A method, device, device and storage medium for reading and writing a solid-state hard disk

Abstract

The present application discloses a method for reading and writing a solid-state hard disk, including calculating the corresponding super page in advance according to each physical page in the solid-state hard disk; The physical page searches for the corresponding target super page, so as to use the target super page to perform read and write operations, thereby avoiding the need to use division to obtain the target super page corresponding to the target physical page after receiving the read and write instructions . Compared with the division operation, the search operation has faster processing speed and less time-consuming, so the delay of reading and writing operations is shortened, so the IOPS of the solid-state hard disk is improved, and the read-write performance of the solid-state hard disk is improved. The application also discloses a read-write device, equipment and computer-readable storage medium of a solid-state hard disk, all of which have the above-mentioned beneficial effects.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a method, device, equipment and computer-readable storage medium for reading and writing a solid-state hard disk. Background technique [0002] With the rapid development of technologies such as the Internet, cloud computing, and the Internet of Things, SSDs (Solid State Drives) are widely used as a new generation of storage devices. [0003] In the prior art, after receiving the read and write operation instructions, the SSD obtains the physical page in the operation instruction, and then calculates the page corresponding to the physical page by division operation according to the L2P Table (Logical to Physical Address Table, logic-physical address mapping table). super page. For example, in TLC, physical page0, physical page1, and physical page2 all belong to super page0, and the method of obtaining the value of super page0 is obtained by using division operations of 0 / 3, 1 / ...

AI Technical Summary

Problems solved by technology

However, the division operation is a floating-point operation, so the CPU needs to consume a lot of time when performing the division operation, which delays the read and write operations and seriously affects the performance of the SSD.

Images