD hard disks Download PDFInfo
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Abstract
The invention discloses the optimization method based on ram disk and the kvm scheduling virtual machines of SSD hard disks and system, first, foundation image, installation operation system are generated, and configure system environments；Judge in tmpfs file system/whether the remaining spaces of dev/shm catalogues be more than preset value, if, then by under foundation image storage to/dev/shm catalogues, and increment mirror image is generated based on foundation image, by under increment mirrored storage to/dev/shm catalogues, otherwise by foundation image storage into SSD hard disks, and increment mirror image is generated based on foundation image, by increment mirrored storage into SSD hard disks.Method and system of the present invention, the advantage for making full use of ram disk IO read or write speeds fast, and the utilization of SSD disks is combined, optimize the scheduling of kvm virtual machines.
Description
Technical field
The present invention relates to technical field of virtualization, more particularly to based on ram disk and the kvm scheduling virtual machines of SSD hard disks
Optimization method and system.
Background technology
With the fast development of virtualization, virtual machine plays vital effect as key factor therein, each
Secondary node is calculated, and is all the quick calculating by many virtual machines and output result, most at last result output to user.Virtually
Change has been that one kind of current cloud computing is widely used, and supports the product of virtualization to have much at present, such as Virtual Pc,
How VmWare, VirtualBox, Kvm etc., efficiently use virtualization product, realizes the maximum using then of each dummy node
It is particularly important.
For the use of virtualization, it is desirable to improve utilization ratio, it is necessary to which large-scale concurrent is disposed, and at this point for virtual machine
Scheduling use, it appears very crucial, the disk read-write of virtual machine is all a bottleneck of virtualization all the time, most at present
The use of virtualization product is all based on the read-write of ordinary magnetic disc, and speed is not very high.Now universal improvement way is by void
The mirrored storage of plan machine is in disk or SSD solid state hard disc, but the reading speed of disk is far below internal memory IO read-write,
It is still not high that it reads and writes speed.
The content of the invention
For above-mentioned technical problem, the invention provides the optimization based on ram disk Yu the kvm scheduling virtual machines of SSD hard disks
Method and system, this method realizes a kind of new virtual machine mirror by using storage medium of the ram disk as image file
As using model, virtual machine reading speed is substantially increased.
The present invention adopts with the following method to realize：Optimization side based on ram disk Yu the kvm scheduling virtual machines of SSD hard disks
Method, including：
Foundation image, installation operation system are generated, and configures system environments；
Judge in tmpfs file system/whether the remaining spaces of dev/shm catalogues be more than preset value, if so, then by basis
Mirrored storage generates increment mirror image to under/dev/shm catalogues based on foundation image, by increment mirrored storage to/dev/shm
Under catalogue, otherwise by foundation image storage into SSD hard disks, and increment mirror image is generated based on foundation image, increment mirror image is deposited
Store up in SSD hard disks；The preset value is to be set according to experience or the size of foundation image；
Run the virtual machine based on increment mirror image；
The snapshot document produced during virtual machine operation is preserved, and by snapshot document storage into SSD hard disks.
Wherein, foundation image is backing file, also referred to as base-image.
Further, it is described to be under increment mirrored storage to/dev/shm catalogues：Judge described/dev/shm catalogues
Whether remaining space stores increment mirror image enough, if so, then by under increment mirrored storage to/dev/shm catalogues, otherwise by increment
Mirrored storage is into SSD hard disks.
Wherein, increment mirror image is much smaller for foundation image, so can not before storage increment mirror image
The remaining space gone in judgement/dev/shm, but as the method more optimized, by increment mirrored storage to/dev/shm
Before, it should judge whether its remaining space is enough.
The present invention is realized using following system：Optimization system based on ram disk Yu the kvm scheduling virtual machines of SSD hard disks
System, including：
Foundation image generation module, for generating foundation image, installation operation system, and configures system environments；
Determination module, for judging in tmpfs file system/whether the remaining spaces of dev/shm catalogues be more than preset value,
If so, then by under foundation image storage to/dev/shm catalogues, and increment mirror image is generated based on foundation image, increment mirror image is deposited
Store up/dev/shm catalogues under, otherwise by foundation image storage into SSD hard disks, and based on foundation image generate increment mirror image,
By increment mirrored storage into SSD hard disks；
Performing module, for running the virtual machine based on increment mirror image, preserves the snapshot text produced during virtual machine operation
Part, and by snapshot document storage into SSD hard disks.
Wherein, foundation image is backing file, also referred to as base-image.
Further, it is described to be under increment mirrored storage to/dev/shm catalogues：Judge described/dev/shm catalogues
Whether remaining space stores increment mirror image enough, if so, then by under increment mirrored storage to/dev/shm catalogues, otherwise by increment
Mirrored storage is into SSD hard disks.
Wherein, increment mirror image is much smaller for foundation image, so can not before storage increment mirror image
The remaining space gone in judgement/dev/shm, but as the method more optimized, by increment mirrored storage to/dev/shm
Before, it should judge whether its remaining space is enough.
In summary, the invention provides the optimization method based on ram disk and the kvm scheduling virtual machines of SSD hard disks and it is
System, if check tmpfs systems /remaining spaces of dev/shm catalogues is sufficiently large, the foundation image of generation is stored in/
Under dev/shm catalogues, and by the increment mirror image generated based on the foundation image also as far as possible be stored in/dev/shm catalogues under, such as
The remaining space of fruit tmpfs systems is not enough, by foundation image and increment mirrored storage under SSD disks.So as in making full use of
The fast advantage of read or write speed of depositing, improves the opening speed and resume speed of virtual machine, optimizes virtualization scheduling process.
Brief description of the drawings
In order to illustrate more clearly of technical scheme, letter will be made to the required accompanying drawing used in embodiment below
Singly introduce, it should be apparent that, drawings in the following description are only some embodiments described in the present invention, for this area
For those of ordinary skill, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
The optimization method flow chart based on ram disk Yu the kvm scheduling virtual machines of SSD hard disks that Fig. 1 provides for the present invention；
The optimization system construction drawing based on ram disk Yu the kvm scheduling virtual machines of SSD hard disks that Fig. 2 provides for the present invention.
Embodiment
The present invention gives the optimization method based on ram disk and the kvm scheduling virtual machines of SSD hard disks and system, in order that
Those skilled in the art more fully understand the technical scheme in the embodiment of the present invention, and make the above-mentioned purpose of the present invention, feature
Can be more obvious understandable with advantage, technical scheme in the present invention is described in further detail below in conjunction with the accompanying drawings：
Present invention firstly provides the optimization method based on ram disk Yu the kvm scheduling virtual machines of SSD hard disks, such as Fig. 1 institutes
Show, including：
S101 generates foundation image, installation operation system, and configures system environments；
For example, generating foundation image by qemu-img orders, form is qcow2, and size is 16G, then passes through iso mirrors
As file, installation operation system configures the system environments of foundation image；
S102 judged in tmpfs file system/whether the remaining spaces of dev/shm catalogues be more than preset value, if so, then holding
Row S103, otherwise performs S104；
S103 generates increment mirror image by under foundation image storage to/dev/shm catalogues based on foundation image, by increment
Mirrored storage continues executing with S105 to under/dev/shm catalogues；Take full advantage of the quick IO literacies of ram disk so that
Virtual machine can be opened quickly；
S104 stores foundation image into SSD hard disks, and generates increment mirror image based on foundation image, and increment mirror image is deposited
Store up in SSD hard disks, and continue executing with S105；
If tmpfs file system /remaining spaces of dev/shm catalogues is not enough, will foundation image or increment mirror image
Be copied to/dev/shm catalogues under, then may cause the loss of image file data；
S105 runs the virtual machine based on increment mirror image；
S106 preserves the snapshot document produced during virtual machine operation, and by snapshot document storage into SSD hard disks.
Open after virtual machine, run certain time, preserve the snapshot document of virtual machine, because snapshot document is all larger,
So being saved in SSD disks, the utilization rate of SSD disks is improved.
Preferably, it is described can with the following method to be replaced under increment mirrored storage to/dev/shm catalogues：Described in judging/
Whether the remaining space of dev/shm catalogues stores increment mirror image enough, if so, then by increment mirrored storage to/dev/shm catalogues
Under, otherwise by increment mirrored storage into SSD hard disks.
If the remaining space of/dev/shm catalogues is sufficient, based on foundation image, increment is created by qemu-img orders
Mirror image, and by increment mirrored storage to tmpfs file system /dev/shm catalogues under, take full advantage of the High-speed I/O of ram disk
Literacy, and the less advantage of increment mirror image, can quickly open the virtual machine of increment mirror image.
Present invention also offers the optimization system based on ram disk Yu the kvm scheduling virtual machines of SSD hard disks, as shown in Fig. 2
Including：
Foundation image generation module 201, for generating foundation image, installation operation system, and configures system environments；
Determination module 202, for judging in tmpfs file system/that whether the remaining spaces of dev/shm catalogues is more than is default
Value, if so, then by under foundation image storage to/dev/shm catalogues, and increment mirror image is generated based on foundation image, by increment mirror
As under storage to/dev/shm catalogues, otherwise by foundation image storage into SSD hard disks, and increment mirror is generated based on foundation image
Picture, by increment mirrored storage into SSD hard disks；
Performing module 203, for running the virtual machine based on increment mirror image, preserves the snapshot produced during virtual machine operation
File, and by snapshot document storage into SSD hard disks.
Preferably, it is described to be under increment mirrored storage to/dev/shm catalogues：Judge the surplus of described/dev/shm catalogues
Whether complementary space stores increment mirror image enough, if so, then by under increment mirrored storage to/dev/shm catalogues, otherwise by increment mirror
As storage is into SSD hard disks
As described above, The present invention gives the optimization method based on ram disk and the kvm scheduling virtual machines of SSD hard disks and being
The specific embodiment of system, the difference of itself and conventional method is that most virtualization products is all based on ordinary magnetic disc at present
Read-write, speed is not very high, there is also the situation that virtual machine image is stored in disk or SSD solid state hard discs, but is read
Speed is not still high.Method and system given by the present invention is by for tmpfs file system/dev/shm catalogues
The judgement of remaining space, in the case that remaining space is sufficient, as far as possible by under image file storage to/dev/shm catalogues, so that
Using the literacy of ram disk high speed, the scheduling of virtual machine is optimized, the opening speed and resume speed of virtual machine is improved.
Above example is used to illustrative and not limiting technical scheme.Appointing for spirit and scope of the invention is not departed from
What modification or local replacement, all should cover among scope of the presently claimed invention.
Claims (4)
1. the optimization method based on ram disk Yu the kvm scheduling virtual machines of SSD hard disks, it is characterised in that including：
Foundation image, installation operation system are generated, and configures system environments；
Judge in tmpfs file system/whether the remaining spaces of dev/shm catalogues be more than preset value, if so, then by foundation image
Store/dev/shm catalogues under, and based on foundation image generate increment mirror image, by increment mirrored storage to/dev/shm catalogues
Under, otherwise by foundation image storage into SSD hard disks, and increment mirror image is generated based on foundation image, increment mirrored storage is arrived
In SSD hard disks；
Run the virtual machine based on increment mirror image；
The snapshot document produced during virtual machine operation is preserved, and by snapshot document storage into SSD hard disks.
2. the method as described in claim 1, it is characterised in that described to be under increment mirrored storage to/dev/shm catalogues：
Judge whether the remaining space of described/dev/shm catalogues stores increment mirror image enough, if so, then by increment mirrored storage to/
Under dev/shm catalogues, otherwise by increment mirrored storage into SSD hard disks.
3. the optimization system based on ram disk Yu the kvm scheduling virtual machines of SSD hard disks, it is characterised in that including：
Foundation image generation module, for generating foundation image, installation operation system, and configures system environments；
Determination module, for judging in tmpfs file system/whether the remaining spaces of dev/shm catalogues be more than preset value, if
It is then by under foundation image storage to/dev/shm catalogues, and increment mirror image to be generated based on foundation image, by increment mirrored storage
Under to/dev/shm catalogues, otherwise by foundation image storage into SSD hard disks, and increment mirror image is generated based on foundation image, will
Increment mirrored storage is into SSD hard disks；
Performing module, for running the virtual machine based on increment mirror image, preserves the snapshot document produced during virtual machine operation, and
By snapshot document storage into SSD hard disks.
4. system as claimed in claim 3, it is characterised in that described to be under increment mirrored storage to/dev/shm catalogues：
Judge whether the remaining space of described/dev/shm catalogues stores increment mirror image enough, if so, then by increment mirrored storage to/
Under dev/shm catalogues, otherwise by increment mirrored storage into SSD hard disks.
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| CN105487898A (en) * | 2015-11-27 | 2016-04-13 | 国云科技股份有限公司 | Method for improving batch power-on/power off speed of virtual machines |
| CN106325944A (en) * | 2016-08-26 | 2017-01-11 | 浪潮电子信息产业股份有限公司 | Method for using KVM (Keyboard Video Mouse) to mount and install system |
| CN107608760A (en) * | 2017-09-14 | 2018-01-19 | 郑州云海信息技术有限公司 | A kind of kvm virtual machine deployment methods, system and computer-readable recording medium |
| CN108319524A (en) * | 2018-02-02 | 2018-07-24 | 郑州云海信息技术有限公司 | A kind of method and device that baseboard management controller passes through KVM carry files |
| CN111104129B (en) * | 2019-12-11 | 2023-02-28 | 秒针信息技术有限公司 | Memory operating system manufacturing method and device, electronic equipment and storage medium |
| CN113127430B (en) * | 2019-12-30 | 2024-05-03 | 北京懿医云科技有限公司 | Mirror image information processing method, mirror image information processing device, computer readable medium and electronic equipment |
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Denomination of invention: kvm virtual machine scheduling optimization method and system based on memory disk and SSD disk Effective date of registration: 20190718 Granted publication date: 20170901 Pledgee: Bank of Longjiang, Limited by Share Ltd, Harbin Limin branch Pledgor: Harbin antiy Technology Group Limited by Share Ltd Registration number: 2019230000007 |
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Address after: 150010 Heilongjiang science and technology innovation city, Harbin new and high tech Industrial Development Zone, No. 7 building, innovation and entrepreneurship Plaza, 838 Patentee after: Antan Technology Group Co.,Ltd. Address before: 150010 Heilongjiang science and technology innovation city, Harbin new and high tech Industrial Development Zone, No. 7 building, innovation and entrepreneurship Plaza, 838 Patentee before: Harbin Antian Science and Technology Group Co.,Ltd. |
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Date of cancellation: 20211119 Granted publication date: 20170901 Pledgee: Bank of Longjiang Limited by Share Ltd. Harbin Limin branch Pledgor: Harbin Antian Science and Technology Group Co.,Ltd. Registration number: 2019230000007 |