CN108932111A - A kind of optimization method, medium and the equipment of reading and writing data performance - Google Patents
A kind of optimization method, medium and the equipment of reading and writing data performance Download PDFInfo
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- CN108932111A CN108932111A CN201810620713.6A CN201810620713A CN108932111A CN 108932111 A CN108932111 A CN 108932111A CN 201810620713 A CN201810620713 A CN 201810620713A CN 108932111 A CN108932111 A CN 108932111A
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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
- G06F3/061—Improving I/O performance
- G06F3/0611—Improving I/O performance in relation to response time
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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
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0683—Plurality of storage devices
- G06F3/0685—Hybrid storage combining heterogeneous device types, e.g. hierarchical storage, hybrid arrays
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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
- G06F2003/0697—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers device management, e.g. handlers, drivers, I/O schedulers
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Abstract
The present invention provides optimization method, medium and the equipment of a kind of reading and writing data performance.The method, including：Obtain the write request of new data；Pre-set tertiary storage system is based on using I/O scheduler according to the write request, data are written in storage equipment accordingly；The tertiary storage system, including：Primary storage device, secondary storage devices and tertiary storage device；The primary storage device is external memory；The secondary storage devices are nonvolatile storage；The tertiary storage device is memory；To in the tertiary storage system primary storage device and secondary storage devices in the data that store integrate.Write-in external memory and memory in compared to the prior art, can not only improve the speed of reading and writing data, and can guarantee the persistence of data, and then optimize reading and writing data performance；And the amount of debris in primary storage device can be reduced, and then improves reading and writing data performance.
Description
Technical field
The present invention relates to field of computer technology, and in particular to a kind of optimization method of reading and writing data performance, medium and sets
It is standby.
Background technique
In the prior art, data write operation usually follows direct write strategy, writes direct and permanently stores to guarantee holding for data
Long property.The billing information needs that user submits in typical case scene such as shopping at network are saved in transaction data base rapidly, this
Write operation caused by class is traded may be less than 1KB, and typical database page size is 8KB.For another example, database is to metadata
Update modification also only relate to the write operation of low volume data, and need to be immediately stored in lasting equipment.The place of data write request
Reason crosses over many levels, includes from top to bottom：Block device manager, I/O scheduler, file system and data base management system.?
The problems such as when write operation, each level can lead to the problem of again and write, and multiple direct write can cause equipment performance to decline, and metadata increases.
When reading data, it is also desirable to from permanently store it is middle first copy data to memory, then read from memory, reading speed is slower.
Therefore, in the prior art, reading and writing data speed is slower, and performance is poor.
Summary of the invention
For the defects in the prior art, the present invention provides optimization method, medium and the equipment of a kind of reading and writing data performance,
It can be improved the speed of reading and writing data, optimize reading and writing data performance.
In a first aspect, the present invention provides a kind of optimization methods of reading and writing data performance, including：
Obtain the write request of new data；
Pre-set tertiary storage system is based on using I/O scheduler according to the write request, is set in corresponding storage
Standby middle write-in data；The tertiary storage system, including：Primary storage device, secondary storage devices and tertiary storage device；Institute
Stating primary storage device is external memory；The secondary storage devices are nonvolatile storage；The tertiary storage device is memory；
To in the tertiary storage system primary storage device and secondary storage devices in the data that store integrate.
Optionally, described that pre-set tertiary storage system is based on using I/O scheduler according to the write request,
Data are written in corresponding storage equipment, including：
The performance for the new data for needing to be written in the write request is assessed, assessment result is obtained；
According to the assessment result and the write request, device is transferred using IO, is based on pre-set tertiary storage system,
New data is written in storage equipment accordingly.
Optionally, the performance for the new data for needing to be written in the assessment write request, obtains assessment result, including：
The use value for the new data for needing to be written in the write request is assessed, and the new data is written described two
External memory amount of debris and readwrite performance after grade storage equipment, obtain assessment result.
Optionally, the use value for the new data for needing to be written in the write request is assessed, including：
According to the read-write frequency for the new data for needing to be written in the write request, the use value of the new data is assessed.
Optionally, in the tertiary storage system primary storage device and secondary storage devices in the data that store into
Row integration, including：
Performance Evaluation periodically is carried out to the fragmentation of data of the tertiary storage system；
According to performance evaluation result, in the tertiary storage system primary storage device and secondary storage devices in deposit
The data of storage are integrated.
Optionally, in the tertiary storage system primary storage device and secondary storage devices in the data that store into
Row integration, including：
According to predetermined period, in the tertiary storage system primary storage device and secondary storage devices in store
Data are integrated.
Second aspect, the present invention provide a kind of computer readable storage medium, are stored thereon with computer program, the program
The optimization method of one of first aspect reading and writing data performance is realized when being executed by processor.
The third aspect, the present invention provide a kind of optimization equipment of reading and writing data performance, including：It memory, processor and deposits
The computer program that can be run on a memory and on a processor is stored up, the processor realizes first party when executing described program
The optimization method of one of face reading and writing data performance.
The present invention provides a kind of optimization method of reading and writing data performance, by the way that tertiary storage system is arranged, according to write request,
Write data into the different accumulation layers in tertiary storage system, compared to the prior art in write-in external memory and memory, can not only
The speed of reading and writing data is enough improved, and can guarantee the persistence of data, and then optimize reading and writing data performance；Also, pass through
To in tertiary storage system primary storage device and secondary storage devices in the data that store integrate, level-one can be reduced
The amount of debris in equipment is stored, and then improves reading and writing data performance.
The present invention provides a kind of computer readable storage medium and a kind of optimization equipment of reading and writing data performance, with above-mentioned one
The optimization method of kind reading and writing data performance is for identical inventive concept, beneficial effect having the same.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar element
Or part is generally identified by similar appended drawing reference.In attached drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 is a kind of flow chart of the optimization method of reading and writing data performance provided by the invention.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solution of the present invention.Following embodiment is only used for
Clearly illustrate technical solution of the present invention, therefore be intended only as example, and cannot be used as a limitation and limit protection of the invention
Range.
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.
The present invention provides optimization method, medium and the equipment of a kind of reading and writing data performance.With reference to the accompanying drawing to this hair
Bright embodiment is illustrated.
First embodiment：
Referring to FIG. 1, Fig. 1 is a kind of process of the optimization method for reading and writing data performance that the specific embodiment of the invention provides
Figure, a kind of optimization method of reading and writing data performance provided in this embodiment, including：
Step S101：Obtain the write request of new data.
Step S102：Pre-set tertiary storage system is based on, in phase using I/O scheduler according to the write request
Data are written in the storage equipment answered；The tertiary storage system, including：Primary storage device, secondary storage devices and three-level
Store equipment；The primary storage device is external memory；The secondary storage devices are nonvolatile storage；The tertiary storage is set
Standby is memory.
Step S103：To in the tertiary storage system primary storage device and secondary storage devices in the data that store
It is integrated.
The present invention writes data into the difference in tertiary storage system according to write request by setting tertiary storage system
Accumulation layer, compared to the prior art in write-in external memory and memory, the speed of reading and writing data can not only be improved, and can protect
The persistence of data is demonstrate,proved, and then optimizes reading and writing data performance；Also, by tertiary storage system primary storage device and
The data stored in secondary storage devices are integrated, and can reduce the amount of debris in primary storage device, and then improve data
Readwrite performance.
The present invention provides a kind of tertiary storage system, the tertiary storage system, including：Primary storage device, second level are deposited
Store up equipment and tertiary storage device；Primary storage device is external memory；Secondary storage devices are nonvolatile storage；Tertiary storage is set
Standby is memory.Wherein, nonvolatile storage can guarantee the data persistence of storage, after power-off or shutdown, non-volatile memory
Data in device can't disappear.Moreover, operating system can also directly access nonvolatile storage, from nonvolatile storage
Called data, makes the effect of the existing memory of nonvolatile storage, and plays the role of external memory.Wherein, primary storage device can be
Disk.
In the present invention, nonvolatile storage can be inserted in memory slot.
In the present invention, write request refers to the write request for rewriting data.
The present invention is suitable for distributed computing process and single machine calculating process.
In the prior art, it when rewriting data, needs first to find corresponding data in disk, then rewritten；It is reading
Access according to when, it is also desirable to first find corresponding data in disk, then the data copied in memory, then is read from memory
The data.And nonvolatile storage can be written in the data for needing to rewrite by the present invention, compared to write-in external memory, can accelerate number
According to the speed of write-in；And when reading data, the data are directly read from nonvolatile storage, can accelerate the speed of reading data
Degree, and then the speed of reading and writing data is improved, optimize reading and writing data performance.
In reading and writing data technology, the corresponding data in each address, are being set according to write request to secondary storage in external memory
When standby middle write-in data, need into secondary storage devices, to make corresponding address of cache address in secondary storage devices and
Address in external memory is identical, deposits the write-in revised new data of corresponding data in equipment in second level.In this way, for users, meeting
Intuitively think that new data has been written into external memory, and in fact, new data has been written into secondary storage devices, by this
Page mode is hidden, reading and writing data performance, and good reliability can not only be improved, can guarantee reliable file operation.
It is described according to the write request in a specific embodiment provided by the invention, using I/O scheduler, based on pre-
Data are written in storage equipment accordingly in the tertiary storage system being first arranged, including：It assesses in the write request and needs to be written
New data performance, obtain assessment result；According to the assessment result and the write request, device is transferred using IO, based on pre-
New data is written in storage equipment accordingly in the tertiary storage system being first arranged.
After the write request for obtaining new data, need to judge the position of new data write-in, if write-in external memory, data are read
Take performance poor；If memory is written, next time is more convenient using meeting, but just will be deleted after being powered off, and cannot be persistently stored；If writing
Enter nonvolatile storage, then next time can be more convenient using the data, and can guarantee the persistence of data, but will cause external memory
Disk fragments increase, and are unfavorable for the reading of a large amount of continuous datas.Therefore, it according to write request, when data are written, need to assess and write
The performance of the new data entered judges the writing position of new data according to assessment result.
When the performance for the new data for needing to be written in assessing write request, cost evaluation function can be used, assesses new number
According to performance.
In a specific embodiment provided by the invention, the new data that needs to be written in the assessment write request
Performance obtains assessment result, including：The use value for the new data for needing to be written in the write request is assessed, and will be described
The external memory amount of debris after the secondary storage devices and readwrite performance is written in new data, obtains assessment result.
When assessing the performance of new data, it can be estimated that the use value of new data, and institute is written into the new data
External memory amount of debris and readwrite performance after stating secondary storage devices, it is brought after assessing new data write-in secondary storage devices
Loss and interests after balance loss and interests, determine the writing position of new data.
The performance for assessing new data after balance loss and interests, is based on cost evaluation function, can obtain assessment result,
If the assessment result reaches preset threshold, pre-set tertiary storage system is based on using I/O scheduler according to write request
System, writes new data into secondary storage devices.
If the assessment result does not reach preset threshold, according to write request, using I/O scheduler, based on pre-set
Tertiary storage system, writes new data into primary storage device.
When reading new data, if new data is stored in secondary storage devices, directly read from secondary storage devices
New data；If new data is stored in primary storage device, from primary storage device duplication new data to memory, then from memory
Read new data.
In the present invention, if obtaining read operation when obtaining write operation simultaneously, and read operation is to read the reading of the new data
Operation the new data can then be written in memory, while memory is written, it is also necessary to the performance for assessing new data, it will be new
Primary storage device or secondary storage devices are written in data, guarantee data persistence.When reading new data, if being stored in memory
There is the new data, then can directly read new data from memory.
By the assessment to new data performance, reading and writing data performance can be improved as far as possible, optimize reading and writing data process.
In a specific embodiment provided by the invention, the use for the new data for needing to be written in the write request is assessed
Value, including：According to the read-write frequency for the new data for needing to be written in the write request, that assesses the new data uses valence
Value.
When assessing use value, can be assessed according to the read-write frequency of new data.If new data is written over or reads
Number it is higher, then secondary storage devices are write new data into, to improve reading and writing data performance.
But correspondingly, will also result in disk fragments, loss is brought to data read process.
In the present invention, when judging whether new data can be written secondary storage devices, LUR (Least can also be used
Recently Used) algorithm, judge whether new data can be written secondary storage devices.
In the present invention, when assessing the performance of new data, it may be considered that the use value of new data, external memory amount of debris,
One of whole readwrite performance etc. is a variety of, this is all within the scope of the present invention.
In the present invention, according to write request, when writing new data into tertiary storage system, new data can also be divided into
Multiple portions, each part can be respectively stored into different storage equipment.
After obtaining write request, the performance of new data in write request is assessed, wherein new data may include multiple data,
The assessment result of each data is different, and the processing method of different assessment results is different, according to assessment result, by the number of different piece
According to being respectively stored into tertiary storage system.
Whether new data is needed to be written in memory, then whether the use value for needing to assess the data is very big, if short
New data is often accessed, is often written in time, then can write the data into memory, also, since memory cannot
Therefore the new data of memory is written in persistence, it is also necessary to be written to nonvolatile storage or external memory, guarantee data persistence.
In the present invention, the storage size relationship of primary storage device, secondary storage devices and tertiary storage device
For：Primary storage device is greater than secondary storage devices, and secondary storage devices are greater than tertiary storage device.
When secondary storage devices do not have memory space, then need to judge the history number in new data and secondary storage devices
According to which it is more valuable be stored in secondary storage devices, if the performance evaluation result of new data is than the Performance Evaluation of historical data
As a result poor, then it writes new data into primary storage device；If the performance evaluation result of new data is commented than the performance of historical data
Estimate that result is good, then needs to select some data in secondary storage devices to fall on primary storage device, then write new data into two
Grade storage equipment.
When selecting some data in secondary storage devices to fall on primary storage device, need to assess secondary storage devices
In each data performance, selected according to performance evaluation result, the poor data of selection assessment performance fall on primary storage device.
In the present invention, it when being written with more new data in secondary storage devices, for external memory, just will form very much
Fragmentation of data, when reading a large amount of continuous datas, just relatively time-consuming, therefore, it is necessary to set to secondary storage devices and level-one storage
Data in standby are integrated, as far as possible the continuity of the outer deposit data of more guarantees, and then improve reading and writing data performance.
In a specific embodiment provided by the invention, to the primary storage device and two in the tertiary storage system
The data stored in grade storage equipment are integrated, including：Periodically the fragmentation of data of the tertiary storage system is carried out
Performance Evaluation；According to performance evaluation result, in the primary storage device and secondary storage devices in the tertiary storage system
The data of storage are integrated.
When being integrated to data, performance periodically can be carried out to the fragmentation of data in tertiary storage system and commented
Estimate.If performance evaluation result is poor, the data in tertiary storage system are integrated；If performance evaluation result is better,
It does not need to integrate the data in tertiary storage system.
Which kind of when integrating the data in tertiary storage system, need to judge using Integration Mode, difference integration
The readwrite performance of mode is different.When judgement is using which kind of Integration Mode, it can be estimated that using the read-write after every kind of Integration Mode
Performance is integrated using the higher Integration Mode of readwrite performance.
It, can be defeated by the data in secondary storage devices when being integrated to secondary storage devices and primary storage device
Enter into primary storage device；Data in primary storage device can also be reset；It is also possible to above two mode
Mixed type Integration Mode, this is all within the scope of the present invention.
In a specific embodiment provided by the invention, to the primary storage device and two in the tertiary storage system
The data stored in grade storage equipment are integrated, including：According to predetermined period, the level-one in the tertiary storage system is deposited
The data stored in storage equipment and secondary storage devices are integrated.
In the present invention, tertiary storage system can not also be assessed, directly setting integration period, according to default week
Phase, in tertiary storage system primary storage device and secondary storage devices in the data that store integrate.In this way, can be with
Reduce workload, periodically data are integrated.
In the present invention, when the number of tiles in primary storage device is greater than default fragment-threshold, external memory can be reset,
Eliminate fragment.By reducing fragment, reading and writing data performance can be improved.
More than, it is a kind of optimization method of reading and writing data performance provided by the invention.
Second embodiment：
In above-mentioned first embodiment, a kind of optimization method of reading and writing data performance is provided, it is real in conjunction with above-mentioned first
Example is applied, second embodiment of the invention provides a kind of computer readable storage medium, is stored thereon with computer program, the program quilt
Processor realizes a kind of optimization method for reading and writing data performance that above-mentioned first embodiment provides when executing.
3rd embodiment：
In conjunction with a kind of optimization method for reading and writing data performance that first embodiment provides, the present invention also provides a kind of readings of data
The optimization equipment of write performance, including：Memory, processor and storage are on a memory and the computer that can run on a processor
Program, the processor realize a kind of optimization side for reading and writing data performance that above-mentioned first embodiment provides when executing described program
Method.
In specification of the invention, numerous specific details are set forth.It is to be appreciated, however, that the embodiment of the present invention can be with
It practices without these specific details.In some instances, well known method, structure and skill is not been shown in detail
Art, so as not to obscure the understanding of this specification.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, those skilled in the art should understand that：Its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover within the scope of the claims and the description of the invention.
Claims (8)
1. a kind of optimization method of reading and writing data performance, which is characterized in that including：
Obtain the write request of new data；
Pre-set tertiary storage system is based on using I/O scheduler according to the write request, in storage equipment accordingly
Data are written；The tertiary storage system, including：Primary storage device, secondary storage devices and tertiary storage device；Described one
Grade storage equipment is external memory；The secondary storage devices are nonvolatile storage；The tertiary storage device is memory；
To in the tertiary storage system primary storage device and secondary storage devices in the data that store integrate.
2. the method according to claim 1, wherein described be based on according to the write request using I/O scheduler
Data are written in storage equipment accordingly in pre-set tertiary storage system, including：
The performance for the new data for needing to be written in the write request is assessed, assessment result is obtained；
According to the assessment result and the write request, device is transferred using IO, pre-set tertiary storage system is based on, in phase
New data is written in the storage equipment answered.
3. according to the method described in claim 2, it is characterized in that, the new data for needing to be written in the assessment write request
Performance, obtain assessment result, including：
The use value for the new data for needing to be written in the write request is assessed, and the second level is written into the new data and is deposited
External memory amount of debris and readwrite performance after storing up equipment, obtain assessment result.
4. according to the method described in claim 3, it is characterized in that, assessing making for the new data for needing to be written in the write request
With value, including：
According to the read-write frequency for the new data for needing to be written in the write request, the use value of the new data is assessed.
5. the method according to claim 1, wherein in the tertiary storage system primary storage device and
The data stored in secondary storage devices are integrated, including：
Performance Evaluation periodically is carried out to the fragmentation of data of the tertiary storage system；
According to performance evaluation result, in the tertiary storage system primary storage device and secondary storage devices in store
Data are integrated.
6. the method according to claim 1, wherein in the tertiary storage system primary storage device and
The data stored in secondary storage devices are integrated, including：
According to predetermined period, in the tertiary storage system primary storage device and secondary storage devices in the data that store
It is integrated.
7. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is held by processor
Method described in one of claim 1-6 is realized when row.
8. a kind of optimization equipment of reading and writing data performance, including：Memory, processor and storage on a memory and can handled
The computer program run on device, which is characterized in that the processor realizes one of claim 1-6 institute when executing described program
The method stated.
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| CN103778064A (en) * | 2012-10-23 | 2014-05-07 | 阿里巴巴集团控股有限公司 | Data management method and device |
| CN103810113A (en) * | 2014-01-28 | 2014-05-21 | 华中科技大学 | Fusion memory system of nonvolatile memory and dynamic random access memory |
| CN104102735A (en) * | 2014-07-28 | 2014-10-15 | 三星电子（中国）研发中心 | File system optimizing method and file system optimizing device aiming at database files |
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