SSD read performance optimization method, device, computer equipment and storage medium
An optimization method and performance technology, applied in the field of computer equipment and storage media, devices, and SSD read performance optimization methods, can solve problems such as low read performance and achieve the effect of improving read performance
Active Publication Date: 2022-03-29
SHENZHEN YILIAN INFORMATION SYST CO LTD
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Problems solved by technology
[0006] However, for some application scenarios, there are high requirements for read performance. Under the existing strategy, the data needs to be moved from the SLC physical block to the MLC / TLC / QLC physical block in the original physical block type to release the SLC. Physical block space, resulting in lower performance for subsequent reads
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[0066] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0067] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or Presence or addition of multiple other features, integers, steps, operations, elements, components and / or collections thereof.
[0068] It should also be understood that the terminology used ...
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The present invention relates to an SSD read performance optimization method, device, computer equipment and storage medium. The method includes dividing the SLC physical block of the solid-state hard disk to obtain the SLC physical block of the user's read cache data; obtaining the cache data read management table; obtaining the read command ; Read the read command, and update the cache data read management table according to the read command; judge whether there is an initial logical space that does not meet the requirements according to the updated cache data read management table; if so, obtain the unqualified Initial logical space to obtain the target logical space; update the relevant information of the target logical space in the updated cache data read management table; read the user data corresponding to the target logical space from the TLC physical block; The user data is stored in the SLC physical block of the user read cache data corresponding to the target logical space for the host to read again. The invention improves the reading performance of the solid-state hard disk.
Description
technical field [0001] The present invention relates to a solid-state hard disk, and more specifically refers to an SSD reading performance optimization method, device, computer equipment and storage medium. Background technique [0002] SSD (Solid State Drive) has been widely used in various occasions. At present, in the mainframe market, it has gradually replaced the traditional hard disk drive, providing users with a better experience in terms of reliability and performance. [0003] With the evolution of NAND technology, SLC (Single-Level Cell) / MLC (Multi-Level Cell) / TLC (Trinary-Level Cell) / QLC ( Each unit stores 4 bits of data, Quad-Level Cell) and other different types of particles. The performance of these different types of NAND is different. With the evolution of the technology, the capacity of the particles is increasing, but the read and write performance is declining. [0004] In existing SSDs, some physical blocks are generally converted to SLC mode to absorb...
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IPC IPC(8): G06F3/06
CPCG06F3/061G06F3/064G06F3/0656G06F3/0679
Inventor 王猛徐伟华
Owner SHENZHEN YILIAN INFORMATION SYST CO LTD