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. 19, 2012
Filed:
Nov. 16, 2006
Leo J. Clark, Georgetown, TX (US);
James S. Fields, Jr., Austin, TX (US);
Guy L. Guthrie, Austin, TX (US);
William J. Starke, Round Rock, TX (US);
Derek E. Williams, Austin, TX (US);
Leo J. Clark, Georgetown, TX (US);
James S. Fields, Jr., Austin, TX (US);
Guy L. Guthrie, Austin, TX (US);
William J. Starke, Round Rock, TX (US);
Derek E. Williams, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
In a data processing system, a plurality of agents communicate operations therebetween. Each operation includes a request and a combined response representing a system-wide response to the request. Latencies of requests and combined responses between the plurality of agents are observed. Each of the plurality of agents is configured with a respective duration of a protection window extension by reference to the observed latencies. Each protection window extension is a period following receipt of a combined response during winch an associated one of the plurality of agents protects transfer of coherency ownership of a data granule between agents. The plurality of agents employing protection window extensions in accordance with the configuration, and at least two of the agents have protection window extensions of differing durations.