Solid state disk garbage collection method and device based on multi-core CPU

Abstract

The invention discloses a solid state disk garbage collection method, device and equipment based on a multi-core CPU and a computer readable storage medium. The solid state disk garbage collection method is applied to a garbage collection module and comprises the steps that when garbage collection is conducted on a target block, a reverse mapping table is read and verified to obtain valid data inthe target block, and the valid data is written into a garbage collection table; when the quantity of the valid data in the garbage collection table reaches a threshold value, the garbage collection table is sent to an FTL module, so that the FTL module moves the verified target valid data to a pre-selected block; after data migration is completed, the target valid data in the target block is marked as invalid data; and when the remaining valid data in the target block is 0, the target block is erased to complete garbage collection of the target block. According to the method, the device, theequipment and the computer readable storage medium provided by the invention, the garbage recycling efficiency is improved.

Description

technical field [0001] The present invention relates to the technical field of solid-state storage, in particular to a solid-state hard disk garbage collection method, device, equipment and computer-readable storage medium based on a multi-core CPU. Background technique [0002] With the development and wide application of technologies such as the Internet, cloud computing, Internet of Things, and big data, massive amounts of data are generated all the time in human life, and these massive amounts of data need to be processed and stored. The performance of the storage system puts forward higher requirements. Solid State Drive SSD (Solid State Drive SSD) is widely used because of its fast read and write speed and low energy consumption. [0003] At present, the use of solid-state drives is becoming more and more widespread, and the requirements for the performance and capacity of solid-state drives are higher. may meet the needs of the application. [0004] The current sce...

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Problems solved by technology

[0010] The purpose of the present invention is to provide a solid-state hard disk garbage collection method, device, equipment and computer-readable storage medium based on multi-core CPU, to solve the problem of low recycling efficiency of firmware hard disk garbage collection methods in the prior art

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