CN110489353A - A kind of raising solid state hard disk bandwidth reading performance method and device - Google Patents
A kind of raising solid state hard disk bandwidth reading performance method and device Download PDFInfo
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- CN110489353A CN110489353A CN201910654011.4A CN201910654011A CN110489353A CN 110489353 A CN110489353 A CN 110489353A CN 201910654011 A CN201910654011 A CN 201910654011A CN 110489353 A CN110489353 A CN 110489353A
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- address
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- information request
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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 raising solid state hard disk bandwidth reading performance methods, comprising the following steps: FTL layers of identification destination address are the reading information request of continuation address；The reading information request of continuation address is merged into a reading information request by FTL layers；FTL layers obtain the destination address for reading information request and send reading instruction to rear end.The invention also discloses a kind of raising solid state hard disk bandwidth reading performance devices, the present invention is during FTL and rear end communication, the transmitting of 1-3 request/completion message data can be reduced, order transmission times during NAND read operation is reduced simultaneously, non-essential time overhead is reduced to a certain extent, and bandwidth can be utilized by effectively improving user.
Description
Technical field
The present invention relates to hard disk performance lift technique field, especially a kind of raising solid state hard disk bandwidth reading performance method
And device.
Background technique
In big data era, the storage of mass data, which is located at, more carrys out consequence, more next in the calculating units rate such as CPU
While higher, the storage of data and reading rate are system bottleneck always.It is gradually reduced now with NAND price, solid-state is hard
The usage quantity of disk also rises year by year.
Read operation is more sensitive to the time for solid state hard disk.The time overhead of read operation is mainly distributed on three
Point: front end receiver user requests and judges；The FTL layers of physical address for being converted into rear end by user's request address, and to
Rear end issues read request；Rear end responds FTL layers of read request, reads data from NAND and is sent to FTL, is finally transmitted back to front end,
Complete the reading process of data.Rear end is determined from the time that NAND reads data by NAND in whole flow process, no optimization space.But
Front end can be reduced with FTL and with the message transmission of rear end by certain mode, so that reducing user reads the waited time.
Summary of the invention
The object of the present invention is to provide a kind of raising solid state hard disk bandwidth reading performance method and devices, can reduce message biography
The quantity passed reduces the time overhead because of message transmission, to improve the bandwidth that user reads data.
To achieve the above object, the present invention adopts the following technical solutions:
First aspect present invention provides a kind of raising solid state hard disk bandwidth reading performance method, comprising the following steps:
FTL layers of identification destination address are the reading information request of continuation address；
The reading information request of continuation address is merged into a reading information request by FTL layers；
FTL layers obtain the destination address for reading information request and send reading instruction to rear end.
With reference to first aspect, in a first possible implementation of that first aspect, the FTL layers of identification destination address is
The reading information request of continuation address, specifically includes:
The operation that address pointed by the continuous read operation of two or more is continuation address is identified as continuation address by FTL layers
Reading information request.
With reference to first aspect, in a second possible implementation of that first aspect, the FTL layers of identification destination address is
The reading information request of continuation address, specifically includes:
Continuous two to four data frame are read the physical address of information request in same TLC pages by FTL layers
Read the reading information request that information request is identified as continuation address.
With reference to first aspect, in first aspect in the third possible implementation, information request is read in the FTL layers of acquisition
Destination address and send reading instruction to rear end, specifically include:
FTL layers, using the lowest address in continuation address as physical address, are read the number that quantity is continuation address, sent
Information request is read to rear end.
With reference to first aspect, in the 4th kind of possible implementation of first aspect, information request is read in the FTL layers of acquisition
Destination address and send reading instruction to after the step of rear end, further includes:
Rear end completes to read information operation, takes back the address buffer where data；
Reading information request is distributed to by the physical address sequence of reading in the address data frame buffer by FTL layers, completes
Read operation.
Second aspect of the present invention provides a kind of raising solid state hard disk bandwidth reading performance device, comprising:
Identification module, FTL layers of identification destination address are the reading information request of continuation address；
Merging module, the reading information request of continuation address is merged into a reading information request by FTL layers；
Read module, FTL layers obtain the destination address for reading information request and send reading instruction to rear end.
In conjunction with second aspect, in second aspect in the first possible implementation, the identification module is used for:
The operation that address pointed by the continuous read operation of two or more is continuation address is identified as continuation address by FTL layers
Reading information request.
In conjunction with second aspect, in second of second aspect possible implementation, the identification module is used for:
Continuous two to four data frame are read the physical address of information request in same TLC pages by FTL layers
Read the reading information request that information request is identified as continuation address.
In conjunction with second aspect, in second aspect in the third possible implementation, the read module is used for:
FTL layers, using the lowest address in continuation address as physical address, are read the number that quantity is continuation address, sent
Information request is read to rear end.
In conjunction with second aspect, in the 4th kind of possible implementation of second aspect, further includes:
Data return module, rear end complete to read information operation, take back the address buffer where data；FTL layers by reading
Physical address sequence reading information request is distributed into the address data frame buffer, complete read operation.
The raising solid state hard disk bandwidth reading performance device of second aspect of the present invention can be realized first aspect and
Method in each implementation of one side, and obtain identical effect.
The effect provided in summary of the invention is only the effect of embodiment, rather than invents all whole effects, above-mentioned
A technical solution in technical solution have the following advantages that or the utility model has the advantages that
The present invention can reduce the transmitting of 1-3 request/completion message data, simultaneously during FTL and rear end communication
Order transmission times during NAND read operation is reduced, thus can reduce by FTL layers of time interacted with rear end to the maximum extent
Number, is reduced by request/unnecessary time overhead of completion message bring, user's tape reading width is improved to the maximum extent, certain
Non-essential time overhead is reduced in degree, bandwidth can be utilized by effectively improving user.
Detailed description of the invention
Fig. 1 is one flow chart of embodiment of the present invention method；
Fig. 2 is two flow chart of embodiment of the present invention method；
Fig. 3 is one schematic diagram of apparatus of the present invention embodiment；
Fig. 4 is two schematic diagram of apparatus of the present invention embodiment.
Specific embodiment
In order to clarify the technical characteristics of the invention, below by specific embodiment, and its attached drawing is combined, to this hair
It is bright to be described in detail.Following disclosure provides many different embodiments or example is used to realize different knots of the invention
Structure.In order to simplify disclosure of the invention, hereinafter the component of specific examples and setting are described.In addition, the present invention can be with
Repeat reference numerals and/or letter in different examples.This repetition is that for purposes of simplicity and clarity, itself is not indicated
Relationship between various embodiments and/or setting is discussed.It should be noted that illustrated component is not necessarily to scale in the accompanying drawings
It draws.Present invention omits the descriptions to known assemblies and treatment technology and process to avoid the present invention is unnecessarily limiting.
As shown in Figure 1, a kind of raising solid state hard disk bandwidth reading performance method, comprising the following steps:
S1, FTL layers of identification destination address are the reading information request of continuation address；
The reading information request of continuation address is merged into a reading information request by S2, FTL layers；
S3, FTL layers obtain the destination address for reading information request and send reading instruction to rear end.
As shown in Fig. 2, a kind of raising solid state hard disk bandwidth reading performance method, comprising the following steps:
S1, FTL layers of identification destination address are the reading information request of continuation address.
The reading information request of continuation address is merged into a reading information request by S2, FTL layers
S3, FTL layers obtain the destination address for reading information request and send reading instruction to rear end.
S4, rear end complete to read information operation, take back the address buffer where data, FTL layers by the physical address read
Reading information request is distributed in the address data frame buffer by sequence, completes read operation.
In step S1, FTL layers of identification destination address are the reading information request of continuation address, are specifically included:
The operation that address pointed by the continuous read operation of two or more is continuation address is identified as continuation address by FTL layers
Reading information request.
The use of the page size in each TLC in NAND is at present 16KB, 4-data frame can be stored, therefore continuous reading is most
4data frame can be mostly supported to read, the present embodiment pays close attention to the company that continuous 2-4 data frame reads corresponding physical address
Continuous property, if most 4 physical address are continuously, 4 read requests to be merged into 1.Specifically, FTL layers by continuous two
Reading information request of the physical address of information request in same TLC pages, which is read, to four data frame is identified as continuation address
Reading information request.
In step S2, FTL layers obtain the destination address for reading information request and send reading instruction to rear end, specifically include:
FTL layers, using the lowest address in continuation address as physical address, are read the number that quantity is continuation address, sent
Information request is read to rear end.
Embodiment can reduce the transmitting of 1-3 request/completion message data, simultaneously during FTL and rear end communication
Order transmission times during NAND read operation is reduced, non-essential time overhead is reduced to a certain extent, effectively mentions
High user can utilize bandwidth.
As shown in figure 3, a kind of raising solid state hard disk bandwidth reading performance device, comprising:
Identification module 101, FTL layers of identification destination address are the reading information request of continuation address；
Merging module 102, the reading information request of continuation address is merged into a reading information request by FTL layers；
Read module 103, FTL layers obtain the destination address for reading information request and send reading instruction to rear end.
As shown in figure 4, a kind of raising solid state hard disk bandwidth reading performance device, comprising:
Identification module 101, FTL layers of identification destination address are the reading information request of continuation address.
Merging module 102, the reading information request of continuation address is merged into a reading information request by FTL layers；
Read module 103, FTL layers obtain the destination address for reading information request and send reading instruction to rear end.
Data return module 104, rear end complete to read information operation, take back the address buffer where data；FTL layers by reading
Reading information request is distributed in the address data frame buffer by the physical address sequence taken, completes read operation.
Identification module 101 is used for:
The operation that address pointed by the continuous read operation of two or more is continuation address is identified as continuation address by FTL layers
Reading information request.
Identification module 101 is used for:
Continuous two to four data frame are read the physical address of information request in same TLC pages by FTL layers
Read the reading information request that information request is identified as continuation address.
Read module 102 is used for:
FTL layers, using the lowest address in continuation address as physical address, are read the number that quantity is continuation address, sent
Information request is read to rear end.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (10)
1. a kind of raising solid state hard disk bandwidth reading performance method, characterized in that the following steps are included:
FTL layers of identification destination address are the reading information request of continuation address；
The reading information request of continuation address is merged into a reading information request by FTL layers；
FTL layers obtain the destination address for reading information request and send reading instruction to rear end.
2. improving solid state hard disk bandwidth reading performance method as described in claim 1, characterized in that the FTL layers of identification mesh
The reading information request that address is continuation address is marked, is specifically included:
The operation that address pointed by the continuous read operation of two or more is continuation address is identified as the reading of continuation address by FTL layers
Information request.
3. improving solid state hard disk bandwidth reading performance method as claimed in claim 2, characterized in that the FTL layers of identification mesh
The reading information request that address is continuation address is marked, is specifically included:
Continuous two to four data frame reading of the physical address of information request in same TLC pages is read FTL layers to believe
Breath request is identified as the reading information request of continuation address.
4. improving solid state hard disk bandwidth reading performance method as claimed in claim 3, characterized in that the FTL layers of acquisition is read
The destination address of information request simultaneously sends reading instruction to rear end, specifically includes:
FTL layers, using the lowest address in continuation address as physical address, are read the number that quantity is continuation address, send and read letter
Breath is requested to rear end.
5. improving solid state hard disk bandwidth reading performance method as claimed in claim 4, characterized in that the FTL layers of acquisition is read
The destination address of information request simultaneously sends reading instruction to after the step of rear end, further includes:
Rear end completes to read information operation, takes back the address buffer where data；
Reading information request is distributed to by the physical address sequence of reading in the address data frame buffer by FTL layers, completes to read behaviour
Make.
6. a kind of raising solid state hard disk bandwidth reading performance device, characterized in that include:
Identification module, FTL layers of identification destination address are the reading information request of continuation address；
Merging module, the reading information request of continuation address is merged into a reading information request by FTL layers；
Read module, FTL layers obtain the destination address for reading information request and send reading instruction to rear end.
7. improving solid state hard disk bandwidth reading performance device as claimed in claim 6, characterized in that the identification module is used
In:
The operation that address pointed by the continuous read operation of two or more is continuation address is identified as the reading of continuation address by FTL layers
Information request.
8. improving solid state hard disk bandwidth reading performance device as claimed in claim 7, characterized in that the identification module is used
In:
Continuous two to four data frame reading of the physical address of information request in same TLC pages is read FTL layers to believe
Breath request is identified as the reading information request of continuation address.
9. improving solid state hard disk bandwidth reading performance device as claimed in claim 8, characterized in that the read module is used
In:
FTL layers, using the lowest address in continuation address as physical address, are read the number that quantity is continuation address, send and read letter
Breath is requested to rear end.
10. improving solid state hard disk bandwidth reading performance device as claimed in claim 9, characterized in that further include:
Data return module, rear end complete to read information operation, take back the address buffer where data；FTL layers by the object read
Reading information request is distributed in the address data frame buffer by reason sequence of addresses, completes read operation.
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| CN201910654011.4A CN110489353A (en) | 2019-07-19 | 2019-07-19 | A kind of raising solid state hard disk bandwidth reading performance method and device |
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| CN201910654011.4A CN110489353A (en) | 2019-07-19 | 2019-07-19 | A kind of raising solid state hard disk bandwidth reading performance method and device |
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| CN112433672A (en) * | 2020-11-12 | 2021-03-02 | 苏州浪潮智能科技有限公司 | Solid state disk reading method and device |
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| CN111176566B (en) * | 2019-12-25 | 2023-09-19 | 山东方寸微电子科技有限公司 | eMMC read-write control method supporting queue command and storage medium |
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Application publication date: 20191122 |