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Read performance improvement method and device based on solid state disk and computer device

A technology of solid-state hard drives and computer programs, applied in the field of solid-state hard drives, can solve problems such as disrupted data distribution and low system performance

Active Publication Date: 2019-11-12
SHENZHEN YILIAN INFORMATION SYST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 and device based on solid state disk and computer device
  • Read performance improvement method and device based on solid state disk and computer device
  • Read performance improvement method and device based on solid state disk and computer device

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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 invention relates to a read performance improvement method and device based on a solid state disk, a computer device and a storage medium. The method comprises: acquiring a read performance improvement request based on the solid state disk; equally dividing a user logic address space into a plurality of logic address fields according to the read performance improvement request based on the solid state disk; detecting the degree of parallelism of data distribution in each logic address field; judging whether the parallelism degree of data distribution in the logic address field is smaller than a preset threshold value or not; and if the parallelism degree of data distribution in the logic address field is smaller than a preset threshold value, performing fragmentation on the logic address field. According to the invention, when the parallelism degree of the user data distribution is detected to be lower than a certain threshold, the user data is rearranged according to the logic address, and the parallelism degree of the distribution is improved, so that the purpose of improving the sequential reading performance is achieved.

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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IPC IPC(8): G06F12/02
CPCG06F12/0253G06F2212/1016G06F2212/214
Inventor 李建
Owner SHENZHEN YILIAN INFORMATION SYST CO LTD