CN106604111A - Set-top box Flash data storage method and set-top box Flash data storage system - Google Patents
Set-top box Flash data storage method and set-top box Flash data storage system Download PDFInfo
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- CN106604111A CN106604111A CN201611169411.9A CN201611169411A CN106604111A CN 106604111 A CN106604111 A CN 106604111A CN 201611169411 A CN201611169411 A CN 201611169411A CN 106604111 A CN106604111 A CN 106604111A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
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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
- G06F3/0608—Saving storage space on storage systems
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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
- G06F3/0638—Organizing or formatting or addressing of data
- G06F3/0644—Management of space entities, e.g. partitions, extents, pools
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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
- G06F3/0673—Single storage device
- G06F3/0679—Non-volatile semiconductor memory device, e.g. flash memory, one time programmable memory [OTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/432—Content retrieval operation from a local storage medium, e.g. hard-disk
- H04N21/4325—Content retrieval operation from a local storage medium, e.g. hard-disk by playing back content from the storage medium
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Abstract
The invention relates to a set-top box Flash data storage method and a set-top box Flash data storage system. First, partitions are divided into data segments. After data cells are configured, the data cells are sorted and grouped according to the sizes of the data cells and the sizes of the data segments. The grouped data cells are split and regrouped. The number of groups is reduced, and thus, the number of data segments is reduced. Less flash space is occupied. The Flash space is fully utilized. The waste of Flash space is avoided.
Description
Technical field
The present invention relates to field of data storage, more particularly to a kind of Set Top Box Flash data storage method and system.
Background technology
At present, in set-top box functionality development process, need the data storage of Set Top Box modules (is dodged in Flash
Deposit) in.
Present mode is that Flash spaces are divided into partition (subregion) one by one, but due to the storage of Flash
Block is divided into block one by one, and each block size fixes (for example, 64K or 128K etc.)；There is characteristic simultaneously,
Must be that whole block is all wiped when wiping, first wipe and write afterwards.So, in actual use, the mould of Set Top Box
Block data to be stored will also distribute the size of a block even if less than a block size, and this will waste a part
Flash spaces, while when the module data size variation, being also inconvenient to adjust and update, this is all unfavorable for data of set top box
Storage.
The content of the invention
In view of this, it is necessary to module data wasted storage Flash space for above-mentioned Set Top Box, be inconvenient to adjust and
The problem of renewal provides a kind of Set Top Box Flash data storage method and system.
A kind of Set Top Box Flash data storage method that the present invention is provided, comprises the steps：
S10：Each subregion is divided into into memory space identical data block one by one；
S20：Each module for Set Top Box is configured to the data cell of data storage, the data unit size according to
The demand of each module is allocated；
S30：The size of each data cell is obtained, and is ranked up according to ascending order, ranking results are deposited
Storage is in array；
S40：Data cell is divided into into multiple groups according to sequence, the summation of data unit size is less than one in each group
The size of individual data block, and the summation of each group data unit size adds the size of its next data cell more than a number
According to the size of block；
S50：Obtain the summation of each group data unit size and the difference of data block size, by first group, root
According to difference, the data cell in first group is split in the group that other differences can be accommodated, the first assembling and dismantling point continue after finishing
Second group is split, till it can not split；
S60：Being separately dispensed into per group in a data block after by final fractionation.
Further, step S50 is specially：Fractionation for first group, according in first group data cell it is big
It is little, it is descending data cell is started to split, data cell is split to other differences can be accommodated and difference is minimum
In packet, in the same way after the first assembling and dismantling point are finished, continue to split next group, until can no longer split.
Further, methods described also includes：If after the change of data cell configuration information, first by metadata element
Digital independent performs the step S30 to S50 in internal memory, then, and the data cell of new configuration is assigned in data block, point
Read in the new data cell of data Cun Chudao by internal memory with after finishing.
The present invention also provides a kind of Set Top Box Flash data storage system, including：
Each subregion is divided into memory space identical data block one by one by data block division module；
Data cell configuration module, is that each module of Set Top Box is configured to the data cell of data storage, the number
It is allocated according to the demand of each module according to cell size；
Data cell order module, obtains the size of each data cell, and is ranked up according to ascending order,
Ranking results are stored in array；
Data cell is divided into multiple groups according to sequence, data unit size in each group by data cell grouping module
Summation less than a data block size, and summation of each group data unit size is plus its next data cell
Size of the size more than a data block；
Module is split, the summation and the difference of data block size of each group data unit size is obtained, is opened by first group
Begin, according to difference, the data cell in first group is split in the group that other differences can be accommodated, after the first assembling and dismantling point are finished
Continue to split second group, till it can not split；
Distribute module, being separately dispensed into per group in a data block after finally splitting.
Further, the fractionation fractionation of the module for first group, according to the size of data cell in first group, by big
Data cell is started to split to little, data cell is split to into other differences and can be accommodated and in the minimum packet of difference,
In the same way after the first assembling and dismantling point are finished, continue to split next group, until can no longer split.
Further, the system also includes：Update module, if after the change of data cell configuration information, first by former number
According to the digital independent in unit in internal memory, the step S30 to S50 is then performed, the data cell of new configuration is assigned to
In data block, by the new data cell of reading data Cun Chudao in internal memory after being assigned.
Subregion is divided into data block one by one by Set Top Box Flash data storage method of the present invention and system first, configuration
After data cell, according to the size of the size and data block of data cell, packet is ranked up to data cell, after packet
Data cell carries out splitting and reorganizing again, reduces the quantity of packet, so as to reduce the quantity of data block, reduces to Flash spaces
Take, make full use of Flash spaces, it is to avoid the waste in Flash spaces.
Description of the drawings
Fig. 1 is the flow chart of the Set Top Box Flash data storage method in one embodiment；
Fig. 2 is the data cell packet schematic diagram in one embodiment；
Fig. 3 is the data cell packet fragmentation schematic diagram in one embodiment；
Fig. 4 is the structure chart of the Set Top Box Flash data storage system in one embodiment.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
Fig. 1 is the flow chart of the Set Top Box Flash data storage method in one embodiment, as shown in figure 1, the method bag
Include following steps：
S10：Each subregion (partition) is divided into into memory space identical data block (segment) one by one.
Data storage is carried out for convenience of Set Top Box modules and the Flash spaces of Set Top Box are saved, machine top is rationally utilized
The Flash spaces of box, in the embodiment, each subregion in Set Top Box Flash spaces are divided again, each subregion are entered one
Step is divided into the data block for setting memory space one by one, using data block come data storage.
S20：Each module for Set Top Box is configured to the data cell (datacell) of data storage, and data cell is big
The little demand according to each module is allocated.
The modules of Set Top Box in Flash, during data storage, need to be configured to store number for each module in advance
According to data cell, that is, want pre-configured each module to need to distribute great Flash spaces, this is data cell.For
After modules are configured with data cell, the Flash space sizes that each module can be used are the size of data cell.Its
In, data unit size is then allocated according to the demand of each module, once distribution after if size be fixed from change.
S30：The size of each data cell is obtained, and is ranked up according to ascending order, ranking results are deposited
Storage is in array.
After data cell being configured with for each module, next will determine which number is each data cell will be configured in
According in block.In the embodiment, the size of each data cell distribution is obtained first, then according to ascending order will be all
Data cell is ranked up, and obtains ranking results.For example, it is assumed that there are 11 modules, then 11 data cells, size point are assigned
Not Wei 3K, 2K, 3K, 4K, 6K, 4K, 5K, 7K, 6K, 7K and 8K, then sort after for 2K, 3K, 3K, 4K, 4K, 5K, 6K, 6K, 7K,
7K and 8K.
S40：Data cell is divided into into multiple groups according to sequence, the summation of data unit size is less than one in each group
The size of individual data block, and the summation of each group data unit size adds the size of its next data cell more than a number
According to the size of block.
After all of data cell is sorted, segmentation packet is carried out to data cell according to clooating sequence, specifically
Rule of classification is that the summation of data unit size is less than the size of a data block, and each group data cell in each group
The summation of size adds the size of the size more than a data block of its next data cell.For example, as shown in Fig. 2 setting
The size of data block is 10K, then according to rule of classification, be then divided into 2K, 3K, 3K；4K、4K；5K；6K；6K；7K；7K；8K totally 8
Group, being divided into 8 groups needs 8 data blocks.
S50：Obtain the summation of each group data unit size and the difference of data block size, by first group, root
According to difference, the data cell in first group is split in the group that other differences can be accommodated, the first assembling and dismantling point continue after finishing
Second group is split, till it can not split.
According to sequence data cell is divided into multiple groups after, due to the summation of data unit size in each group it is little
, also there is certain difference with data block size in the size of remaining data block, data block is not fully utilized, and this will result in deposits
The waste in storage space, therefore in this embodiment, the summation of each group data unit size and the difference of data block size are obtained first
Value, due to the size of data cell in first group it is minimum, therefore by first group, according to difference first by the data of first group
Unit is split in other packets, splits second group again, till it can not split, thus by other after the first assembling and dismantling point
The space utilization not being utilized in packet, reduces the quantity that packet reduces data block, so as to reduce Flash spaces
Take.
The quantity that packet and data block take is reduced for further, the step is specially：Fractionation for first group, presses
According to the size of data cell in first group, descending starts to split to data cell, data cell is split to other poor
Value can be accommodated and in the minimum packet of difference, in the same way after the first assembling and dismantling point are finished, continue to split next group,
Until can no longer split.For example, the fractionation as Fig. 3.After fractionation is finished, data block is reduced to by original 8 and only needs to 6
It is individual, so as to reduce the occupancy to Flash.
S60：Being separately dispensed into per group in a data block after by final fractionation.
After fractionation is finished, final packet is obtained, each is separately dispensed in a data block, thus will be every
The data cell of individual module is allocated, so as to take full advantage of Flash within the data block according to the mode for taking minimum space
Space, reduces occupancy and waste to Flash spaces.
Additionally, the method also includes：If after the change of data cell configuration information, first the data in metadata element are read
Get in internal memory, then execution step S30 to S50, the data cell of new configuration be assigned in data block, after being assigned by
Read in internal memory in the new data cell of data Cun Chudao.The renewal of data cell and data is completed thus.
Subregion is divided into data block one by one, configuration data unit by the Set Top Box Flash data storage method first
Afterwards, the size according to the size and data block of data cell, is ranked up packet, to the data cell after packet to data cell
Splitting and reorganizing is carried out again, the quantity of packet is reduced, and so as to reduce the quantity of data block, reduces the occupancy to Flash spaces, fully
Using Flash spaces, it is to avoid the waste in Flash spaces.
Meanwhile, the present invention also provides a kind of Set Top Box Flash data storage system, as shown in figure 4, the system is as follows：
Each subregion (partition) is divided into memory space identical data one by one by data block division module 100
Block (segment).
Data storage is carried out for convenience of Set Top Box modules and the Flash spaces of Set Top Box are saved, machine top is rationally utilized
The Flash spaces of box, in the embodiment, each subregion in Set Top Box Flash spaces is carried out drawing by data block division module 100 again
Point, each subregion is further divided into set the data block of memory space one by one, using data block come data storage.
Data cell configuration module 200, is that each module of Set Top Box is configured to the data cell of data storage
(datacell), data unit size is allocated according to the demand of each module.
In Flash during data storage, data cell configuration module 200 needs to be each in advance the modules of Set Top Box
Module is configured to the data cell of data storage, that is, want pre-configured each module to need to distribute great Flash spaces,
This is data cell.It is configured with after data cell for modules, the Flash space sizes that each module can be used as are counted
According to the size of unit.Wherein, data unit size is then allocated according to the demand of each module, once distribution after if size
It is fixed from change.
Data cell order module 300, obtains the size of each data cell, and is arranged according to ascending order
Sequence, ranking results are stored in array.
After data cell being configured with for each module, next will determine which number is each data cell will be configured in
According in block.In the embodiment, data cell order module 300 obtains the size of each data cell distribution first, then according to
All data cells are ranked up by ascending order, obtain ranking results.For example, it is assumed that there are 11 modules, then distribute
Have 11 data cells, size is respectively 3K, 2K, 3K, 4K, 6K, 4K, 5K, 7K, 6K, 7K and 8K, then be 2K after sorting, 3K,
3K, 4K, 4K, 5K, 6K, 6K, 7K, 7K and 8K.
Data cell is divided into multiple groups according to sequence by data cell grouping module 400, and in each group, data cell is big
Size of the little summation less than a data block, and the summation of each group data unit size adds its next data cell
Size more than a data block size.
After all of data cell is sorted, segmentation packet is carried out to data cell according to clooating sequence, specifically
Rule of classification is that the summation of data unit size is less than the size of a data block, and each group data cell in each group
The summation of size adds the size of the size more than a data block of its next data cell.For example, as shown in Fig. 2 setting
The size of data block is 10K, then according to rule of classification, be then divided into 2K, 3K, 3K；4K、4K；5K；6K；6K；7K；7K；8K totally 8
Group, being divided into 8 groups needs 8 data blocks.
Module 500 is split, the summation of each group data unit size and the difference of data block size is obtained, by first group
Start, according to difference, the data cell in first group is split in the group that other differences can be accommodated, the first assembling and dismantling point are finished
Continue afterwards to split second group, till it can not split.
After data cell to be divided into multiple groups according to sequence for data cell grouping module 400, due to number in each group
According to the size of summation all little Yu data blocks of cell size, also there is certain difference with data block size, data block is not filled
Divide and be utilized, this will result in the waste of memory space, therefore in this embodiment, split module 500 and obtain each group number first
According to the difference of the summation and data block size of cell size, due to the size minimum of data cell in first group, therefore by first
Group starts, and first the data cell of first group is split in other packets according to difference, splits the point after the first assembling and dismantling again
Two groups, till it can not split, thus by other be grouped in the space utilization that is not utilized, reduce packet and subtract
The quantity of few data block, so as to reduce the occupancy in Flash spaces.
The quantity that packet and data block take is reduced for further, fractionation of the module 500 for first group is split, according to
The size of data cell in first group, descending start to split to data cell, and data cell is split to other differences
Can accommodate and in the minimum packet of difference, in the same way after the first assembling and dismantling point are finished, continue to split next group, directly
To can no longer split.For example, the fractionation as Fig. 3.After fractionation is finished, data block is reduced to by original 8 and only needs to 6
It is individual, so as to reduce the occupancy to Flash.
Distribute module 600, being separately dispensed into per group in a data block after finally splitting.
After fractionation is finished, final packet is obtained, each is separately dispensed into a data block by distribute module 600
In, thus the data cell of each module is allocated, so as to fill within the data block according to the mode for taking minimum space
Divide and make use of Flash spaces, reduce occupancy and waste to Flash spaces.
Additionally, the system also includes：Update module, if after the change of data cell configuration information, first by metadata element
In digital independent in internal memory, then by data cell order module 300, data cell grouping module 400 and split module
500 are processed, and the data cell of new configuration is assigned in data block, new by data Cun Chudao are read in internal memory after being assigned
In data cell.The renewal of data cell and data is completed thus.
Subregion is divided into data one by one by the Set Top Box Flash data storage system, data block division module 100 first
Block, after 200 configuration data unit of data cell configuration module, according to the size of the size and data block of data cell, data sheet
First order module 300 and data cell grouping module 400 are ranked up packet to data cell, after splitting 500 pairs of packets of module
Data cell carry out splitting and reorganizing again, reduce the quantity of packet, so as to reduce the quantity of data block, reduce to Flash spaces
Occupancy, make full use of Flash spaces, it is to avoid the waste in Flash spaces.
Subregion is divided into data block one by one by Set Top Box Flash data storage method of the present invention and system first, configuration
After data cell, according to the size of the size and data block of data cell, packet is ranked up to data cell, after packet
Data cell carries out splitting and reorganizing again, reduces the quantity of packet, so as to reduce the quantity of data block, reduces to Flash spaces
Take, make full use of Flash spaces, it is to avoid the waste in Flash spaces.
These are only presently preferred embodiments of the present invention, not to limit the present invention, all spirit in the present invention and
Any modification, equivalent and improvement for being made within principle etc., should be included within the scope of the present invention.
Claims (6)
1. a kind of Set Top Box Flash data storage method, it is characterised in that comprise the steps：
S10：Each subregion is divided into into memory space identical data block one by one；
S20：Each module for Set Top Box is configured to the data cell of data storage, and the data unit size is according to each
The demand of module is allocated；
S30：The size of each data cell is obtained, and is ranked up according to ascending order, ranking results are stored in
In array；
S40：Data cell is divided into into multiple groups according to sequence, the summation of data unit size is less than a number in each group
According to the size of block, and the summation of each group data unit size adds the size of its next data cell more than a data block
Size；
S50：Obtain difference of summation and the data block size of each group data unit size, by first group, according to difference
Value, the data cell in first group is split in the group that other differences can be accommodated, and the first assembling and dismantling point continue to split after finishing
Second group, till it can not split；
S60：Being separately dispensed into per group in a data block after by final fractionation.
2. Set Top Box Flash data storage method according to claim 1, it is characterised in that step S50 is concrete
For：Fractionation for first group, according to the size of data cell in first group, descending starts to split to data cell,
Data cell is split to other differences to accommodate and in the minimum packet of difference, in the same way in the first assembling and dismantling point
After finishing, continue to split next group, until can no longer split.
3. Set Top Box Flash data storage method according to claim 1, it is characterised in that methods described also includes：If
After the change of data cell configuration information, then the digital independent in metadata element is first performed in internal memory, then the step
S30 to S50, the data cell of new configuration is assigned in data block, new by data Cun Chudao are read in internal memory after being assigned
Data cell in.
4. a kind of Set Top Box Flash data storage system, it is characterised in that include：
Each subregion is divided into memory space identical data block one by one by data block division module；
Data cell configuration module, is that each module of Set Top Box is configured to the data cell of data storage, the data sheet
First size is allocated according to the demand of each module；
Data cell order module, obtains the size of each data cell, and is ranked up according to ascending order, will row
Sequence result is stored in array；
Data cell is divided into multiple groups according to sequence by data cell grouping module, and in each group, data unit size is total
With less than a data block size, and each group data unit size summation plus its next data cell size
More than the size of a data block；
Module is split, the summation of each group data unit size and the difference of data block size, by first group, root is obtained
According to difference, the data cell in first group is split in the group that other differences can be accommodated, the first assembling and dismantling point continue after finishing
Second group is split, till it can not split；
Distribute module, being separately dispensed into per group in a data block after finally splitting.
5. Set Top Box Flash data storage system according to claim 4, it is characterised in that the fractionation module for
First group of fractionation, according to the size of data cell in first group, descending starts to split to data cell, by data sheet
Unit is split to other differences and can accommodate and in the minimum packet of difference, in the same way after the first assembling and dismantling point are finished,
Continue to split next group, until can no longer split.
6. Set Top Box Flash data storage system according to claim 4, it is characterised in that the system also includes：More
New module, if after the change of data cell configuration information, first then performing the digital independent in metadata element in internal memory
The step S30 to S50, the data cell of new configuration is assigned in data block, by reading data in internal memory after being assigned
Store in new data cell.
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| CN201611169411.9A CN106604111A (en) | 2016-12-16 | 2016-12-16 | Set-top box Flash data storage method and set-top box Flash data storage system |
| PCT/CN2017/106575 WO2018107887A1 (en) | 2016-12-16 | 2017-10-17 | Set top box flash data storage method and system, and electronic device |
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| CN201611169411.9A CN106604111A (en) | 2016-12-16 | 2016-12-16 | Set-top box Flash data storage method and set-top box Flash data storage system |
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| WO2018107887A1 (en) * | 2016-12-16 | 2018-06-21 | 深圳市九洲电器有限公司 | Set top box flash data storage method and system, and electronic device |
| CN110069219A (en) * | 2019-04-23 | 2019-07-30 | 深信服科技股份有限公司 | A kind of date storage method, system and electronic equipment and storage medium |
| CN113111014A (en) * | 2021-04-07 | 2021-07-13 | 山东英信计算机技术有限公司 | Method, device and equipment for cleaning non-hot data in cache and storage medium |
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| CN110069219B (en) * | 2019-04-23 | 2022-08-09 | 深信服科技股份有限公司 | Data storage method and system, electronic equipment and storage medium |
| CN113111014A (en) * | 2021-04-07 | 2021-07-13 | 山东英信计算机技术有限公司 | Method, device and equipment for cleaning non-hot data in cache and storage medium |
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