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:
Nov. 08, 2011
Filed:
Apr. 04, 2008
Tong Chen, Yorktown Heights, NY (US);
Marc Gonzalez Tallada, Yorktown Heights, NY (US);
Zehra N. Sura, Yorktown Heights, NY (US);
Tao Zhang, Yorktown Heights, NY (US);
Tong Chen, Yorktown Heights, NY (US);
Marc Gonzalez tallada, Yorktown Heights, NY (US);
Zehra N. Sura, Yorktown Heights, NY (US);
Tao Zhang, Yorktown Heights, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Reducing cache pollution of a software controlled cache is provided. A request is received to prefetch data into the software controlled cache. A first designator is set for a first cache access to a first value. If there is the second cache access to prefetch, a determination is made as to whether data associated with the second cache access exists in the software controlled cache. If the data is in the software controlled cache, a determination is made as to whether a second value of a second designator is greater than the first value of the first cache access. If the second value fails to be greater than the first value, the position of the first cache access and the second cache access in a cache line is swapped. The first value is decremented by a predetermined amount and the second value is replaced to equal the first value.