39 results about "Directory entry" patented technology

The invention discloses a maintenance, recording and transmission method, device and equipment for cache consistency, and the recording method comprises the steps: responding to a first processing unit in a processing unit array to cache a first data block, and obtaining a first position coordinate of the first processing unit in the processing unit array, the first coordinate comprises a plurality of values respectively corresponding to a plurality of dimensions of the processing unit array; according to the first coordinate data, a first directory entry corresponding to the first data block in the cache consistency directory is updated, the first directory entry comprises a plurality of arrays corresponding to a plurality of dimensions, and in the first directory entry, the first data block corresponds to the first directory entry; the array corresponding to each dimension is used for marking dimension coordinates of the processing unit which caches the first data block on the dimension. The recording method can reduce the directory capacity.

The present invention relates to the field of computers. Disclosed are a method for adaptively and jointly using cache coherence directory entries, and a computer program product. The method comprises: in response to a read request of a processor core, acquiring a first entry set corresponding to a cache; when there is an available entry in the first entry set, storing ID information of the processor core in the available entry; when there is no entry in the first entry set or there is no available entry in the first entry set, applying for a new entry and storing the ID information in the new entry; in response to a write request of the processor core, acquiring a second entry set corresponding to the cache; determining corresponding processor cores on the basis of ID information stored in entries in the second entry set, and controlling each processor core to execute an operation of invalidating a copy of the cache; and enabling the second entry set to only comprise one entry, and storing the ID information in the entry. The directory capacity is fully utilized and snoop operations for all processor cores can be reduced.

The invention relates to the technical field of data processing, and provides a multi-level data directory dynamic collection method, system and equipment, and the method comprises the steps: receiving a directory operation application submitted by a user at a region node according to a preset data directory description strategy, and carrying out the examination and approval of the directory operation application; according to the approval result, updating the state of the corresponding directory entry at the region node, and storing the updated directory entry in a region directory library; dynamically reporting the approved directory entry with the updated state to a global node; and at the global node, collecting and combining directory entries from at least one region node, updating a global directory library, and providing a unified query service. According to the method, the accuracy and authority of directory information can be improved from a data source, the process and the clear responsibility of data directory management are realized, the flexibility and the timeliness of directory management are considered while the normalization is ensured, and the technical complexity and the cost of system integration and long-term maintenance are remarkably reduced.

The application relates to the field of data processing and discloses a file mounting method, a medium, a program product and an electronic device. In the method, when mounting a to-be-mounted folder, the electronic device can first determine whether the file systems of the to-be-mounted folder are all case-insensitive file systems. If it is determined that the file systems of the to-be-mounted folder are all case-insensitive file systems, the files in the to-be-mounted folder are mounted into a target folder through OverlayFS when the attributes of a directory entry operand DCACHE_NEED_AUTOMOUT and a directory entry operand DCACHE_MANAGE_TRANSIT of the to-be-mounted folder are both invalid, and it is not necessary to determine a directory entry operand DCACHE_OP_HASH and a directory entry operand DCACHE_OP_COMPARE. In this way, the electronic device can mount the folder with the case-insensitive file system through OverlayFS, and access the files through the target folder, which is beneficial to increasing the type of the file system supported by OverlayFS.

The application discloses a local file system management method, electronic equipment and a readable storage medium, relates to the technical field of file management, each object in the local file system comprises a plurality of file storage areas storing index node data, target file metadata of a target file is stored in a file storage area corresponding to idle index node data obtained based on an idle index node queue, and a target directory entry is constructed according to a target file name, a target file type and a target index node number; a target object corresponding to the target file name is determined based on a linear hash function; if the target file name cannot be found in the target object based on a multi-path cuckoo hash function, and no directory entry slot in an idle state exists in the target object, the target object is split based on the linear hash function to create an idle directory entry slot required to be inserted in the target object. The application solves the problem of poor expansion convenience of the local file system in the cloud storage environment.

A computing system includes a first and second processing nodes each including one or more processors and a cache subsystem, and a probe filter directory having a directory entry for tracking cached data from a region of the memory, and a probe filter controller configured to automatically evict the first processing node from the directory entry in order to track the second processing node in the directory entry in response to the second processing node accessing the cached data, wherein the directory entry tracks only one processing node at a time. Various other methods and systems are also disclosed.

This application discloses a method and apparatus for isolating Android cloud mobile phone devices based on process namespaces. The method includes: adding a home namespace field to device objects in the Linux kernel, and controlling the visibility scope of the device objects at multiple levels based on the value of the home namespace field; responding to a system directory traversal request, outputting matching directory entries based on the matching result of the process namespace of the current process and the home namespace field of the device object; responding to a system file access request, executing a matching access request based on the matching result of the process namespace of the current process and the home namespace field of the device object to which the system file belongs; and responding to a device event sending request, sending the device event to the corresponding process namespace based on the home namespace field of the device object. Through the above methods, this application can achieve fine-grained device isolation and dedicated namespace management.

A method for reconfiguring a plurality of icons on a graphical user interface to optimize memory usage and data transmission efficiency, wherein each of the plurality of icons is associated with an entity, the method comprising: receiving a data set for a plurality of first entities; determining a weighted average of the historical data associated with the first entity; determining a vesting class based on the determined weighted average; generating a directory entry for each first entity; storing, in each directory entry, the first entity identifier, the electronic transfer identifier, the vesting date, and the determined vesting class; receiving a transfer authorization; determining a transfer permission based on the vesting class and the vesting date; receiving a user selection to reorganize the plurality of icons; sorting the plurality of first entities into a plurality of lists; and automatically reconfiguring the plurality of icons on the graphical user interface.

The embodiment of the invention provides a cache consistency control method, a consistency directory and a processor chip, and the method comprises the steps: responding to an access request of a first core for a target cache line for the first time, and distributing a first directory entry in the consistency directory; the first directory entry is used for recording an address tag of the target cache line and a first sharer; the first sharer comprises the first core; in response to an access request of a second core to the target cache line, distributing a second directory entry in the consistency directory; the second directory entry is used for recording a target path pointer and a second sharer; the target path pointer points to the first directory entry; the second sharer comprises the second core; the number of the second cores is greater than or equal to 1. According to the embodiment of the invention, the cache line copy position under the many-core condition can be accurately represented while a relatively low width of a single directory entry is kept, so that the hardware overhead can be saved, and the system performance can be improved.

The application discloses a file storage method and device, and the method comprises the following steps: acquiring the file quantity of a to-be-stored file and a directory layering rule, the directory layering rule comprising the upper limit of the directory item quantity of each level directory and the upper limit of the file quantity of a bottom directory item; calculating a target layer number, the upper limit of the file storage quantity of a full directory structure with the layer number being the target layer number and meeting the directory layering rule, and being greater than the upper limit of the file storage quantity of a full directory structure with the layer number being the target layer number minus one and meeting the directory layering rule; creating a target directory structure with the layer number being the target layer number and meeting the directory layering rule, storing the to-be-stored file under the bottom directory item of the target directory structure, and associating and storing the unique identification of each to-be-stored file with the storage path. The application provides a file storage scheme based on a multi-layer directory structure, and improves the access efficiency of the stored file.

This invention discloses a semantic tracing and lazy reclamation method for orphan files in a distributed file system, belonging to the field of distributed file system technology. This method persists directory entry change operations through full-link logging and establishes an independent operation log index for each inode. It monitors changes in the inode hard link count in real time, marks files to be classified as orphan files when the hard link count reaches zero, and triggers the semantic tracing process. It traces back the file's entire lifecycle relationships to complete the classification, matches the corresponding hierarchical reclamation strategy based on the classification results, and generates a read-only snapshot before releasing space when the reclamation trigger conditions are met. This method can accurately distinguish different types of orphan files, reduce resource consumption during the reclamation process, avoid accidental deletion of business data, balance storage space reclamation efficiency and data security, and improve the operational stability of the distributed file system.

The invention relates to the technical field of computers, and discloses a code management method and device and electronic device.The code management method comprises the steps that a first configuration file is generated based on a universal warehouse; creating a customized project, and adding a general warehouse in a catalog of the customized project, so as to take the general warehouse as a sub-warehouse of the customized project; generating a second configuration file corresponding to the customized project based on the first configuration file, and storing the second configuration file to a first directory entry in a directory of the customized project; executing a coverage operation, and covering the directory of the general project with the first directory entry; and compiling and packaging files in the catalog of the general project in the general warehouse to obtain an installation package corresponding to the customized project. According to the method and the device, the customized project can be managed in a mode of taking the universal warehouse as the sub-warehouse of the customized project, and a branch is not used for managing the customized project, so that a main branch and a customized branch do not need to be combined, and the code management efficiency and maintainability are improved.

A method comprises: determining a container directory entry in a container virtual file system corresponding to a container, where the container virtual file system is configured to manage at least one file corresponding to the container, and has a container directory entry that reflects a hierarchical relationship between the at least one file; and tagging the container directory entry in the container virtual file system as a first control level, to make a distinction from a control level of a directory entry that is different from that in the container virtual file system and that is in a host virtual file system of a processing device, where the host virtual file system is configured to manage files in the processing device, and has a directory entry that reflects a hierarchical relationship between the files in the processing device.

The invention relates to the technical field of data processing, in particular to an intelligent management method and system applied to a shared laboratory, and the method comprises the steps: analyzing experiment project invitation information and schedule information of digital experiment equipment based on a preset experiment information knowledge base; determining a matching database of matching relations among the experiment project invitation information, the digital experiment equipment and the researchers; and determining target experimental equipment and researchers responsible for testing the directory entry according to the state information of the experimental equipment. By means of the method, the problems that in the traditional sharing cooperation process, arrangement of researchers and arrangement of laboratories consume a large amount of time, and vast high-quality human resources and laboratory resources on a sharing laboratory platform cannot be utilized are solved.

This invention relates to the field of distributed file system technology, and discloses a method, apparatus, computer device, and storage medium for selecting new source files. Upon receiving a deletion operation instruction, the invention determines the target file to be deleted based on the instruction. When the target file to be deleted is a source file, the first inode number of the source file is obtained from its directory entries. Based on the first inode number, the first metadata of the source file is obtained. Hard link data for at least one hard link file corresponding to the source file is obtained from the first metadata. Based on each hard link data, the directory entry corresponding to each hard link file is determined. Based on the target entry of each hard link file, it is determined whether there are any hard link files not currently used by the client. When at least one hard link file not currently used by the client exists, a new source file can be selected using different methods. This invention can avoid the problem of business processing failures caused by the inability to select a new source file.

The embodiment of the invention provides a directory entry processing method and device, a storage medium and a program product, and relates to the field of distribution. The method comprises the following steps: receiving an operation for creating a directory or newly adding a directory entry; the directory entry count is updated in response to the operation, the directory entry count is used for recording the total number of files and subdirectories in a target directory, and the target directory is a directory targeted by the operation; in a case where the value of the directory entry count satisfies a large directory condition, a continuous space including N blocks is allocated in the resource group, and a new directory entry generated based on the operation is stored in the continuous space, where N is greater than 1. According to the method provided by the invention, the continuity of metadata access is increased, and the traversal and statistical performance of the cluster file system during processing of massive file directories is improved.

The invention is suitable for the field of data processing, and discloses a bidirectional guessing method for FAT32 cluster numbers, terminal equipment and a storage medium. The bidirectional guessing method for the FAT32 cluster number comprises the following steps: obtaining a lookup table according to file items and directory items of which the cluster numbers are not deleted, and obtaining a target file item set according to the file items of which the cluster numbers are deleted; creating time ascending order traversal and creating time descending order traversal are conducted on the target file item set, in each traversal process, for each target file item in the target file item set, a guess cluster number of the target file item is determined, and the target file items are inserted into a lookup table according to the guess cluster number and the creating time order; and determining a target cluster number of each target file item in the target file item set according to each guess cluster number in the lookup table. According to the invention, the accuracy of cluster number guessing and the adaptability to a large number of file deletion scenes are improved.

An incremental backup agent performs backup operations that synchronize database on client side to a server database. In one embodiment, such backup operations are incremental backups, where the agent may identify differences between the current directory with the latest backed up version. The agent may issue a direct RPC using SMB protocols or NFS protocols to fetch all entries of directories with metadata in a single RPC call, instead of issuing one call to fetch metadata for each directory entry. The agent may identify changes with efficiency by performing checksum changes in a DFS manner. Starting from a root directory, the agent may generate a checksum for each directory and compare the checksums on the client side with the retrieved fingerprints, and if the backup agent identifies that the fingerprints match, the backup agent may then go to a deeper level and compare the fingerprints for child directories.

Embodiments of the present application provide a data processing method, system, device and medium. The method comprises: in response to a capacity expansion request, determining a first data group stored in a distributed system to be expanded and a corresponding first directory file; splitting the first directory file to generate at least one first group directory item; wherein each first group directory item corresponds to target data of a logical group in the first data group; and writing the target data corresponding to the first group directory item to a second data group after expansion according to a preset capacity expansion rule. When expanding the capacity, the logical group capacity is expanded by using the newly created directory item, and the corresponding computing node is expanded for the first group directory item corresponding to each logical group, without migrating the target data in the first data group, which can improve the data processing capability of the distributed system and effectively improve the capacity expansion efficiency. The distributed system service does not need to be interrupted, and the capacity is expanded step by step, effectively improving the capacity expansion efficiency.

The invention discloses a dynamic pre-reading method for massive small directories in portable flash memory equipment, and belongs to the technical field of storage management of computer operating systems. Aiming at the problems of excessive invalid I / O (Input / Output) and overlong traversal time consumption caused by scattered storage of directory entries and preread aggressive of the portable flash memory equipment in a scene of traversing massive small directories, the invention provides a dynamic preread method, and by maintaining a preread prompt structure in a memory, when a directory entry read request is processed, the read request of the directory entries is processed, and the read request of the directory entries is read. Judging whether the current access sector and the historical record meet a continuity condition or not; if the continuity is satisfied, dynamically increasing the size of the pre-reading window to reward the sequential access; and if the access is not satisfied or the access is the first time, dynamically reducing the pre-reading window. According to the method, on the premise of not changing the disk layout of the file system, by optimizing the pre-reading strategy in the memory, invalid I / O operation is reduced, the traversal efficiency of massive small directories is improved by several times, and meanwhile, the sequential reading performance of large directories is considered.

The application relates to a metadata sharing method and system for a deletion marker in a union file system, and belongs to the technical field of computers. The method solves the problem of inode resource consumption and inode resource exhaustion risk in the prior art. The method comprises the following steps: initiating a file deletion operation, checking whether a deletion marker file template exists, returning a directory entry of the deletion marker file template if the deletion marker file template exists, creating a temporary deletion marker file, pointing an inode pointer field in a directory entry of the temporary deletion marker file to an inode pointer of the deletion marker file template, establishing a temporary hard link of the temporary deletion marker file to the deletion marker file template, making the temporary deletion marker file inherit the inode of the deletion marker file template, and atomically renaming the temporary deletion marker file to a file name to be deleted and storing the file name to an upper directory of the union file system. The application reduces inode consumption and avoids inode resource exhaustion risk.

This invention relates to the field of encrypted data protection technology, specifically a data protection method and system based on TPM encryption. The method includes: extracting features from file index nodes and directory entries; generating root node digests through hierarchical aggregation logic and measuring them in the platform configuration register; establishing a hardware anchoring topology based on the stored root key; parsing data streams to generate feature keywords; generating hardware-derived credentials using the TPM hardware unique key; constructing a balanced search tree and encapsulating it to generate a ciphertext mapping index; parsing I / O requests; performing logical integrity comparisons based on hardware anchoring on metadata operations; quantifying hardware evaluation values ​​for data content operations; performing synchronous hardware verification if a threshold is met; otherwise, locating physical blocks based on the ciphertext mapping index and asynchronously pushing the verification operation into a delay queue. This invention achieves strong binding between data and hardware and fast ciphertext addressing through software and hardware collaborative anchoring, effectively balancing data security protection and high-concurrency I / O throughput performance.

A computing system includes a first processing node having one or more processors and a cache subsystem, and a probe filter directory having entries for tracking a plurality of memory locations wherein data stored at the plurality of memory locations are cached in the cache subsystem, the probe filter directory including a first entry for tracking a first memory location of the plurality of memory locations, the first entry taking up a first number of bits, and a second entry for tracking a second memory location of the plurality of memory locations, the second entry taking up a second number of bits, wherein the first number is larger than the second number. Various other methods and systems are also disclosed.

The invention discloses a cache consistency maintenance method and device, equipment, a medium and a program product, and relates to the technical field of computers. After receiving a cache consistency write operation request of a first request node of which the initial state is an invalid state, a main node firstly returns a response message; initiating an invalid monitoring request carrying a target cache line data demand inquiry to other request nodes, receiving a monitoring response carrying own data demand information returned by each node, accurately sensing and recording the actual data demand of each node, and avoiding the problem of bus load increase; on the basis of the updated directory entry, the target cache line data is only distributed to the node with the data demand without waiting for the data demand node to re-initiate the data reading operation, so that the bus communication overhead can be effectively reduced, the process of the read-after-write operation of the multi-core system is simplified, the operation delay is reduced, the cache data consistency among the multiple nodes is ensured, and the data reading efficiency is improved. And the execution efficiency of the read-after-write operation in the shared memory system is obviously improved.

The invention relates to the technical field of data storage management, and provides a method and equipment for quickly deleting a directory and a file, and the method comprises the following steps: setting recovery configuration through a management interface of NAS (Network Attached Storage) equipment, and creating a recovery directory according to the recovery configuration; in response to the recovery moving command, recovering and moving the directory entry of the target directory or file into the recovery directory; and performing expiration judgment, structure cleaning and physical space recycling on the data content moved into the recycling directory according to the recycling configuration through asynchronous recycling operation. According to the method and the equipment for quickly deleting the directory and the file, the deletion operation efficiency sensed by the client can be improved, the operation universality and compatibility of the client can be completely kept, additional deployment is not needed, a convenient and low-cost data recovery mechanism is provided, the operation safety is enhanced, smooth unloading and efficient utilization of system resources are realized, and the user experience is improved. Performance impact is avoided, flexible and configurable management strategies are provided, diversified business requirements are met, and reliability and data consistency of the recovery process are ensured.

The invention provides a method, a device and equipment for reading directory entries in a file system and a storage medium, and the method comprises the steps: dynamically judging a directory scale and a cache state at a metadata service side, combining a client access mode, automatically deciding to carry out directory traversal by adopting a lexicographical order or a Hash order, and improving the directory traversal efficiency. A lexicographical order reading mode is preferentially adopted for oversized directory fragments which are not completely cached, efficient streaming scanning and breakpoint continuous reading are supported by means of natural orderliness of a database, otherwise, a hash order reading mode is adopted, and rapid and uniform traversal is achieved by means of an ordered structure (such as a red-black tree) in a memory. Therefore, the optimal balance among performance, compatibility and resource consumption is realized, the limitation that a single sorting mode is fixedly used in the readdir operation of a traditional file system is broken through, repeated access to a metadata database is reduced, and efficient and recoverable traversal of large-scale directories is realized.

The embodiment of the present application provides a directory access method, a consistent directory and a processor chip, and the method comprises the following steps: querying the consistent directory based on a request address; the consistent directory is divided into a plurality of virtual groups based on index bits, each virtual group comprises a first part and a second part; the first part is used for storing a plurality of directory entries, and different index functions are used in each path in the same virtual group; the second part is used for storing the positions of invalid directory entries in the same virtual group; based on the first part and the second part obtained by querying, a target operation to be executed is determined, and the target operation comprises one of the following: an update operation, a replacement operation, an insertion operation, a moving and insertion operation; the target operation is executed in a target virtual group, and the first part and / or the second part are updated. On the basis of reducing the number of reading SRAM and the control complexity, the embodiment of the present application can reduce the replacement operation of the directory entry, so that the access delay is reduced and the system performance is improved.

An effective stock keeping unit (SKU) management system encodes catalog data into an embedding per catalog item. An embedding space is created by encoding catalog item data into an embedding per catalog item. The embedding is created by generating an index, where a number of rows represents a number of catalog items and a number of columns represents a number of fields associated with each catalog item. The index is then denormalized using customer groups and transformed by compressing the number of columns, to create the embedding space. In some configuration, a machine learning model is trained using catalog data. In the embedding space, item similarity is encoded by clustering catalog SKUs into groups in the embedding space, by placing similarly related items close to each other in the embedding space. Catalog items are then searched for in the embedding, with the closest clusters searched for a particular catalog item.

The invention relates to a directory generation method and device. The method comprises the steps of obtaining a target document; extracting at least one document element in the target document, and storing the at least one document element in an element set; traversing the document elements in the element set, and generating directory entries according to the document elements; and constructing a directory by at least one directory entry. Therefore, the directory can be automatically generated, the manual operation process is reduced, and the directory generation efficiency is improved.