Method and system for autonomic execution path selection in an application
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United States of America Patent
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Feb 19, 2013
Grant Date -
Apr 14, 2005
app pub date -
Oct 9, 2003
filing date -
Oct 9, 2003
priority date (Note) -
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Abstract
A method, an apparatus, and a computer program product in a data processing system are presented for using hardware assistance for gathering performance information that significantly reduces the overhead in gathering such information. Performance indicators are associated with instructions or memory locations, and processing of the performance indicators enables counting of events associated with execution of those instructions or events associated with accesses to those memory locations. The performance information that has been dynamically gathered from the assisting hardware is available to the software application during runtime in order to autonomically affect the behavior of the software application, particularly to enhance its performance. For example, the counted events may be used to autonomically control an execution-path selection within the software application.
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