CN101470645A - High-speed cache data recovery method and apparatus - Google Patents
High-speed cache data recovery method and apparatus Download PDFInfo
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- CN101470645A CN101470645A CNA2007103083010A CN200710308301A CN101470645A CN 101470645 A CN101470645 A CN 101470645A CN A2007103083010 A CNA2007103083010 A CN A2007103083010A CN 200710308301 A CN200710308301 A CN 200710308301A CN 101470645 A CN101470645 A CN 101470645A
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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
- G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
- G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1415—Saving, restoring, recovering or retrying at system level
- G06F11/1435—Saving, restoring, recovering or retrying at system level using file system or storage system metadata
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Abstract
The embodiment of the invention discloses a method for recovering high speed cache data, which comprises: reading backup data, wherein the backup data is used to record file information of files, the files in the backup data ,which correspond to the file information are written in high speed cache. The embodiment of the invention further discloses a device for recovering the high speed cache data. The embodiment of the invention recovers the files in the high speed cache through using the backup data which is stored a memory, can recover the files in the high speed cache in a short time, and the hit rate of the high speed cache is rapidly increased.
Description
Technical field
The present invention relates to computer memory technical field, particularly a kind of method and apparatus of high-speed cache data recovery.
Background technology
High-speed cache is a storage space between processor and storer, and its storage space is less than storer, and processor access high-speed cache speed is far faster than the speed of processor access storer.
When processor received the request of access of file, file is opened and read to first reference-to storage.Because memory access speed is slower, will improve the efficient of processing greatly if file is kept in the high-speed cache, shorten the access time of these files.But the capacity of the high-speed cache of system also is limited, All Files all can not be left in the high-speed cache.
Adopt the access frequency of the file on the record storage at present, regularly or aperiodically will partly visit frequent file load in high-speed cache, upgrade the file of preserving in the high-speed cache simultaneously, solve the limited shortcoming of cache capacity.
For example the server apparatus of the CRBT of operator or customer service office point as shown in Figure 1.
Fig. 1 is the CRBT of operator or the structural drawing of customer service office point server apparatus, comprises manager 101, file server 102, a plurality of signal processor 104, a plurality of operational processor 106 and a plurality of resource handler 108.Wherein,
Signal processor 104 is used for carrying out the signaling exchange with miscellaneous equipment and handling;
It is professional that operational processor 106 is used to provide;
Each signal processor 104, operational processor 106 and resource handler 108 in the server apparatus all have one in this equipment independent and unique numbering identify, have inner communication mechanism to carry out the mutual of information between each processor.
Fig. 2 is the structural drawing of resource handler 108.As Fig. 2, resource handler comprises control module 201, file calling module 202, IO module 203 and high-speed cache 204.
High-speed cache 204 is used for the frequent file of visit on the storage file server, reads fast or calls for IO module 203.
For example in the CRBT or customer service office point of operator, ringtone file generally all is stored on the file server 205.When resource handler need carry out the voice playback operation, ringtone file is opened and read to control module 201 control IO modules 203 access file servers 205, play by file calling module 202 again.For the speed that improves file access and read, resource handler can be created high-speed cache 204 in internal memory, resource handler is according to file access frequency, to use frequent ringtone file regularly or aperiodically to be loaded in the high-speed cache 204, and upgrade the ringtone file of depositing in the high-speed cache 204.File calling module 202 visit these when being loaded into file in the high-speed cache 204, just do not need access file server 205, but play-over the ringtone file in the high-speed cache 204.Because the access frequency of file is to change, therefore control module 201 need be eliminated the file in the high-speed cache 204 and upgrades according to certain mechanism, the file that access frequency is lower is deleted from high-speed cache 204, and the new file that the current accessed frequency is high is kept in the high-speed cache 204.
Because high-speed cache 204 is actually the part of internal memory, the access frequency information of file also all is to be kept in the internal memory, so whenever resource handler restarts, high-speed cache 204 will lose all data of preservation, these data can only be set up again.
In the high-speed cache 204 data establish dual mode:
One, resource handler restarts, and after after a while, control module 201 indication IO modules 203 select the file load of accessed mistake on the interior during this period of time file server 205 in high-speed cache 204.Afterwards, control module 201 is eliminated according to the data in 203 pairs of high-speed caches 204 of certain mechanism indication IO module and is upgraded.
Two, resource handler restarts, each time during the file on the access file server 205, control module 201 all indicate IO module 203 with accessed file load in high-speed cache 204.After high-speed cache 204 was filled with, control module 201 was eliminated according to the data in 203 pairs of high-speed caches 204 of certain mechanism indication IO module and is upgraded.
In realizing process of the present invention, the inventor finds, and is because the storage space of the space of high-speed cache on the file server, just very important to the selection of the file preserved on the high-speed cache.Each resource handler is relatively independent in the server apparatus, for each resource handler, after restarting at every turn, all need through one period long duration with quite repeatedly after the visit of file, the file preserved in the high-speed cache could relatively stablely get off, cache hit rate (number of times that from high-speed cache, reads file account for this resource handler from the file server with high-speed cache on the ratio of total degree of access file) just can be stabilized in a relative higher level.
With the CRBT office point is example, and employing mode one is under the situation of 1:10000 in the ratio of the storage space of high-speed cache and file server, and after the switch environment initial construction, cache hit rate is raised to about 95% from initial 0%, needs about 30 days; And employing mode two, cache hit rate rises to about 95% under the kindred circumstances needed about 45 days.
No matter that is to say, be mode one or mode two, all needs one period long period and repeatedly after the file access, just can finish rebuliding of data in the high-speed cache, and need the longer time just can reach to keep the relatively stable of cached data.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of method of high-speed cache data recovery, and this method can be recovered the data in the high-speed cache when needed.
The embodiment of the invention also provides a kind of device of high-speed cache data recovery, and this device can recover the data in the high-speed cache when needed apace.
On the one hand, the embodiment of the invention provides a kind of method of high-speed cache data recovery, comprise,
Read Backup Data, wherein Backup Data is used for the fileinfo of log file;
With the pairing file write cache of fileinfo in the described Backup Data.
On the other hand, the embodiment of the invention provides a kind of device of high-speed cache data recovery, comprise,
The Backup Data reading unit is used to read the Backup Data of the fileinfo that is used for log file;
The file recovery unit is used for the pairing file write cache of each fileinfo of described Backup Data.
As seen from the above technical solutions, the method for this high-speed cache data recovery of the present invention can recover the file in the high-speed cache within a short period of time by utilizing the file in the Backup Data recovery high-speed cache.
On the other hand, the device of this high-speed cache data recovery of the present invention can recover the file in the high-speed cache within a short period of time by utilizing the file in the Backup Data recovery high-speed cache.
Description of drawings
Fig. 1 is the structural drawing of the office point server apparatus of operator.
Fig. 2 is the structural drawing of resource handler in the office point server apparatus of operator.
Fig. 3 is the structural drawing of resource handler in the embodiment of the invention one.
Fig. 4 is the process flow diagram of the embodiment of the invention one high speed buffer memory backup.
Fig. 5 is the process flow diagram of the embodiment of the invention one high speed buffer memory reconstruct.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.
The embodiment of the invention is by utilizing the file in the Backup Data recovery high-speed cache, can recover the file in the high-speed cache within a short period of time, making does not need to create again the data of high-speed cache, is beneficial to the hit rate that improves high-speed cache in the shorter time.
Embodiment one
The technical scheme of present embodiment comprises backup and two parts of reconstruct of high-speed cache.
The backup of high-speed cache, being meant derives the fileinfo of file in the high-speed cache and be kept in the Backup Data.
The reconstruct of high-speed cache is meant that resource handler reads Backup Data, and rebuilds high-speed cache according to the fileinfo in the Backup Data.
The fileinfo of preserving in the Backup Data can be the attribute or the complete file of file, and wherein file attribute is the filename of described file and/or the file path that characterizes this document memory location on file server.
The mode of high-speed cache backup can have following four kinds:
First kind of mode is that the content with high-speed cache saves as an independently file, only lists the file attribute of each file of preserving in the high-speed cache in the file, for example file path in file server and/or filename etc.This mode is applicable to the situation that the file path in the file server seldom changes.
The second way is that the content with high-speed cache saves as an independently file, and what preserve in the file is All Files and institutional framework thereof in the high-speed cache, the just complete content of high-speed cache.This mode is applicable to the unfixed situation of the file path in the file server.
The third mode is that the content in the high-speed cache is kept in the catalogue, in this catalogue or its sub-directory each independently file all be a complete file of preserving in the high-speed cache.
The 4th kind of mode is that the content in the high-speed cache is kept in the catalogue, and the file in this catalogue or its sub-directory is listed the file attribute of each file of preserving in the high-speed cache, for example file path in file server and/or filename etc.
Present embodiment is example explanation embodiments of the present invention with the customer service office point equipment of operator still.
Fig. 3 is the structural drawing of resource handler in the present embodiment.
The resource handler of present embodiment comprises: control module 301, file calling module 302, IO module 303 and high-speed cache 304.
The high-speed cache data recovery device of present embodiment can recover the file in the high-speed cache, mainly comprises following functional unit:
The Backup Data generation unit is used to generate the Backup Data of the information that is used to write down described high-speed cache stored file;
The Backup Data writing unit is used for described Backup Data write store;
The Backup Data reading unit is used for reading from storer the Backup Data of the fileinfo that is used to write down the high-speed cache stored file;
The file recovery unit, be used for with the pairing file write cache of each fileinfo of described Backup Data.
As better embodiment of the present invention, the function of this high-speed cache data recovery device is finished by IO module 303, but it will be appreciated by those skilled in the art that, this high-speed cache data recovery device also can be an independent device or have miscellaneous equipment or module in the middle of or finish its function by miscellaneous equipment or assembly.
Fig. 4 is the process flow diagram of present embodiment high speed buffer memory backup.As Fig. 4, the backup procedure of high-speed cache comprises the steps.
Step 401: start the backup of high-speed cache, promptly send the backup request of backup cached data to control module.This backup request can be manually booted by the user by manager and send to control module, also can regularly be started by manager to send to control module.
Step 402: after control module is received backup request, the state of high-speed cache is made as unavailable, this is for fear of the operation of high-speed cache being read and upgrade backup procedure to be impacted.
Step 403: control module indication IO module starts the backup of high-speed cache.
Step 404:IO module is created Backup Data after receiving the backup indication that starts high-speed cache on storer, described Backup Data is used to write down the fileinfo of high-speed cache stored file.According to the backup mode of selecting, Backup Data can have different forms, as file or catalogue etc.
For example, when the IO module adopts the mode of backup complete file, read each file in the described high-speed cache successively, and each file that is read is write described Backup Data successively;
When the IO module adopts the mode of backup file attribute, read each file in the described high-speed cache successively, obtain the attribute of each file, and with the attribute of described each file, the file path of memory location on file server writes described Backup Data successively as filename and/or sign this document.
In order to prevent the Backup Data phase mutual interference of a plurality of same categories of device at different time, this part Backup Data need identify with unique device identification and the current time that writes Backup Data of this equipment that backs up in this customer service office point.
Step 406:IO module reads first file in the high-speed cache according to the mode of the definite backup of configuration, and the fileinfo of extraction this document is used for backup.
According to the difference of backup mode, the fileinfo of backup can be the file attribute tabulation in the high-speed cache, for example tabulation of file path, filename, or all files and institutional framework thereof in the high-speed cache.Backup Data can be the unique file of the file attribute tabulation in the high-speed cache, it can be the unique file of complete file and structure in the high-speed cache, can be the catalogue of complete file and structure in the high-speed cache, can also be four kinds of forms of catalogue of the file attribute of each file in the high-speed cache.
For the unique file of only preserving file attribute list in the high-speed cache, the IO module only need write each file successively in Backup Data file attribute gets final product, for example the file path of each file and/or filename;
For the unique file of preserving complete file and structure in the high-speed cache, the IO module need read in the high-speed cache each file successively and write in the Backup Data successively;
For the form of preserving the catalogue of complete file and structure in the high-speed cache respectively, the IO module will be saved in the file in the high-speed cache in the catalogue of Backup Data respectively;
For the form of preserving the catalogue of the file attribute of file in the high-speed cache respectively, the IO module will be respectively with the file attribute of each file in the high-speed cache, for example file path in file server and/or filename etc. are saved in the catalogue of Backup Data.
In order to distinguish the Backup Data of different resource processor at different time, the name of Backup Data can be following form: " resource handler numbering+BACKUP TIME ", for example be numbered the Backup Data that 252 explorer generated at 2007 07 month 02: 11 on the 14th, title can be " 252_200707140211 ".If only preserve filename and the path of each file on file server in the Backup Data, then the content in the Backup Data can be following form:
“y:\playfile\yesterdayoncemore.wav；
y:\playfile\whenyoubelieve.wav；
y:\playfile\prodeoffly.wav；”
Because it is unavailable that backup procedure high speed buffer memory is set as, and in order to reduce to back up the influence that regular traffic is carried out on minimum degree, can be chosen in the time of portfolio minimum, for example morning, start the backup of high-speed cache.
In the Backup Data of creating on the fileinfo write store of step 408:IO module with first file.
Step 410:IO module reads second file in the high-speed cache, and extracts the fileinfo that needs backup.
In the Backup Data of creating on the fileinfo write store of step 412:IO module with second file.
Step 414:IO module reads the file in the high-speed cache successively, last file in high-speed cache, and extract the fileinfo that needs backup.
In the Backup Data of creating on the fileinfo write store of step 416:IO module with last file.
Step 418:IO module writes the temporal information of current backup in Backup Data.
Step 419:IO module is returned the result that high-speed cache backs up to control module, promptly backs up success or not.
Step 420: control module is received the high-speed cache backup result of IO module, and caching function is set can be used.
Step 422: control module is returned the high-speed cache backup result to manager, promptly backs up success or not.
After resource handler restarts, can be manually or start the restructuring procedure of high-speed cache automatically.
Fig. 5 is the process flow diagram of present embodiment high speed buffer memory reconstruct, comprises following step.
Step 501: start the reconstruct of high-speed cache, promptly send the reconstruct request of reconstruct cached data to control module.This reconstruct request can be worked as resource handler when restarting, and is carried out the reconstruct of high-speed cache by the explorer trigger control module.
Step 502: after control module was received high-speed cache reconstruct request, the state that high-speed cache is set was unavailable.
Step 504: control module indication IO module starts the reconstruct of high-speed cache.
Step 505:IO module reads the backup data information in the storer.
Step 506:IO module selects to be used for the Backup Data of high-speed cache reconstruct from Backup Data.Preferably, the IO module is selected a up-to-date Backup Data of this resource handler from Backup Data, for example, can select a nearest Backup Data of creation-time from optional Backup Data.
Step 508:IO module reads first fileinfo in the Backup Data of selection.
According to the difference of backup mode, fileinfo can be the attribute or the complete file of file, and Backup Data can be the form of file or catalogue independently.
Judging Backup Data when the IO module is when comprising the unique file of complete file or catalogue, to read pairing each file of each fileinfo in the Backup Data successively, and each file that is read is write described high-speed cache successively;
When the IO module judges that Backup Data is the unique file of file attribute of include file or catalogue, read each file attribute in the described Backup Data successively, for example filename that is write down and file path, and according to described filename and/or file path visit is used to store the file server of described file, read described file attribute corresponding file successively from file server, and write described high-speed cache.
For the unique file of only preserving file attribute list in the high-speed cache or catalogue, execution in step 509;
For the unique file of all files and structure in the preservation high-speed cache, perhaps preserve each file in the high-speed cache, execution in step 510 with the form of catalogue.
Step 509:IO module accesses file server reads corresponding file according to fileinfo.If do not find corresponding file, then execution in step 512; Otherwise, continue execution in step 510.
Step 510:IO module is with first file write cache.
Step 512:IO module reads second fileinfo.If only preserve file path and/or filename, then execution in step 513, otherwise execution in step 514.
Step 513:IO module accesses file server reads corresponding file according to file path and/or filename.If do not find corresponding file, then execution in step 516; Otherwise, continue execution in step 514.
Step 514:IO module is with second file write cache.
Step 516:IO module reads the fileinfo in the high-speed cache successively, last fileinfo in high-speed cache.
Step 517: Backup Data is only preserved the path and the filename of file, and IO module accesses file server reads corresponding file according to file path and/or filename.If do not find corresponding file, then execution in step 519; Otherwise, continue execution in step 518.
Step 518:IO module is with last file write cache.
Step 519:IO module is returned the result of high-speed cache reconstruct to control module.
Step 520: control module is received the high-speed cache reconstruction result that the IO module is returned, and is made as the state of high-speed cache available.
Step 522: control module is returned the result of high-speed cache reconstruct.
Through top step, the state when high-speed cache just returns to the last backup, file wherein be last when once backing up by the file of visiting the most continually.
In addition, after certain resource handler restarts,, can select the backup file of other resource handler to load if do not find the file that himself backs up.
When the technical scheme of present embodiment is used in the CRBT office point of operator, can back up the maximum CRBT file of the accessed number of times in the site, when resource handler is restarted, can utilize backup file to recover data in the high-speed cache fast; When providing the server of Video service to use the present embodiment technical scheme, can back up viewed or download maximum video files, or the like.
For the normal office point of operation, each resource handler can be regularly or the Backup Data of its high-speed cache of manual construction.After certain resource handler is restarted, can load the Backup Data that other resource handler is created in this resource handler establishment or the site at once.
For the office point of newly setting up, owing to just bring into operation, the hit rate of the high-speed cache in its resource handler also needs the long period just can be stabilized in higher level, the Backup Data practical degree of its high-speed cache is not high, therefore can directly use the high-speed cache Backup Data of other office point, perhaps, make up its high-speed cache, to improve the hit rate of this new office point high-speed cache according to the Backup Data of the current welcome file of popular information manual creation.
Use upward similar office point for some, intelligent network ip intelligent peripherals office point for example, because its resource is more fixing, can manually generate the high-speed cache Backup Data in advance, directly be loaded in its high-speed cache for this type of office point, the hit rate of the high-speed cache of this class office point can be provided greatly, and significantly reduce the structure time of its high-speed cache.
By the above embodiments as seen, the method for this high-speed cache data recovery of the present invention can be recovered the data in the high-speed cache when needed, and can improve the hit rate of high-speed cache rapidly.
The device of this high-speed cache data recovery of the present invention can recover the data in its high-speed cache when needed, and can improve the hit rate of high-speed cache rapidly.
In sum, more than be part embodiment of the present invention only, be not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1, a kind of method of high-speed cache data recovery is characterized in that, comprise,
Read Backup Data, wherein Backup Data is used for the fileinfo of log file;
With the pairing file write cache of fileinfo in the described Backup Data.
2, method according to claim 1 is characterized in that, further comprise,
Generate described Backup Data.
3, method according to claim 2 is characterized in that, the described Backup Data of described generation comprises,
Generate the Backup Data of the fileinfo of the described file of record according to the file of being stored in the high-speed cache.
4, method according to claim 2 is characterized in that, the described Backup Data of described generation comprises,
Be kept at the described Backup Data of the fileinfo of the described file of file generation record in the high-speed cache as required.
According to each described method of claim 1 to 4, it is characterized in that 5, described fileinfo is a complete file;
Described will comprising with the pairing file write cache of fileinfo in the described Backup Data:
Read the complete file that writes down in the described Backup Data;
The described file that is read is write described high-speed cache.
According to each described method of claim 1 to 4, it is characterized in that 6, described fileinfo is the attribute of file;
Described will comprising with the pairing file write cache of described backup data files information:
Read the file attribute that fileinfo write down in the described Backup Data;
Visit the file server that is used for storage file according to described file attribute, read described file attribute corresponding file, write described high-speed cache from described file server.
7, method according to claim 6 is characterized in that, the attribute of described file is the filename of described file and/or the file path that characterizes this document memory location on file server.
According to claim 2 or 3 described methods, it is characterized in that 8, described fileinfo is a complete file;
The described Backup Data of described generation comprises,
Read each file in the described high-speed cache successively;
Described each file that is read is write described Backup Data successively as fileinfo.
According to claim 2 or 3 described methods, it is characterized in that 9, described fileinfo is the attribute of file;
The described Backup Data of described generation comprises,
Read each file in the described high-speed cache successively, obtain the file attribute of described file;
The file attribute of described each file is write described Backup Data successively as fileinfo.
10, method according to claim 1 is characterized in that, described Backup Data further comprises the temporal information that described fileinfo is write Backup Data.
11, method according to claim 1 is characterized in that, described Backup Data further comprises equipment identification information.
12, a kind of device of high-speed cache data recovery is characterized in that, comprise,
The Backup Data reading unit is used to read the Backup Data of the fileinfo that is used for log file;
The file recovery unit is used for the pairing file write cache of each fileinfo of described Backup Data.
13, device according to claim 12 is characterized in that, further comprise,
The Backup Data generation unit is used to generate described Backup Data.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN2007103083010A CN101470645B (en) | 2007-12-29 | 2007-12-29 | High-speed cache data recovery method and apparatus |
| PCT/CN2008/073656 WO2009092254A1 (en) | 2007-12-29 | 2008-12-22 | Method, device and system for recovering data of cache |
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| CN2007103083010A CN101470645B (en) | 2007-12-29 | 2007-12-29 | High-speed cache data recovery method and apparatus |
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| CN101470645B CN101470645B (en) | 2012-04-25 |
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2007
- 2007-12-29 CN CN2007103083010A patent/CN101470645B/en not_active Expired - Fee Related
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2008
- 2008-12-22 WO PCT/CN2008/073656 patent/WO2009092254A1/en active Application Filing
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| US8521959B2 (en) | 2011-12-21 | 2013-08-27 | Huawei Technologies Co., Ltd. | Method and device for recovering description information, and method and device for caching data in database |
| CN103885901A (en) * | 2012-12-21 | 2014-06-25 | 联想(北京)有限公司 | File reading method, memory device and electronic device |
| CN104331343B (en) * | 2014-11-06 | 2017-09-19 | 努比亚技术有限公司 | File backup method and system |
| CN104331343A (en) * | 2014-11-06 | 2015-02-04 | 深圳市中兴移动通信有限公司 | File backup method and system |
| CN104881334A (en) * | 2015-02-06 | 2015-09-02 | 北京飞杰信息技术有限公司 | Crash-proof cache data protection method and system |
| CN104881334B (en) * | 2015-02-06 | 2018-04-10 | 北京华胜天成软件技术有限公司 | Data cached anti-lost electric protection method and system |
| US9684596B2 (en) | 2015-02-25 | 2017-06-20 | Microsoft Technology Licensing, Llc | Application cache replication to secondary application(s) |
| US9684607B2 (en) | 2015-02-25 | 2017-06-20 | Microsoft Technology Licensing, Llc | Automatic recovery of application cache warmth |
| US10114765B2 (en) | 2015-02-25 | 2018-10-30 | Microsoft Technology Licensing, Llc | Automatic recovery of application cache warmth |
| US10204048B2 (en) | 2015-02-25 | 2019-02-12 | Microsoft Technology Licensing, Llc | Replicating a primary application cache within a secondary application cache |
| CN105302671A (en) * | 2015-11-11 | 2016-02-03 | 中国建设银行股份有限公司 | Automatic backup and rollback method and device |
| CN105718330A (en) * | 2016-01-15 | 2016-06-29 | 浪潮(北京)电子信息产业有限公司 | Linux system backup data recovery method and device |
| CN112925759A (en) * | 2021-03-31 | 2021-06-08 | 北京金山云网络技术有限公司 | Data file processing method and device, storage medium and electronic device |
| CN112925759B (en) * | 2021-03-31 | 2024-05-31 | 北京金山云网络技术有限公司 | Data file processing method and device, storage medium and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101470645B (en) | 2012-04-25 |
| WO2009092254A1 (en) | 2009-07-30 |
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