CN103092677A - Internal storage energy-saving system and method suitable for virtualization platform - Google Patents

Internal storage energy-saving system and method suitable for virtualization platform Download PDF

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CN103092677A
CN103092677A CN2013100093124A CN201310009312A CN103092677A CN 103092677 A CN103092677 A CN 103092677A CN 2013100093124 A CN2013100093124 A CN 2013100093124A CN 201310009312 A CN201310009312 A CN 201310009312A CN 103092677 A CN103092677 A CN 103092677A
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internal storage
memory
virtual machine
storage access
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金海�
廖小飞
余施展
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Huazhong University of Science and Technology
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract

The invention discloses an internal storage energy-saving system suitable for a virtualization platform. The internal storage energy-saving system suitable for the virtualization platform comprises an internal storage state adjusting module, an internal storage visiting set managing module, an internal storage allocation module and an upper layer control module. The internal storage state adjusting module is used for providing an application program interface for the upper layer control module, managing the state inquiry and adjusting of minimum controlled units of a physical machine. The internal storage allocation module is used for allocating and reclaiming the inter storage for a viral machine by utilizing a dynamic propagation algorithm based on an internal storage visiting set. The internal storage visiting set managing module is used for setting the internal storage visiting set for the virtual machine to save the distributed information of the internal storage of the virtual machine after the internal storage allocation module allocates and reclaims the internal storage. The upper layer control module is used for providing an interface for the virtual machine of a virtual machine monitor (VMM) upper layer to inquire the internal state of the VMM and the upper layer control module is used for debugging the whole energy-saving system. The internal storage energy-saving system and a method suitable for the virtualization platform can excellently solve the problem of internal storage energy high energy consumption in virtualization environment and can have small influence to existing system property.

Description

A kind of internal memory energy conserving system and method that is applicable to virtual platform
Technical field
The invention belongs to memory techniques field under the Computer Systems Organization virtualized environment, more specifically, relate to a kind of internal memory energy conserving system and method that is applicable to virtual platform.
Background technology
Along with the scale of IT infrastructure increases day by day, energy consumption problem is more and more severeer.Green calculating has been the research emphasis of computer industry circle and academia.In the large-scale data center, nowadays the internal memory energy consumption has occupied a sizable part, especially for the physical machine cluster that is used for large-scale data processing and virtual machine lease service of the large physical memory of equipment, the internal memory energy consumption has surmounted the CPU energy consumption, becomes the main producer of energy consumption.Therefore the energy consumption that reduces internal memory is to reduce a very crucial part of the whole energy consumption of data center.
In the large-scale data center, Intel Virtualization Technology is widely used in the high efficiency of IT infrastructure resource management and the advantage aspect extensibility with it.The physical resource of PC is no longer directly managed by single operating system, but by virtual machine manager (Virtual Machine Monitor, be called for short VMM) manage, VMM can create a plurality of virtual machines, allow dissimilar operating system on it, thereby greatly improved the utilization factor of physical resource.
Existing physical memory chip manufacturer has supplied physical support for the internal memory Energy Conservation.A physical memory can be divided into a plurality of little controllable usually, is called minimum control module, and each minimum control module has a plurality of running statuses, wherein just comprises low energy consumption state.Processing normal read-write state when minimum control module is that energy consumption is very high, but when making it become low energy consumption state by an instruction, the minimum control module of this physics can not be accessed, do not lose but the data of internal memory have, and the energy consumption of internal memory reduces greatly simultaneously.Therefore the energy-conservation core of internal memory is exactly to allow minimum controllable as much as possible be set to low energy consumption state, reduces whole energy consumption.
Current about internal memory energy-conservation research mostly pay close attention to legacy operating system.The energy-conservation research of internal memory under virtual machine environment is less.When virtual machine moves, one of any moment only has at most a virtual machine in operation above processor, therefore only have the physical memory of the virtual machine of part operation need to be in normal read-write state, the minimum controllable of other not accessed physics can transfer low energy consumption state to.The physical memory of virtual machine is overstepping the bounds of propriety loose, and the minimum controllable that need to be in normal condition when moving this virtual machine is more, so energy consumption is also larger.
Summary of the invention
For the defective of prior art, the object of the present invention is to provide a kind of internal memory energy conserving system that is applicable to virtual platform, be intended to solve the excessive problem of physical memory energy consumption under existing virtualized environment.
for achieving the above object, the invention provides a kind of internal memory energy conserving system that is applicable to virtual platform, comprise the internal storage state adjustment module, internal storage access collector reason module, memory allocating module and upper strata control module, the internal storage state adjustment module is used to the upper strata control module that application programming interfaces are provided, and status poll and the adjusting of minimum controllable in the managing physical machine, memory allocating module is used for adopting the dynamic expansion algorithm that integrates based on internal storage access to distribute as virtual machine and reclaims internal memory, internal storage access collector reason mould is used for after memory allocating module is distributed and reclaimed internal memory, for virtual machine arranges the internal storage access collection to preserve the distributed intelligence of virutal machine memory, and manage this internal storage access collection, the upper strata control module is used to the virtual machine on VMM upper strata that interface is provided, internal state with inquiry VMM, and whole internal memory energy conserving system is debugged.
The information of internal storage access collection comprises the number of Physical Page in the minimum controllable sequence number that virutal machine memory takies, minimum controllable and is in holding time of normal condition.
The management of internal storage access collection is mainly to realize by the Key Functions relevant to internal memory in intercepting and capturing VMM, and Key Functions includes memory allocation function, reclaims function and mapping function.
The upper strata control module is specifically set up a slice buffer zone in the VMM kernel, the branch zone of virutal machine memory, the state of minimum controllable, minimum controllable energy consumption consumption state information are written to this buffer zone with the form of regulation, realized a driving of reading this buffer zone in the virtual machine on VMM upper strata, be used for reading the internal memory of this buffer zone, carry out analysis and the debugging of data for the analysis tool on upper strata.
By the above technical scheme that the present invention conceives, compared with prior art, system of the present invention has following advantage and technique effect:
1, owing to having adopted internal storage access collector reason module and internal storage state adjustment module, the minimum controllable that makes under virtualized environment each internal storage access that only has a virtual machine above processor concentrate is in normal read-write state, thereby has reduced the physical memory energy consumption of system;
2, owing to having adopted memory allocating module, organize the physical memory of virtual machine by more simple data structure, thereby improved the performance of internal memory operation.New memory allocation algorithm makes the minimum controllable that the virtual machine physical memory takies greatly reduce than under traditional environment, thereby has further reduced the physical memory energy consumption of system.
Another object of the present invention is to provide a kind of internal memory power-economizing method that is applicable to virtual platform, be intended to the existing excessive problem of physical memory energy consumption under virtualized environment that solves.
For achieving the above object, the invention provides a kind of internal memory power-economizing method that is applicable to virtual platform, comprise the following steps:
(1) memory allocating module receives user's virtual machine creating request;
(2) memory allocating module is the virtual machine of N Physical Page according to virtual machine creating request establishment memory size, and wherein N is positive integer;
(3) the virtual machine ID that creates in internal storage access collector reason module obtaining step (2) joins the internal storage access collection of this virtual machine in the data structure of inner management internal storage access collection, then switches to the scheduling virtual machine device of VMM;
(4) the scheduling virtual machine device obtains virtual machine by dispatching algorithm, and then the ID with this virtual machine imports the internal storage state adjustment module into;
(5) the internal storage state adjustment module is obtained the internal storage access collection of this this virtual machine from internal storage access collector reason module by virtual machine ID, and in the internal storage access collection, all minimum control modules are set to normally read and write attitude, and continue to switch to the scheduling virtual machine device;
(6) scheduling virtual machine device Execution context switches, and returns to user's attitude;
(7) the upper strata control module provides the internal storage state that creates virtual machine inquiry for the user, carries out debugging for this user;
Internal storage access collector reason module is used for data structure that the internal storage access of managing virtual machines integrates as Hash table, and namely the ID by virtual machine can utilize Hash table to inquire corresponding internal storage access collection.
Step (2) comprises following substep:
(2-1) memory allocating module judges whether and can find internal storage access collection corresponding to virtual machine from internal storage access collector reason module, if can not find the internal storage access collection, enters step (2-2), otherwise enters step (2-3);
(2-2) memory allocating module is set up the internal storage access collection in internal storage access collector reason module, and this internal storage access collection is initialized as empty set;
(2-3) the quantity N of memory allocating module judgement Physical Page whether greater than the total free memory of system, if it is returns to the error message of low memory, and then process finishes, otherwise enters step (2-4);
(2-4) whether the quantity N of memory allocating module judgement Physical Page greater than zero, if yes then enter (2-5), successfully believes otherwise return to Memory Allocation, and then process finishes;
(2-5) memory allocating module judge whether internal storage access be concentrated into the distribution of work size be the Physical Page of N, return to the Memory Allocation successful information if be allocated successfully, otherwise enter step (2-6);
(2-6) memory allocating module is searched a minimum controllable that free page is maximum, and it is concentrated that it is joined internal storage access, and turns back to step (2-4).
By the above technical scheme that the present invention conceives, compared with prior art, method of the present invention has the following advantages:
1, owing to having adopted step (3) and step (5), only have the minimum controllable of being accessed by virtual machine to be in normal read-write state when moving in system, other minimum controllable only is in power save mode, so the Energy Intensity Reduction of system;
1, owing to having adopted step (2-5) and (2-6), the internal storage access collection of virtual machine only just can increase new minimum controllable in the situation that self free memory is inadequate, therefore the internal memory of virtual machine is more assembled, so the minimum controllable that takies during the virtual machine operation is than more few under traditional environment, so energy consumption further reduces.
Description of drawings
Fig. 1 is the module frame chart that the present invention is applicable to the internal memory energy conserving system of virtual platform.
Fig. 2 is the process flow diagram that the present invention is applicable to the internal memory energy conserving system module method of work of virtual platform.
Fig. 3 is the process flow diagram that the present invention is applicable to the virutal machine memory distribution method of virtual platform.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, the internal memory energy conserving system that the present invention is applicable to virtual platform comprises internal storage state adjustment module 1, internal storage access collector reason module 2, memory allocating module 3 and upper strata control module 4, and these four modules are all to realize in VMM.
Internal storage state adjustment module 1 is used to upper strata control module 4 that application programming interfaces (Application Program Interface, be called for short API) are provided, and status poll and the adjusting of minimum controllable (Rank) in the managing physical machine; The state of minimum controllable mainly comprises normal read-write attitude and power save mode, and read-write attitude energy consumption is very high, and energy-conservation attitude energy consumption is low, and the assembly instruction that provides by phy chip namely can realize inquiry and the adjusting of state.
It is that virtual machine distributes and the recovery internal memory that memory allocating module 3 is used for by the mode that virutal machine memory is gathered in few minimum controllable of trying one's best.Current virtual machine manager (Virtual machine manager, what virutal machine memory distribution system abbreviation VMM) adopted is basic buddy algorithm, whole region of memory is regarded as consistent and smooth, thereby causes virutal machine memory to be distributed in different minimum controllable.Memory allocating module 3 has redesigned memory allocation algorithm, make the internal memory of virtual machine more be gathered in the minimum controllable of less internal memory, in realization, at first the physical memory in minimum controllable has adopted more simple data structure to organize, it is simple idle chained list, then the distribution of internal memory is based on the dynamic expansion algorithm of internal storage access collection, and the particular content of algorithm is seen Fig. 3.
Internal storage access collector reason module 2 is used for after memory allocating module 3 is distributed and reclaimed internal memory, for virtual machine arranges the internal storage access collection with the distributed intelligence of preservation virutal machine memory, and manages this internal storage access collection.The information of internal storage access collection comprise Physical Page in the minimum controllable sequence number that virutal machine memory takies, minimum controllable number, be in holding time of normal condition etc.
The distributed intelligence of internal storage access collection needs dynamically to adjust, when the upper strata virtual machine changes its internal storage access zone by system call, when for example driving the change physical memory or sharing the increase access region by internal memory by balloon, distributed intelligence need to be adjusted before system call finishes, thereby guarantees its consistance.The management of internal storage access collection is mainly to realize by the Key Functions relevant to internal memory in intercepting and capturing VMM.Particularly, Key Functions includes memory allocation function, reclaims function, mapping function etc.
Upper strata control module 4 is used to the virtual machine on VMM upper strata that interface is provided, and with the internal state of inquiry VMM, and whole internal memory energy conserving system is debugged.By this interface, can inquire about the information such as the branch zone of virutal machine memory, the state of minimum controllable, minimum controllable energy consumption consumption state.Particularly, the method that realizes is to set up a slice buffer zone in the VMM kernel, relevant information is written to this buffer zone with the form of stipulating, realized a driving of reading this buffer zone in the virtual machine on VMM upper strata, be used for reading the internal memory of this buffer zone, carry out analysis and the debugging of data for the analysis tool on upper strata (such as Debug etc.).
As shown in Figure 2, the present invention's internal memory power-economizing method of being applicable to virtual platform comprises the following steps:
(1) memory allocating module receives user's virtual machine creating request; Particularly, user's virtual machine creating request is that the mode by hypercalls enters into VMM, and the VMM kernel sends to memory allocating module after intercepting and capturing this request;
(2) memory allocating module is the virtual machine of N Physical Page according to virtual machine creating request establishment memory size, and wherein N is positive integer;
(3) the virtual machine ID that creates in internal storage access collector reason module obtaining step (2) joins the internal storage access collection of this virtual machine in the data structure of inner management internal storage access collection, then switches to the scheduling virtual machine device of VMM; In the present embodiment, internal storage access collector reason module is used for data structure that the internal storage access of managing virtual machines integrates as Hash table, and namely the ID by virtual machine can utilize Hash table to inquire corresponding internal storage access collection; This step can allow memory allocating module obtain the internal storage access collection of virtual machine very fast in linear session;
(4) the scheduling virtual machine device obtains virtual machine by dispatching algorithm, and then the ID with this virtual machine imports the internal storage state adjustment module into; In the present embodiment, the dispatching algorithm of employing is the Credit dispatching algorithm;
(5) the internal storage state adjustment module is obtained the internal storage access collection of this this virtual machine from internal storage access collector reason module by virtual machine ID, and in the internal storage access collection, all minimum control modules are set to normally read and write attitude, and continue to switch to the scheduling virtual machine device; Particularly, all minimum control modules that internal storage state adjustment module traversal internal storage access is concentrated, the unit that is improper read-write state with state is adjusted to normal read-write state; This step begins to carry out before virtual machine context is switched, and can utilize virtual machine context to switch and cover the delay that minimum controllable status adjustment is brought, and reduces performance loss.
(6) scheduling virtual machine device Execution context switches, and returns to user's attitude; Particularly, the switching of the context of scheduling virtual machine device refers to switch to the virtual machine operation from VMM;
(7) the upper strata control module provides the internal storage state that creates virtual machine inquiry for the user, carries out debugging (Debug) for this user; This step can help the user to carry out system debug, the performance of query requests.
As shown in Figure 3, the step of the inventive method (2) comprises following substep:
(2-1) memory allocating module judges whether and can find internal storage access collection corresponding to virtual machine from internal storage access collector reason module, if can not find the internal storage access collection, enters step (2-2), otherwise enters step (2-3);
(2-2) memory allocating module is set up the internal storage access collection in internal storage access collector reason module, and this internal storage access collection is initialized as empty set;
(2-3) the quantity N of memory allocating module judgement Physical Page whether greater than the total free memory of system, if it is returns to the error message of low memory, and then process finishes, otherwise enters step (2-4);
(2-4) whether the quantity N of memory allocating module judgement Physical Page greater than zero, if yes then enter (2-5), successfully believes otherwise return to Memory Allocation, and then process finishes;
(2-5) memory allocating module judge whether internal storage access be concentrated into the distribution of work size be the Physical Page of N, return to the Memory Allocation successful information if be allocated successfully, otherwise enter step (2-6);
(2-6) memory allocating module is searched a minimum controllable that free page is maximum, and it is concentrated that it is joined internal storage access, and turns back to step (2-4).
The invention provides a kind of controlled, internal memory power-economizing method that be applicable to efficiently virtual platform, wherein owing to having adopted step (2), the physical memory of virtual machine is with respect to the minimum controllable that takies under traditional environment still less, thus the physical memory energy consumption when reducing this virtual machine operation; Owing to having adopted step (5), the present invention utilizes the time that virtual machine context is switched to cover the delay that minimum controllable state switching brings, thereby has reduced the expense of system.
For the internal memory energy conserving system that the present invention is applicable to virtual platform, owing to having adopted internal storage access collector reason module and internal storage state adjustment module this patent to make that under virtualized environment, each minimum controllable of only having the internal storage access of a virtual machine to concentrate above processor is in normal read-write state, thereby reduced the physical memory energy consumption of system; Owing to having adopted memory allocating module, this patent is organized the physical memory of virtual machine by more simple data structure, thereby has improved the performance of internal memory operation.New memory allocation algorithm makes the minimum controllable that the virtual machine physical memory takies greatly reduce than under traditional environment, thereby has further reduced the physical memory energy consumption of system; Owing to having adopted the upper strata control module, the physical memory that the user can inquire about virtual machine distributes and consumption information, can provide better support for the Debug of system and Performance tuning.
Those skilled in the art will readily understand; the above is only preferred embodiment of the present invention; not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.

Claims (7)

1. an internal memory energy conserving system that is applicable to virtual platform, comprise internal storage state adjustment module, internal storage access collector reason module, memory allocating module and upper strata control module, it is characterized in that,
The internal storage state adjustment module is used to the upper strata control module that application programming interfaces are provided, and status poll and the adjusting of minimum controllable in the managing physical machine;
Memory allocating module is used for adopting the dynamic expansion algorithm that integrates based on internal storage access to distribute as virtual machine and reclaims internal memory;
Internal storage access collector reason mould is used for after memory allocating module is distributed and reclaimed internal memory, for virtual machine arranges the internal storage access collection with the distributed intelligence of preservation virutal machine memory, and manages this internal storage access collection;
The upper strata control module is used to the virtual machine on VMM upper strata that interface is provided, and with the internal state of inquiry VMM, and whole internal memory energy conserving system is debugged.
2. internal memory energy conserving system according to claim 1, is characterized in that, the information of internal storage access collection comprises the number of Physical Page in the minimum controllable sequence number that virutal machine memory takies, minimum controllable and is in holding time of normal condition.
3. internal memory energy conserving system according to claim 1, is characterized in that, the management of internal storage access collection is mainly to realize by the Key Functions relevant to internal memory in intercepting and capturing VMM, and Key Functions includes memory allocation function, reclaims function and mapping function.
4. internal memory energy conserving system according to claim 1, it is characterized in that, the upper strata control module is specifically set up a slice buffer zone in the VMM kernel, the branch zone of virutal machine memory, the state of minimum controllable, minimum controllable energy consumption consumption state information are written to this buffer zone with the form of regulation, realized a driving of reading this buffer zone in the virtual machine on VMM upper strata, be used for reading the internal memory of this buffer zone, carry out analysis and the debugging of data for the analysis tool on upper strata.
5. an internal memory power-economizing method that is applicable to virtual platform, is characterized in that, comprises the following steps:
(1) memory allocating module receives user's virtual machine creating request;
(2) memory allocating module is the virtual machine of N Physical Page according to virtual machine creating request establishment memory size, and wherein N is positive integer;
(3) the virtual machine ID that creates in internal storage access collector reason module obtaining step (2) joins the internal storage access collection of this virtual machine in the data structure of inner management internal storage access collection, then switches to the scheduling virtual machine device of VMM;
(4) the scheduling virtual machine device obtains virtual machine by dispatching algorithm, and then the ID with this virtual machine imports the internal storage state adjustment module into;
(5) the internal storage state adjustment module is obtained the internal storage access collection of this this virtual machine from internal storage access collector reason module by virtual machine ID, and in the internal storage access collection, all minimum control modules are set to normally read and write attitude, and continue to switch to the scheduling virtual machine device;
(6) scheduling virtual machine device Execution context switches, and returns to user's attitude;
(7) the upper strata control module provides the internal storage state that creates virtual machine inquiry for the user, carries out debugging for this user.
6. internal memory power-economizing method according to claim 5, it is characterized in that, internal storage access collector reason module is used for data structure that the internal storage access of managing virtual machines integrates as Hash table, and namely the ID by virtual machine can utilize Hash table to inquire corresponding internal storage access collection.
7. internal memory power-economizing method according to claim 5, is characterized in that, step (2) comprises following substep:
(2-1) memory allocating module judges whether and can find internal storage access collection corresponding to virtual machine from internal storage access collector reason module, if can not find the internal storage access collection, enters step (2-2), otherwise enters step (2-3);
(2-2) memory allocating module is set up the internal storage access collection in internal storage access collector reason module, and this internal storage access collection is initialized as empty set;
(2-3) the quantity N of memory allocating module judgement Physical Page whether greater than the total free memory of system, if it is returns to the error message of low memory, and then process finishes, otherwise enters step (2-4);
(2-4) whether the quantity N of memory allocating module judgement Physical Page greater than zero, if yes then enter (2-5), successfully believes otherwise return to Memory Allocation, and then process finishes;
(2-5) memory allocating module judge whether internal storage access be concentrated into the distribution of work size be the Physical Page of N, return to the Memory Allocation successful information if be allocated successfully, otherwise enter step (2-6);
(2-6) memory allocating module is searched a minimum controllable that free page is maximum, and it is concentrated that it is joined internal storage access, and turns back to step (2-4).
CN2013100093124A 2013-01-10 2013-01-10 Internal storage energy-saving system and method suitable for virtualization platform Pending CN103092677A (en)

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CN105701034A (en) * 2014-12-14 2016-06-22 上海兆芯集成电路有限公司 Cache memory budgeted by ways on memory access type
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CN112416607B (en) * 2020-12-25 2023-11-24 网络通信与安全紫金山实验室 Method, system, equipment and medium for improving Cache hit rate

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Application publication date: 20130508