CN107273304A - A kind of method and solid state hard disc for improving solid state hard disc order reading performance - Google Patents
A kind of method and solid state hard disc for improving solid state hard disc order reading performance Download PDFInfo
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- CN107273304A CN107273304A CN201710371755.6A CN201710371755A CN107273304A CN 107273304 A CN107273304 A CN 107273304A CN 201710371755 A CN201710371755 A CN 201710371755A CN 107273304 A CN107273304 A CN 107273304A
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- solid state
- hard disc
- state hard
- order
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
- G06F12/023—Free address space management
- G06F12/0238—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory
- G06F12/0246—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory in block erasable memory, e.g. flash memory
Abstract
The invention discloses a kind of method and solid state hard disc for improving solid state hard disc order reading performance, it is characterized in that the order write operation that main frame is issued is write data into the way of breadth First in each passage, the order read operation that main frame is issued is converted to the parallel reading from each passage.When writing data into according to breadth First by way of, by the data block of sequence address, uniformly distribution is written in different passages, it is ensured that reading data concurrent from each passage that can be parallel when order is read, and reading speed has larger lifting.
Description
Technical field
The present invention relates to solid state hard disc control technology, more particularly to a kind of method for improving solid state hard disc order reading performance and
Solid state hard disc.
Background technology
The sequential logic block address LBA (Logical Block Address) that main frame is issued in routine techniques is with depth
Preferential mode is write on Nand Flash Die.For example, Fig. 1 is to be constituted schematic diagram with the data page of depth-first.
SSD supports the passage of 4 parallel work-flows, and respectively Die0, Die1, Die2 and Die3 hypothesis main frame, which are issued, writes LBA0~31, then
LBA0~LBA7 formation Page0 can be written to Die0 by SSD firmwares, and LBA8~LBA15 formation Page1 is written to Die1, LBA16
~LBA23 formation Page2 is written to Die2, and LBA24~LBA31 formation Page3 is written to Die3, the handle in the way of depth-first
Data are write on Die.Follow-up main frame issues reading LBA0~7 again, then firmware finds these LBA all on Die0, then only one
Individual Die goes out data, and other three Die are at leisure, inefficient.
The content of the invention
For disadvantages described above, how the object of the invention improves the speed of solid state hard disc order read operation, and raise speed solid state hard disc
Performance.
A kind of method for improving solid state hard disc order reading performance is proposed in order to solve the problem above present invention, its feature exists
Write data into the order write operation for issuing main frame in the way of breadth First in each passage, it is suitable that main frame is issued
Sequence read operation is converted to the parallel reading from each passage.
The method of described raising solid state hard disc order reading performance, it is characterised in that described breadth First is specially:Patrol
The operating unit block that data block is write operation is collected, data page is the operating unit that solid state hard disc writes NAND, multiple logical datas
Block constitutes a page data；Solid state hard disc supports N number of way parallelism；The numeric order of logic data block is i, solid state hard disc
By the logic data block received, in the passage that the logic data block of No. i-th is issued to No. i%N, each passage will be many respectively
Individual logic data block is combined into after data page to be write in each passage again, and it is hard by solid-state that a data page includes several logic data blocks
The type of disk is determined.
The method of described raising solid state hard disc order reading performance, it is characterised in that described breadth First is specially:Will
Order write operation is combined into multiple pages in breadth First mode respectively according to write operation order, and multiple pages are issued to each and led in order
In road, each channel parallel writes each page data.
A kind of solid state hard disc, it is characterised in that the raising solid state hard disc employed described in claims 1 to 3 any one is suitable
The order reading performance of the method speed-raising solid state hard disc of sequence reading performance.
The present invention when writing data into according to breadth First by way of, the data block of sequence address is uniformly distributed
Be written in different passages, it is ensured that order read when can parallel reading data concurrent from each passage, reading
Speed has larger lifting.
Brief description of the drawings
Fig. 1 is to be constituted schematic diagram with the data page of depth-first；
Fig. 2 is to be constituted schematic diagram with the data page of breadth First.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, 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 protection of the invention.
Fig. 2 is to be constituted schematic diagram with the data page of breadth First.SSD supports the passage Die of 4 parallel work-flows, is respectively
Die0, Die1, Die2 and Die3.Assuming that a data page Page data volume is 4KB.And the least unit that main frame issues data is
LBA, each LBA data volume are 512B.Assuming that Nand Flash have 4 Di e, each passage is write in units of Page
Data, can be assumed that main frame is issued with concurrent working between passage and passage and write logic data block LBA0~31.By the logic of No. i-th
Data block is issued in the passage of No. i%4, and multiple logic data blocks are combined into after data page by each passage respectively writes each again
In passage, one data page of the present embodiment includes 8 logic data blocks.Specially：LBA0,LBA4,LBA8,LBA12,LBA16,
LBA20, LBA24, LBA28 formation Page0 write-ins Die0；LBA1,LBA5,LBA9,LBA13,LBA17,LBA21,LBA25,
LBA29 formation Page1 write-ins Die1；LBA2, LBA6, LBA10, LBA14, LBA18, LBA22, LBA26, LBA30 formation Page2
Write Die2；LBA3, LBA7, LBA11, LBA15, LBA19, LBA23, LBA27, LBA31 formation Page3 write-in Die3, with wide
The preferential mode of degree is write data on Die.Follow-up main frame transmitting sequence reads LBA0~7, and firmware finds that these LBA are laid in
On Die0~Die3, then enable four Die and go out data together, efficiency is greatly promoted.Can be according to Page reality under actual conditions
The mode of size and Die actual number configuration LBA formation Page, principle is similar with above-mentioned example.
LBA formation Page mode, is made to write data and is laid in the way of breadth First on each Die, and subsequent order is read
Die degree of parallelism can be given full play to during data, performance is greatly improved.
Above disclosed is only an embodiment of the present invention, can not limit the interest field of sheet with this certainly,
One of ordinary skill in the art will appreciate that all or part of flow of above-described embodiment is realized, and according to the claims in the present invention institute
The equivalent variations of work, still fall within the scope that the present invention is covered.
Claims (4)
1. a kind of method for improving solid state hard disc order reading performance, it is characterised in that the order write operation for issuing main frame is according to wide
The preferential mode of degree is write data into each passage, and the order read operation that main frame is issued is converted to parallel from each passage
Read.
2. the method according to claim 1 for improving solid state hard disc order reading performance, it is characterised in that described range is excellent
It is specially first:Logic data block is the operating unit block of host write operation, and data page is the operation list that solid state hard disc writes NAND
Member, multiple logic data blocks constitute a page data；Solid state hard disc supports N number of way parallelism；The sequence number of logic data block
Order is i, and solid state hard disc is by the logic data block received, in the passage that the logic data block of No. i-th is issued to No. i%N,
Multiple logic data blocks are combined into after data page by each passage respectively to be write in each passage again, and a data page includes several patrol
Data block is collected to be determined by the type of solid state hard disc.
3. the method according to claim 1 for improving solid state hard disc order reading performance, it is characterised in that described range is excellent
It is specially first:Order write operation is combined into multiple pages in breadth First mode respectively according to write operation order, multiple pages are in order
It is issued in each passage, each channel parallel writes each page data.
4. a kind of solid state hard disc, it is characterised in that employ the raising solid state hard disc order described in claims 1 to 3 any one
The order reading performance of the method speed-raising solid state hard disc of reading performance.
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| CN201710371755.6A CN107273304A (en) | 2017-05-24 | 2017-05-24 | A kind of method and solid state hard disc for improving solid state hard disc order reading performance |
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| CN201710371755.6A CN107273304A (en) | 2017-05-24 | 2017-05-24 | A kind of method and solid state hard disc for improving solid state hard disc order reading performance |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108089996A (en) * | 2017-11-29 | 2018-05-29 | 深圳忆联信息系统有限公司 | A kind of method of the solid state disk reading performance of elevator belt SLC cachings |
| CN108170380A (en) * | 2017-12-28 | 2018-06-15 | 深圳忆联信息系统有限公司 | A kind of method and solid state disk of solid state disk promotion sequence reading performance |
| CN108595110A (en) * | 2018-03-07 | 2018-09-28 | 深圳忆联信息系统有限公司 | A kind of method and solid state disk improving reading performance using Nand characteristics |
| CN108762674A (en) * | 2018-05-24 | 2018-11-06 | 深圳忆联信息系统有限公司 | Promote the method and device of SSD operating lags |
| CN109783025A (en) * | 2019-01-10 | 2019-05-21 | 深圳忆联信息系统有限公司 | The reading method and apparatus of the discrete distribution of alphabetic data page granularity |
| CN110007876A (en) * | 2019-04-15 | 2019-07-12 | 苏州浪潮智能科技有限公司 | A kind of solid state hard disk date storage method, device, equipment and medium |
| CN110134333A (en) * | 2019-05-07 | 2019-08-16 | 深圳忆联信息系统有限公司 | A kind of method and its system reset write-in data flow and promote SSD reading splicing rate |
| CN114968381A (en) * | 2021-02-12 | 2022-08-30 | 西部数据技术公司 | Improving boot process by background rearrangement of read modes |
| CN115454330A (en) * | 2022-08-03 | 2022-12-09 | 中勍科技股份有限公司 | Method for managing multiple SSD reads and writes in parallel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108089996A (en) * | 2017-11-29 | 2018-05-29 | 深圳忆联信息系统有限公司 | A kind of method of the solid state disk reading performance of elevator belt SLC cachings |
| CN108170380A (en) * | 2017-12-28 | 2018-06-15 | 深圳忆联信息系统有限公司 | A kind of method and solid state disk of solid state disk promotion sequence reading performance |
| CN108170380B (en) * | 2017-12-28 | 2021-02-05 | 深圳忆联信息系统有限公司 | Method for improving sequential reading performance of solid state disk and solid state disk |
| CN108595110A (en) * | 2018-03-07 | 2018-09-28 | 深圳忆联信息系统有限公司 | A kind of method and solid state disk improving reading performance using Nand characteristics |
| CN108595110B (en) * | 2018-03-07 | 2021-12-14 | 深圳忆联信息系统有限公司 | Method for improving reading performance by using Nand characteristic and solid state disk |
| CN108762674A (en) * | 2018-05-24 | 2018-11-06 | 深圳忆联信息系统有限公司 | Promote the method and device of SSD operating lags |
| CN109783025A (en) * | 2019-01-10 | 2019-05-21 | 深圳忆联信息系统有限公司 | The reading method and apparatus of the discrete distribution of alphabetic data page granularity |
| CN109783025B (en) * | 2019-01-10 | 2022-03-29 | 深圳忆联信息系统有限公司 | Reading method and device for granularity discrete distribution of sequential data page |
| CN110007876A (en) * | 2019-04-15 | 2019-07-12 | 苏州浪潮智能科技有限公司 | A kind of solid state hard disk date storage method, device, equipment and medium |
| CN110134333A (en) * | 2019-05-07 | 2019-08-16 | 深圳忆联信息系统有限公司 | A kind of method and its system reset write-in data flow and promote SSD reading splicing rate |
| CN114968381A (en) * | 2021-02-12 | 2022-08-30 | 西部数据技术公司 | Improving boot process by background rearrangement of read modes |
| CN115454330A (en) * | 2022-08-03 | 2022-12-09 | 中勍科技股份有限公司 | Method for managing multiple SSD reads and writes in parallel |
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Application publication date: 20171020 |