CN109508151A - A method of promoting solid state hard disk performance - Google Patents
A method of promoting solid state hard disk performance Download PDFInfo
- Publication number
- CN109508151A CN109508151A CN201811356774.2A CN201811356774A CN109508151A CN 109508151 A CN109508151 A CN 109508151A CN 201811356774 A CN201811356774 A CN 201811356774A CN 109508151 A CN109508151 A CN 109508151A
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- mapping table
- hard disk
- solid state
- state hard
- interim
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- 239000007787 solid Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000001737 promoting effect Effects 0.000 title claims abstract description 8
- 238000013507 mapping Methods 0.000 claims abstract description 98
- 238000010304 firing Methods 0.000 claims description 2
- 230000004044 response Effects 0.000 abstract description 5
- 238000011017 operating method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 241001269238 Data Species 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
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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
-
- 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
- G06F3/0629—Configuration or reconfiguration of storage systems
-
- 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
- G06F3/0673—Single storage device
- G06F3/0679—Non-volatile semiconductor memory device, e.g. flash memory, one time programmable memory [OTP]
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The invention proposes a kind of methods for promoting solid state hard disk performance.Reach the method for responding user data write operation in mapping table memory phase by increasing interim mapping table, to effectively promote the write performance of this stage SSD, reduces performance shake, promote solid state hard disk performance.Judge whether interim mapping table is empty it is characterized in that increasing after the operation for needing to retrieve or update mapping table in the read command of solid state hard disk system response host or write order, if being not sky, then increase retrieval or update the operation of interim mapping table, the retrieval or the method for updating the operating method of interim mapping table and operating mapping table are consistent.It is characterized in that the data structure of mapping table and interim mapping table is consistent.
Description
Technical field
The present invention relates to solid state hard disk control technology, in particular to a kind of method for promoting solid state hard disk performance.
Background technique
During SSD operation while processes user data, some system datas are also handled, and often in processing system
When data, SSD can block the response for user data.Wherein typical scene first is that solid-state hard disc equipment usually in memory
Logic is maintained to the mapping table of physical address, with the write-in of user data, mapping table can constantly update, and system is in order to answer
The mapping table powered on again after power down is rebuild, mapping table is written to NAND flash by meeting timing in whole or in part
In.Existing strategy is all when suspending the modification and storage for mapping table during this, this relates to mapping table during this period
It is in the lock state, the write request of user can be suspended, and lead to not the write order for responding user data, to operate the phase herein
Between, SSD performance can a degree of decline.Write performance during Fig. 1 is mapping table storage shakes schematic diagram, in system maintenance
The write performance decline i.e. write performance shake of short time are caused during modifying Mapping table flush to mapping table.?
The write performance of external SSD apparently at this time will decline, and on the whole be exactly that inconsistent there are write performance jitter problems for writing rate.
Summary of the invention
For disadvantages described above, object of the present invention is to how overcome to modify Mapping to mapping table in system maintenance
Solid state hard disk performance jitter problem caused by during table flush.
The invention proposes a kind of methods for promoting solid state hard disk performance in order to solve problem above, it is characterised in that solid
Increase the interim map operation of creation in state hard-disk system, solid state hard disk system also creates one while creating mapping table
The interim mapping table of a sky, solid state hard disk system is during responding the write order that host issues, when solid state hard disk system executes
To when needing to update mapping table, detect current mapping table be in the lock state can not execute when, then directly by need update arrive
The list item data of mapping table are updated to interim mapping table；Whether mapping table judges in interim mapping table to be sky when unlocking, if not
Then the list item data in interim mapping table are merged into mapping table for sky, and empty interim mapping table.
The method of the promotion solid state hard disk performance, it is characterised in that in the read command of solid state hard disk system response host
Or increase after the operation for needing to retrieve or update mapping table in write order and judge whether interim mapping table is sky, if not being
Sky then increases retrieval or updates the operation of interim mapping table, the retrieval or the operating method and operation for updating interim mapping table
The method of mapping table is consistent.
The method of the promotion solid state hard disk performance, it is characterised in that the data structure of mapping table and interim mapping table is protected
It holds consistent.
The present invention responds the side of user data write operation in mapping table memory phase to reach by increasing interim mapping table
Method reduces performance shake, promotes solid state hard disk performance to effectively promote the write performance of this stage SSD.
Detailed description of the invention
Write performance during Fig. 1 is mapping table storage shakes schematic diagram；
Fig. 2 is that the mapping table of write order triggering updates schematic diagram；
Fig. 3 is the schematic diagram of routine data write-in；
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.
A mapping table is all maintained inside solid state hard disk, which has recorded number stored in FLASH in detail
According to logical address to the transformational relation of physical address, all user data read-write operations will be according to the logical address of order
It just can be carried out the corresponding read-write operation for being directed to NAND flash after obtaining corresponding physical address after inquiry mapping table.Fig. 3 is
The schematic diagram of routine data write-in, all read write command WR are required to execute after inquiry mapping table obtains physical address and can just be held
Read-write operation of the row to NAND flash；Fig. 2 be write order triggering mapping table update schematic diagram, write operation executed it is right
Also need to increase the update operation to mapping table after the write operation of NAND flash, mapping table needs to patrol new write-in data page
It collects the corresponding physical address PPA of address LPA and is updated operation, this write-in data of host could be replied after the completion of only updating
It completes.
With the write-in of user data, mapping table can constantly update, and system is in order to cope with reflecting of being powered on after power down again
Firing table is rebuild, being written in NAND flash in whole or in part by mapping table of meeting timing.It is existing during mapping table stores
Strategy, when occurring needing to be carrying out because of system maintenance that mapping table is written to NAND in whole or in part
Flash then locks current mapping table, and the external modification for mapping table of pause operates, and write request of user can be temporary during this
Stop, therefore even if current write operation has actual write in NAND flash, but the update due to being unable to complete mapping table
Operation, the update that just can be performed after can only waiting in mapping table write-in NAND flash to mapping table operate, suspend during causing
The problem of responding write operation.Reality executes mapping table in system and NAND is written since existing solid state hard disk all supports multichannel
Other channels still can execute read write command parallel when flash, therefore because can not execute update either access map
The operation of table and suspend read write command completely is inappropriate.
This programme is applied to by increasing interim mapping table temp_mapping_table, the table newly in main mapping table storage period
Between, if user issues write request, the mapping table modification information that write request generates is recorded in interim mapping table, thus will not
The modification for influencing ongoing main mapping table in the same time, it is real without carrying out the operation of pause user data write order
The quick response of existing time period user command write operation.Externally, the decline for inscribing performance at this time can be substantially reduced, is protected
Demonstrate,prove the consistency of system performance.
By increasing the interim map operation of creation in solid state hard disk system, solid state hard disk system is mapped in creation
Also an empty interim mapping table is created while table, the data structure of mapping table and interim mapping table is consistent, and solid-state is hard
Disc system is during responding the write order that host issues, when solid state hard disk system, which is gone to, to be needed to update mapping table, detection
It is in the lock state to current mapping table when can not execute, then will directly need to update list item data update to mapping table to facing
When mapping table；Whether mapping table judges in interim mapping table to be sky when unlocking, by the table in interim mapping table if being not sky
Item data is merged into mapping table, and empties interim mapping table.
In the operation for needing to retrieve or update mapping table in the read command of solid state hard disk system response host or write order
Increase afterwards and judge whether interim mapping table is empty, if being not sky, increases retrieval or update the operation of interim mapping table, it is described
The method of the operating method and operation mapping table of retrieving or update interim mapping table is consistent.
The above disclosure is only one embodiment of the present invention, and of course, the scope of this right cannot be limited by this,
Those skilled in the art can understand all or part of the processes for realizing the above embodiment, and according to the claims in the present invention institute
The equivalent variations of work still falls within the range that the present invention is covered.
Claims (3)
1. a kind of method for promoting solid state hard disk performance, it is characterised in that increase a creation in solid state hard disk system and temporarily reflect
Firing table operation, solid state hard disk system also create an empty interim mapping table, solid state hard disk system while creating mapping table
During responding the write order that host issues, when solid state hard disk system, which is gone to, to be needed to update mapping table, detect current
Mapping table is in the lock state when can not execute, then will directly need to update the list item data for arriving mapping table and update to interim mapping
Table；Whether mapping table judges in interim mapping table to be sky when unlocking, by the list item data in interim mapping table if being not sky
It is merged into mapping table, and empties interim mapping table.
2. the method according to claim 2 for promoting solid state hard disk performance, it is characterised in that responded in solid state hard disk system
In the read command of host or write order need retrieve or update mapping table operation after increase judge interim mapping table whether be
Sky increases retrieval or updates the operation of interim mapping table if being not sky, the retrieval or the operation for updating interim mapping table
Method and the method for operation mapping table are consistent.
3. the method according to claim 1 or 2 for promoting solid state hard disk performance, it is characterised in that mapping table and interim mapping
The data structure of table is consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811356774.2A CN109508151A (en) | 2018-11-15 | 2018-11-15 | A method of promoting solid state hard disk performance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811356774.2A CN109508151A (en) | 2018-11-15 | 2018-11-15 | A method of promoting solid state hard disk performance |
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| Publication Number | Publication Date |
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| CN109508151A true CN109508151A (en) | 2019-03-22 |
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| CN201811356774.2A Pending CN109508151A (en) | 2018-11-15 | 2018-11-15 | A method of promoting solid state hard disk performance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111949559A (en) * | 2019-05-16 | 2020-11-17 | 北京兆易创新科技股份有限公司 | Data writing method and device and storage equipment |
| WO2023103495A1 (en) * | 2021-12-08 | 2023-06-15 | 深圳忆联信息系统有限公司 | Delayed updating method and apparatus for mapping table of solid state disk, and computer device and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477492A (en) * | 2009-01-21 | 2009-07-08 | 华中科技大学 | Circulating rewriting flash memory equalization method used for solid state disk |
| CN105700830A (en) * | 2016-02-26 | 2016-06-22 | 湖南国科微电子股份有限公司 | Solid-state disk master control supporting WORM storage, solid-state disk and WORM storage method |
| CN107957852A (en) * | 2017-10-13 | 2018-04-24 | 记忆科技(深圳)有限公司 | A kind of method for lifting solid state hard disc consistency of performance |
-
2018
- 2018-11-15 CN CN201811356774.2A patent/CN109508151A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477492A (en) * | 2009-01-21 | 2009-07-08 | 华中科技大学 | Circulating rewriting flash memory equalization method used for solid state disk |
| CN105700830A (en) * | 2016-02-26 | 2016-06-22 | 湖南国科微电子股份有限公司 | Solid-state disk master control supporting WORM storage, solid-state disk and WORM storage method |
| CN107957852A (en) * | 2017-10-13 | 2018-04-24 | 记忆科技(深圳)有限公司 | A kind of method for lifting solid state hard disc consistency of performance |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111949559A (en) * | 2019-05-16 | 2020-11-17 | 北京兆易创新科技股份有限公司 | Data writing method and device and storage equipment |
| CN111949559B (en) * | 2019-05-16 | 2024-04-16 | 兆易创新科技集团股份有限公司 | Data writing method and device and storage equipment |
| WO2023103495A1 (en) * | 2021-12-08 | 2023-06-15 | 深圳忆联信息系统有限公司 | Delayed updating method and apparatus for mapping table of solid state disk, and computer device and storage medium |
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Application publication date: 20190322 |