公开(公告)号：US20210303189A1

公开(公告)日：2021-09-30

申请号：US17344112

申请日：2021-06-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： DUCKHO BAE ,  DONG-UK KIM ,  JAEHONG MIN ,  YONG IN LEE ,  JOOYOUNG HWANG

IPC: G06F3/06 ,  G06F9/455 ,  G06F13/42

Abstract: A storage device which is connected to a host using a virtual memory includes a solid state drive that receives a streaming access command including a logical block address (LBA) list and a chunk size, and prefetches stream data requested according to the LBA list and the chunk size from a nonvolatile memory device without an additional command. The prefetched stream data is sequentially loaded onto a buffer, and an in-storage computing block accesses a streaming region registered on the virtual memory to sequentially read the stream data loaded onto the buffer in units of the chunk size. The buffer is mapped onto a virtual memory address of the streaming region.