公开(公告)号：US20180121126A1

公开(公告)日：2018-05-03

申请号：US15827746

申请日：2017-11-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fenglong SONG ,  Guangfei ZHANG ,  Tao WANG

IPC: G06F3/06 ,  G06F12/1045

CPC classification number: G06F3/0641 ,  G06F3/0608 ,  G06F3/0659 ,  G06F3/0673 ,  G06F12/08 ,  G06F12/084 ,  G06F12/0895 ,  G06F12/1045 ,  G06F2212/1044 ,  Y02D10/13

Abstract: A memory access system includes a memory, a controller, and a redundancy elimination unit. The memory is a multi-way set associative memory, and the redundancy elimination unit records M record items. Each record item is used to store a tag of a stored data block in one of storage sets. The controller determines a read data block and a target storage set of the read data block and sends a query message to the redundancy elimination unit. The query message carries a set identifier of the target storage set of the read data block and a tag of the read data block. The redundancy elimination unit determines a record item corresponding to the set identifier of the target storage set, matches the tag of the read data block with a tag of a stored data block in the record item corresponding to the target storage set of the read data block.