CN108920284A - Shared drive access method and system - Google Patents
Shared drive access method and system Download PDFInfo
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- CN108920284A CN108920284A CN201810575783.4A CN201810575783A CN108920284A CN 108920284 A CN108920284 A CN 108920284A CN 201810575783 A CN201810575783 A CN 201810575783A CN 108920284 A CN108920284 A CN 108920284A
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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
- G06F9/54—Interprogram communication
- G06F9/544—Buffers; Shared memory; Pipes
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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
- G06F9/54—Interprogram communication
- G06F9/546—Message passing systems or structures, e.g. queues
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Abstract
The present invention provides a kind of shared drive access methods, are applied to internal memory operation processor, including：It include at least one access request in the preset request queue by access request storage into preset request queue when internal memory operation processor receives the access request to shared drive；Obtain the target access request in the preset request queue；It parses the target access and requests the access operation for including, access the shared drive according to the access operation；When accessing completion, access result is transmitted in corresponding objective result queue.Above-mentioned access method, by access request storage into preset request queue, target access request is obtained in the preset request queue, a large amount of access requests under high concurrent is avoided and is waited for, the problem of causing CPU to handle invalid context switching, wasting cpu clock.
Description
Technical field
The present invention relates to mobile service support technology field more particularly to a kind of shared drive access methods and system.
Background technique
It is more in order to guarantee thread-safe when multiple access requests need to access same shared drive in high concurrent
A access request accesses same shared drive using locking mechanisms, when an access request accesses some data of the shared drive
When, access process is protected by way of locking, other thread accesses requests cannot access, until the access is asked
When operation being asked to complete, other access requests just may have access to shared drive.
Inventor carries out existing shared drive access method the study found that due to needing between multiple access requests pair
Lock competition, a large amount of access requests are waited under high concurrent, are caused CPU to handle invalid context switching, are wasted CPU
Clock.
Summary of the invention
In view of this, the present invention provides a kind of shared drive access methods, to solve in the prior art due to multiple
It needs to compete lock between access request, a large amount of access requests are waited under high concurrent, and CPU is caused to handle in vain
The problem of context switching, waste cpu clock.Concrete scheme is as follows：
A kind of shared drive access method is applied to internal memory operation processor, including：
When internal memory operation processor receives the access request to shared drive, the access request is stored to default
Request queue in, in the preset request queue include at least one access request；
Obtain the target access request in the preset request queue；
It parses the target access and requests the access operation for including, access the shared drive according to the access operation；
When accessing completion, access result is transmitted in corresponding objective result queue.
Above-mentioned method, optionally, the target access request obtained in the preset request queue includes：
Parse the access privileges of each access request in the preset request queue；
The access request of highest priority in the preset request queue is requested as the target access.
Optionally when accessing completion, access result is transmitted in corresponding objective result queue for above-mentioned method,
Including：
Parse the thread identification for including in the access result；
According to the thread identification by the access result be transmitted to in thread identification same target result queue.
Above-mentioned method optionally further includes：
Search subject thread corresponding with the access result；
The subject thread is enabled to read the access result in the objective result queue；
The subsequent thread of the subject thread is continued to execute according to the access result.
Above-mentioned method optionally further includes：
According to CPU binding technology, affinity binding is carried out to the internal memory operation processor.
A kind of shared drive access system, is applied to internal memory operation processor, including：
Memory module, when for receiving the access request to shared drive when internal memory operation processor, by the access
Request storage includes at least one access request in the preset request queue into preset request queue；
Module is obtained, for obtaining the request of the target access in the preset request queue；
Access modules are requested the access operation for including for parsing the target access, are accessed according to the access operation
The shared drive；
Transfer module, for when accessing completion, access result to be transmitted in corresponding objective result queue.
Above-mentioned system, optionally, the acquisition module includes：
First resolution unit, for parsing the access privileges of each access request in the preset request queue；
Determination unit, for visiting the access request of highest priority in the preset request queue as the target
Ask request.
Above-mentioned system, optionally, the transfer module includes：
Second resolution unit, for parsing the thread identification for including in the access result；
Transfer unit, for the access result to be transmitted to mesh identical as the thread identification according to the thread identification
It marks in result queue.
Above-mentioned system optionally further includes：
Searching module, for searching subject thread corresponding with the access result；
Read module, for enabling the subject thread read the access result in the objective result queue；
Execution module, for continuing to execute the subsequent thread of the subject thread according to the access result.
Above-mentioned system optionally further includes：
Binding module, for carrying out affinity binding to the internal memory operation processor according to CPU binding technology.
Compared with prior art, the present invention includes the following advantages：
The present invention provides a kind of shared drive access methods, are applied to internal memory operation processor, including：Work as internal memory operation
It is described by access request storage into preset request queue when processor receives the access request to shared drive
It include at least one access request in preset request queue；Obtain the target access request in the preset request queue；
It parses the target access and requests the access operation for including, access the shared drive according to the access operation；When having accessed
Access result is transmitted in corresponding objective result queue by Cheng Shi.Above-mentioned access method stores access request to default
Request queue in, in the preset request queue obtain target access request, avoid and largely accessed under high concurrent
The problem of request is waited for, and is caused CPU to handle invalid context switching, is wasted cpu clock.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of shared drive access method flow chart disclosed in the embodiment of the present application；
Fig. 2 is a kind of another method flow diagram of shared drive access method disclosed in the embodiment of the present application；
Fig. 3 is a kind of another method flow diagram of shared drive access method disclosed in the embodiment of the present application；
Fig. 4 is a kind of another method flow diagram of shared drive access method disclosed in the embodiment of the present application；
Fig. 5 is a kind of shared drive access system structure diagram disclosed in the embodiment of the present application.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
The present invention provides a kind of access method of shared drive, the access method is applied to mobile service support technology
For multithreading in the access process of shared drive, the shared drive can be the shared drive in Java, the visit in field
Ask that the executing subject of method for internal memory operation processor or other can execute shared drive access side of the present invention
Controller or processor of method etc..In the embodiment of the present invention, it is illustrated so that executing subject is internal memory operation processor as an example,
The execution process of the access method is as shown in Figure 1, include step：
S101, when internal memory operation processor receives the access request to shared drive, the access request is stored
It include at least one access request in the preset request queue into preset request queue；
In the embodiment of the present invention, when internal memory operation processor receives access of one or more thread to shared drive
When request, wherein there are corresponding relationships between access request and thread, by access request storage to preset request queue
In.
S102, the target access obtained in the preset request queue are requested；
In the embodiment of the present invention, the sequence according to priority determines that the target access in the preset request queue is asked
It asks.
S103, the parsing target access request the access operation for including, described shared according to access operation access
Memory；
In the embodiment of the present invention, include the access operation to the shared drive, the visit in the target access request
Ask that operation can be the data etc. for accessing or handling in the shared drive.
S104, when access complete when, will access result be transmitted in corresponding objective result queue.
In the embodiment of the present invention, when accessing completion, access can be sent to the internal memory operation processor and completes to instruct, when
When the internal memory operation processor receives the access completion instruction, access result is transmitted to corresponding objective result queue
In.
In the embodiment of the present invention, further include：According to CPU binding technology, affinity is carried out to the internal memory operation processor
Binding, after having carried out affinity binding, the corresponding internal memory operation thread of the internal memory operation processor can be on having formulated CPU
Operation, reduces the memory barrier of Java, improves the hit rate of cpu cache.
The present invention provides a kind of shared drive access methods, are applied to internal memory operation processor, including：Work as internal memory operation
It is described by access request storage into preset request queue when processor receives the access request to shared drive
It include at least one access request in preset request queue；Obtain the target access request in the preset request queue；
It parses the target access and requests the access operation for including, access the shared drive according to the access operation；When having accessed
Access result is transmitted in corresponding objective result queue by Cheng Shi.Above-mentioned access method stores access request to default
Request queue in, in the preset request queue obtain target access request, avoid and largely accessed under high concurrent
The problem of request is waited for, and is caused CPU to handle invalid context switching, is wasted cpu clock.
In the embodiment of the present invention, obtain method flow such as Fig. 2 of the target access request in the preset request queue
It is shown, including step：
The access privileges of each access request in S201, the parsing preset request queue；
In the embodiment of the present invention, each access request can be associated with a priority, the priority can by with institute
The priority of the corresponding thread of access request is stated to determine, or the sequencing of the time generated according to each access request
It determines priority, or is that the determination methods of multiple priorities distributes weight, determined by multiple priorities each in method
Priority determines that the weight of method determines the priority of each access request jointly, is also possible to other preferred priority
Method of determination
S202, the access request of highest priority in the preset request queue is requested as the target access.
When including multiple access requests in the embodiment of the present invention, in the preset request queue, if current priority is most
High target access request, which accesses shared drive, to be completed, when needing to choose new target access request, since access is asked
What Seeking Truth at every moment constantly generated, new access request is had in current request queue and is added, and therefore, determines target every time
When access request, the method and step for repeating S201-S202 is required.
In the embodiment of the present invention, when accessing completion, access result is transmitted to the side in corresponding objective result queue
Method process is as shown in figure 3, include step：
The thread identification for including in S301, the parsing access result；
It include a thread identification in each access result, the thread identification has only in the embodiment of the present invention
One property, for distinguishing different access as a result, the thread identification can number, number, letter or other preferential preferred classes
The mark of type.
S302, the access result is transmitted to and the thread identification same target result team according to the thread identification
In column.
In the embodiment of the present invention, thread and result queue also include thread in thread and result queue there are corresponding relationship
Mark, for the same thread, the thread identification for including in corresponding access result and result queue is identical, therefore, foundation
Thread identification by the access result be transmitted to in thread identification same target result queue.
The access result is transmitted to after the objective result queue, it is also necessary to according to the thread identification, search
Subject thread corresponding with the access result, enable the subject thread read the access in the objective result queue as a result,
The subsequent thread of the subject thread is continued to execute according to the access result.
In the embodiment of the present invention, under high concurrent, all threads that request access to submit access request to request queue, memory
Operation thread obtains access request from request queue, carries out shared drive operation according to access request content, and operation is tied
Fruit is written back in the result queue of the thread, and request thread reads result from the result queue of oneself.It will be more by converting above
Thread locks access shared drive and is converted to single thread without lock access shared drive.
The specific schematic diagram for executing method is as shown in figure 4, include：
(1) thread 1 submits shared drive access request into request queue；
(2) internal memory operation thread obtains shared drive access request from request queue；
(3) internal memory operation thread gives family's shared drive access request internal memory operation shared drive；
(4) internal memory operation result is written back to thread results queue by internal memory operation thread, is obtained next shared drive and is visited
Ask request；
(5) thread 1 is from result queue's read operation as a result, continuing the subsequent execution of thread 1.
In the embodiment of the present invention, corresponding with above-mentioned shared drive access method the embodiment of the invention also provides one
Kind shared drive accesses system, the structural block diagram of the access system, as shown in figure 5, including：
Memory module 401 obtains module 402, access modules 403 and transfer module 404.
Wherein,
The memory module 401, when for receiving the access request to shared drive when internal memory operation processor, by institute
Access request storage is stated into preset request queue, includes at least one access request in the preset request queue；
The acquisition module 402, for obtaining the request of the target access in the preset request queue；
The access modules 403 are requested the access operation for including for parsing the target access, are grasped according to the access
Make to access the shared drive；
The transfer module 404, for when accessing completion, access result to be transmitted to corresponding objective result queue
In.
The present invention provides a kind of shared drives to access system, is applied to internal memory operation processor, including：Work as internal memory operation
It is described by access request storage into preset request queue when processor receives the access request to shared drive
It include at least one access request in preset request queue；Obtain the target access request in the preset request queue；
It parses the target access and requests the access operation for including, access the shared drive according to the access operation；When having accessed
Access result is transmitted in corresponding objective result queue by Cheng Shi.Above-mentioned access system stores access request to default
Request queue in, in the preset request queue obtain target access request, avoid and largely accessed under high concurrent
The problem of request is waited for, and is caused CPU to handle invalid context switching, is wasted cpu clock.
In the embodiment of the present invention, the acquisition module 402 includes：
First resolution unit 405 and determination unit 406.
Wherein,
First resolution unit 405, for parsing the access of each access request in the preset request queue
Priority；
The determination unit 406, for using the access request of highest priority in the preset request queue as institute
State target access request.
In the embodiment of the present invention, the transfer module 404 includes：
Second resolution unit 407 and transfer unit 408.
Wherein,
Second resolution unit 407, for parsing the thread identification for including in the access result；
The transfer unit 408, for being transmitted to the access result and the thread mark according to the thread identification
In sensible same objective result queue.
In the embodiment of the present invention, the access system further includes：
Searching module 409, read module 410 and execution module 411.
Wherein,
The searching module 409, for searching subject thread corresponding with the access result；
The read module 410, for enabling the subject thread read the access result in the objective result queue；
The execution module 411, for continuing to execute the subsequent thread of the subject thread according to the access result.
In the embodiment of the present invention, the access system further includes binding module 412.
Wherein,
The binding module 412, for carrying out affinity to the internal memory operation processor and tying up according to CPU binding technology
It is fixed.
It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment weight
Point explanation is the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
For device class embodiment, since it is basically similar to the method embodiment, so being described relatively simple, related place ginseng
See the part explanation of embodiment of the method.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
For convenience of description, it is divided into various units when description apparatus above with function to describe respectively.Certainly, implementing this
The function of each unit can be realized in the same or multiple software and or hardware when invention.
As seen through the above description of the embodiments, those skilled in the art can be understood that the present invention can
It realizes by means of software and necessary general hardware platform.Based on this understanding, technical solution of the present invention essence
On in other words the part that contributes to existing technology can be embodied in the form of software products, the computer software product
It can store in storage medium, such as ROM/RAM, magnetic disk, CD, including some instructions are used so that a computer equipment
(can be personal computer, server or the network equipment etc.) executes the certain of each embodiment or embodiment of the invention
Method described in part.
The access method and system of a kind of shared drive provided by the present invention are described in detail above, herein
Apply that a specific example illustrates the principle and implementation of the invention, the explanation of above example is only intended to help
Understand method and its core concept of the invention；At the same time, for those skilled in the art, according to the thought of the present invention,
There will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as to this
The limitation of invention.
Claims (10)
1. a kind of shared drive access method, which is characterized in that it is applied to internal memory operation processor, including：
When internal memory operation processor receives the access request to shared drive, the access request is stored to preset and is asked
It asks in queue, includes at least one access request in the preset request queue；
Obtain the target access request in the preset request queue；
It parses the target access and requests the access operation for including, access the shared drive according to the access operation；
When accessing completion, access result is transmitted in corresponding objective result queue.
2. the method according to claim 1, wherein the target access obtained in the preset request queue is asked
Ask including：
Parse the access privileges of each access request in the preset request queue；
The access request of highest priority in the preset request queue is requested as the target access.
3. the method according to claim 1, wherein when access complete when, will access result be transmitted to it is corresponding
In objective result queue, including：
Parse the thread identification for including in the access result；
According to the thread identification by the access result be transmitted to in thread identification same target result queue.
4. the method according to claim 1, wherein further including：
Search subject thread corresponding with the access result；
The subject thread is enabled to read the access result in the objective result queue；
The subsequent thread of the subject thread is continued to execute according to the access result.
5. method according to claim 1,2,3 or 4, which is characterized in that further include：
According to CPU binding technology, affinity binding is carried out to the internal memory operation processor.
6. a kind of shared drive accesses system, which is characterized in that it is applied to internal memory operation processor, including：
Memory module, when for receiving the access request to shared drive when internal memory operation processor, by the access request
It stores in preset request queue, includes at least one access request in the preset request queue；
Module is obtained, for obtaining the request of the target access in the preset request queue；
Access modules request the access operation for including for parsing the target access, according to described in access operation access
Shared drive；
Transfer module, for when accessing completion, access result to be transmitted in corresponding objective result queue.
7. system according to claim 6, which is characterized in that the acquisition module includes：
First resolution unit, for parsing the access privileges of each access request in the preset request queue；
Determination unit, for asking the access request of highest priority in the preset request queue as the target access
It asks.
8. system according to claim 6, which is characterized in that the transfer module includes：
Second resolution unit, for parsing the thread identification for including in the access result；
Transfer unit, for being transmitted to the access result and the thread identification same target knot according to the thread identification
In fruit queue.
9. system according to claim 6, which is characterized in that further include：
Searching module, for searching subject thread corresponding with the access result；
Read module, for enabling the subject thread read the access result in the objective result queue；
Execution module, for continuing to execute the subsequent thread of the subject thread according to the access result.
10. according to system described in claim 6,7,8 or 9, which is characterized in that further include：
Binding module, for carrying out affinity binding to the internal memory operation processor according to CPU binding technology.
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Application publication date: 20181130 |
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