CN107908474A - A kind of Memory Allocation application method and system based on rdma protocol - Google Patents
A kind of Memory Allocation application method and system based on rdma protocol Download PDFInfo
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- CN107908474A CN107908474A CN201711024460.8A CN201711024460A CN107908474A CN 107908474 A CN107908474 A CN 107908474A CN 201711024460 A CN201711024460 A CN 201711024460A CN 107908474 A CN107908474 A CN 107908474A
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- memory unit
- numerical value
- rdma protocol
- transmission registers
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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]
- G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
- G06F9/5011—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resources being hardware resources other than CPUs, Servers and Terminals
- G06F9/5016—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resources being hardware resources other than CPUs, Servers and Terminals the resource being the memory
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Abstract
This application discloses a kind of Memory Allocation application method and system based on rdma protocol, including：The transmission registers memory unit of distribution setting numerical value after process initiation；Setting numerical value is less than the maximum for sending registers memory unit number；Process consumes allocated transmission registers memory unit when sending data；If the transmission registers memory unit of allocated transmission registers memory unit deficiency, again a numerical value of dynamically distributes setting.The application dynamically increases the distribution for sending registers memory unit with the increase for sending data pressure, so under the premise of ensureing based on the normal information receiving and transmitting function of rdma protocol, greatly reduce process initiation post-registration Memory Allocation quantity, and it is able to maintain that less memory source takes when process messaging pressure is smaller, so as to improve the starting efficiency of individual process, the higher memory consumption state that is chronically at of clustered node is avoided, improves node memory and consumes too fast situation.
Description
Technical field
The present invention relates to technical field of memory, more particularly to a kind of Memory Allocation application method based on rdma protocol and
System.
Background technology
(Remote Direct Memory Access, abbreviation PDMA) agreement is accessed using remote direct memory to disappear
Message communication, transmitting terminal and receiving terminal need to distribute a certain amount of memory and these memories are passed through driving interface ibv_reg_mr
IB network interface cards are registered to, could realize sending and receiving for message.The major function of ibv_reg_mr interfaces is to tell IB that network interface card can
With the memory source address space and its access rights of access, such as local access limit and distal end access limit.
Fig. 1, which is shown, existing is based on rdma protocol messaging flow：Step 1, receiving terminal are distributed in enough receptions
Deposit and call ibv_reg_mr interfaces to be registered to wireless broad band technology (InfiniBand, abbreviation IB) network interface card, then call driving
The data that the transmitting terminal to be received such as interface ibv_post_recv is sent；Step 2: transmitting terminal distribution sends memory and calls ibv_
Reg_mr interfaces are registered to IB network interface cards, and data copy to be sent is finally then called driving interface ibv_ to sending in memory
Post_send goes out data sending；Step 3: after receiving terminal receives data, driving interface ibv_poll_ can be passed through
Cq obtains the datarams memory space received, and then receiving terminal can obtain these data.It should be noted that step
One must complete before step 2, i.e., receiving terminal must it is registered in advance it is enough be used to receive the memory of data, if received
End receives low memory or does not perform step 1, then transmitting terminal calls ibv_post_send interfaces to fail in step 2.
After existing technology transmitting terminal and receiving terminal process initiation, just need to distribute substantial amounts of reception memory and transmission first
Memory is simultaneously registered to IB cards, and these memory sources are all disposably to be assigned, and follow-up two inter-process datas transmitting-receiving is all
Dependent on these registers memories.And in large-scale cluster storage system, a memory node will have about 40 processes, often
A process is required for distributing these registers memory resources, therefore it is too fast to not only result in memory node memory consumption, and can be tight
Ghost image rings the starting efficiency of individual process.
The content of the invention
In view of this, it is an object of the invention to provide a kind of Memory Allocation application method based on rdma protocol and it is
System, can improve process initiation efficiency, system memory resource consumes in the case of transmission pressure is small after reduction starts.Its concrete scheme
It is as follows：
A kind of Memory Allocation application method based on rdma protocol, including：
The transmission registers memory unit of distribution setting numerical value after process initiation；The setting numerical value is less than the transmission
The maximum of registers memory unit number；
Process consumes the allocated transmission registers memory unit when sending data；
If the allocated transmission registers memory unit deficiency, the again transmission of dynamically distributes setting numerical value are noted
Volume internal storage location.
Preferably, in the above-mentioned Memory Allocation application method based on rdma protocol provided in an embodiment of the present invention, if
The transmission registers memory unit deficiency of distribution, again the transmission registers memory unit of dynamically distributes setting numerical value it
Afterwards, further include：
The number for the transmission registers memory unit that process is distributed altogether is the stopping distribution transmission note after maximum
Volume internal storage location.
Preferably, it is described in the above-mentioned Memory Allocation application method based on rdma protocol provided in an embodiment of the present invention
Set 1/N of a numerical value as the maximum of the transmission registers memory unit number；Wherein N>1 and N is positive integer.
Preferably, it is described in the above-mentioned Memory Allocation application method based on rdma protocol provided in an embodiment of the present invention
A numerical value is set as the 1/10 of the maximum of the transmission registers memory unit number.
Preferably, in the above-mentioned Memory Allocation application method based on rdma protocol provided in an embodiment of the present invention, process
After startup while the transmission registers memory unit of distribution setting numerical value, further include：
Distribute the reception registers memory unit of fixed number value.
The embodiment of the present invention additionally provides a kind of Memory Allocation based on rdma protocol and uses system, including：
Original allocation module, the transmission registers memory unit for distribution setting numerical value after process initiation；The setting
A numerical value is less than the maximum of the transmission registers memory unit number；
Consumable module, consumes the allocated transmission registers memory unit when sending data for process；
Dynamically distributes module, if for the allocated transmission registers memory unit deficiency, again dynamically distributes setting
The transmission registers memory unit of a numerical value.
Preferably, it is described in the above-mentioned Memory Allocation based on rdma protocol provided in an embodiment of the present invention uses system
Dynamically distributes module, the transmission registers memory unit number that the process that is additionally operable to is distributed altogether are stopping distribution after maximum
The transmission registers memory unit.
Preferably, it is described in the above-mentioned Memory Allocation based on rdma protocol provided in an embodiment of the present invention uses system
Set 1/N of a numerical value as the maximum of the transmission registers memory unit number；Wherein N>1 and N is positive integer.
Preferably, it is described in the above-mentioned Memory Allocation based on rdma protocol provided in an embodiment of the present invention uses system
A numerical value is set as the 1/10 of the maximum of the transmission registers memory unit number.
Preferably, it is described in the above-mentioned Memory Allocation based on rdma protocol provided in an embodiment of the present invention uses system
Original allocation module, is additionally operable to the reception registers memory unit of distribution fixed number value.
A kind of Memory Allocation application method and system based on rdma protocol provided by the present invention, including：Process initiation
The transmission registers memory unit of distribution setting numerical value afterwards；Setting numerical value is less than the maximum for sending registers memory unit number
Value；Process consumes allocated transmission registers memory unit when sending data；If allocated transmission registers memory unit deficiency,
Again the transmission registers memory unit of dynamically distributes setting numerical value.The present invention with send data pressure increase and dynamically
Increase sends the distribution of registers memory unit, so under the premise of ensureing to be based on the normal information receiving and transmitting function of rdma protocol, greatly
It is big to reduce process initiation post-registration Memory Allocation quantity, and be able to maintain that when process messaging pressure is smaller in less
Resource occupation is deposited, so as to improve the starting efficiency of individual process, avoid clustered node is chronically at higher memory consumption shape
State, improves node memory and consumes too fast situation.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is based on rdma protocol messaging flow schematic diagram to be existing；
Fig. 2 is the Memory Allocation application method flow chart provided in an embodiment of the present invention based on rdma protocol.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
The present invention provides a kind of Memory Allocation application method based on rdma protocol, as shown in Fig. 2, comprising the following steps：
The transmission registers memory unit of distribution setting numerical value after S201, process initiation；Setting numerical value, which is less than to send, to be noted
The maximum of volume internal storage location number；
S202, process consume allocated transmission registers memory unit when sending data；
If the transmission registration of S203, again allocated transmission registers memory unit deficiency, dynamically distributes setting numerical value
Internal storage location.
In the above-mentioned Memory Allocation application method based on rdma protocol provided in an embodiment of the present invention, process initiation first
The transmission registers memory unit of distribution setting numerical value afterwards；A numerical value is set at this time is less than transmission registers memory unit number most
Big value；Then allocated transmission registers memory unit is consumed when process sends data；If allocated transmission registers memory list
The transmission registers memory unit of first deficiency, again dynamically distributes setting numerical value.The present invention is with the increase for sending data pressure
And the distribution for sending registers memory unit is dynamically increased, so before ensureing to be based on the normal information receiving and transmitting function of rdma protocol
Put, greatly reduce process initiation post-registration Memory Allocation quantity, and be able to maintain that when process messaging pressure is smaller
Less memory source takes, so as to improve the starting efficiency of individual process, avoids being chronically at for clustered node higher interior
Consumption state is deposited, improves node memory and consumes too fast situation.
It should be noted that, it is necessary to registered in advance substantial amounts of during existing use rdma protocol carries out data transmission
Send registers memory and receive registers memory, if these memories all disposably distribute after process initiation, will largely effect on into
The starting efficiency of journey, and node memory takes the higher state that can also maintain always, and these two aspects will after the present invention improves
Larger improvement is obtained, not only ensure that normal information receiving and transmitting function, but also reduces initial registration Memory Allocation quantity, so as to carry
High process initiation efficiency, greatly reduce send after multiple process initiations pressure it is small in the case of system memory resource consume.
Further, in the specific implementation, in the above-mentioned Memory Allocation based on rdma protocol provided in an embodiment of the present invention
In application method, if performing the allocated transmission registers memory unit deficiencies of step S203, dynamically distributes set number again
It is further comprising the steps of after the transmission registers memory unit of value：
The number for the transmission registers memory unit that process is distributed altogether is stopping distribution transmission registers memory list after maximum
Member.
That is, in order to ensure not influence normal information receiving and transmitting function, with the increase for sending data pressure, dynamic
Ground increase sends the distribution of registers memory unit, until quantity allotted should after reaching the maximum for sending registers memory unit number
Do not reallocate and send registers memory unit.
In the specific implementation, in the above-mentioned Memory Allocation application method based on rdma protocol provided in an embodiment of the present invention
In, in order to ensure that the number of the transmission registers memory unit of every sub-distribution is consistent, it can be to send registration to set a numerical value
The 1/N of the maximum of internal storage location number；Wherein N>1 and N is positive integer.
Specifically, a numerical value is set to could be provided as sending the 1/10 of the maximum of registers memory unit number.So remove
The distribution of initial registration internal storage location, dynamically at least nine times increases can send the distribution of registers memory unit.
In the specific implementation, in the above-mentioned Memory Allocation application method based on rdma protocol provided in an embodiment of the present invention
In, after process initiation while the transmission registers memory unit of distribution setting numerical value, further include：
Distribute the reception registers memory unit of fixed number value.
For example, m can be distributed after process initiation receives registers memory unit and n/10 transmission registers memory unit；Its
Middle n is the maximum for sending registers memory unit number.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of Memory Allocation based on rdma protocol and uses system
System, since the principle that the system solves the problems, such as is similar to a kind of foregoing Memory Allocation application method based on rdma protocol,
The implementation of the system may refer to the implementation of the Memory Allocation application method based on rdma protocol, and overlaps will not be repeated.
In the specific implementation, the Memory Allocation provided in an embodiment of the present invention based on rdma protocol uses system, specific bag
Include：
Original allocation module, the transmission registers memory unit for distribution setting numerical value after process initiation；Set number
Value is less than the maximum for sending registers memory unit number；
Consumable module, consumes allocated transmission registers memory unit when sending data for process；
Dynamically distributes module, if insufficient for allocated transmission registers memory unit, dynamically distributes set number again
The transmission registers memory unit of value.
In the above-mentioned Memory Allocation based on rdma protocol provided in an embodiment of the present invention uses system, pass through above three
The interaction of module, for individual process, reduces initial registration Memory Allocation quantity, so as to improve process initiation
Efficiency；For whole memory node, greatly reduce send after multiple process initiations pressure it is small in the case of Installed System Memory provide
Source consumes.
Further, in the specific implementation, in the above-mentioned Memory Allocation based on rdma protocol provided in an embodiment of the present invention
Using in system, in order to ensure not influence normal information receiving and transmitting function, dynamically distributes module, is additionally operable to what process was distributed altogether
It is stopping distribution transmission registers memory unit after maximum to send registers memory unit number.
In the specific implementation, system is used in the above-mentioned Memory Allocation based on rdma protocol provided in an embodiment of the present invention
In, in order to ensure that the number of the transmission registers memory unit of every sub-distribution is consistent, it can be to send registration to set a numerical value
The 1/N of the maximum of internal storage location number；Wherein N>1 and N is positive integer.
Specifically, a numerical value is set to could be provided as sending the 1/10 of the maximum of registers memory unit number.
In the specific implementation, system is used in the above-mentioned Memory Allocation based on rdma protocol provided in an embodiment of the present invention
In, original allocation module, be additionally operable to distribution fixed number value reception registers memory unit.
A kind of Memory Allocation application method and system based on rdma protocol provided in an embodiment of the present invention, including：Process
The transmission registers memory unit of distribution setting numerical value after startup；Setting numerical value, which is less than, sends registers memory unit number most
Big value；Process consumes allocated transmission registers memory unit when sending data；If allocated transmission registers memory unit is not
The transmission registers memory unit of foot, again dynamically distributes setting numerical value.The present invention is moved with the increase for sending data pressure
Increase to state the distribution for sending registers memory unit, so ensureing to be based on the normal information receiving and transmitting function premise of rdma protocol
Under, greatly reduce process initiation post-registration Memory Allocation quantity, and be able to maintain that when process messaging pressure is smaller compared with
Few memory source takes, so as to improve the starting efficiency of individual process, avoid clustered node is chronically at higher memory
Consumption state, improves node memory and consumes too fast situation.
Finally, it is to be noted that, herein, term " comprising ", "comprising" or its any other variant are intended to
Cover non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only include those
Key element, but also including other elements that are not explicitly listed, or further include as this process, method, article or set
Standby intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there are other identical element in the process, method, article or apparatus that includes the element.
Detailed Jie has been carried out to the Memory Allocation application method provided by the present invention based on rdma protocol and system above
Continue, specific case used herein is set forth the principle of the present invention and embodiment, and the explanation of above example is only
It is the method and its core concept for being used to help understand the present invention；Meanwhile for those of ordinary skill in the art, according to this hair
Bright thought, there will be changes in specific embodiments and applications, in conclusion this specification content should not manage
Solve as limitation of the present invention.
Claims (10)
- A kind of 1. Memory Allocation application method based on rdma protocol, it is characterised in that including：The transmission registers memory unit of distribution setting numerical value after process initiation；The setting numerical value is less than described send and registers The maximum of internal storage location number；Process consumes the allocated transmission registers memory unit when sending data；If the allocated transmission registers memory unit deficiency, again in the transmission registration of dynamically distributes setting numerical value Memory cell.
- 2. the Memory Allocation application method according to claim 1 based on rdma protocol, it is characterised in that if allocated The transmission registers memory unit deficiency, again after the transmission registers memory unit of dynamically distributes setting numerical value, also Including：After maximum, to stop, distribution is described to be sent in registration the number for the transmission registers memory unit that process is distributed altogether Memory cell.
- 3. the Memory Allocation application method according to claim 2 based on rdma protocol, it is characterised in that the setting Numerical value is the 1/N of the maximum of the transmission registers memory unit number；Wherein N>1 and N is positive integer.
- 4. the Memory Allocation application method according to claim 3 based on rdma protocol, it is characterised in that the setting Numerical value is the 1/10 of the maximum of the transmission registers memory unit number.
- 5. the Memory Allocation application method according to claim 1 based on rdma protocol, it is characterised in that after process initiation While the transmission registers memory unit of distribution setting numerical value, further include：Distribute the reception registers memory unit of fixed number value.
- 6. a kind of Memory Allocation based on rdma protocol uses system, it is characterised in that including：Original allocation module, the transmission registers memory unit for distribution setting numerical value after process initiation；The setting number Value is less than the maximum of the transmission registers memory unit number；Consumable module, consumes the allocated transmission registers memory unit when sending data for process；Dynamically distributes module, if insufficient for the allocated transmission registers memory unit, dynamically distributes set number again The transmission registers memory unit of value.
- 7. the Memory Allocation according to claim 6 based on rdma protocol uses system, it is characterised in that the dynamic point With module, the transmission registers memory unit number that the process that is additionally operable to is distributed altogether is the stopping distribution hair after maximum Send registers memory unit.
- 8. the Memory Allocation according to claim 7 based on rdma protocol uses system, it is characterised in that the setting Numerical value is the 1/N of the maximum of the transmission registers memory unit number；Wherein N>1 and N is positive integer.
- 9. the Memory Allocation according to claim 8 based on rdma protocol uses system, it is characterised in that the setting Numerical value is the 1/10 of the maximum of the transmission registers memory unit number.
- 10. the Memory Allocation according to claim 6 based on rdma protocol uses system, it is characterised in that described initial Distribution module, is additionally operable to the reception registers memory unit of distribution fixed number value.
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| CN201711024460.8A CN107908474A (en) | 2017-10-27 | 2017-10-27 | A kind of Memory Allocation application method and system based on rdma protocol |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109194721A (en) * | 2018-08-15 | 2019-01-11 | 无锡江南计算技术研究所 | A kind of asynchronous RDMA communication dynamic memory management method and system |
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| CN106873915A (en) * | 2017-02-22 | 2017-06-20 | 郑州云海信息技术有限公司 | A kind of data transmission method and device based on RDMA registers memory blocks |
| CN107147590A (en) * | 2017-07-12 | 2017-09-08 | 郑州云海信息技术有限公司 | A kind of method and system based on rdma protocol message communicating |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20050132327A1 (en) * | 2003-12-15 | 2005-06-16 | Mountain Highland M. | Software development environment |
| CN104166597A (en) * | 2013-05-17 | 2014-11-26 | 华为技术有限公司 | Remote memory allocation method and device |
| CN106873915A (en) * | 2017-02-22 | 2017-06-20 | 郑州云海信息技术有限公司 | A kind of data transmission method and device based on RDMA registers memory blocks |
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Application publication date: 20180413 |