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Hardware support for collecting performance counters directly to memory

United States Patent

8,275,964
September 25, 2012
View the Complete Patent at the US Patent & Trademark Office
Hardware support for collecting performance counters directly to memory, in one aspect, may include a plurality of performance counters operable to collect one or more counts of one or more selected activities. A first storage element may be operable to store an address of a memory location. A second storage element may be operable to store a value indicating whether the hardware should begin copying. A state machine may be operable to detect the value in the second storage element and trigger hardware copying of data in selected one or more of the plurality of performance counters to the memory location whose address is stored in the first storage element.
Gara; Alan (Yorktown Heights, NY), Salapura; Valentina (Yorktown Heights, NY), Wisniewski; Robert W. (Yorktown Heights, NY)
International Business Machines Corporation (Armonk, NY)
12/ 684,172
January 8, 2010
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support under Contract No.: B554331 awarded by Department of Energy. The Government has certain rights in this invention.