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:
Jun. 03, 2008
Filed:
Mar. 31, 2006
Lily P Looi, Portland, OR (US);
Liqun Cheng, Salt Lake City, UT (US);
Kai Cheng, Portland, OR (US);
Faye a Briggs, Portland, OR (US);
Lily P Looi, Portland, OR (US);
Liqun Cheng, Salt Lake City, UT (US);
Kai Cheng, Portland, OR (US);
Faye A Briggs, Portland, OR (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A snoop filter maintains data coherency information for multiple caches in a multi-processor system. When a new request for a memory line arrives, an entry of the snoop filter is selected for replacement if there is no available slot in the snoop filter to accommodate the new request. The selected entry is among the entries predicted to be short-lived based on a coherency state. An invalidation message is sent to the one of the caches with which the selected entry is associated.