CN107305505A - The operation method and virtual platform of virtual platform - Google Patents
The operation method and virtual platform of virtual platform Download PDFInfo
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- CN107305505A CN107305505A CN201610248522.2A CN201610248522A CN107305505A CN 107305505 A CN107305505 A CN 107305505A CN 201610248522 A CN201610248522 A CN 201610248522A CN 107305505 A CN107305505 A CN 107305505A
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- resource
- base station
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
- G06F9/5061—Partitioning or combining of resources
- G06F9/5077—Logical partitioning of resources; Management or configuration of virtualized resources
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
Abstract
The embodiment of the present invention proposes the operation method and running gear of a kind of virtual platform, and the operation method includes：In the virtual platform based on base station, the physical resource of base station is mapped as virtual resource；According to the virtual resource, generation includes the resource pool of the virtual resource in the virtual platform；Receive the resource request of the client operating system of the base station；It is the client operating system scheduling resource from the resource pool according to the resource request.Apply the technical scheme of the present invention, resource that can be between Parallel Scheduling base station and base station lifts the resource coordinating ability and resource utilization of base station.
Description
Technical field
The present invention relates to operation method and the virtualization of communication technical field, more particularly to a kind of virtual platform
Platform.
Background technology
Due to wireless mobile telecommunication technology develop rapidly and 4G and future 5G technologies application, wireless base
Stand the situations such as the growth and the processing of control task that will face data service.In this case, if wirelessly
Base station is still to ensure the normal operation based on multiple-bearer and multi-standard wireless task, then needs base station platform system
All base stations for possessing within the specific limits of resource management mechanism can smoothly obtain resource and complete task
Ability, that is, possess the ability of tasks in parallel, parallel acquisition resource and resource coordinating.
But, current base station operation system, its resource is (for example：Internal memory, IO (Input/Output, it is defeated
Enter output) and CPU (Central Process Unit, CPU) etc.) administrative mechanism substantially
For serial mechanism, multi-task parallel is not supported to obtain resource, i.e., for the parallel task of logic.Actually only
Have after current task completes resource release, other parallel tasks can just obtain resource and implement operation.Together
When, can not be real for the slack resources beyond scheduling scope because native operating system does not support resource coordinating
Now dispatch, that is, there are slack resources and can not obtain, there is a situation where efficient resource and cannot dispatch, meeting
Cause the wasting of resources and the low result of utilization rate.Thus, native operating system does not support multi-task parallel to obtain
Resource and resource are cooperateed between multitask.So, task can be faced using native operating system because can not obtain
Take efficient resource and the situation of scheduling can not be obtained, task blocking, loss of data, system exception can be caused very
To the machine of delaying, and task is more, and risk is bigger.The native operating system that i.e. base station is used can not be met not
Carry out the mission requirements of the big business of radio communication big data.
Therefore, it is the following big business of wireless mobile communications of satisfaction and the demand of big data quantity, it is necessary to provide one
The mechanism of tasks in parallel, parallel acquisition resource and resource coordinating can be realized by planting.
The content of the invention
Technical problem to be solved of the embodiment of the present invention is can only be serial for the resource of base station in the prior art
The problem of using, being capable of Parallel Scheduling there is provided a kind of operation method of virtual platform and virtual platform
Resource between base station and base station, lifts the resource coordinating ability and resource utilization of base station.
The embodiment of the present invention is as follows to solve the technical scheme that above-mentioned technical problem is provided：
A kind of operation method of virtual platform, methods described includes：
In the virtual platform based on base station, the physical resource of base station is mapped as virtual resource；
According to the virtual resource, generation includes the resource pool of the virtual resource in the virtual platform；
Receive the resource request of the client operating system of the base station；
It is the client operating system scheduling resource from the resource pool according to the resource request.
Wherein, the physical resource of the base station includes：Cpu resource, memory source, I/O device resource and net
Network resource, the virtual resource accordingly includes：Virtual cpu resource, virtual memory resource, virtual IO
Device resource and virtual network resource.
Wherein, the virtual platform is the exclusive virtual platform for being specific to the base station.
Wherein, it is described according to the resource request, it is that the client operating system is adjusted from the resource pool
The step of degree resource, includes：
The corresponding exclusive virtual platform in the base station, from the money of the corresponding exclusive virtual platform in the base station
Source pond is that the client operating system distributes resource.
Wherein, it is described according to the resource request, it is that the client operating system is adjusted from the resource pool
The step of degree resource, also includes：
When the corresponding exclusive virtual platform in the base station cannot respond to the resource request because of resource shortage,
The corresponding exclusive virtual platform in the base station to the corresponding exclusive virtual platform in other base stations be the client
Hold operating system request resource.
Wherein, the virtual platform is the shared virtual platform of multiple base stations.
Wherein, after the shared virtual platform receives the resource request, from the client operation
For the resource needed for the client operating system is dispatched in the corresponding resource pool in base station belonging to system.
Wherein, the resource needed for lacking in the corresponding resource pool in base station belonging to the client operating system
When, based on predetermined policy from the corresponding resource pool in other base stations for the client operating system scheduling needed for
Resource.
Wherein, the predetermined policy includes：The distance between other described base stations and the affiliated base station.
Wherein, the virtual platform is two-stage virtual platform, and the two-stage virtual platform includes：Base station
Internal virtual platform, and the virtual platform outside base station；Wherein, it is virtual outside the base station
Change the shared virtual platform that platform is all base stations.
Wherein, the virtual platform of the inside of base station is responsible for the client operating system of inside of base station in base
The internal virtual platform done outside scheduling of resource, the base station of standing is responsible for client operating system in base station
Between do scheduling of resource.
Correspondingly, present invention also offers a kind of virtual platform, set up based on base station, including：
Mapping block, for the physical resource of the base station to be mapped as into virtual resource；
Generation module, for the virtual resource being mapped to according to the mapping block, in the virtualization
Generation includes the resource pool of the virtual resource in platform；
Receiving module, the resource request of the client operating system for receiving the base station；
Scheduling of resource module, for the resource request received according to the receiving module, from the life
It is the client operating system scheduling resource in the resource pool generated into module.
Wherein, the physical resource of the base station includes：Cpu resource, memory source, I/O device resource and net
Network resource, the virtual resource accordingly includes：Virtual cpu resource, virtual memory resource, virtual IO
Device resource and virtual network resource.
Wherein, the virtual platform is the exclusive virtual platform for being specific to the base station.
Wherein, the scheduling of resource module, after receiving resource request in the receiving module,
It is client operating system distribution resource from the resource pool of the corresponding exclusive virtual platform in the base station.
Wherein, the scheduling of resource module, is additionally operable to when the corresponding exclusive virtual platform in the base station is because of money
It is corresponding exclusive to other base stations when source lacks and cannot respond to the resource request that the receiving module is received
Virtual platform is that the client operating system asks resource.
Wherein, the virtual platform is the shared virtual platform of multiple base stations.
Wherein, the scheduling of resource module, after receiving resource request in the receiving module,
It is the client operating system scheduling from the corresponding resource pool in the base station belonging to the client operating system
Required resource.
Wherein, the scheduling of resource module, is additionally operable to when the base station correspondence belonging to the client operating system
Resource pool in when lacking required resource, from the correspondence resource pool of other base stations be described based on predetermined policy
Resource needed for client operating system scheduling.
Wherein, the virtual platform is two-stage virtual platform, and the two-stage virtual platform includes：Base station
Internal virtual platform, and the virtual platform outside base station；Wherein, it is virtual outside the base station
Change the shared virtual platform that platform is all base stations.
Wherein, the virtual platform of the inside of base station is responsible for the client operating system of inside of base station in base
The internal virtual platform done outside scheduling of resource, the base station of standing is responsible for client operating system in base station
Between do scheduling of resource.
The beneficial effect of the embodiment of the present invention is：
The operation method and virtual platform of virtual platform provided in an embodiment of the present invention, by based on base
In the virtual platform stood, the physical resource of base station is mapped as virtual resource first；Simultaneously according to virtual money
Source, generation includes the resource pool of virtual resource in virtual platform；And grasped in the client for receiving base station
When making the resource request of system, it can be dispatched according to resource request from resource pool for client operating system
Resource.Due to by physical resource mapping for virtual resource pool, therefore, when receiving resource request,
The Parallel Scheduling of the resource in resource pool can be realized based on the virtual platform, and then base station money can be improved
The cooperative ability and utilization rate in source.
Brief description of the drawings
Fig. 1 is the operational process schematic diagram of base station virtualization platform；
Fig. 2 is the schematic diagram of mapping relations of the virtual resource between GuestOS and physical resource；
Fig. 3 .1 are an application examples of base station virtualization platform；
Fig. 3 .2 are the schematic diagrames of the resource impact relation of the application example of base station virtualization platform；
Fig. 4 is in the schematic diagram of an embodiment of the virtual platform for implementing resource management and collaboration in base station；
Fig. 5 is in the schematic diagram of another embodiment for the virtual platform for implementing resource management and collaboration in base station；
Fig. 6 is the schematic diagram of the embodiment for the virtual platform for implementing resource management and collaboration between base station；
Fig. 7 .1 implement resource management and the virtual platform cooperateed between base station, and (virtual platform is all base stations
Shared platform) embodiment schematic diagram；
Fig. 7 .2 have schematic diagram of the virtual platform when there is resource shortage；
Fig. 8 is the schematic diagram of the embodiment of secondary virtual platform；
Fig. 9 is the schematic diagram of the embodiment of base station virtualization platform.
Embodiment
In order that technical problem solved by the invention, technical scheme and beneficial effect are more clearly understood, with
Lower combination drawings and Examples, the present invention will be described in further detail.It should be appreciated that described herein
Specific embodiment only to explain the present invention, be not intended to limit the present invention.
The problem of for existing base station operation system.The virtual platform based on base station that the present invention is provided.The base
Virtual platform in base station is built upon the operating system on native operating system.Its service object be
Equivalent to client operating system, i.e. GuestOS (Guest Operating Systems, client operation system
System).And the resource that GuestOS is obtained can realize the scheduling of resource to internal process inside GuestOS.
Different objects (such as product or standard) individually possess GuestOS, for each product or standard, its
Experience is exclusive system resource, and system makes different GuestOS disposably be obtained according to configuration by once upper electricity
System resource is taken, the resource that its internal process is used is managed by GuestOS；And GuestOS resources are by base
Stand virtual platform centralized dispatching.
Also, the virtual platform based on base station of the present invention supports different GuestOS parallel to virtualization
Platform application and acquisition virtual resource, therefore, slack resources can realize that resource is assisted between different GuestOS
Together, the configuration and scheduling of resource is region be directly facing object collaboration, independently occupy resource for object, solve former
Have operating system can not support multi-task parallel obtain base station data caused by resource and resource coordinating lose,
The serious problems such as task blocking and base station resets, improve resource utilization and systematic function, improve the fortune of object
Row experience.
Specifically, actual physical resource virtually in virtual platform, is being formed virtualization money by the present invention
Source.Then these virtual resources are allocated using client operating system as to picture in virtual platform,
So as to realize that multi-task parallel obtains the purpose such as resource and resource coordinating.
In order to realize the purpose, the operational process of the virtual platform of the embodiment of the present invention as shown in figure 1, its
Including：
Step S11, hardware resource virtualization.
Wherein, hardware resource is physical resource.Specific virtualization mode may be referred to the description below：
First, virtual platform operates in core system layer, and GuestOS runs on application system level, should
Client layer is applied with program operation.Base station virtualization platform is faced downwards hard upwardly facing the GuestOS of base station
Part resource (i.e. physical resource).These hardware resources include but is not limited to：CPU, internal memory and I/O device,
In described below, also by mainly by taking the virtualization of cpu resource, memory source and I/O device resource as an example
Illustrate.And the realization of client GuestOS applications is firstly the need of in the scheduling and operation that obtain CPU
Deposit, next to that getting GuestOS applications realizes the IO needed.In the present invention, realize that hardware resource is empty
The essence of planization is exactly by the physics of the virtual resource and base station bottom hardware platform of the GuestOS applications of base station
Resource sets up the mechanism of mapping, referring specifically to Fig. 1.Virtual resource required for meeting GuestOS operations includes：
Virtual cpu, virtual memory and virtual IO devices, its being mapped as with corresponding physical resource are virtual by base station
Change platform and realize resource virtualizing, including：CPU virtualizations, internal memory virtualization and equipment I O virtualizations,
Referring to Fig. 2, virtual resource therein includes virtual cpu, virtual memory and virtual IO devices.Resource is virtual
The process of change is as follows：
1st, realize that CPU is virtualized：
CPU virtualizations are used as the scheduling of virtual platform with vCPU (virtual CPU, virtual center processor)
Unit, physical cpu is mapped as by virtual platform by virtual cpu, gets GuestOS operation
Operation on physical cpu.Namely CPU virtualizations realize that GuestOS is obtained by virtualizing scheduling
VCPU, and finally distribute the mechanism of physical cpu.The problem of mainly being solved to CPU scheduling is at one
On physical machine, multiple vCPU are given physical cpu resource allocation, solve the efficiency of system, real-time and
Handling capacity, at a fixed time it is interior each CPU time slice reasonable distribution give each GuestOS process；By void
Planization platform completes the scheduling to vCPU.
2nd, internal memory virtualization is realized：
The main task of internal memory virtualization realizes conversion of the address space by Virtual Space to physical space, internal memory
Virtualization supports the virtualization of address space, i.e. GVA by twice or more than twice address conversion
(Guest Virtual Address, client virtual address) arrives GPA (Guest Physics Address, visitor
Family machine physical address), to HPA (Host Physics Address, host physical address) conversion.Its
In, GVA to GPA conversion is determined by client software, and GPA to HPA conversion is by virtual platform
Determine, virtual platform has determined that GPA to HPA conversion when physical memory is distributed into client computer,
Platform records the mapping relations using internal data structure, and GVA is just deposited in the page table that GuestOS is set up
With HPA this mapping table.Virtual platform arrives HPA mapping relations according to GVA to GPA,
GVA to HPA mapping relations are calculated, the conversion of address twice or more than twice is completed.
3rd, realize that I/O device is virtualized
The main task of I/O virtualization is to realize IO, device virtualization and network virtualization, I/O device virtualization
By GuestOS I/O Request, the mapping of virtual unit and physical equipment is set up by setting up conversion table, i.e.,
By the acquisition for getting host physical equipment for asking completion client virtual equipment.It is virtual by setting up
IO and its equipment are empty when GuestOS has access to virtual I/O space to physics IO and its conversion table of equipment
Intend platform and intercept and capture the operation, and I/O Request is forwarded to by conversion table by equipment I O spaces.I/O device is virtual
The realization of change is based on producers and consumers' communication mode, GuestOS request is by shared drive and sets
The mapping and corresponding device scheduling of standby driving pass to device resource.
Step S12, generation resource pool.
Wherein, after the virtualization of physical resource is realized, it is necessary to the resource of virtualization is generated into resource pool,
In order to which the virtual resources in resource pool are distributed to GuestOS by virtual platform.Specifically, generation resource
The content of pond part may be referred to following：
Virtual platform provides system compatible for all bottom hardwares in base station, i.e., all hardware resource is provided
Corresponding chnnels of resources (including CPU, internal memory, IO, network and equipment) and calling interface (including CPU
Resource interface, memory source interface, I/O resource interface, Internet resources interface and device resource interface).Generation
The GuestOS that the purpose of resource pool makes the resource of base station be directed to base station is transparent, the visit of hardware resource
Ask and realize and control by base station virtualization platform, layer where GuestOS and the layer of the hardware platform where resource by
Virtual platform is directly isolated, and the access and control of hardware resource are implemented by base station virtualization platform,
Acquisitions and release of the GuestOS to resource also have base station virtualization platform to be managed and distribute；Bottom hardware
Resource under the control of base station virtualization platform according to different classification generate cpu resource pond, memory source pond,
I/O device resource pool.The resource that GuestOS is obtained is also by correspondence resource pool by base station virtualization platform
Virtual resource allocation and be scheduled to request resource GuestOS, and the virtual resource that GuestOS is used with
Control is in base station virtualization platform completely for mapping between hardware, and mapping therein is transparent to GuestOS
, the resource acquired in GuestOS is the abstract of bottom hardware resource in the definition of virtual platform, by base
The resource pool that virtual platform of standing is generated for different hardware resource is only in face of the retrievable resources of GuestOS.
The resource-sharing provided by resource pool makes each GuestOS obtain shared resource by virtual platform, that is, obtains
Virtual memory is taken, the scheduling of virtual cpu is obtained and obtains virtual IO devices, and it is (empty to get virtual resource
Intend CPU, virtual memory, virtual UO equipment) physical location be entirely for GuestOS it is transparent,
That is, the generation of resource pool can be with cross-region, the resource that GuestOS is obtained is not related to physical resource
Position, its physical resource can come from physical resource in different physical locations (such as different base station), resource pool
Integrated, management, tissue and distribution are implemented by virtual platform.
Step S13, realize scheduling of resource, management and cooperate with.
Wherein, after generation resource pool, you can to realize the scheduling, management and collaboration of resource.Retouch in detail
State as follows：
Virtual platform provides system compatible for all upper layer application GuestOS in base station, i.e., to all
GuestOS offer identical systems calling interface (including communication, hypercalls, BOOT, Debug and Direct
IO), scheduling of resource and calling interface (including cpu resource, memory source, I/O resource and device resource).
GuestOS is managed by virtual platform, and obtains resource (CPU, internal memory and IO by virtual platform application
Device resource), virtual platform is operated between hardware resource and GuestOS, is provided for each GuestOS
Resource management and scheduling, perform the privileged instruction to GuestOS；With access all free memories of system
Authority, is responsible for providing CPU scheduling, storage allocation and equipment I O to the virtual machine where GuestOS, virtually
Change platform and GuestOS and instruction sum is carried out by privileged domain (privileged domain has access equipment IO ability)
According to interaction, complete to implement scheduling of resource, resource allocation to GuestOS resource bid and to GuestOS
And resource reclaim, the resource of distribution is virtual resource, and virtual resource is by base station virtualization platform by resource pool
Obtain configuration and be scheduled to the party in request GueatOS of resource, GuestOS is obtained actual motion and scheduling
It is hardware physical resource, but configuration physical resource is with the overall process for obtaining physics scheduling and to physics money
Physical property such as the characteristic in source and position etc., all transparent to GuestOS, these are completely by the virtual of base station
Change platform courses and management, in order to which effective idle physical resource to diverse location and different geographical is received
Enter resource pool, be easy to the centralized management to resource, effectively realize the scheduling to resource requirement side GuestOS.
And divided by resource, the configuration and scheduling of subregion and resource are completed inside GuestOS, are to use
Applied in resource and separation is realized between different GuestOS, GuestOS only accesses the resource of oneself, protected
The isolating of data, parallel and security are demonstrate,proved.
It is the summary to the main contents of the embodiment of the present invention above, it is following to enumerate some application examples, so as to
In understanding present disclosure.
Using one：The instantiation application of base station virtualization platform
The instantiation of base station virtualization platform is applied referring to Fig. 3 .1.The instantiation application mould of base station virtualization platform
Type is divided into three parts, physical platform, virtual platform and application platform.Physical platform is provided including hardware physics
Source, i.e. CPU, internal memory, IO, device drives and network.The hardware resource of physical platform is flat by virtualization
The virtual resource that platform is mapped as in resource pool, resource pool is all GuestOS shared resource, these resources
GuestOS resource request is responded by base station virtualization platform by the management and collaboration of base station virtualization platform,
Wherein GuestOS is the management object of base station virtualization platform, GuestOS and base station virtualization platform from
Category relation is logic subordinate, its subordinate relation be not dependent on GuestOS and corresponding base station physically from
Category relation, i.e. virtual objects dispatched required for resource independently of its slave base stations physically, it is independent
Physical location and physical characteristic in base station, the logic subordinate characteristic only defined to virtual resource are related, resource
Virtual resource in pond is scheduled to management object GuestOS by virtual platform, for user's application platform
GuestOS resource requests, base station virtualization platform is dispatched by virtual cpu, virtual memory is dispatched and virtual
I/O device is scheduled to GuestOS distribution virtual resource (virtual cpu resource, virtual memory resource and virtual
I/O device resource, virtual network resource) so that GuestOS is dispatched.The void of physical resource and resource pool
That intends resource is mapped as one-to-many mapping relations, shows physical resource by the scheduling according to base station virtualization platform,
, can be by task after virtual resource is released back into resource pool by obtaining the corresponding GuestOS tasks adapter of scheduling
Next GuestOS possesses real physical resource and dispatched in queue；In application platform,
It is (virtual cpu resource, virtual to the virtual resource of acquisition based on user class operating system inside GuestOS
Memory source and virtual IO devices resource) the independent money for implementing scheduling and management, virtual resource and user platform
Source request is one-to-one mapping relation.For user, GuestOS is operated on base station virtualization platform, is used
The virtual resource of family application is to be distributed and obtained by base station virtualization platform, the hardware resource pair of physical platform
GuestOS is transparent, and custom system level is concerned only with the virtual resource that oneself application is obtained, for corresponding
GuestOS, the process of scheduling could be obtained being assigned to actual physical resource, transparent for GuestOS, and
Only base station virtualization platform courses and management process.Equally, GuestOS is to the physics where hardware resource
Platform is also transparent, and hardware platform only has a calling interface with base station virtualization platform, physical platform for
Physical resource therein will be fully transparent corresponding to which GuestOS, the actual interface only source with physical platform
In base station virtualization platform；GuestOS and resource pool virtual resource allocation and the mapping relations of scheduling are empty by base station
The determination of planization platform, the mapping process and virtual resource and GuestOS mapping of physical resource and virtual resource
Process is two independent processes, and the mapping process of physical resource and virtual resource is empty in physical platform and base station
Between planization platform, resource pool virtual resource and GuestOS mapping process are in base station virtualization platform and use
Between the operating system GuestOS platforms of family, the resource impact of physical resource and user face physical platform and use
Family level platform is all transparent, and the mapping relations of physical resource and user resources only face base station virtualization platform.
Thus, base station virtualization platform possesses resource pool virtual resource and user's money for the user class platform on upper strata
The mapping mapping table in source, for the physical level platform of lower floor, possesses resource pool virtual resource and hardware money
The mapping mapping table in source, i.e. base station virtualization platform include two classes but are not limited to two class resource impact relations
The mapping table and resource pool virtual resource-hardware resource of table, i.e. resource pool virtual resource-user class resource are reflected
Relation table is penetrated, deeper into, should also there is the mapping table of hardware resource and user class resource, these moneys
Source mapping relations and the corresponding resource allocation relationship of resource impact relation, and i.e. resource allocation relationship is determined
User class GuestOS scheduling corresponding relation by base station virtualization platform architecture complete and implement run.
Resource impact relation is referring to Fig. 3 .2.Wherein physical platform is layer 0, and base station virtualization platform is layer 1,
User platform is layer 2.Layer 1 has two resources relationship mapping tables, and one is resource pool virtual resource and hardware money
The mapping table in source, one be resource pool virtual resource and user resources mapping table；Layer 0 is included
The resource impact relation of layer 0 and layer 1, i.e., the mapping relations of corresponding hardware resource and virtual resource；Layer 2 is wrapped
Mapping between the resource and correspondence virtual resource of the application of mapping table containing layer 2 Yu layer 1, i.e. user is closed
System.
Using two：Virtual platform based on inside of base station.In such a application, virtual platform is deployed in base
Stand internal.It is such a, based on the virtual platform for implementing resource management and collaboration in base station, there are two kinds to implement to answer
With：
1st, virtual platforms of the GuestOS in same base station
The GuestOS of virtual platform management is being deployed in same inside of base station, and GuestOS is same base
The virtual plate or the internal applications or other service applications on the base station of virtual plate for standing internal.Virtually
Change the GuestOS on all GuestOS scheduling and distribution resource of the platform for same inside of base station, the base station
The physical resource used both originates from the base station, i.e., on same base station, and the physical resource of same inside of base station leads to
Cross base station virtualization platform and be mapped as resource pool virtual resource, the GuestOS of same inside of base station passes through resource
Pond obtains the scheduling that virtual resource is accomplished GuestOS tasks.Referring to Fig. 4.
2nd, GuestOS (scene two) inside same inside of base station and slave base stations
Virtual platform is deployed in same inside of base station, and GuestOS is the virtual plate or void of same inside of base station
Intend the internal applications of plate, while the also Relay for the subordinate base station or other subordinate stations and its application.Virtually
Change all GuestOS distribution resources that platform is same inside of base station or slave base stations, same inside of base station
Virtual resource is mapped as by virtual platform with the physical resource of slave base stations and constitutes resource pool, same base station
The GuestOS of internal and slave base stations obtains scheduling of resource by resource pool.Referring to Fig. 5.
Using three：Virtual platform based on different base station.In such a application, GuestOS in different base station,
Virtual platform is in inside of base station.
Virtual platform is deployed in inside different base station, GuestOS be inside different base station respective virtual plate or
The internal applications of the virtual plate of person.The virtual platform of inside of base station completes to own for the inside of base station first
Communication between GuestOS scheduling of resource, base station is completed to communicate by the corresponding respective virtual platform in base station.
The GuestOS of inside of base station scheduling of resource is referring to implementation two.Resource for inside of base station can not expire
During the resource of sufficient GuestOS requests, base station (such as corresponding GuestOS of the base station n) resource request
Can (base station n) resource request be sent to other base stations as the base station.Other base stations (such as base station 1)
Base station virtualization platform be connected to the base station GuestOS request (this can be connected to by such as recognizing the base station of scope
Request), if the resource of base station 1 can meet the resource of request, just by the base station virtualization platform of base station 1
Resource request to base station n is replied, and gives resource distribution, is base station n GuestOSn
(GuestOSn1) dispatched because obtaining resource.
The resource request of GuestOS between base station and configuration are empty by the base station of respective base station to be dispatched
Sent between planization platform and confirm to reply and complete, i.e., external base station is also served as a GuestOS progress
Resource allocation, certain base station virtualization platform for meeting external base station resource request, the virtualization of the base station
Platform gives the distribution of virtual resource；For ungratified, it is linked into resource request queue and waits scheduling.It is i.e. every
GuestOS resource request and distribution of the virtual platform of individual base station all in face of internal virtual veneer, are also faced
External base station GuestOS resource request and distribution is come from, the GuestOS of inside of base station priority is higher than
The priority of GuestOS outside base station.Base station comes from the resource that external request is obtained getting, point
To equally being dispatched after the corresponding GuestOS in the base station.
By above procedure, base station virtualization platform can complete internal GuestOS resource requests and outside
GuestOS resource requests, the physical resource of base station can have part resource to share to external base station.That is base station
Physical resource inside virtual platform just completes inside of base station GuestOS resource request and money in upper electricity first
Source is distributed, if also there is idling-resource, reserves the standby resources of the base station, and remaining is used as the outside base of reply
The resource request and resource allocation stood, these resources are available for external base station GuestOS to wait in line scheduling of resource.
Referring to Fig. 6.
In Fig. 6, the red one of GuestOS for representing base station N is because resource is used up and can not met in figure
Resource request, base station N virtual platform sends resource request, the virtual platform of base station 1 be connected to this please
After asking, the resource allocation to base station N is completed using the idling-resource of resource pool.Referring to Fig. 6, for base station 1,
The resource request of inside of base station can be met；For base station N, part GuestOS resource request can expire
Foot；Meanwhile, there is unappeasable resource request in the N of base station, base station N virtual platform asks this
Resource conversion be to the outside request for applying for resource, if there is the resource of resource request can be met, its
Corresponding virtual platform then replies to base station 1 in the base station N virtual platforms requests, figure and meets the request,
Reply the resource request of base station N virtual platforms.The flow of resource request is referring between base station 1 and base station N
Resource request flow：GuestOSn1 resource requests inside 1 base station N；2 base station N resource pools can not expire
The foot request；3 base station N internal resource request is converted into external request, by base station N virtual platform
Send request；The virtual platform of 4 base stations 1 is connected to base station N resource request；5 base stations 1 meet base station
N resource request is simultaneously replied；6 base station N virtual platform is connected to reply resource reply and distributes to base
The GuestOSn1 resource requests stood inside N.
Using four：Shared virtual platform.That is base station common virtual platform.In such a application, GuestOS
For resource request unit, virtual platform is that all GuestOS have platform.
Inside of base station is not directed to the base station deployment virtual platform, but within the specific limits, all base stations are total to
There is a virtual platform, the virtual platform that the virtual platform has as all base stations, management is all
The resource request and resource allocation of base station, can be deployed in inside of base station, can also independently dispose.Virtualization
The unified inside of base station or all GuestOS distribution resources of subordinate base station for the range of definition of platform, and make
The GuestOS of the scope is dispatched.All inside of base station and the physics of their slave base stations are provided in the range of this
Source by base station virtualization platform be mapped as virtual resource constitute resource pool, should in the range of all inside of base station and
Their GuestOS of slave base stations obtain scheduling of resource by resource pool.Resource request is with each GuestOS
For unit, the GuestOS unified managements of all base stations under virtual platform administration are had, often increase by one
GuestOS, just completes registration, and completes GuestOS resource to reply under shared virtual platform.Referring to
Fig. 7 .1, it can be seen that shared virtual platform distributes resource in resource pool by GuestOS of slack resources,
It is that slack resources turn into occupancy resource.Resource acquisition flow is：GuestOS first is to shared virtual platform
Resource request is initiated, secondly shared virtual platform replys GuestOS resource request.
The scene of a more detailed step also includes, and GuestOS resource bid comes from physics and applied recently, such as when
It is not limited to come from virtual money of the GuestOS applications of base station 1 first by having virtual platform reply base station 1
Base station n virtual resource is replied in source ... ... base station n GuestOS applications by having virtual platform first,
When there is resource shortage, have virtual platform and resource bid is turned to shared virtual resource, by shared void
Intend resource and reply resource bid.The application of resource flow is referring to Fig. 7 .2 during for resource shortage.During resource shortage
Resource bid flow：1GuestOS initiates resource request to shared virtual platform, finds nearest resource shortage；
This application is converted into shared virtual resource application by 2 shared virtual platforms；3 shared virtual platform profits
GuestOS resource request is replied with shared resource.Wherein, resource shortage is transparent for GuestOS, complete
It is complete to be completed the migration to GuestOS application resource by having virtual platform and alloted, this process referring to
GuestOSn(1+j)。
Using five：Multi-level virtualization platform.By taking two-stage virtual platform as an example, exist based on base station virtualization
The shared virtual platform of platform.
There is two-stage virtual platform in the scene, one be inside of base station virtual platform, be primary virtual
Change platform；Another is the virtual platform outside base station, is secondary virtual platform, as based on base station
Shared virtual platform on virtual platform.Primary virtual Platform deployment is inside respective base station, two grades
Virtual platform is deployed in inside of base station or independent deployment.
Primary virtual platform is using the application of inside of base station as GuestOS, and to these inside of base station
GuestOS is managed and dispatched；Secondary virtual platform is shared virtual platform with primary virtual platform
For management and thread, due to primary virtual platform respective base station, it is possible to regard shared virtual as
Change platform using each base station as GusetOS, and these base stations GuestOS is managed and dispatched.As schemed
8, the application of the corresponding primary virtual platform management in base station 1 inside of base station
GuestOS11 ... ..., GuestOS1 (1+i), until base station n, the corresponding primary virtual platform pipes of base station n
The application GuestOSn1 of the inside of base station is managed ..., GuestOSn (1+j)；Secondary virtual platform is empty with one-level
The corresponding base station of planization platform is GuestOS, and these base stations GuestOS is managed and dispatched, right
In the GuestOS and its resource under secondary virtual platform, primary virtual platform be transparent.Two grades of void
Planization platform management and thread are the corresponding GuestOS in base station, the management and scheduling of primary virtual platform
Unit is the GuestOS inside respective base station.
When electric on the base station of secondary virtual platform, the base station managed on secondary virtual platform is used as one
The GuestOS of level virtual platform is to secondary virtual platform application resource.The lower thing of secondary virtual platform
Reason resource is the physical resource and extra shared physical resource of all base stations, and secondary virtual platform is being replied
During the base station resource request of primary virtual platform, it is first according to base station physical resource and carries out resource allocation.Ginseng
Seeing resource allocation flows of the Fig. 8 such as base station 1 is：1 base station 1GuestOS1 resource requests, 2 base stations
1GuestOS1 resources are replied；... the resource allocation flow for base station n is：1 base station nGuestOSn
Resource request；2 base station nGuestOSn resources are replied；Base station obtains the one-level of secondary virtual platform distribution
, should to internal GuestOS in inside of base station by primary virtual platform after virtual resource, i.e. base station resource
With resource allocation is carried out, such as inside of base station 1 completes returning for GuestOS11 to GuestOS1 (1+j) resource request
Multiple, this process is transparent for secondary virtual platform.
In addition, working as can not meet for primary virtual platform to the GuestOS of inside of base station resource request
When, it is necessary to the request be converted to base station be GuestOS request be transmitted to secondary virtual platform, by two grades
Virtual platform replies to the primary virtual platform base station requests by the shared virtual resource of resource pool, then
The GuestOS that the resource replys the request resource for being transmitted to inside of base station is converted by primary virtual platform；Referring to figure
8 such as, and GuestOS1 resource request can not be met inside the n of base station, and the resource request is put down by primary virtual
Platform is converted into base station GuestOSn resource request, and resource pool shared resource pair is passed through by secondary virtual platform
Primary virtual platform carries out resource reply, and primary virtual platform replys the resource be transmitted to GuestOSn1 again.
The scene needs all base station physical resources to carry out resource normalization management, normalizes the platform of management
Two grades and the base station virtualization platform of the above as based on base station, if there is virtual platform in itself in base station,
The base station virtualization platform based on virtual platform is evolved into, this patent is referred to as shared virtual platform.
On shared virtual platform, the physical resource of base station in itself is all as the thing of shared virtual platform
Manage resource and carry out unified planning, it is base station that physical resource, which includes inside of base station physical resource and separate physical resource,
Shared physical resource, these shared physical resources, the generation shared resource pond inside shared virtual platform.Base
Used physical resource when standing upper electric, is applied by base station as GuestOS, and resource acquiescence is planned to
The internal physical resource of the base station, is provided by inside of base station resource pool, referring to Fig. 8 left side GuestOS1
The resource request process of base station.If inside of base station resource pool can not meet request, the request is then provided to shortcoming
Source obtains resource to meet the overall resource request of the base station by shared resource pond, referring to Fig. 8 the right
The resource request process of GuestOSn base stations.Inside of base station is only handled using the virtual platform of i.e. inside of base station
GuestOS resource request and resource allocation.When the resource of inside of base station occurs deficient, by base station
The GuestOS resource requests in portion are converted to the resource request of base station, i.e., the base station as a GuestOS to
Virtual platform application resource, virtual platform processing comes from the resource request of base station.I.e. first by one-level
Virtual platform completes the resource request and resource allocation of the GuestOS based on inside of base station, makes GuestOS
Dispatched；Secondly, asked for the unappeasable GestOS of inside of base station, the secondary virtual platform
The shortage part of resource is further asked GuestOS to be asked by shared resource pond carries out resource allocation to meet this
Ask.
Above-mentioned Fig. 1 to Fig. 8 has been carried out in detail to the operation method of virtual platform provided in an embodiment of the present invention
Description, the virtual platform for employing above-mentioned operation method will be briefly described by Fig. 9 below.
It is understood that term involved in virtual platform and related work flow, reference can be made to the above method
Description, hereinafter no longer carry out repeat repeat.
Virtual platform provided in an embodiment of the present invention, its concrete structure can with as shown in fig. 9, it includes：
Mapping block 11, in the virtual platform based on base station, the physical resource of base station to be mapped as virtually
Resource；Generation module 12, for the virtual resource being mapped to according to mapping block 11, generation includes virtual money
The resource pool in source；Receiving module 13, the resource request of the client operating system for receiving base station；And
Scheduling of resource module 14, for the resource request received according to receiving module 14, from generation module
It is client operating system scheduling resource in the resource pool of 12 generations.
Summary content, the main contents of the virtual platform of the invention based on base station include：
The present invention can mainly apply resource distribution, scheduling of resource and the resource to the user class system task of base station
Collaboration.Virtual platform based on base station refers to dispose virtual platform in base station platform system, is based on operation
Super operation system on system, it create the abstract of bottom hardware platform, virtual objects GuestOS and
It is applied, and base station GuestOS is as management object using virtual machine as operation carrier, and virtual machine is GuestOS
Logical bearers, according to different scenes can be veneer, can also the physical carrier such as base station.Base station GuestOS
Work on virtual platform, GuestOS can be deployed between inside of base station, different base stations, or
GuestOS be exactly base station in itself, between each GuestOS based on virtual platform interaction collaboration complete resource be total to
Enjoy and resource coordinating, complete the communication between GuestOS and data transfer.
Virtual platform scheduling dispatches the framework there is provided abstraction interface using strategy and mechanism separate design,
Realize that scheduling is only needed by realizing that the interface defined in framework can perform.Virtual platform is built upon hardware
Realized on platform there is provided fictitious order to GuestOS resource distributions and scheduling, while hardware virtualization is supported
The traffic control to hardware resource of virtual platform.Virtual platform can capture cpu instruction, be visited for instruction
Ask that hardware control and peripheral hardware serve as intermediary.
Base station virtualization platform action is as follows：
1st, base station virtualization platform can as resource service side to base station GuestOS carry out resource, collaboration and
Scheduling, based on centralized virtual platform, realizes what inside of base station object and distributed base station object were needed
Unified management, scheduling and the collaboration of physical resource (CPU, internal memory and I/O device)；
2nd, virtual platform is passed through as the inside of base station object and distributed base station external object at resource client end
Apply for resource；
3rd, base station virtualization platform accompanies software definition for the identification of GuestOS clients, and is not limited to
Actual physical location.To realize indiscriminate base station GuestOS client application mechanism, GuestOS appoints
The limitation for being engaged in be not limited to physical location for the acquisition of resource is implemented to cooperate with and dispatched.
Virtual platform realizes virtualized that downwards the resource to virtualization generates resource pool to hardware resource, to
On to application layer operating system GuestOS provide obtain virtual resources plateform system interface, these resources
Obtained from resource pool, virtual platform isolates GuestOS and hardware resource, hardware resource pair by resource pool
It is transparent in GuestOS, so, scheduling and resource distribution of the virtual platform to GuestOS are similar
In scheduling and resource distribution of the original operating system to process.Thus, the pass that base station virtualization platform is related to
Key technology mainly include realize hardware resource virtualization, generate resource pool, realize resource distribution, scheduling and
Collaboration.
Virtual platform provided in an embodiment of the present invention based on base station, has physical resource flat by virtualization
The key technology of platform realizes that compatible operating system, resource scheduling management and system are called.Physical resource management is
Using virtual Cpu, virtual memory, virtual IO devices as resource pool, by GuestOS to virtual resource
Obtain and use, to realize the allotment and resource-sharing of shared resource.The resource of virtual platform based on base station
Scheduling and management, make base station shared resource be distributed between GuestOS and shared and recovery, realize GuestOS
Between communicated between communication, virtual platform and GuestOS, and the communication between virtual platform is greatly improved
Resource handling capacity and the system speed of response, and be allowed to maximize.
This resource management of base station virtualization platform and scheduling mode, can make the physics such as the position of resource special
Sex differernce is transparent for GuestOS user, i.e., GuestOS user need not pay close attention to the physics spy of resource presence
Sex differernce, and only need progress logic application to allocate virtual resource by virtual platform, beneficial to the system of resource
One management, unified allocation of resources and unified recovery, effectively increase the level of resources utilization, are asked beneficial to GuestOS
Collaboration, United Dispatching and the unified management of resource, task of realizing efficiently is dispatched, real time data is backed up, online
Or offline Parallel download, rapid restoring scene failure etc..Thus generally, fully improve GuestOS's
Tasks carrying efficiency, fully improves Consumer's Experience.
The embodiment of the present invention, isolation of the base station virtualization platform to GuestOS and hardware platform, makes different
Difference is not present for virtual platform in GuestOS system levels, and this characteristic can make GuestOS system layers
Face can transplant the application for other subregions without making an amendment, and only packing is changed, user level phase is changed in packing
Close data and configuration completes the replacing of application；Virtual platform to GuestOS United Dispatching and management significantly
Systematic function and system resource bandwidth are improved, system cost is substantially reduced.
The embodiment of the present invention, virtual platform can be unified to the resource that all GuestOS objects are used
Scheduling and management, these resources are registered as resource pool under virtual platform, and resource pool have registered all fixed
The virtual resource that adopted base station is used, including virtual cpu resource, virtual memory resource and virtual IO devices money
Source and virtual network resource so that idle resource can be scheduled and cooperate between all base stations,
Base station resource is carried out unified scheduling and management between inside of base station and base station, can be not only restricted to
The limitation of physical space, scheduling, virtualization are completed to the shared resource of base station between inside of base station and base station
Platform for virtual resource allot for ask resource client be transparent and unaware.Even for
The higher mass data business scenario of resource requirement can also complete base station resource and be scheduled and meet resource requirement,
Alleviate significantly mass data business because resource shortage occur moving back clothes, base station chain rupture or base station restart it is serious therefore
Barrier.
Using the method for the invention and system, compared with the base station platform for being currently based on legacy operating system,
The virtual platform of base station has traditional base station platform irreplaceable in the sense that operating system capability improving
Good Consumer's Experience, the ability of these liftings includes：The ability of tissue and collaboration physical resource, is practiced
The ability of system call, the lifting of performance and the Consumer's Experience ability of high-quality, the displacement energy of user's application scenarios
Power, improves system resource efficiency, reduces system cost.What thus the virtual platform based on base station was completed appoints
Business includes but is not limited to following aspect：Base station task concurrency operation, big data application Effec-tive Function, failure
Backup more than live fast quick-recovery, system and data, system high efficiency are transplanted, using light displacement, base station edition
Parallel download and quick upgrading etc..The hidden utilization rate with by system resource is effectively improved of base station virtualization platform,
Improve system resource bandwidth, improve system execution efficiency, system recover, upgrading, transplanting new opplication, be
System is backed up, opened up in the performance boost of the different application scene such as new website area.
One of ordinary skill in the art will appreciate that all or part of flow in above-described embodiment method is realized,
It can be by computer program to instruct the hardware of correlation to complete, described program can be stored in a calculating
In machine read/write memory medium, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.
Wherein, described storage medium can for magnetic disc, CD, read-only memory (Read-Only Memory,
) or random access memory (Random Access Memory, RAM) etc. ROM.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in this hair
Any modifications, equivalent substitutions and improvements made within bright spirit and principle etc., should be included in the present invention
Protection domain within.
Claims (21)
1. a kind of operation method of virtual platform, it is characterised in that methods described includes：
In the virtual platform based on base station, the physical resource of base station is mapped as virtual resource；
According to the virtual resource, generation includes the resource pool of the virtual resource in the virtual platform；
Receive the resource request of the client operating system of the base station；
It is the client operating system scheduling resource from the resource pool according to the resource request.
2. the method as described in claim 1, it is characterised in that the physical resource of the base station includes：CPU
Resource, memory source, I/O device resource and Internet resources, the virtual resource accordingly include：Virtual cpu
Resource, virtual memory resource, virtual IO devices resource and virtual network resource.
3. the method as described in claim 1, it is characterised in that the virtual platform is described to be specific to
The exclusive virtual platform of base station.
4. method as claimed in claim 3, it is characterised in that described according to the resource request, from institute
Stating in resource pool includes the step of be the client operating system scheduling resource：
The corresponding exclusive virtual platform in the base station, from the money of the corresponding exclusive virtual platform in the base station
Source pond is that the client operating system distributes resource.
5. method as claimed in claim 4, it is characterised in that described according to the resource request, from institute
Stating in resource pool also includes the step of be the client operating system scheduling resource：
When the corresponding exclusive virtual platform in the base station cannot respond to the resource request because of resource shortage,
The corresponding exclusive virtual platform in the base station to the corresponding exclusive virtual platform in other base stations be the client
Hold operating system request resource.
6. the method as described in claim 1, it is characterised in that the virtual platform is multiple base stations
Shared virtual platform.
7. method as claimed in claim 6, it is characterised in that the shared virtual platform receives institute
State after resource request, be the visitor from the corresponding resource pool in the base station belonging to the client operating system
Resource needed for the operating system scheduling of family end.
8. method as described in claim 7, it is characterised in that when belonging to the client operating system
The corresponding resource pool in base station in when lacking required resource, based on predetermined policy from the corresponding money in other base stations
For the resource needed for the client operating system is dispatched in the pond of source.
9. method as claimed in claim 8, it is characterised in that the predetermined policy includes：It is described other
The distance between base station and the affiliated base station.
10. the method as described in claim 1, it is characterised in that the virtual platform is that two-stage is virtual
Change platform, the two-stage virtual platform includes：The virtual platform of inside of base station, and the void outside base station
Planization platform；Wherein, the virtual platform outside the base station is the shared virtual platform of all base stations.
11. method as claimed in claim 10, it is characterised in that the virtual platform of the inside of base station
The client operating system for being responsible for inside of base station does the void outside scheduling of resource, the base station in inside of base station
Planization platform is responsible for client operating system and scheduling of resource is done between base station.
12. a kind of virtual platform, is set up based on base station, it is characterised in that including：
Mapping block, for the physical resource of the base station to be mapped as into virtual resource；
Generation module, for the virtual resource being mapped to according to the mapping block, in the virtualization
Generation includes the resource pool of the virtual resource in platform；
Receiving module, the resource request of the client operating system for receiving the base station；
Scheduling of resource module, for the resource request received according to the receiving module, from the life
It is the client operating system scheduling resource in the resource pool generated into module.
13. virtual platform as claimed in claim 12, it is characterised in that the physical resource of the base station
Including：Cpu resource, memory source, I/O device resource and Internet resources, the virtual resource are accordingly wrapped
Include：Virtual cpu resource, virtual memory resource, virtual IO devices resource and virtual network resource.
14. virtual platform as claimed in claim 12, it is characterised in that the virtual platform is special
Belong to the exclusive virtual platform of the base station.
15. virtual platform as claimed in claim 14, it is characterised in that the scheduling of resource module,
After receiving resource request in the receiving module, from the corresponding exclusive virtualization in the base station
The resource pool of platform is that the client operating system distributes resource.
16. virtual platform as claimed in claim 15, it is characterised in that the scheduling of resource module,
It is additionally operable to when the corresponding exclusive virtual platform in the base station cannot respond to the receiving module because of resource shortage
It is the client operation system to the corresponding exclusive virtual platform in other base stations during the resource request received
System request resource.
17. virtual platform as claimed in claim 12, it is characterised in that the virtual platform is many
The shared virtual platform of individual base station.
18. virtual platform as claimed in claim 17, it is characterised in that the scheduling of resource module,
After receiving resource request in the receiving module, from belonging to the client operating system
For the resource needed for the client operating system is dispatched in the corresponding resource pool in base station.
19. virtual platform as claimed in claim 18, it is characterised in that the scheduling of resource module,
It is additionally operable to when lacking required resource in the corresponding resource pool in the base station belonging to the client operating system,
Based on predetermined policy from other base stations correspondence resource pool in for the client operating system dispatch needed for resource.
20. virtual platform as claimed in claim 12, it is characterised in that the virtual platform is two
Level virtual platform, the two-stage virtual platform includes：The virtual platform of inside of base station, and outside base station
The virtual platform in portion；Wherein, the virtual platform outside the base station is the shared virtualization of all base stations
Platform.
21. virtual platform as claimed in claim 20, it is characterised in that the inside of base station it is virtual
The client operating system that change platform is responsible for inside of base station is done outside scheduling of resource, the base station in inside of base station
The virtual platform in portion is responsible for client operating system and scheduling of resource is done between base station.
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| CN201610248522.2A CN107305505A (en) | 2016-04-20 | 2016-04-20 | The operation method and virtual platform of virtual platform |
| PCT/CN2017/078712 WO2017181829A1 (en) | 2016-04-20 | 2017-03-30 | Virtualization platform operation method and virtualization platform |
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| CN201610248522.2A CN107305505A (en) | 2016-04-20 | 2016-04-20 | The operation method and virtual platform of virtual platform |
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| CN110928649A (en) * | 2018-09-19 | 2020-03-27 | 北京国双科技有限公司 | Resource scheduling method and device |
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| CN113704012B (en) * | 2021-08-10 | 2024-01-30 | 广西电网有限责任公司梧州供电局 | Virtualization-based transparent calculation method and system for recording data processing task |
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Application publication date: 20171031 |
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