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Hardware enabled performance counters with support for operating system context switching

United States Patent

June 30, 2015
View the Complete Patent at the US Patent & Trademark Office
A device for supporting hardware enabled performance counters with support for context switching include a plurality of performance counters operable to collect information associated with one or more computer system related activities, a first register operable to store a memory address, a second register operable to store a mode indication, and a state machine operable to read the second register and cause the plurality of performance counters to copy the information to memory area indicated by the memory address based on the mode indication.
Salapura; Valentina (Yorktown Heights, NY), Wisniewski; Robert W. (Yorktown Heights, NY)
12/ 684,190
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.