Solid state disk-based read-write performance improvement method and device and computer device
A technology of solid-state hard disk and performance, which is applied in the input/output process of computing and data processing, instruments, etc., and can solve problems such as constraints and limited read and write performance of SSDs.
Inactive Publication Date: 2019-08-27
SHENZHEN YILIAN INFORMATION SYST CO LTD
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At the same time, subsequent reads also need to be read from NAND, and the corresponding performance will be limited by the performance of NAND, resulting in limited read and write performance of SSD.
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[0058] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0059] refer to figure 1The typical NAND composition diagram includes: DIE, a unit that can be operated independently and concurrently; Block, a unit that can be erased independently, and the data at each physical location in it must be erased before the next write; Page, Read and write unit, pages in the same physical block must be programmed in sequence: 0->1->2->3….
[0060] Such as figure 2 As shown, it is the internal write model of the SSD in the traditional technology, which specifically includes: the host submits the write command to the SSD. The SSD front-end ...
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The invention relates to a solid state disk-based read-write performance improvement method and device, a computer device and a storage medium, wherein the method comprises the steps of obtaining a write command request submitted by a host, and building data transmission between an SSD front end and the host, after the data transmission is completed, submitting a control operation request to a template matching module, using the template matching module to compare the data written by the host with a pre-instantiated template Buffer, if any data in the template Buffer is hit by the data, setting a template mark of a corresponding mapping table item in a mapping table module as 1, and recording a template index as a hit template Buffer index, and returning the control operation request to the upper layer module, and finishing the command writing request after the current end module receives the finished control operation request. According to the present invention, the data written by the host is identified and matched with the specific template data, so that the read-write performance of a solid state disk is improved.
Description
technical field [0001] The invention relates to the technical field of solid-state hard drives, in particular to a method, device, computer equipment and storage medium for improving read and write performance based on solid-state hard drives. Background technique [0002] At present, SSD (Solid State Drive) has been widely used in various occasions, and is gradually replacing traditional hard disks due to its excellent performance, power consumption, and environmental adaptability. With the improvement of the SSD interface rate, the overall performance requirements of the SSD are also getting higher and higher. [0003] In the traditional technology, the logical data written by the host of the existing SSD product will be assigned a corresponding physical address, and a logical-to-physical mapping table will be used to track the mapping relationship. For test items with a large number of repeated data characteristics, each piece of data will be actually written to NAND. A...
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IPC IPC(8): G06F3/06
CPCG06F3/061G06F3/0656G06F3/0679
Inventor 王猛徐伟华
Owner SHENZHEN YILIAN INFORMATION SYST CO LTD