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:
Jul. 10, 2012
Filed:
Aug. 12, 2009
Jayanta Basak, New Delhi, IN;
Pradip Bose, Yorktown Heights, NY (US);
Alper Buyuktosunoglu, White Plains, NY (US);
Anita Lungu, Durham, NC (US);
Jayanta Basak, New Delhi, IN;
Pradip Bose, Yorktown Heights, NY (US);
Alper Buyuktosunoglu, White Plains, NY (US);
Anita Lungu, Durham, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A mechanism is provided for predictively power gating a set of units within the data processing system. A second-level power gating controller monitors a set of events for each unit in a set of units within the data processing system. The second-level power gating controller identifies idle sequences of a predetermined set of cycles within the events from each unit where the unit is idle. The second-level power gating controller determines preceding sequences of a predetermined length that precede the idle sequences. The second-level power gating controller determines an accuracy of the preceding sequences. Responsive to the accuracy being above a threshold, the second-level power gating controller sends a permit command to a first-level power gating mechanism associated with the unit to permit power gating of the unit.