Invention Grant
- Patent Title: Reducing write-backs to memory by controlling the age of cache lines in lower level cache
-
Application No.: US15958563Application Date: 2018-04-20
-
Publication No.: US10552325B2Publication Date: 2020-02-04
- Inventor: Md Kamruzzaman
- Applicant: Western Digital Technologies, Inc.
- Applicant Address: US CA San Jose
- Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
- Current Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
- Current Assignee Address: US CA San Jose
- Agency: Patterson & Sheridan, LLP
- Agent Steven H. Versteeg
- Main IPC: G06F12/00
- IPC: G06F12/00 ; G06F12/0831 ; G06F12/0804 ; G06F12/123 ; G06F12/0806 ; G06F12/122 ; G06F12/128 ; G06F13/00 ; G06F13/28 ; G06F12/12
Abstract:
A method and apparatus for reducing write-backs to memory is disclosed herein. The method includes determining whether a read/write request entering a lower level cache is a cache line containing modified data, and responsive to determining that the read/write request is not a cache line containing modified data, manipulating age information of the cache line to reduce a number of write-backs to memory.
Public/Granted literature
- US20180239703A1 REDUCING WRITE-BACKS TO MEMORY BY CONTROLLING THE AGE OF CACHE LINES IN LOWER LEVEL CACHE Public/Granted day:2018-08-23
Information query
