公开(公告)号：US20230350807A1

公开(公告)日：2023-11-02

申请号：US18344417

申请日：2023-06-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haixin Wang ,  Ruliang Dong ,  Pei Wu ,  Jianhong Tu

IPC: G06F12/02 ,  G06F13/16 ,  G06F12/0862

CPC classification number: G06F12/0862 ,  G06F12/0246 ,  G06F13/1678

Abstract: A data prefetch method is disclosed. Before data is prefetched, a first data access request is first obtained, and a data prefetch policy is determined based on the first data access request and a data lifecycle, so that a first data set stored in a second storage medium is stored into a first storage medium according to the data prefetch policy. The first data set includes at least one piece of data, the data prefetch policy includes at least a prefetch length, the data lifecycle indicates duration for storing data in the first storage medium, and a read/write access rate of the second storage medium is less than that of the first storage medium.