Patent · US Active

Systems and methods for accessing cache memory

US9384131B2 · kind B2 · utility

4Cited by

3References

19Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Christian Habermann · Stuttgart, DE
Christian Jacobi · West Park, US
Sascha Junghans · Herrenberg, DE
Martin Recktenwald · Eppelheim, DE
Hans-Werner Tast · Holzgerlingen, DE

Key dates

Filing date	Mar 15, 2013
Grant date	Jul 5, 2016
Priority date	—
Expiry date	Jul 24, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG06F2212/1024
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Systems and methods for providing data from a cache memory to requestors includes a number of cache memory levels arranged in a hierarchy. The method includes receiving a request for fetching data from the cache memory and determining one or more addresses in a cache memory level which is one level higher than a current cache memory level using one or more prediction algorithms. Further, the method includes pre-fetching the one or more addresses from the high cache memory level and determining if the data is available in the addresses. If data is available in the one or more addresses then data is fetched from the high cache level, else addresses of a next level which is higher than the high cache memory level are determined and pre-fetched. Furthermore, the method includes providing the fetched data to the requestor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.