MEMORY SYSTEM AND A METHOD FOR GARBAGE COLLECTION OF THE MEMORY SYSTEM

Abstract: embodiments of the present disclosure provide a memory system, and a method for garbage collection of the memory system. the method can include reading n valid data sets in a to-be-collected virtual block (vb) of a memory out to a copy buffer sequentially, where n is an integer greater than or equal to 2, transferring a valid data set in the copy buffer to a corresponding cache, and reading a next valid data set out to the copy buffer, and programming the valid data set in the cache to a corresponding target die group of a target vb. a time period in which a current valid data set is programmed from the cache to the target die group corresponding to the cache overlaps at least partially with a time period in which a next valid data set is read from the to-be-collected vb to the copy buffer.

Inventor(s): Huadong HUANG, Yonggang CHEN

CPC Classification: G06F12/0253 ({Garbage collection, i.e. reclamation of unreferenced memory})

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