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:
Feb. 26, 2013
Filed:
Sep. 08, 2010
Anindya Banerjee, Pune, IN;
Niranjan Pendharkar, Pune, IN;
Michael Patrick Wahl, Georgetown, TX (US);
Anindya Banerjee, Pune, IN;
Niranjan Pendharkar, Pune, IN;
Michael Patrick Wahl, Georgetown, TX (US);
Symantec Corporation, Mountain View, CA (US);
Abstract
A mechanism is provided for identifying data that can be removed from a cache memory by determining a memory region of the cache that is less recently accessed than other memory regions in the cache. A tree data structure is used to store a mapping of storage volume data locations to cache data locations. A counter reflecting recency of access to the cache data location is associated with each entry. The counter is incremented, along with counters associated with keys leading to a node including the entry, with each access to the associated cache memory location, while other counters in each affected node are decremented. Advantages of the tree data structure are used to efficiently locate a cache memory location associated with a counter reflecting a less recently accessed state in order to make that cache memory location available for storage of recently accessed data from the storage volume.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile