公开(公告)号：US20220261342A1

公开(公告)日：2022-08-18

申请号：US17179342

申请日：2021-02-18

Applicant: Silicon Motion, Inc.

Inventor： Tzu-Yi Yang

IPC: G06F12/02

Abstract: A method of managing a garbage collection (GC) operation on a flash memory includes: setting a GC starting threshold, wherein the GC starting threshold indicates a predetermined spare block number that is higher than a target spare block number of spare blocks maintained by a flash translation layer (FTL) of the flash memory; determining whether to start the GC operation according to a current number of spare blocks in the flash memory and the GC starting threshold; and performing the GC operation on a source block in the flash memory when the current number of spare blocks is lower than or equal to the GC starting threshold.