A solid-state hard disk garbage collection method, system, electronic device and storage medium

Abstract

The present application discloses a solid-state hard disk garbage collection method. The solid-state hard disk garbage collection method includes: determining a solid-state hard disk block to be recycled, and determining a valid data bitmap of the to-be-recycled block; reading the valid data bitmap Get the local array, and set the index value as the default value; scan the local array according to the preset order, and determine whether the current data is valid data; if so, initiate a garbage collection read operation on the valid data, and according to the The index value is updated with the address of the valid data; the current read position of the local array is determined according to the updated index value, and the local array is continued to be scanned from the current read position in a preset order. The present application can improve the garbage collection efficiency of the solid state disk. The present application also discloses a solid-state hard disk garbage collection system, an electronic device and a storage medium, which have the above beneficial effects.

Description

technical field [0001] The present application relates to the technical field of data storage, and in particular, to a solid-state hard disk garbage collection method, system, electronic device, and storage medium. Background technique [0002] When the allocated space in the solid state disk is no longer used, the space is usually reclaimed based on a garbage collection (Garbage Collection, GC) mechanism. In order to improve the random write performance, it is necessary to improve the efficiency of garbage collection. From the perspective of the efficiency of each stage of garbage collection, the read efficiency of garbage collection is lower than the write efficiency of garbage collection, which affects the overall efficiency of garbage collection. [0003] Therefore, how to improve the garbage collection efficiency of the solid state disk is a technical problem that needs to be solved by those skilled in the art. SUMMARY OF THE INVENTION [0004] The purpose of this ap...

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Problems solved by technology

In order to improve random write performance, garbage collection efficiency needs to be improved. From the perspective of the efficiency of each stage of garbage collection, the read efficiency of garbage collection is lower than the write efficiency of garbage collection, which affects the overall efficiency of garbage collection.

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