Facilities for detailed software performance analysis in a multithreaded processor
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United States of America Patent
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-
Jul 3, 2001
Grant Date -
N/A
app pub date -
Dec 11, 1997
filing date -
Dec 11, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method, apparatus, and article of manufacture for monitoring performance of an application or a system program executed by a multithreaded processor arranged and configured to process a plurality of threads and facilitate thread switch. The low-level invisible events, such as cache misses, or other events of interest of an application or a system program, are detected and recorded by using a software monitor program running on a thread of the multithreaded processor via thread switching techniques. The monitoring thread gains control once a selected event is detected while executing the application or system program, and it relinquishes the control after completing the recording of the selected event. The recorded information allows one to dynamically profile the application or the system program and to provide insight into the performance characteristics of the application or the system program.
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