Patent · US Active

Data caching method

US8856444B2 · kind B2 · utility

0Cited by

7References

6Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Christian Habermann · Stuttgart, DE
Martin Recktenwald · Eppelheim, DE
Hans-Werner Tast · Holzgerlingen, DE
Ralf Winkelmann · Eppelheim, DE

Key dates

Filing date	Apr 28, 2012
Grant date	Oct 7, 2014
Priority date	—
Expiry date	Sep 25, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG06F2212/507
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Data caching for use in a computer system including a lower cache memory and a higher cache memory. The higher cache memory receives a fetch request. It is then determined by the higher cache memory the state of the entry to be replaced next. If the state of the entry to be replaced next indicates that the entry is exclusively owned or modified, the state of the entry to be replaced next is changed such that a following cache access is processed at a higher speed compared to an access processed if the state would stay unchanged.

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