公开(公告)号：US11860781B1

公开(公告)日：2024-01-02

申请号：US17662062

申请日：2022-05-04

Applicant: Amazon Technologies, Inc.

Inventor： Moshe Raz ,  Guy Nakibly ,  Gal Avisar

IPC: G06F12/00 ,  G06F12/0802 ,  G06F3/06

CPC classification number: G06F12/0802 ,  G06F3/0604 ,  G06F3/0655 ,  G06F3/0673 ,  G06F2212/60

Abstract: A write cleaner circuit can be used to implement write-through (WT) functionality by a write-back (WB) cache memory for updating the system memory. The write cleaner circuit can intercept memory write transactions issued to the WB cache memory and generate clean requests that can enable the WB cache memory to send update requests to corresponding memory locations in the system memory around the same time as the memory write transactions are performed by the WB cache memory, and clear dirty bits in the cache lines corresponding to those memory write transactions.