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:
Dec. 13, 2005
Filed:
Mar. 28, 2003
James N. Dieffenderfer, Apex, NC (US);
Bernard C. Drerup, Austin, TX (US);
Jaya P. Ganasan, Youngsville, NC (US);
Richard G. Hofmann, Apex, NC (US);
Thomas A. Sartorius, Raleigh, NC (US);
Thomas P. Speier, Holly Springs, NC (US);
Barry J. Wolford, Austin, TX (US);
James N. Dieffenderfer, Apex, NC (US);
Bernard C. Drerup, Austin, TX (US);
Jaya P. Ganasan, Youngsville, NC (US);
Richard G. Hofmann, Apex, NC (US);
Thomas A. Sartorius, Raleigh, NC (US);
Thomas P. Speier, Holly Springs, NC (US);
Barry J. Wolford, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and system for reducing latency of a snoop tenure. A bus macro may receive a snoopable transfer request. The bus macro may determine which snoop controllers in a system will participate in the snoop transaction. The bus macro may then identify which participating snoop controllers are passive. Passive snoop controllers are snoop controllers associated with cache memories with cache lines only in the shared or invalid states of the MESI protocol. The snoop request may then be completed by the bus macro without waiting to receive responses from the passive participating snoop controllers. By not waiting for responses from passive snoop controllers, the bus macro may be able to complete the snoop request in a shorter amount of time thereby reducing the latency of the snoop tenure and improving performance of the system bus.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile