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Distributed trace using central performance counter memory

United States Patent

January 15, 2013
View the Complete Patent at the US Patent & Trademark Office
A plurality of processing cores, are central storage unit having at least memory connected in a daisy chain manner, forming a daisy chain ring layout on an integrated chip. At least one of the plurality of processing cores places trace data on the daisy chain connection for transmitting the trace data to the central storage unit, and the central storage unit detects the trace data and stores the trace data in the memory co-located in with the central storage unit.
Satterfield; David L. (Tewksbury, MA), Sexton; James C. (Yorktown Heights, NY)
International Business Machines Corporation (Armonk, NY)
12/ 684,804
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.