507results about How to "Improve reading and writing efficiency" patented technology

The invention relates to the technical field of network communications, in particular to a cluster communication system and method for improving message transfer performances. The system comprises a message release end, a message server cluster containing a plurality of message servers, a message subscribing end and a distributed coordination service cluster. The cluster communication system and method for improving message transfer performances have a global single point-free clustering expandable distributed design; if one or more nodes of the message release end or subscribing end have a fault, other nodes in the same group can continue to send or receive messages, and a processing flow of the messages is not interrupted; by adopting an index-based distributed file storage solution, the defects of the existing DB and file storage are effectively avoided, so that the read and write efficiency of the messages is higher; and by using a long poll PULL message transfer manner, the throughput is ensured while the message instantaneity is ensured.

A memory includes a nonvolatile memory cell array, and a memory control circuit which carries out writing of data to and reading of data from the memory cell array in access units of N bits where N is an integer equal to 2 or greater. The memory cell array includes a rewritable area in which both writing of data and reading of data are permissible, and a read-only area in which writing of data is prohibited and reading of data is permissible. The rewritable area is configured so that the N bits constituting one access unit contain both actual data and an error detection code. The read-only area is divided between an actual data area in which the N bits constituting one access unit contain actual data, and an error detection code area in which the N bits constituting one access unit contain error detection codes.

The invention discloses data writing and reading method and device in a distributed caching system. According to the distributed caching system, the indexing information of the data is stored in an internal memory, and the data information is stored in a hard disk; and when the writing and reading of the data are carried out, corresponding operation be performed on the hard disk through the indexing information stored in the internal memory. According to the method and device provided by the embodiment of the invention, the data is written and read in combination of the internal memory and the hard disk, and the internal memory is only used for storing indexing information; the reading and writing of the data are carried out in combination of the internal memory and the hard disk, so that the problem that all data is stored into the internal memory can be avoided, and the requirements on caching of a large number of data can be met; and furthermore, the data read-write efficiency can be improved by reading and writing the data in the combination of the internal memory and the hard disk, so the reliability of the system can be improved.

The invention relates to a multi-core processor and a multi-core processor set. The multi-core processor comprises at least one master core, at least one slave array, a first interconnecting structure and a slave core interconnecting structure, wherein the slave core array comprises a plurality of slave cores which are heterogeneous with the master core; the first interconnecting structure and the slave core interconnecting structure are used for communication between the master core and the slave core array; the slave core interconnecting structure is used for communication between any two slave cores in the slave core array; and as an optimized technical scheme, the master core is a universal processor core, the slave cores are processor cores microstructures and instruction sets of which are simplified and optimized, and the multi-core processor is integrated on the same chip. According to the multi-core processor and the multi-core processor set disclosed by the invention, communication efficiency among the processor cores is improved, calculation density of the whole multi-core processor is increased and balance between universal control function and high calculation density is realized.

The invention discloses a blockchain-based medical electronic medical record distributed management system and a construction method thereof. According to the blockchain-based medical electronic medical record distributed management system and the construction method thereof, the diagnosis processes of patients, such as medical records and prescriptions, are written into a blockchain in the form of smart contracts, so that a relevant hospital does not need to rely on a centralized server to manage the medical record information of the patients, and single-point failures common to the centralized server can be avoided; the data stored in the blockchain cannot be tempered and are traceable, and therefore, illegal tampering can be prevented; and a series of information such as the physical health, medical histories, and personal data of the patients, which concern personal privacy, can be effectively protected through an ABE encryption algorithm. With the system and method of the invention adopted, data loss caused by the single-point failures can be avoided, system maintenance cost can be decreased, and a condition that the diagnosis records of the patients are falsified during medical disputes can be avoided.

The invention discloses a flash memory storage system and a reading, writing and deleting method thereof. The flash memory storage system comprises a cache, a main control module, a cache metadata record sheet, a read mapping table and a write mapping table. The write mapping table is used for being stored in the cache and writing in the correspondence of a logical storage block and a physical storage block. The read mapping table is used for being stored in the cache and reading out the correspondence of the logical storage block and the physical storage block. The cache metadata record sheet is used for storing correspondences of metadata sheet addresses, the physical storage blocks and rear end flash memory addresses. By means of the flash memory storage system, the unnecessary write-in or read-out of a rear end flash memory can be reduced, the zero copy on a read-write data channel is achieved, the unnecessary intermediate copy process is omitted, and therefore the read-write efficiency is improved; the size of the read-write access of a front end application can be matched with the size of the rear end flash memory.

The invention discloses a method and device for data reading and writing on the basis of key-value buffer. The method includes: setting a primary buffer and secondary buffers buffering data in a key-value mode, setting that secondary buffers obtain synchronous updating data from the primary buffer according to a set synchronous cycle; receiving data requests sent by clients, outputting the data requests to the selected secondary buffer if the data requests are data reading requests, otherwise outputting the data requests to the primary buffer; receiving data request responses retuned from the primary buffer or data reading request responses returned from the primary buffers, and forwarding the data request responses and the data reading request responses to the corresponding clients; and monitoring state of the primary buffer and the secondary buffers, selecting the secondary buffers to send property change instructions after faults of the primary buffer are monitored, and switching the secondary buffers to the primary buffer according to the property change instructions. According to the method and device for the data reading and writing on the basis of the key-value buffer, the clients can use the buffers transparently, do not need to care about whether a single buffer breaks down, and can improve data reading and writing efficiency of the buffers.

The invention relates to the technical field of disk caching, in particularly to an object caching method based on a disk. The object caching method includes the steps that file storage space is divided to construct a file storage structure of secondary indexes, and the processes of adding objects to a disk cache and acquiring and deleting cached objects from the disk cache, a cache failure mechanism and the cache optimization arrangement process are achieved according to the file storage structure of the secondary indexes. Data of the objects are stored through chunks with the fixed sizes, the multiple small objects are merged and stored in one chunk, large objects are divided into a plurality of object blocks, the object blocks are stored in the multiple chunks respectively, the objects of any size and any type can be cached, and caching efficiency is higher.

The invention discloses an intelligent optical fiber wiring device and method and a management system. A machine frame electronic label is arranged on optical fiber wiring device equipment, a machine disc electronic label is arranged on each optical fiber wiring disc, and a connector electronic label is connected on each optical fiber movable connector. Meanwhile, an optical fiber wiring electronic label card reader is adopted, the optical fiber wiring electronic label card reader is provided with a plurality of electronic label card reading terminals which correspond to optical fiber wiring ports on the optical fiber wiring discs or optical fiber wiring ports on optical fiber wiring port sets one to one, the connector electronic labels on the current optical fiber wiring disc or the current port set and the electronic labels on the machine discs or the optical fiber wiring port sets can be read at a time. The scheme has high management efficiency and less labor misreading management loopholes, the wiring maintenance construction can be indicated and guided through the state of the optical fiber wiring ports, no electronic label read-write and management circuit needs to the added to the device, and a new intelligent ODN convenient to use can be constructed and intelligentized reconstruction of stock routine ODN equipment can be achieved.

The invention brings forward a data query method and system based on Key-Value data blocks. The method comprises following steps: selecting dimensions of data aggregation based on attributes of perception data, clustering perception data of the same attribute dimension in common, saving perception data to a same data block and utilizing selected data dimensions as attribute information corresponding to data blocks; adopting Key-Value data format to save and manage data in the data blocks; and saving and managing storage positions and corresponding attribute information by adopting a relational database. The data query method and system based on Key-Value data blocks has following beneficial effects: a deluge of perception data on the Internet of Things can be read and written in an efficient manner without using a great number of computers; and the data block is easy to expand according to business scale.

The system is composed of dynamic executive control module, case scheduler module, module of syntax analysis, file interface, interface for testing executive software, and interface for testing management tool. The system converts relevant testing case to script of commercial testing software. Basic operations are encapsulated as a process so as to form structured method for calling processes from case to be tested. Using dynamic implementation of testing case and technique of delayed loading, the invention broken up the procedure for testing case into to two steps: 'initialization step of case test' and 'executive step of case test'. Thus, the invention possesses advantages: independence for editing case, reuse of cases and possesses, lowered occupancy rate of system memory and raised efficiency for executing cases.

The invention relates to a method and a device for utilizing an external memory to realize convolutional interleaving and deinterleaving. The method of the invention comprises the following steps that: interleaving and deinterleaving data is cached in an on chip buffer; when the on chip buffer is written or read, the on chip buffer is communicated with a storage controller; the interleaving/deinterleaving data is written in an external memory through the storage controller or is read out from the external memory. The method and the device utilize the on chip buffer to cache the interleaving/deinterleaving data, thereby the read-write efficiency on the external memory is greatly improved and the demand on read-write clock frequency of the external memory is reduced; the external memory is operated by a special external interface through the storage controller, thereby complex read-write time sequence can be screened and multiplexing of the external memory with other functional modules is also convenient.

The invention provides a map data processing method and device. The method includes: acquiring information of roads and information of parcels in which the roads are located; according to the information of the roads and the information of the parcels, judging whether the roads belong to different parcels; acquiring first intersection points of the roads and boundary lines among the different parcels if the roads belong to the different parcels; calculating target straight-lines which pass through the first intersection points and are perpendicular to the roads; and using the target straight-lines to divide the roads. According to the scheme, the perpendicular lines are used to divide road attachment objects, which respectively belong to the different parcels, to acquire identification data which have independence and use end points as road lines and attachment object lines, coupling with other data in a map is reduced, a redundancy degree of map data is decreased, and reading/writingefficiency of the map data is improved; and the road lines and the attachment object lines obtained by splitting of the scheme have the same length, and appearing of phenomena of data errors is avoided.

The invention discloses a multi-path video data read-write method, which comprises the following steps of: acquiring video data from a plurality of cameras, and writing video frame data of the video data of all the cameras into a video file of a storage in a merged writing mode; establishing a data block index file and a camera recording index file for the video file, finding positions of all data blocks of a specified camera in the data block index file within search time through the camera recording index file, acquiring index records of all the data blocks of the specified camera within the search time from the data block index file, and acquiring all the data blocks of the specified camera within the search time from the video file; and merging according to starting time and ending time. Due to the adoption of the technical scheme, jump frequency of a magnetic disc head can be greatly reduced, and the whole read-write efficiency of a disc is improved.

The invention discloses a communication method of a symbiotic virtual machine based on a multi-core lockless ring buffer area. The communication method comprises the following implementing steps of applying for a buffer area with fixed size in a share memory in advance, equally dividing the buffer area into element data areas, designating one element data area to store description information of the buffer area and identification variables of the buffer area, and organizing the other element data areas to form a ring in logic, so as to form the multi-core lockless ring buffer area; when the symbiotic virtual machine requires communication, using a communication sender as a writer, writing the communication data into the symbiotic virtual machine, and only allowing one writer to execute writing operation at the same time; using a communication receiver as a reader, enabling the reader to read the communication data in the multi-core lockless ring buffer area, and enabling multiple readers to execute the reading operation in a concurrent way. The communication method has the advantages that the high-efficiency concurrent reading by the receivers is supported, the reading and writing concurrency of the buffer area is good, the communication efficiency of the symbiotic virtual machine is high, and the multi-core processing property is fully utilized.