50results about How to "Reduce reading and writing" patented technology

An embodiment of the present invention provides a message processing method and device, and an electronic device. A plurality of timing queues are provided, and the plurality of timing queues correspond to a plurality of preset delay levels respectively. The message processing method includes: receiving a timing message, and writing the timing message into a data file; storing index information ofthe timing message in the corresponding timing queue according to the delay level of the timing message; separately monitoring the plurality of timing queues to determine whether there is a timing message that satisfies a preset delivery condition; delivering the index information of the timing message that satisfies the preset delivery condition to a target queue if there is a timing message that satisfies the preset delivery condition so as to allow the user to acquire the timing message that satisfies the preset delivery condition through the index information. The invention improves the timing message stacking capability, and when the number of timing messages is large, the timing message delay errors can be reduced, and the timing messages are guaranteed to be delivered on time to agreater extent.

The method relates to a method for storing configuration parameters in a NOR FLASH based on a Hash algorithm. The method comprises the following steps: configuration parameter items are sequentially written in a blank area of a configuration parameters partition without adding tags in a format 'name=value', effective configuration parameters are obtained by a positional relation of the blank area in FLASH after a Hash table is established for the configuration parameters, the Hash table is used for representing mapping between effective configuration information of the partition in a configuration parameters space and memory omission, when certain parameter needs modification, similarly, the Hash algorithm is firstly carried out, then corresponding nodes in the Hash table are compared, and then a decision is made on whether the configuration parameter needs modification and whether the configuration parameter need to be written in the FLASH. The method can effectively lower the reading and writing of the FLASH, and especially the erasing times of the FLASH, and improves the inquiry speed and the modification speed of the configuration parameters.

A method for storing and managing mass data of intelligent card includes setting up a databank with functions of basic storage, query, comparison and sequencing on said intelligent card, forming basic structure of said databank by two sets of chain lists, using each node in master chain list to store basic information of each record and initial position of sub-chain list, and using sub-chain list to store different attributes of the same record in structure of identification-length-value.

The invention discloses a computer and a file processing method used in the same, wherein the computer comprises a first hard disk and a second hard disk, both of which are mutually independent based on physics; the computer also comprises a type judging unit and a memory executing unit; if a new file is created, the type judging unit is used for judging whether the file style of the new file belongs to the preset file style under a preset file directory or not and generating a first judging result; and the memory executing unit is used for saving the new file to the first hard disk under the condition that the first judging result is yes and saving the new file to the second hard disk under the condition that the first judging result is no. The computer saves all files which are easy to produce fragments to the new hard disk of a system hard disk different from a computer system, thereby reducing the fragment problem of the system hard disk and improving the system performance.

The invention belongs to the field of information security, relating to a large file encryption method. The method considers the phenomenon that a large file has huge data and is not suitable for full encryption, a large number of data will choose not to be encrypted, and in order to reduce the read and write of the data, especially the write, the method disclosed by the invention adopts the following steps: storing an original plaintext, covering part of the plaintext that is encrypted, and separately storing an encrypted ciphertext. As different encryption methods have different advantages and disadvantages, fully homomorphic encryption also cannot solve all delegated calculations, and a high cost of encryption is needed, an encryption mode with a misleading function is required for some data, and only a general symmetric encryption mode is required for other data, thereby, the appropriate encryption methods are segmentally selected as required, only part of the data needs to be encrypted according to rules or selections; and meanwhile, an optimum scheme for reducing key management and guaranteeing security is proposed, and thus the encryption and decryption of the files can be achieved by only using fewer keys.

A digital signal processor structure by performing length-scalable Fast Fourier Transformation (FFT) discloses a single processor element (single PE), and a simple and effective address generator are used to achieve length-scalable, high performance, and low power consumption in split-radix-2/4 FFT or IFFT module. In order to meet different communication standards, the digital signal processor structure has run-time configuration to perform for different length requirements. Moreover, its execution time can fit the standards of Fast Fourier Transformation (FFT) or Inverse Fast Fourier Transformation (IFFT).

The invention discloses a vector tile real-time slicing and updating method based on multi-layer cache, which comprises the following steps of: retrieving in a spatial database according to an input map range, judging whether data updating is involved or not, and returning a complete geometrical shape of updated data to a minimum bounding rectangle to generate a corresponding vector tile; establishing a retrieval identifier according to the request range for generating the vector tiles, retrieving the memory database through the retrieval identifier, returning a retrieval result if the retrieval identifier exists, and retrieving the non-relational database if the retrieval identifier does not exist; if the search result exists in the non-relational database, loading the search result intoa cache and returning the search result; and if not, calling a vector tile slicing tool to generate vector tiles in real time, storing the generated vector tiles into a memory database or a non-relational database, establishing a file index, and returning the vector tiles. The publishing efficiency of the vector tile data is effectively improved, and the requirements of a user for instant generation and updating of mass data are met.

The invention provides a method for writing caches of storage servers in hybrid modes. The method has the advantages that the hybrid modes of a write-back process and a write-through process are adopted, and the write-back process is adopted when sufficient spaces are available in the caches of disks, so that the read-write performance can be improved; the write-through process is adopted when the spaces available in the caches of the disk are reduced and reach a certain threshold value, so that read-write and refresh frequencies of the caches of the disks can be reduced, and the read-write speeds of the caches of the disks can be increased to a certain degree.

The invention discloses a scheduling method for relieving memory pressure in distributed data processing systems. The scheduling method comprises the following steps of: analyzing a memory using law according to characteristics of an operation carried out on a key value pair by a user programming interface, and establishing a memory using model of the user programming interface in a data processing system; speculating memory using models of tasks according to a sequence of calling the programming interface by the tasks; distinguishing different models by utilizing a memory occupation growth rate; and estimating the influence, on memory pressure, of each task according to the memory using model and processing data size of the currently operated task, and hanging up the tasks with high influences until the tasks with low influences are completely executed or the memory pressure is relieved. According to the method, the influences, on the memory pressure, of all the tasks during the operation are monitored and analyzed in rea time in the data processing systems, so that the expandability of service systems is improved.

The embodiment of the invention discloses a service processing method and device for a high-concurrency environment, relates to the technical field of the Internet, and can improve the stability of asystem. The method comprises the following steps: after a service system initiates a service activity, reading a customer group data file and extracting member information; receiving the member information through kafka, and determining a channel corresponding to each member by using the member information; according to the channel corresponding to each member, sending a notification message to the channel corresponding to each member, and calling a service interface of the channel of each member; sending virtual article information corresponding to the business activity to a downstream platform through the called service interface; and publishing a subscription message through kafka to notify an upstream platform. The method is suitable for a distributed system in a high-concurrency environment.

The invention provides a magnetic random access memory with an error correction and compression circuit. The magnetic random access memory comprises a memory cell array, an error detection and correction circuit, a compression and decompression circuit, a control circuit, a status bit cache and a data cache, the reading operation steps of the chip are as follows: obtaining first compressed data inthe memory cell array, processing the first compressed data through the error detection and correction circuit, decompressing the processed first compressed data through the compression and decompression circuit to obtain first data, and outputting the first data; and the chip performs the following writing operation steps: compressing second data to be written through the compression and decompression circuit to obtain second compressed data, processing the second compressed data through the error detection and correction circuit, and writing the processed second compressed data into the memory cell array.

The embodiment of the invention provides a data warehouse system based on an urban brain. The data warehouse system based on the urban brain comprises a distributed file system based on Hadoop, a dataETL, a five-layer data warehouse, online analysis processing, a distributed computing engine based on Hadoop and metadata. According to the method, a Hadoop-based distributed file system and a computing engine are adopted to construct a distributed data warehouse system, and storage, unified processing and analysis are performed on multivariate heterogeneous data; the data warehouse is reasonablylayered, the reuse rate of the data is improved, it is basically guaranteed that the data of the layer in the data warehouse depends on the data of the upper layer to be obtained, and repeated workloads caused by new requirements every time are avoided.

The invention discloses a data storage method and a device. The method comprises the following steps of: obtaining an initial storage address of a previous data block of the current data block to be written; subtracting the size of the current data block to be written from the initial storage address and obtaining an intermediate result; if the intermediate result is less than 0, mapping the intermediate result into an effective address of a memory and taking the mapped result as the initial storage address of the current data block to be written; if the intermediate result is more than or equal to 0, directly taking the intermediate result as the initial storage address of the current data block to be written; and starting to write in the current data block to be written from a storage unit corresponding to the initial storage address of the current data block to be written. The method provided by the embodiment of the invention can reduce read-write times to the memory, thus reducing the power consumption when writing data in the memory.

The invention discloses a method for replacing an NAND memorizer by using a virtual machine mirror image in an embedded system, which comprises steps of starting a virtual machine supervisor, initializing memory card equipment and file systems of the equipment of an embedded virtual machine, executing control console procedures of the embedded virtual machine, waiting users for inputting loading orders of the virtual machine, loading the virtual machine mirror image according to the loading orders of the virtual machine, obtaining storage address of the virtual machine mirror image on the memory card equipment according to offset address in the head of the virtual machine mirror image, starting inner core of the virtual machine, obtaining orders for reading and writing the NAND memorizer in NAND memorizer drive of the inner core of the virtual machine so as to obtain operation types and operation address of the orders, enabling the operation types of the orders to be mapped to be the operation types of a memory card, accumulating the storage address of the virtual machine mirror image on the memory card equipment and the operation address of the orders so as to obtain the operation address of the orders in the memory card equipment, and generating operation orders of the memory card according to the operation types of the memory card and the operation address of the orders in the memory card equipment.

The invention relates to the technical field of vector data editing of maps. The invention discloses a standardized basic geographic data making method and system. The normalized basic geographic datamaking system comprises a source data acquisition module, a basic geographic data preprocessing module, a spatial information digitization module, a topology check and data rectification module, a data quality verification module, a data display module and a data storage module. The basic geographic data made by the method can provide rich space analysis support for mobile signaling data analysis, avoids cutting of space entities and ambiguity of semantics, and can be used for improving base station cell positioning reliability, semantic enhancement analysis and the like. According to the method, standardized basic geographic data making requirements are provided, multi-source data can be integrated, so that a consistent API can be used during mobile signaling data analysis, and the problems of reading, writing and adaptation of data from different sources are reduced.

The invention discloses a file uploading method and device and computer equipment, and the method comprises the steps: determining the slice capacity through combining with the capacity of a target uploaded file; segmenting the target uploaded file into a plurality of slice files according to the slice capacity; acquiring IO load occupancy of the plurality of cache storage spaces, and determininga target cache storage space according to the IO load occupancy; uploading the plurality of slice files to a target cache storage space to generate a plurality of uploaded slice files; splicing a plurality of uploaded slice files in the target cache storage space to generate a merged file; and uploading the merged file to a main storage space. Uploading speed and reliability of the target uploadedfile are improved, the possibility of overtime data transmission is reduced, the slice files are stored in the target cache storage space during uploading, and is written into the main storage spaceafter being merged, so that unnecessary reading and writing of the main storage space are reduced.

The invention discloses a method for quickly realizing file identification under a host white list mechanism. The method comprises the following steps of step 1 a first fragmentation algorithm; step 2a fragmentation algorithm 2 characterized by fragmenting according to a fixed size, combining a plurality of adjacent fragmentations, calculating a HASH value, and recording the HASH value in a database; step 3 a fragmentation algorithm III characterized byperforming fragmentation according to the Section of the PE, combining the attribute field of the Section with the Section data body part, calculating a HASH value, and recording and verifying the HASH value; and step 4 carrying out the fragmentation according to the Section of the PE, and combining the attribute field of the Section with the Section data body part. The beneficial effects of the invention are as follows the problem that the process loading or running speed becomes slow due to the white list software is solved, the system jamming problem caused by existing white list software is solved, the memory paging control over executable files is achieved through kernel programming of Windows, and the HASH value of paging is quickly verified during paging exchange.

The invention discloses a shared memory-based GPS data information query method and system, and belongs to the technical field of shared memory computers. The method comprises the following steps of: in response to an information query request sent by terminal equipment, obtaining an equipment identifier and target position information from the information query request; searching a memory area corresponding to the equipment identifier from a shared memory according to the equipment identifier; extracting GPS data information corresponding to the target position information from the memory area; and sending the extracted GPS data information to the terminal equipment, so as to reduce the read-write for persistent database clusters and improve the service performance.

The invention relates to a method and a system for effectively prolonging the service life of NAND startup. The method comprises the steps that S1, starting a chip, and completing initialization; s2,reading address information of the firmware from the NAND particle fixed address X0; s3, judging whether reading is successful or not; if yes, entering S5; if not, entering S4; s4, selecting the nextfixed address Xn of the fixed address X0 for reading, and returning to the step S3; s5, reading the bootstrap program from the read address, and verifying the bootstrap program; s6, judging whether the verification is successful or not; if yes, entering S7; if not, returning to S4; s7, running firmware. Through two-stage mapping, the read fixed address is subjected to multiple backups, and firmware is separated from the storage address, so that repeated erasing and writing of the same address by NAND particles are reduced, the service life of chip NAND starting is prolonged, and the service time of the solid state disk is prolonged.

The invention discloses a TCP protocol-based license authentication method of device function permission and an authentication platform. When a network device actively makes requests to the authentication platform during starting, the method comprises following steps of: S1, receiving a service function permission request report which is made by the network device and transmitted through the network, and carrying out decoding, wherein the service function permission request report is in a TLV format; S2, distributing the decoded service function permission request report to different authentication request processors for processing through a load balance processor; S3, acquiring a device sn code corresponding to the decoded service function permission request report from a KV database through the authentication request processors, comparing service deadlines and service module enabling identifiers, and judging whether the network device making the authenticating request is legal or not. According to the invention, by storing authentication information into the KV database, data transmission efficiency in a communication process is improved; and the TLV format is used as the basic storage format, so a delay problem in a real-time authentication process can be reduced.

The invention relates to a low-power-consumption mode wakeup recovery method and device for a solid state disk, computer equipment and a storage medium. The method comprises the steps: when a commandissued by a host is obtained, enabling the solid state disk to quit a low-power-consumption mode; judging whether the command issued by the host needs data transmission or not, and if not, directly executing the command issued by the host and replying a completion state to the host; if so, awakening other cores to enter a normal working state, and recovering the state and the working parameters before entering the low-power-consumption mode at the same time; detecting the type of the command and the hardware modules needing to be matched, awakening the hardware modules needing to be matched with the command, and configuring hardware working information; transmitting data issued by the host, and replying a command completion state to the host after the data issued by the host is completelytransmitted; and enabling the solid state disk to enter the low-power-consumption mode again. The performance of the solid state disk is improved, the power consumption is reduced, and the effect of improving the stability of the solid state disk is achieved.