A solid-state hard disk garbage collection management method, device and equipment

Abstract

The invention discloses a solid-state hard disk garbage collection management method. If the condition and the number of blocks are 0, if the GC trigger condition is met and the number of blocks is not 0, the block is selected from the GC linked list for garbage collection processing; if the GC trigger condition is met and the number of blocks is 0, the Select blocks on the dirty list for garbage collection. The present invention can sense the existence of blocks on the GC linked list in advance, and when the trigger condition is met and the number of blocks on the GC linked list is 0, blocks are directly obtained from linked lists other than the GC linked list, and the efficiency of garbage collection is higher; The invention also discloses an apparatus, a device and a computer-readable storage medium based on the above method.

Description

technical field [0001] The invention relates to the technical field of garbage collection of solid state disks, in particular to a method for managing garbage collection of solid state disks. The invention also relates to a solid-state hard disk garbage recovery management device, equipment and computer-readable storage medium. Background technique [0002] Garbage Collection (GC) of SSD (Solid State Drives) is actually equivalent to defragmentation. It is an automatic processing mechanism of the main control chip of the SSD itself and does not depend on the operating system. Since SSD erasure is based on blocks (blocks), garbage collection is also performed in units of blocks, that is, all valid pages in a block are moved to a new block, and the old block is erased. The advantage of this is that on the one hand, it reduces the addressing burden, and on the other hand, it leaves more free blocks. Therefore, garbage collection plays a vital role in the performance and lifes...

AI Technical Summary

Problems solved by technology

[0005] In the current garbage collection process, when the triggering conditions of GC are met, it will first try to fetch from the GC linked list, if it cannot be fetched, it will be fetched from other linked lists, but there may be a possibility that the GC linked list does not contain blocks, At this point, the efficiency of the entire GC process is affected.

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