The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 18, 2018
Filed:
Dec. 17, 2014
International Business Machines Corporation, Armonk, NY (US);
Timothy J. Dell, Colchester, VT (US);
Shwetha Janardhan, Bangalore, IN;
Sairam Kamaraju, Bangalore, IN;
Saravanan Sethuraman, Bangalore, IN;
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
A memory system includes multiple levels of cache and an auxiliary storage element for storing a copy of a cache line from one of the levels of cache when the cache line of the one of the levels of cache is determined to have been modified. The system also includes a flag configured to indicate a cache state of the modified cache line. The cache state indicates the modified cache line has been copied to the auxiliary storage element. The system also includes a controller communicatively coupled to each of the multiple levels of cache and the auxiliary storage element. The controller is configured to, in response to determining the cache line of the one of the levels of cache has been modified, copy the modified cache line to the auxiliary storage element and set the flag for the modified cache line to indicate the cache state.