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:
Feb. 07, 2012
Filed:
Aug. 29, 2007
Jeffrey Douglas Brown, Rochester, MN (US);
Scott Douglas Clark, Rochester, MN (US);
Mark S. Fredrickson, Rochester, MN (US);
Charles Ray Johns, Austin, TX (US);
David John Krolak, Rochester, MN (US);
Jeffrey Douglas Brown, Rochester, MN (US);
Scott Douglas Clark, Rochester, MN (US);
Mark S. Fredrickson, Rochester, MN (US);
Charles Ray Johns, Austin, TX (US);
David John Krolak, Rochester, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
In a first aspect, a first method of reducing command processing latency while maintaining memory coherence is provided. The first method includes the steps of (1) providing a memory map including memory addresses available to a system; and (2) arranging the memory addresses into a plurality of groups. At least one of the groups does not require the system, in response to a command that requires access to a memory address in the group from a bus unit, to get permission from all remaining bus units included in the system to maintain memory coherence. Numerous other aspects are provided.