9results about How to "Reduce read and write operations" patented technology

The invention relates to the technical field of hydrology and water resource science, in particular to a rapid extraction method and device for a longest convergence path of a small watershed. Through a unified interface, the generation of intermediate data is remarkably reduced, so that the operation complexity is greatly reduced when a user executes a complex hydrological analysis task, and the possibility of data management errors and misoperation is reduced. And through the integrated processing flow, the operation steps required by the user are simplified. Flow direction analysis, flow calculation, river network extraction and longest confluence path search are integrated in continuous steps, frequent tool switching is not needed, and convenience of user operation is remarkably improved. According to the method, a data processing algorithm is optimized, particularly, a depth-first search (DFS) algorithm is adopted in the aspect of searching the longest runoff path, and the processing speed is increased by organically combining a graph theory algorithm with a GIS technology.

The invention relates to the technical field of solid state disks, and discloses a solid state disk global wear leveling system, which comprises an SSD data acquisition module, an SSD data analysis module, an SSD evaluation module and an SSD leveling module, and is characterized in that the SSD data acquisition module is used for being connected with a built-in tool of an operating system to acquire temperature data, state data and performance data of an SSD; the SSD data analysis module calculates an SSD temperature index, an SSD state index and an SSD performance index according to the collected data, then the values are evaluated through the SSD evaluation module, whether wear leveling needs to be carried out or not is judged, signals are sent to the SSD leveling module under the condition that wear leveling needs to be carried out, multi-aspect comprehensive analysis is carried out, potential problems are found in time, and the service life of the SSD is prolonged. The state of the SSD is known more comprehensively, the misjudgment risk caused by only depending on a single index is reduced, system faults caused by performance reduction or hardware problems are avoided, unnecessary read-write operation is reduced, abrasion balance is optimized, and the overall service life of the SSD is prolonged.

The invention provides a transaction message processing method, electronic equipment, a storage medium and a program product, and relates to the technical field of data processing. The method comprises the following steps: receiving a message to be processed; the to-be-processed message comprises interface calling information of the target transaction channel; determining a script file corresponding to the interface calling information of the target transaction channel; and converting the to-be-processed message into a message suitable for being processed by the target transaction channel by executing the script file to obtain a converted message. According to the application, logic processing of different transaction channels is isolated, so that the transaction channels do not influence each other, and the stability of transaction message processing is improved.

The present invention relates to the field of graphics rendering technology, and in particular to a vertex shading method based on a vertex buffer. It includes the following steps: S1. After the vertex data preparation stage, the hardware module obtains the vertex data that needs to be shaded and the vertex index corresponding to the vertex data; S2. The vertex index that needs to be shaded is sent to the vertex shading module and the subsequent processing module; S3. The subsequent processing module queries the vertex buffer area according to the vertex index. If the vertex in the required state is queried, the subsequent processing module directly obtains the vertex and ends the process; S4. The vertex shading module queries the vertices in the vertex buffer area according to the received vertex index and renders the unshaded vertices; S5. The subsequent processing module queries the vertices in the vertex buffer area according to the vertex index and obtains the vertices after rendering to perform the subsequent processing process. Adding a storage area for vertex buffering solves the problem of repeated rendering of vertices and poor performance.

This invention provides a data storage device and a data reading method. The data storage device is coupled to a host computer, which includes a host memory buffer. The data storage device includes a controller, non-volatile memory, and a buffer. The data reading method includes: downloading firmware data to be updated from the data storage device via the host computer; determining that the host memory buffer contains the firmware data to be updated; reading the firmware data to be updated from the host memory buffer into the buffer; determining that the firmware data to be updated in the buffer is correct through an error correction mechanism; and updating the firmware data of the data storage device. This reduces read / write operations on the data storage device and improves stability, while also increasing data transmission speed without affecting read / write operations.

The invention discloses an instant messaging system address book management method, which comprises the following steps of: acquiring an organization personnel change result, writing the organization personnel change result into a database, and recording updating time of each piece of organization information and each piece of user information; writing the organizational personnel change result into a cache service unit, and recording the update time of each organizational mechanism and each piece of user information in the cache service unit; the organization personnel change result is sent to the message service unit; and receiving a local organization personnel change timestamp sent by the client, comparing the local organization personnel change timestamp with the organization personnel change timestamp of the cache service unit, and if the local organization personnel change timestamp is inconsistent with the organization personnel change timestamp of the cache service unit, sending an organization personnel change result after the local organization personnel change timestamp to the client. The invention also discloses an instant messaging system address book management device, a storage medium and a computer program product. Read-write operation of the database is reduced, system response efficiency is improved, and server data processing efficiency is improved.

A method and device for reducing read latency of lightweight LDPC hard decoding for TLC-type NAND Flash, relating to the field of solid-state storage. In order to solve the technical problem in the prior art that when the original bit error rate of data in the flash memory is high, LDPC code decoding requires not only more perception levels but also a large number of decoding iterations, thereby causing serious read latency problems, the technical solution provided by the present invention is: a method for reducing read latency, the method comprising: collecting block numbers in a storage device and determining feature word line numbers; reading LSB page data of feature word lines and recording the number of iterations; calculating the voltage offset of at least one overlapping area according to the number of iterations; adjusting the read reference voltage position according to the voltage offset, and reading all data. A method for reducing read latency of hard decoding implemented according to the read latency reduction method. Suitable for application in lightweight LDPC hard decoding of TLC-type NAND Flash.

The invention discloses a database parallel equivalent connection method based on a column storage format. The database parallel equivalent connection method comprises the steps that a data table with the minimum data size is selected from a plurality of involved data tables to serve as a basic table; hash is carried out on the basic table according to a Hash function, data in the basic table is divided into a plurality of fragments according to a Hash result, each fragment is numbered and allocated to a plurality of sub-tasks, and a sub-Hash Table with a connection field value list as Key and a row position information list as Value is constructed in a concurrent mode; performing the same operation on the to-be-connected data table, and concurrently performing Hash detection; and according to a position information sequence pair obtained by Hash detection, splicing connection field values of corresponding position information of the basic table and the data table to be connected to obtain a spliced result, and taking a set of all the spliced results as a final connection result.

The application discloses a data processing method and device, equipment and a storage medium, relates to the technical field of data processing, and comprises the following steps: when receiving a data write request sent by a client, extracting to-be-written data information from the data write request; performing index calculation on the to-be-written data information according to a preset index rule to obtain first index information; matching the first index information with index information in a pre-constructed index table; and when the first index information matches second index information in the index table, performing a virtual copy operation on the to-be-written data. The method can reduce unnecessary read and write operations, thereby realizing fast data copying and effectively improving system performance. Meanwhile, the adoption of the virtual copy technology can reduce the occupation of actual storage space and avoid the waste of storage resources caused by repeated storage of the same data.