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:
Nov. 18, 2014
Filed:
Dec. 10, 2003
Ravi Kumar Arimilli, Austin, TX (US);
Sanjeev Ghai, Round Rock, TX (US);
Warren Edward Maule, Cedar Park, TX (US);
Ravi Kumar Arimilli, Austin, TX (US);
Sanjeev Ghai, Round Rock, TX (US);
Warren Edward Maule, Cedar Park, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A data processing system includes a system memory, one or more processing cores, and a memory controller that controls access to a system memory. The memory controller includes a memory speculation mechanism that stores historical information regarding prior memory accesses. In response to a memory access request, the memory controller speculatively initiates access to the system memory based upon the historical information in the memory speculation mechanism in advance of receipt of a coherency message indicating that the memory access request is to be serviced by reference to the system memory.