CN107193505A - A kind of reading/writing method of solid state hard disc, solid state hard disc and data handling system - Google Patents
A kind of reading/writing method of solid state hard disc, solid state hard disc and data handling system Download PDFInfo
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- CN107193505A CN107193505A CN201710448278.9A CN201710448278A CN107193505A CN 107193505 A CN107193505 A CN 107193505A CN 201710448278 A CN201710448278 A CN 201710448278A CN 107193505 A CN107193505 A CN 107193505A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0604—Improving or facilitating administration, e.g. storage management
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- General Physics & Mathematics (AREA)
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Abstract
This application provides a kind of reading/writing method of solid state hard disc, solid state hard disc and data handling system, the reading/writing method of one of which solid state hard disc, including：Receive original event write request and calculate the execution duration of the original event write request；If the execution duration is not more than preset duration, the original event write request is performed；If the execution duration is more than preset duration, the original event write request is split as at least two event write requests；Wherein, the execution duration of the event write request after each fractionation is not more than the preset duration；The event write request after each fractionation is performed respectively.The application can cause control unit during original event write request is performed, redirect out original event write request, so that control unit can respond the event read request or event write request for performing other higher priority, and then improve the responding ability of control unit.
Description
Technical field
The application is related to solid state hard disc technical field, more particularly to a kind of reading/writing method of solid state hard disc, solid state hard disc and
Data handling system.
Background technology
Solid state hard disc is made up of control unit and solid state storage elements.The control unit of solid state hard disc can be set using many-core
Meter (that is, control unit includes multiple CPU cores), also, using multi-stage pipeline pattern (that is, a multiple CPU core serial process
Pattern) perform event read request or event write request.
In order to improve the efficiency for writing data, a data to be written would generally be split as multiple by the upper layer device of solid state hard disc
Subdata, subdata one flash write request of correspondence, multiple continuous flash write requests constitute the event of data to be written
Write request.
It is understood that when the data volume of data to be written is larger, the quantity for the subdata being split into is also more, institute
It is also more with the quantity of the flash write requests in the event write request of data to be written.Control unit is write in one event of reception please
After asking, all flash write requests in the event write request can be continuously performed.Control unit can not respond other things during this period
Part write request or event read request.
That is, due to only having a streamline in solid state hard disc, therefore when the data volume of a data to be written is larger, control
Unit can be taken for a long time, it is impossible to is redirected out and is responded other event write requests or event read request, and it is single that this can reduce control
The responding ability of member.
The content of the invention
This application provides a kind of reading/writing method of solid state hard disc, solid state hard disc and data handling system, control can be improved
The responding ability of unit processed.
In order to achieve the above object, this application provides following technical characteristic：
A kind of reading/writing method of solid state hard disc, including：
Receive original event write request and calculate the execution duration of the original event write request；
If the execution duration is not more than preset duration, the original event write request is performed；
If the execution duration is more than preset duration, the original event write request is split as at least two events
Write request；Wherein, the execution duration of the event write request after each fractionation is not more than the preset duration；
The event write request after each fractionation is performed respectively.
Optionally, the event write request performed respectively after each fractionation, including：
Perform the event write request after a fractionation；
Determine whether the event read request or event write request of higher priority；
If so, then performing the event read request or event write request of higher priority；
If it is not, then performing the event write request after next fractionation.
Optionally, in addition to：
After event write request after each fractionation is finished, feeds back the original event write request and be finished.
Optionally, it is described that the event write request is split as at least two event write requests, including：
In the way of every predetermined number flash write requests are one group, to multiple in the original event request
Flash write requests are grouped；
Each group is included into predetermined number flash write requests, is defined as the event write request after each fractionation.
Optionally, the calculating process of predetermined number includes：
Calculate the execution duration quotient of the preset duration and a flash write request；
Integer after the quotient is rounded, is defined as the predetermined number.
Optionally, the preset duration includes the permission delay duration of event read request.
A kind of solid state hard disc, including：
Control unit, the event write request original for receiving and when calculating the execution of the original event write request
It is long；If the execution duration is not more than preset duration, the original event write request is performed；If the execution duration is more than
Preset duration, then be split as at least two event write requests by the original event write request；Wherein, the thing after each fractionation
The execution duration of part write request is not more than the preset duration；The event write request after each fractionation is performed respectively.
Optionally, described control unit performs the event write request after each fractionation respectively, specifically includes：
The event write request after a fractionation is performed, judges whether that the event read request or event of higher priority are write and asks
Ask, if so, the event read request or event write request of higher priority are then performed, if it is not, then performing the thing after next fractionation
Part write request.
Optionally, described control unit execution is described is split as at least two event write requests by the event write request
Step, is specifically included：
In the way of every predetermined number flash write requests are one group, to multiple in the original event request
Flash write requests are grouped, and each group is included into predetermined number flash write requests, and the event after each fractionation that is defined as is write please
Ask.
A kind of data handling system, including：
Processing equipment, for obtaining data to be written, generates the original event write request of the data to be written, and send described
Original event write request is to solid state hard disc；
The solid state hard disc, the event write request original for receiving and the execution for calculating the original event write request
Duration；If the execution duration is not more than preset duration, the original event write request is performed；If being grown up during the execution
In preset duration, then the original event write request is split as at least two event write requests；Wherein, after each fractionation
The execution duration of event write request is not more than the preset duration；The event write request after each fractionation is performed respectively.
Pass through above technological means, it is possible to achieve following beneficial effect：
At least two event write requests are split as by taking longer original event write request by one in the application,
So as to become multiple time-consuming shorter event write requests.Control unit can be so caused to perform original event write request
During, original event write request is redirected out, so that control unit can respond the thing for performing other higher priority
Part read request or event write request, and then improve the responding ability of control unit.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of application, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of data handling system disclosed in the embodiment of the present application；
Fig. 2 is a kind of reading/writing method flow chart of solid state hard disc disclosed in the embodiment of the present application；
Fig. 3 is the reading/writing method flow chart of another solid state hard disc disclosed in the embodiment of the present application；
Fig. 4 is the reading/writing method flow chart of another solid state hard disc disclosed in the embodiment of the present application.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only some embodiments of the present application, rather than whole embodiments.It is based on
Embodiment in the application, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of the application protection.
The application scenarios of the application are understood for the ease of present techniques personnel, this application provides a kind of data processing system
System, processing equipment 100 and solid state hard disc 200.Solid state hard disc 200 includes control unit 201 and solid state storage elements 202.This Shen
Please in control unit 201 and solid state storage elements 202 be hardware device.
Processing equipment 100 is used to obtain data to be written, generates the original event write request of the data to be written, and send institute
Original event write request is stated to solid state hard disc.
It is that each subdata presets a preset data amount in processing equipment 100, processing equipment 100 is receiving to be written
After data, data to be written can be split according to preset data amount, so as to be split as be preset data amount multiple subnumbers
According to.
Processing equipment 100 is that each subdata builds a flash write request, and acting as each flash write requests will
Subdata is write into solid state storage elements 202.Multiple continuous flash write requests are constituted data to be written by processing equipment 100
Event write request.
Then, processing equipment 100 sends event write request to solid state hard disc 200.
The implementation procedure of solid state hard disc 200 is described below.Understand for the ease of reader, the thing that processing equipment 100 is sent
Part write request is referred to as original event write request.
Referring to Fig. 2, this Shen provides a kind of reading/writing method of solid state hard disc, specifically includes following steps：
Step S201：Control unit 201 receives original event write request, and calculates the original event write request
Perform duration.
The control unit 201 of solid state hard disc 200 is used using many-core design (control unit includes multiple CPU cores)
One multi-stage pipeline pattern performs event write request or event read request.One of one CPU core processing event write request
Point, so a CPU core is equivalent to one-level.
Referring to the diagram that Fig. 3 is multi-stage pipeline.For convenience of description by taking three class pipeline as an example, three class pipeline bag
Include：First order CPU core, second level CPU core and third level CPU core.
The first order CPU core of control unit 201 can be received to be prestored on original event write request, first order CPU core
There is the execution duration of a flash write request (the execution duration of each flash write requests is consistent).
It is understood that the first order CPU core of control unit 201 can be obtained from original event write request
The quantity of flash write requests.Then, by the execution duration of the quantity of flash write requests and the flash write requests prestored
Product, is defined as the execution duration of original event write request.
Step S202：Control unit 201 judges whether the execution duration is more than preset duration.If so, into step
S204, if it is not, then entering step S203.
Preset duration, which is expressed as predetermined one, to be used to represent the critical value that control unit is taken for a long time, if original
The execution duration of event write request be more than preset duration, then it represents that control unit is when performing original event write request, meeting
Taken for a long time；Otherwise represent that control unit will not be taken for a long time when performing original event write request.
According to one embodiment of the application, preset duration can be the permission delay duration of event read request.
Under normal circumstances, because the priority of event read request is higher than the priority of event write request.Therefore, it is single in control
Member is received after an event read request, should perform event read request under optimal situation at once.However, to insure that solid state hard disc
Normal operation, can allow event read request delay a period of time, most long delay duration be referred to as allow delay duration.
In order to ensure that event read request can be performed normally, control unit does not allow the execution duration of event write request to surpass
Cross permission delay duration.So, preset duration can be the permission delay duration of event read request.
It is default that the first order CPU core of control unit 201 can judge whether the execution duration of original event write request is more than
Duration, if it is not, then showing that original event write request will not take control unit for a long time, into step S203；If so, then table
Show that original event write request can take control unit for a long time, into step S204.
Step S203：Control unit 201 performs the original event write request.
In the case where original event write request will not take control unit for a long time, control unit 201 can be according to
Original implementation procedure performs original event write request.
Specifically：First order CPU core handles a flash write request, is sent after being finished to next stage CPU core,
First order CPU core performs next flash write requests in original event write request again, is being retransmited after being finished under
One-level CPU core, repeats said process until the flash write requests in original event write request are finished.
Next stage CPU core can receive above CPU core implementing result, and after this CPU core is finished, then will will perform knot
Fruit is sent to next stage CPU core, and each CPU core can repeat said process, and to the last a CPU core is finished finally
One flash write request.
After original event write request is finished, feeds back the original event write request to processing equipment and performed
Finish.
Step S204：The original event write request is split as at least two event write requests；Wherein, it is each to split
The execution duration of event write request afterwards is not more than the preset duration.
According to one embodiment of the application, the event write request after each fractionation is write comprising predetermined number flash please
Ask.
Referring to Fig. 3, the calculating process of predetermined number includes：
S301：Calculate the execution duration quotient of the preset duration and a flash write request.
S302：Integer after the quotient is rounded, is defined as the predetermined number.
Due to preset duration be it is fixed, what the execution durations of each flash write requests was also to determine, so, to both
Quotient (the execution duration of preset duration/flash write requests) round, stored integer as predetermined number to first order CPU
In core.
Obtained after being rounded due to the quotient for the execution duration that predetermined number is preset duration and flash write requests, so
It is follow-up that original event write request is split according to predetermined number, it can farthest cause the event write request after splitting to include
A fairly large number of flash write requests, so as to which original event write request to be split as to as far as possible few event write request, to protect as far as possible
The integrality of the original event write request of card.
Referring to Fig. 4, the implementation procedure of this step can include：
S401：In the way of every predetermined number flash write requests are one group, to many in the original event request
Individual flash write requests are grouped.
S402：Each group is included into predetermined number flash write requests, is defined as the event write request after each fractionation.
First order CPU core is split original event write request, and the event write request after each fractionation is comprising default
The flash write requests of quantity.For example, original event write request includes 20 flash write requests, predetermined number is 4, then from
Every 4 flash write requests are split as an event write request in original event write request, so as to obtain the thing after 5 fractionations
Part write request.
Step S205：Control unit 201 performs the event write request after each fractionation respectively.
Control unit 201 can perform the event write request after a fractionation.Specific implementation procedure may refer to above-mentioned to original
The implementation procedure of the event write request of beginning, detailed process is repeated no more.
After event write request after being split at one is finished, it can be determined that whether there is the event of higher priority to read to ask
Ask or event write request；If so, then performing the event read request or event write request of higher priority；If it is not, then performing next
Event write request after individual fractionation.
The predetermined number flash write requests in event write request after one fractionation are continuously performed, after fractionation
Event write request be finished after, the event that control unit may not necessarily continue after the fractionation in original event write request is write
Request, but the event read request or event write request of higher priority are can decide whether, if then performing more Gao You
The event read request or event write request of first level.
If not higher than original event write request priority event read request or event write request, under performing
Event write request after one fractionation, repeats said process, and to the last the event write request after a fractionation is finished.
Control unit 200 is fed back original event write request to processing equipment and has been finished.
By the above, the application has the advantages that：
At least two event write requests are split as by taking longer original event write request by one in the application,
So as to become multiple time-consuming shorter event write requests.Control unit can be so caused to perform original event write request
During, original event write request is redirected out, so that control unit can respond the thing for performing other higher priority
Part read request or event write request, and then improve the responding ability of control unit.
This application provides a kind of solid state hard disc, including：
Control unit, the event write request original for receiving and when calculating the execution of the original event write request
It is long；If the execution duration is not more than preset duration, the original event write request is performed；If the execution duration is more than
Preset duration, then be split as at least two event write requests by the original event write request；Wherein, the thing after each fractionation
The execution duration of part write request is not more than the preset duration；The event write request after each fractionation is performed respectively.
Described control unit performs the event write request after each fractionation respectively, specifically includes：
The event write request after a fractionation is performed, judges whether that the event read request or event of higher priority are write and asks
Ask, if so, the event read request or event write request of higher priority are then performed, if it is not, then performing the thing after next fractionation
Part write request.
Described control unit performs described the step of the event write request is split as at least two event write requests, tool
Body includes：
In the way of every predetermined number flash write requests are one group, to multiple in the original event request
Flash write requests are grouped, and each group is included into predetermined number flash write requests, and the event after each fractionation that is defined as is write please
Ask.
The implementation procedure of control unit may refer to embodiment illustrated in fig. 2, and related implementation procedure, no longer go to live in the household of one's in-laws on getting married herein
State.
If the function described in the present embodiment method is realized using in the form of SFU software functional unit and is used as independent product pin
Sell or in use, can be stored in a computing device read/write memory medium.Understood based on such, the embodiment of the present application
The part contributed to prior art or the part of the technical scheme can be embodied in the form of software product, and this is soft
Part product is stored in a storage medium, including some instructions to cause a computing device (can be personal computer,
Server, mobile computing device or network equipment etc.) perform all or part of step of the application each embodiment methods described
Suddenly.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), deposit at random
Access to memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
The embodiment of each in this specification is described by the way of progressive, what each embodiment was stressed be with it is other
Between the difference of embodiment, each embodiment same or similar part mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use the application.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can in other embodiments be realized in the case where not departing from spirit herein or scope.Therefore, the application
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (10)
1. a kind of reading/writing method of solid state hard disc, it is characterised in that including：
Receive original event write request and calculate the execution duration of the original event write request；
If the execution duration is not more than preset duration, the original event write request is performed；
If it is described execution duration be more than preset duration, by the original event write request be split as at least two events write please
Ask；Wherein, the execution duration of the event write request after each fractionation is not more than the preset duration；
The event write request after each fractionation is performed respectively.
2. the method as described in claim 1, it is characterised in that the event write request performed respectively after each fractionation, bag
Include：
Perform the event write request after a fractionation；
Determine whether the event read request or event write request of higher priority；
If so, then performing the event read request or event write request of higher priority；
If it is not, then performing the event write request after next fractionation.
3. method as claimed in claim 2, it is characterised in that also include：
After event write request after each fractionation is finished, feeds back the original event write request and be finished.
4. the method as described in claim 1, it is characterised in that described that the event write request is split as at least two events
Write request, including：
In the way of every predetermined number flash write requests are one group, multiple flash in the original event request are write
Request is grouped；
Each group is included into predetermined number flash write requests, is defined as the event write request after each fractionation.
5. method as claimed in claim 2, it is characterised in that the calculating process of predetermined number includes：
Calculate the execution duration quotient of the preset duration and a flash write request；
Integer after the quotient is rounded, is defined as the predetermined number.
6. the method as described in claim 1, it is characterised in that the preset duration includes when allowing delay of event read request
It is long.
7. a kind of solid state hard disc, it is characterised in that including：
Control unit, the event write request original for receiving and the execution duration for calculating the original event write request；If
The execution duration is not more than preset duration, then performs the original event write request；If the execution duration is more than default
Duration, then be split as at least two event write requests by the original event write request；Wherein, the event after each fractionation is write
The execution duration of request is not more than the preset duration；The event write request after each fractionation is performed respectively.
8. solid state hard disc as claimed in claim 7, it is characterised in that described control unit performs the thing after each fractionation respectively
Part write request, is specifically included：
The event write request after a fractionation is performed, judges whether the event read request or event write request of higher priority, if
Have, then perform the event read request or event write request of higher priority, asked if it is not, the event then performed after next fractionation is write
Ask.
9. solid state hard disc as claimed in claim 7, it is characterised in that described control unit performs described write the event please
The step of being split as at least two event write requests is asked, is specifically included：
In the way of every predetermined number flash write requests are one group, multiple flash in the original event request are write
Request is grouped, and each group is included into predetermined number flash write requests, is defined as the event write request after each fractionation.
10. a kind of data handling system, it is characterised in that including：
Processing equipment, for obtaining data to be written, generates the original event write request of the data to be written, and send described original
Event write request to solid state hard disc；
The solid state hard disc, the event write request original for receiving and when calculating the execution of the original event write request
It is long；If the execution duration is not more than preset duration, the original event write request is performed；If the execution duration is more than
Preset duration, then be split as at least two event write requests by the original event write request；Wherein, the thing after each fractionation
The execution duration of part write request is not more than the preset duration；The event write request after each fractionation is performed respectively.
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| CN201710448278.9A CN107193505A (en) | 2017-06-14 | 2017-06-14 | A kind of reading/writing method of solid state hard disc, solid state hard disc and data handling system |
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Cited By (1)
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| CN115373610A (en) * | 2022-10-25 | 2022-11-22 | 北京智芯微电子科技有限公司 | Data writing method and device, electronic equipment and storage medium |
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Application publication date: 20170922 |