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Hardware support for software controlled fast reconfiguration of performance counters

United States Patent

June 18, 2013
View the Complete Patent at the US Patent & Trademark Office
Hardware support for software controlled reconfiguration of performance counters may include a plurality of performance counters collecting one or more counts of one or more selected activities. A storage element stores data value representing a time interval, and a timer element reads the data value and detects expiration of the time interval based on the data value and generates a signal. A plurality of configuration registers stores a set of performance counter configurations. A state machine receives the signal and selects a configuration register from the plurality of configuration registers for reconfiguring the one or more performance counters.
Salapura; Valentina (Yorktown Heights, NY), Wisniewski; Robert W. (Yorktown Heights, NY)
International Business Machines Corporation (Armonk, NY)
12/ 684,496
January 8, 2010
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support under Contract No. B554331 awarded by the Department of Energy. The Government has certain rights in this invention.