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:
May. 11, 2010
Filed:
Feb. 07, 2006
John D. Irish, Rochester, MN (US);
Chad B. Mcbride, Rochester, MN (US);
Andrew H. Wottreng, Rochester, MN (US);
John D. Irish, Rochester, MN (US);
Chad B. McBride, Rochester, MN (US);
Andrew H. Wottreng, Rochester, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present invention provides an improved way to calculate a replacement way within a processor cache that is effective with different combinations of hardware address translation cache miss handling, software address translation cache miss handling, and hint lock bits. For some embodiments, LRU bits used to select an entry for replacement are updated only if software address translation cache miss handling is disabled. Further, for some embodiments, LRU bits may be modified to change the way a binary tree structure is traversed to avoid selecting a hint locked entry for replacement.