公开(公告)号：US20240311304A1

公开(公告)日：2024-09-19

申请号：US18502233

申请日：2023-11-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Minsik OH ,  Donggil KANG ,  Kyungjune CHO ,  Jongmin KIM ,  Jinwoo SONG ,  Kyungsik UM ,  Myunggwan JEONG

IPC: G06F12/0815 ,  G06F12/0862

CPC classification number: G06F12/0815 ,  G06F12/0862

Abstract: A storage controller includes a host interface configured to communicate with a host, a buffer memory configured to buffer data read from a non-volatile memory, a cache memory including a plurality of cache lines and configured to store the data in at least one of the plurality of cache lines, and a cache controller configured to manage a status bitmap. The status bitmap indicates priority information of the plurality of cache lines according to an operation corresponding to a request received from the host interface, and the cache controller is further configured to select a victim cache line, among the plurality of cache lines, to be replaced based on the status bitmap. In this case, the operation corresponding to the request corresponds to one of normal read, prefetch, read-after-read, and read-after-prefetch.