159results about How to "Improve caching efficiency" patented technology

A system and method enables de-duplication in a storage system architecture comprising one or more volumes distributed across a plurality of nodes interconnected as a cluster. De-duplication is enabled through the use of file offset indexing in combination with data content redirection. File offset indexing is illustratively embodied as a Locate by offset function, while data content redirection is embodied as a novel Locate by content function. In response to input of, inter alia, a data container (file) offset, the Locate by offset function returns a data container (file) index that is used to determine a storage server that is responsible for a particular region of the file. The Locate by content function is then invoked to determine the storage server that actually stores the requested data on disk. Notably, the content function ensures that data is stored on a volume of a storage server based on the content of that data rather than based on its offset within a file. This aspect of the invention ensures that all blocks having identical data content are served by the same storage server so that it may implement de-duplication to conserve storage space on disk and increase cache efficiency of memory.

A terminal, method and system for providing a CS service, a SIP-based service, or a CSI service, are provided. According to an embodiment, the terminal includes a controller to receive a terminal capability version of at least one target terminal, to compare the received terminal capability version with a previously stored terminal capability version of the at least one target terminal, and to determine whether to request for terminal capability information of the at least one target terminal based on the comparison result, wherein the terminal capability version identifies a version of capabilities of the at least one target terminal.

A path calculating section obtains a path suitable for carrying out an automatic cache updating operation, a link prefetching operation, and a cache server cooperating operation, based on QoS path information that includes network path information and path load information obtained by a QoS path information obtaining section. An automatic cache updating section, a link prefetching control section, and a cache server cooperating section carry out respective ones of the automatic cache updating operation, the link prefetching operation, and the cache server cooperating operation, by utilizing the path obtained. For example, the path calculating section obtains a maximum remaining bandwidth path as the path.

This invention relates to a method (100) of operating a computing device to perform memoization. The method (100) includes determining whether or not a result of a function is stored in a cache and, if so, retrieving the result from the cache and, if not, calculating the result and storing it in the cache. The method (100) is characterised in that it includes transforming (104) by the computing device at least one selected from the group composed of the input parameters and the output parameters of the function, the transforming being based on an analysis of the function and its input arguments to establish whether or not there is a possible relationship among and between the input parameters and output parameters of the function, the relationship reflecting redundancy.

A method and system for storing instructions retrieved from memory in a memory cache to provide said instructions to a processor. First a new instruction is received from the memory. The system then determines whether the new instruction is a start of a basic block of instructions. If the new instruction is the start of a basic block of instructions, the system determines whether the basic block of instructions is stored in the memory cache responsive. If the basic block of instructions is not stored in the memory cache, the system retrieves the basic block of instructions for the new instruction from the memory. The system then stores the basic block of instructions in a buffer. The system then predicts a next basic block of instructions needed by the processor from the basic block of instructions. The system determines whether the next block of instructions is stored in the cache memory and retrieves the next basic block of instructions from the memory if the next block of instructions is not stored in memory.

The invention discloses a method and a device for reading data based on data cache. The method comprises the steps of: receiving read access request information (of a user) for obtaining data input, and extracting a generated key word; determining a data key value corresponding to a key word which is not subjected to cache generation in a cache databank, and initializing a mark value of data to be obtained; or determining a data key value corresponding to a key word which is subjected to cache generation in the cache databank, wherein the data included in the cached data key value is invalid, and setting the mark value of the data to be obtained as the mark value included in the obtained data key value; reading and checking a sub-bank of the databank so as to obtain data corresponding to the generated key word; obtaining time stamp information of the sub-bank of the databank, setting data key value information of key value pairs according to the set mark of the data to be obtained, the read time stamp information of the sub-bank of the databank and the data to be obtained, and updating the cache databank; and outputting the data obtained through checking. With the adoption of the method and the device, the cache efficiency of the data is improved, and the comprehensive property in data cache is optimized.

The present invention relates to a system, a server, a terminal and method for displaying cached webpages and to a computer-readable recoding medium on which the method is recorded. The system comprises a Web service server which stores at least one webpage; a caching server which collects links to webpages that match preset conditions in the webpage(s) for creating a caching page list that comprises at least one of the links to the collected webpages, and a terminal which refers to the link(s) to webpage(s) in the caching page list to cache the webpage(s), and simultaneously display the input link and the link to the cached webpage in response to a user call up of a specific webpage and wherein the terminal which receives the caching page list, displays the link(s) to webpage(s) in the caching page list so received, and provides a display such that webpages cached in links of the webpages are displayed are separate from non-cached webpages.

A cache control method is provided which allows a cache state in a proxy server and a client use state to be synchronized and can improve a cache-efficiency regardless of time zones. A cache control method of a proxy server for relaying data between one or more clients connected to one communication network and a data server connected to the other communication network with a white list, includes the steps of determining whether or not a URL requested by a user of the client is registered in a white list, and processing data at the URL to be cached if the URL is registered in the white list.

System and method of differential cache control. Different parts of a representation are controlled by different cache expiration times. A differential control scheme may adopt a hierarchical control structure in which a subordinate level control policy can override its superordinate level control policies. Different parts of the representation can be updated to a cache separately. Differential cache control can be implemented by programming a cache control directive in HTTP/1.1. Respective cache expiration time and their control scopes can be specified in a response header and/or response document provided by a server.

The invention discloses a video caching method and device and a readable storage medium, and belongs to the technical field of data processing. The video caching method comprises the steps of when a to-be-cached target video stream is obtained, obtaining a target idle memory from an idle memory buffer queue to buffer a target video stream according to separation of an I frame and a non-I frame. The memory in the idle memory buffer queue is the idle memory obtained after the cached video data is released, memory multiplexing can be realized by buffering the target video stream through the idlememory in the idle memory buffer queue; therefore, frequent memory operations are reduced, the memory fragmentation degree is reduced, the video caching efficiency is improved, separated storage of the I frame and the B frame and the P frame is realized for the target video stream, subsequent positioning of the data frame is facilitated, and the positioning efficiency of the data frame is improved.

The device comprises a module for analyzing additional message about data, a selector for inputted additional message, an analyzing module for inputted data, a selector for write cache, a module for processing write jump condition, a ping-pong cache module, a selector for outputted additional message and a selector for read cache. The invention can implement caching for different type data in data flow by only using one ping-pong cache.

The invention discloses a multisource time series data compression storage method. The multisource time series data compression storage method comprises the following steps of grouping deployment objects; dividing internal groups of deployment object groups; distributing a memory file which is used for caching for every internal group in the memory; performing first level lossy compression when time series data of a certain measuring point is received, finding the memory file which is corresponding to the measuring point according to the deployment object group and the internal group to which the measuring point belongs and caching the compressed data into the memory file; mapping the memory files to a hard disk and performing second level lossy compression when the internal files are fully filled or achieve the preset time limits and storing the compressed data blocks into a relational database. The multisource time series data compression storage method has the advantages of enabling the corresponding memory files to be found rapidly when data is cached, rapidly positioning storage positions and improving the caching efficiency; improving the compression efficiency and effectively saving hard drive capacity due to the partitioning compression mode; improving the data reading speed due to the relational database.

The invention discloses an anonymous area generation method and a location privacy protection method. The anonymous area generation method is used for generating an anonymous area based on a spatial K anonymous method; a multi-level access protection mechanism is adopted in the location privacy protection method; the location privacy protection method performs cache normalization; when a target user sends a LBS request, POI data is obtained according to the priority levels of a target user local, a neighbour user in a network and a LBS server; furthermore, when the POI data is obtained from the LBS server, generation of the anonymous area is carried out by adopting the anonymous area generation method; the LBS request is sent to the LBS server based on the anonymous area as the anonymous location of the user; and furthermore, the POI data returned by the LBS server is output. By means of the anonymous area generation method and the location privacy protection method disclosed by the invention, the location privacy of users is protected in combination with a cache method and the spatial K anonymous method; therefore, inquiry requests sent by users can be reduced to the most extent; furthermore, the privacy protection level of the users can be improved; and thus, the problems that the burden of the server and a channel is too heavy and the information repetition utilization rate is low can be well solved.

The invention relates to a mobile edge caching method based on regional user interest matching, and belongs to the technical field of caching. The method comprises the following steps: S1, establishing a regional user preference model; S2, establishing a joint cache optimization strategy; S3, establishing a cache system model; S4, designing a cache algorithm. When a cache mechanism of the invention is used, the video caching gain can be maximized under the condition that the diversity of cached videos is met, compared with a current caching mechanism, the video caching benefit and QoE of a user can be effectively improved, and an effective solution is provided for caching and online watching of large-scale ultra-high-definition videos in a future 5G scene.

An embodiment of the invention discloses a relational data cache and inquiry method and device. The cache method includes the steps: receiving relational data to be cached and then caching each of associated sub-data into a corresponding column according to the corresponding relation between each of the associated sub-data and each column in a column cluster; updating bitmap identifiers of corresponding lines in a bitmap index according to the condition whether relational data are cached in each column or not. As the relational data are cached based on the corresponding relation table of the bitmap index and each column and divided into a plurality of associated sub-data to be respectively cached, the cache efficiency of the relational data is improved. Moreover, the method is applied to a memory of an electronic device, and the use ratio of the memory is increased.

The invention discloses a cache management unit and a cache management method. The cache management unit comprises a state calculation circuit for calculating effective data in a cache and obtaining a cache state according to calculation of effective data values; a state indication circuit for outputting the cache state to a producer and/or a consumer; a writing synchronization circuit for sending a writing synchronization signal to perform writing synchronization operation on the state calculation circuit when the producer really writings primary data in the cache at each time; a reading synchronization circuit for sending a reading synchronization signal to perform reading synchronization operation on the state calculation circuit when the customer receives the primary data in the cache at each time; a writing presynchronization circuit for sending a writing presynchronization signal to perform writing presynchronization operation on the state calculation circuit when the producer sends out a write command at each time; and a reading presynchronization circuit for sending a reading presynchronization signal to perform reading presynchronization operation on the state calculation circuit when the customer sends out a read command at each time. The cache management unit and the cache management method help enhance the overall cache efficiency.

The invention discloses an online multimedia information mining oriented data caching method and system. The method comprises the following steps of: distributing a cache pool for the online multimedia information in an internal memory, wherein the cache pool is composed of pre-set receiving buffers with different lengths; applying for corresponding buffers to store multimedia data according to length attribute information of the captured online multimedia information; establishing a received data information chain table for the captured online multimedia information, and recording the received multimedia information in a form of orderly chain table; and inquiring the received data information chain table, and storing the multimedia data in the buffers.