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Read performance improvement method, device and computer equipment based on solid-state hard disk

A technology of solid-state hard disks and computer programs, applied in the field of solid-state hard disks, can solve problems such as low system performance and disrupted data distribution, and achieve the effect of improving parallelism and sequential read performance.

Active Publication Date: 2021-10-26
SHENZHEN YILIAN INFORMATION SYST CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the traditional technology, the user data written in SSD sequentially, after a period of time, due to the user rewriting some of the data, or the internal behavior of the SSD (such as garbage collection), the distribution of these data on the NAND is disrupted, so that System performance is slow when reading this data
The read performance in this scenario has not been reasonably optimized in the existing SSD system

Method used

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  • Read performance improvement method, device and computer equipment based on solid-state hard disk
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  • Read performance improvement method, device and computer equipment based on solid-state hard disk

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Embodiment Construction

[0050] 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.

[0051] In the traditional technology, the user data written in SSD sequentially, after a period of time, due to the user rewriting some of the data, or the internal behavior of the SSD (such as garbage collection), the distribution of these data on the NAND is disrupted, so that When reading this data, the system performance is slow. The existing SSD system may not pay attention to the read performance in this scenario.

[0052] Aiming at the defects of the prior art, the present invention proposes a method for improving read performance based on a solid-state hard disk, ...

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Abstract

The present application relates to a method, device, computer equipment, and storage medium for improving read performance based on a solid-state hard disk, wherein the method includes: obtaining a read performance improvement request based on a solid-state hard disk; The logical address space is equally divided into multiple logical address segments; detecting the parallelism degree of data distribution in each logical address segment; judging whether the parallelism degree of data distribution in the logical address segment is less than a preset threshold; if the logical address segment in the If the parallelism of data distribution is less than a preset threshold, the logical address segment is defragmented. The present invention rearranges user data according to logical addresses when detecting that the parallelism of user data distribution is lower than a certain threshold, thereby increasing the parallelism of its distribution, thereby achieving the purpose of improving sequential read performance.

Description

technical field [0001] The present invention relates to the technical field of solid-state hard disks, in particular to a method, device, computer equipment and storage medium for improving read performance based on solid-state hard disks. 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. The storage medium in the current mainstream SSD is a set of NAND Flash that can perform read and write operations concurrently, called Die. The read performance of the SSD is closely related to the distribution of the data in the SSD on these Dies. When the data is distributed on each Die in an orderly manner, the concurrency of these Dies can be used to the maximum, so that the SSD can provide users with high performance. read bandwidth. [0003] In the traditional technology, the user data writt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/02
CPCG06F12/0253G06F2212/1016G06F2212/214
Inventor 李建
Owner SHENZHEN YILIAN INFORMATION SYST CO LTD