CN108897603A - A kind of memory source management method and device - Google Patents
A kind of memory source management method and device Download PDFInfo
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- CN108897603A CN108897603A CN201810711039.2A CN201810711039A CN108897603A CN 108897603 A CN108897603 A CN 108897603A CN 201810711039 A CN201810711039 A CN 201810711039A CN 108897603 A CN108897603 A CN 108897603A
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- memory
- virtual machine
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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
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
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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
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
- G06F2009/45583—Memory management, e.g. access or allocation
Abstract
The invention discloses a kind of memory source management method and devices.It is related to virtual machine technique, solves the problems, such as to cause customer service to be interrupted by restarting releasing memory.This method includes：Obtain the memory usage amount of virtual machine internal；Obtain the physical memory occupancy that virtual machine process occupies；When the memory usage amount and the physical memory occupancy reach preset memory release conditions, memory release is executed.Technical solution provided by the invention is suitable for virtual machine management platform, realizes the automatic memory that executes and discharges.
Description
Technical field
The present invention relates to virtual machine technique, espespecially a kind of memory source management method and device.
Background technique
The linux virtual machine created by Libvirt and Qemu, in the process of running, the memory of occupancy can be with virtual
The rising of machine interior business amount and gradually increase, when portfolio decline when, virtual machine internal memory usage can be gradually reduced, but
That the memory that corresponding Qemu process occupies on host will not decline, i.e. Qemu committed memory does not discharge, cause on host can
Fewer and fewer with memory, resource is more and more nervous.
Usually, the host memory that change client computer occupancy, is first to close client computer, interior when modification starts
Configuration is deposited, client computer is then restarted and is just able to achieve.Broken clients service is thus needed, user experience is affected.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of memory source management method and devices.By real-time
Virtual machine internal memory and physical memory service condition are monitored, it is automatic to execute memory release, it solves by restarting releasing memory
The problem of causing customer service to be interrupted.
In order to reach the object of the invention, the present invention provides a kind of memory source management methods, including：
Obtain the memory usage amount of virtual machine internal；
Obtain the physical memory occupancy that virtual machine process occupies；
When the memory usage amount and the physical memory occupancy reach preset memory release conditions, memory is executed
Release.
Preferably, when the memory usage amount and the physical memory occupancy reach preset memory release conditions,
Executing the step of memory discharges includes：
Releasable amount of ram is calculated according to following formula：
Releasable amount of ram=memory usage amount-(memory standards value-physical memory occupancy),
Wherein, the memory standards value is preset virtual machine free memory amount；
Reach preset memory release door in the releasable amount of ram to prescribe a time limit, executes memory release.
Preferably, this method further includes：
The memory standards value is set.
Preferably, this method further includes：
The memory release thresholding is set.
Preferably, before the step of memory usage amount for obtaining virtual machine internal, further include：
The OS Type for obtaining the virtual machine judges that can the operating system of the virtual machine support memory to release
It puts.
The present invention also provides a kind of memory source managing devices, including：
Internal memory detection module, for obtaining the memory usage amount of virtual machine internal；
Physical memory detection module, for obtaining the physical memory occupancy of virtual machine process occupancy；
Memory release module is released for reaching preset memory in the memory usage amount and the physical memory occupancy
When putting condition, memory release is executed.
Preferably, the memory release module includes：
Releasable memory computing unit, for calculating releasable amount of ram according to following formula：
Releasable amount of ram=memory usage amount-(memory standards value-physical memory occupancy),
Wherein, the memory standards value is preset virtual machine free memory amount；
Execution unit is discharged, is prescribed a time limit for reaching preset memory release door in the releasable amount of ram, memory is executed
Release.
Preferably, which further includes：
First configuration module, for the memory standards value to be arranged.
Preferably, which further includes：
Second configuration module, for the memory release thresholding to be arranged.
Preferably, which further includes：
System access module judges the operation system of the virtual machine for obtaining the OS Type of the virtual machine
Can system support memory to discharge.
The present invention provides a kind of memory source management method and devices, obtain the memory usage amount of virtual machine internal, obtain
The physical memory occupancy for taking virtual machine process to occupy, then reaches in the memory usage amount and the physical memory occupancy
When preset memory release conditions, memory release is executed.The memory source adjustment for being not required to restart is realized, is solved by restarting
The problem of releasing memory causes customer service to be interrupted.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by specification, right
Specifically noted structure is achieved and obtained in claim and attached drawing.
Detailed description of the invention
Attached drawing is used to provide to further understand technical solution of the present invention, and constitutes part of specification, with this
The embodiment of application technical solution for explaining the present invention together, does not constitute the limitation to technical solution of the present invention.
Fig. 1 is a kind of flow diagram for memory source management method that one embodiment of the invention provides；
Fig. 2 is the flow diagram for another memory source management method that one embodiment of the invention provides；
Fig. 3 is a kind of structural schematic diagram for memory source managing device that one embodiment of the invention provides.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature can mutual any combination.
Step shown in the flowchart of the accompanying drawings can be in a computer system such as a set of computer executable instructions
It executes.Also, although logical order is shown in flow charts, and it in some cases, can be to be different from herein suitable
Sequence executes shown or described step.
Usually, the host memory that change client computer occupancy, is first to close client computer, interior when modification starts
Configuration is deposited, client computer is then restarted and is just able to achieve.Broken clients service is thus needed, user experience is affected.
To solve the above-mentioned problems, the embodiment provides a kind of memory source management method and devices.First
The corresponding virtual machine process of the virtual machine currently physical memory occupancy on host is obtained, is then obtained by virtual machine tools
To the memory usage amount of virtual machine internal；Feelings are used according to virtual machine process committed memory size and virtual machine internal real memory
Then condition discharges the spare memory that virtual machine process occupies according to calculated result to calculate releasing memory size, reduce in host
Deposit resource utilization.
One embodiment of the invention provides a kind of memory source management method, and the stream of memory release is completed using this method
Journey is as shown in Figure 1, include：
Step 101 carries out system configuration.
In this step, memory standards value is set, shows available highest memory source amount；It also needs that memory release door is arranged
Limit, with for whether start memory discharge operation operation reference standard.
Step 102, the OS Type for obtaining virtual machine, judge that can the operating system of the virtual machine support memory
Release.
In this step, VME operating system type is obtained by tools and is then skipped if windows；If
Linux then continues to execute following steps.
Step 103, the memory usage amount for obtaining virtual machine internal.
In this step, the memory service condition (passing through tools) of virtual machine internal is obtained.
Step 104 obtains the physical memory occupancy that virtual machine process occupies.
Step 105, when the memory usage amount and the physical memory occupancy reach preset memory release conditions,
Execute memory release.
This step specifically includes：
1, releasable amount of ram is calculated according to following formula：
Releasable amount of ram=memory usage amount-(memory standards value-physical memory occupancy),
Wherein, the memory standards value is preset virtual machine free memory amount；
2, reach preset memory release door in the releasable amount of ram to prescribe a time limit, execute memory release.
For example, balloon (Ballooning) technology can be used to realize memory release.It is vacant when host memory use anxiety
When memory is few, the partial memory for having distributed to client computer can be recycled with requesting clients, client computer will discharge its sky
Not busy memory, if client computer free memory is insufficient at this time, may can also memory in recovery section use, may swap out part
It is inside stored in the exchange partition (swap) of client computer, so that memory balloon inflation expands, so that host be allowed to recycle balloon
In memory can be used for other processes (or other client computer).Conversely, when low memory in client computer, client computer can also be allowed
The compression of memory balloon, release the partial memory in memory balloon, allow client computer using more memories.
One embodiment of the invention additionally provides a kind of memory source management method, using Qemu process as virtual machine process,
It is illustrated so that linux system is VME operating system as an example.
Virtual machine is created using qemu in the embodiment of the present invention, calls kvmballoon to virtualize using libvirt
Interface is managed virtual machine.In virtual machine operational process, virtual machine internal memory is obtained by tools and uses feelings
The memory size that condition and corresponding qemu process occupy on host, to determine whether needing to carry out memory to qemu process
Release.
The memory release to qemu process is realized by balloon, is reduced host memory utilization rate, is obviously improved
The performance of host, the perfect management and scheduling of host resource, while by tools realize effective monitoring to virtual machine and
The balloon mechanism of automation is suitble to carry out extensive automatically dispose in production environment.Since this mode relates only to
The modification of scheme optimization and software section facilitates the upgrading and maintenance of later period virtualization product.
Specific implementation process is as follows：Obtaining the corresponding qemu process of virtual machine first, currently committed memory is big on host
It is small, the memory service condition of virtual machine internal is then got by virtual machine tools；It is big according to virtual machine process committed memory
Small and virtual machine internal real memory service condition, to calculate releasing memory size；According to resulting value is calculated, pass through
Balloon discharges the spare memory that qemu process occupies, and reduces host memory resource utilization；Restore the memory of virtual machine configuration
Specification value does not influence the service operation of virtual machine.
Realization mainly includes the following steps that：
Step 1：VME operating system type is obtained by tools then to skip if windows；If linux,
Then continue to execute following steps
Step 2：Obtain the memory service condition (passing through tools) of virtual machine internal：
a.free–m；
B. the value of available is obtained.
Step 3：Obtain the virtual machine process currently committed memory size on host：
A. according to virtual machine id, qemu process id of the virtual machine on host is obtained；
B. according to the corresponding qemu process id of virtual machine, the physical memory size currently occupied is obtained,
Cat/proc/pid/status//VmRSS is the practical physical memory size occupied of process.
Step 4：According to virtual machine process committed memory size and virtual machine internal real memory service condition, to be arranged
Releasing memory size.
A. calculating qemu process can be with increased memory value size:Memory standards value-process committed memory；
B. the size of the releasable memory of qemu process is calculated：Mem_freed=available memory- (memory standards
Value-process committed memory).
Step 5：If the mem_freed value calculated is greater than 512M (occurrence can be set), to execute memory release.
Step 6：Restore the memory standards value of virtual machine configuration.
One embodiment of the invention additionally provides a kind of memory source managing device, and structure is as shown in Fig. 2, include：
Internal memory detection module 201, for obtaining the memory usage amount of virtual machine internal；
Physical memory detection module 202, for obtaining the physical memory occupancy of virtual machine process occupancy；
Memory release module 203, within the memory usage amount and the physical memory occupancy reach preset
When depositing release conditions, memory release is executed.
Preferably, the structure of the memory release module 203 is as shown in figure 3, include：
Releasable memory computing unit 2031, for calculating releasable amount of ram according to following formula：
Releasable amount of ram=memory usage amount-(memory standards value-physical memory occupancy),
Wherein, the memory standards value is preset virtual machine free memory amount；
Execution unit 2032 is discharged, is prescribed a time limit for reaching preset memory release door in the releasable amount of ram, is executed
Memory release.
Preferably, which further includes：
First configuration module 204, for the memory standards value to be arranged.
Preferably, which further includes：
Second configuration module 205, for the memory release thresholding to be arranged.
Preferably, which further includes：
System access module 206 judges the operation of the virtual machine for obtaining the OS Type of the virtual machine
Can system support memory to discharge.
The embodiment provides a kind of memory source management method and device, the memory for obtaining virtual machine internal makes
Dosage obtains the physical memory occupancy that virtual machine process occupies, then accounts in the memory usage amount with the physical memory
When dosage reaches preset memory release conditions, memory release is executed.The memory source adjustment for being not required to restart is realized, is solved
By restarting the problem of releasing memory causes customer service to be interrupted.
Virtual machine mainly is created using qemu in the embodiment of the present invention, calls kvmballoon using libvirt
Interface is virtualized to be managed to virtual machine, virtual machine qemu process committed memory size is obtained in virtual machine operational process
With the currently available memory size of host, the spare memory that qemu process occupies is discharged in real time.The memory of virtual machine can pass through life
It is changed when enabling row adjustment balloon, energy monitoring system memory simultaneously verifies the caused variation of balloon, while can save master
The a large amount of memory of machine.
This method reduce host memory utilization rate, it is obviously improved the performance of host, the perfect management of host resource
With scheduling, while the balloon mechanism of the effective monitoring and automation to virtual machine is realized by tools, is suitble to producing
Extensive automatically dispose is carried out in environment.Since this mode relates only to the modification of scheme optimization and software section, side
The upgrading and maintenance of phase virtualization product after an action of the bowels.
It will appreciated by the skilled person that whole or certain steps, system, dress in method disclosed hereinabove
Functional module/unit in setting may be implemented as software, firmware, hardware and its combination appropriate.In hardware embodiment,
Division between the functional module/unit referred in the above description not necessarily corresponds to the division of physical assemblies；For example, one
Physical assemblies can have multiple functions or a function or step and can be executed by several physical assemblies cooperations.Certain groups
Part or all components may be implemented as by processor, such as the software that digital signal processor or microprocessor execute, or by
It is embodied as hardware, or is implemented as integrated circuit, such as specific integrated circuit.Such software can be distributed in computer-readable
On medium, computer-readable medium may include computer storage medium (or non-transitory medium) and communication media (or temporarily
Property medium).As known to a person of ordinary skill in the art, term computer storage medium is included in for storing information (such as
Computer readable instructions, data structure, program module or other data) any method or technique in the volatibility implemented and non-
Volatibility, removable and nonremovable medium.Computer storage medium include but is not limited to RAM, ROM, EEPROM, flash memory or its
His memory technology, CD-ROM, digital versatile disc (DVD) or other optical disc storages, magnetic holder, tape, disk storage or other
Magnetic memory apparatus or any other medium that can be used for storing desired information and can be accessed by a computer.This
Outside, known to a person of ordinary skill in the art to be, communication media generally comprises computer readable instructions, data structure, program mould
Other data in the modulated data signal of block or such as carrier wave or other transmission mechanisms etc, and may include any information
Delivery media.
Claims (10)
1. a kind of memory source management method, which is characterized in that including：
Obtain the memory usage amount of virtual machine internal；
Obtain the physical memory occupancy that virtual machine process occupies；
When the memory usage amount and the physical memory occupancy reach preset memory release conditions, executes memory and release
It puts.
2. memory source management method according to claim 1, which is characterized in that in the memory usage amount and the object
When reason EMS memory occupation amount reaches preset memory release conditions, executing the step of memory discharges includes：
Releasable amount of ram is calculated according to following formula：
Releasable amount of ram=memory usage amount-(memory standards value-physical memory occupancy),
Wherein, the memory standards value is preset virtual machine free memory amount；
Reach preset memory release door in the releasable amount of ram to prescribe a time limit, executes memory release.
3. memory source management method according to claim 2, which is characterized in that this method further includes：
The memory standards value is set.
4. memory source management method according to claim 2, which is characterized in that this method further includes：
The memory release thresholding is set.
5. memory source management method according to claim 1, which is characterized in that the memory for obtaining virtual machine internal
Before the step of usage amount, further include：
The OS Type for obtaining the virtual machine judges that can the operating system of the virtual machine support memory to discharge.
6. a kind of memory source managing device, which is characterized in that including：
Internal memory detection module, for obtaining the memory usage amount of virtual machine internal；
Physical memory detection module, for obtaining the physical memory occupancy of virtual machine process occupancy；
Memory release module, for reaching preset memory released strip in the memory usage amount and the physical memory occupancy
When part, memory release is executed.
7. memory source managing device according to claim 6, which is characterized in that the memory release module includes：
Releasable memory computing unit, for calculating releasable amount of ram according to following formula：
Releasable amount of ram=memory usage amount-(memory standards value-physical memory occupancy),
Wherein, the memory standards value is preset virtual machine free memory amount；
Execution unit is discharged, is prescribed a time limit for reaching preset memory release door in the releasable amount of ram, memory release is executed.
8. memory source managing device according to claim 7, which is characterized in that the device further includes：
First configuration module, for the memory standards value to be arranged.
9. memory source managing device according to claim 7, which is characterized in that the device further includes：
Second configuration module, for the memory release thresholding to be arranged.
10. memory source managing device according to claim 6, which is characterized in that the device further includes：
System access module judges the operating system energy of the virtual machine for obtaining the OS Type of the virtual machine
No support memory release.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110275760A (en) * | 2019-06-27 | 2019-09-24 | 深圳市网心科技有限公司 | Process based on fictitious host computer processor hangs up method and its relevant device |
| CN110955518A (en) * | 2019-10-31 | 2020-04-03 | 北京浪潮数据技术有限公司 | Pressure load adjusting method of distributed storage management system |
| CN117075925A (en) * | 2023-08-16 | 2023-11-17 | 中科驭数（北京）科技有限公司 | Libvirt control surface unloading method, device, equipment and medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102193814A (en) * | 2010-03-09 | 2011-09-21 | 上海拜翰网络科技有限公司 | Method and system for dynamically distributing embedded virtual memory |
| CN102446115A (en) * | 2012-01-09 | 2012-05-09 | 浙江大学 | Dynamic deployment method for virtual machines |
| CN106407000A (en) * | 2015-08-10 | 2017-02-15 | 联想移动通信科技有限公司 | Terminal memory optimization method, apparatus and system |
| CN106502880A (en) * | 2016-09-20 | 2017-03-15 | 东软集团股份有限公司 | A kind of memory overflow adjustment method and device |
| CN107153618A (en) * | 2016-03-02 | 2017-09-12 | 阿里巴巴集团控股有限公司 | A kind of processing method and processing device of Memory Allocation |
| CN107943596A (en) * | 2016-10-12 | 2018-04-20 | 阿里巴巴集团控股有限公司 | Way of Process Communication, apparatus and system |
-
2018
- 2018-07-03 CN CN201810711039.2A patent/CN108897603B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102193814A (en) * | 2010-03-09 | 2011-09-21 | 上海拜翰网络科技有限公司 | Method and system for dynamically distributing embedded virtual memory |
| CN102446115A (en) * | 2012-01-09 | 2012-05-09 | 浙江大学 | Dynamic deployment method for virtual machines |
| CN106407000A (en) * | 2015-08-10 | 2017-02-15 | 联想移动通信科技有限公司 | Terminal memory optimization method, apparatus and system |
| CN107153618A (en) * | 2016-03-02 | 2017-09-12 | 阿里巴巴集团控股有限公司 | A kind of processing method and processing device of Memory Allocation |
| CN106502880A (en) * | 2016-09-20 | 2017-03-15 | 东软集团股份有限公司 | A kind of memory overflow adjustment method and device |
| CN107943596A (en) * | 2016-10-12 | 2018-04-20 | 阿里巴巴集团控股有限公司 | Way of Process Communication, apparatus and system |
Non-Patent Citations (1)
| Title |
|---|
| ZTSINGHUA: "使用virtio_balloon(KVM)中的Ballooning", 《CSDN》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110275760A (en) * | 2019-06-27 | 2019-09-24 | 深圳市网心科技有限公司 | Process based on fictitious host computer processor hangs up method and its relevant device |
| CN110955518A (en) * | 2019-10-31 | 2020-04-03 | 北京浪潮数据技术有限公司 | Pressure load adjusting method of distributed storage management system |
| CN117075925A (en) * | 2023-08-16 | 2023-11-17 | 中科驭数（北京）科技有限公司 | Libvirt control surface unloading method, device, equipment and medium |
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| CN108897603B (en) | 2021-10-01 |
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