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:
Apr. 18, 2017
Filed:
Jan. 07, 2016
International Business Machines Corporation, Armonk, NY (US);
David J. Krolak, Rochester, MN (US);
Charles F. Marino, Round Rock, TX (US);
Sooraj R. Nair, Bangalore, IN;
Srinivas Purushotham, Bangalore, IN;
Srinivasan Ramani, Cary, NC (US);
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
A method for monitoring performance of events occurring in a multiprocessor system is provided where the performance monitoring units (PMUs) are globally synchronized. The global synchronization is carried out with a dedicated bit field set to any of pause, stop, restart, or reset command. The command is sent across the scan communications interface (SCOM) of all chips by using existing fabric connecting all nest units to control the PMUs in the system. A pre-scale counter before a main counter may be used to buffer event counts until a reset or a restart command is sent to the SCOM in the system.