Data processing: measuring – calibrating – or testing – Measurement system – Performance or efficiency evaluation
Reexamination Certificate
2005-08-16
2005-08-16
Nghiem, Michael (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system
Performance or efficiency evaluation
Reexamination Certificate
active
06931354
ABSTRACT:
Performance events are counted for a computing system. This includes designating a first processor counter as a low-order counter for counting a certain performance event encountered by the processor and associating with the first counter a second counter as a high-order counter. The first counter is incremented responsive to detecting the performance event for a first processing thread. Responsive to a second thread, an accumulator in system memory for the first thread and first and second counters is updated. Responsive to the first thread becoming active, values of the first and second counters are loaded from the accumulator. Responsive to a user call to read and return a combined value, a first instance of the second counter is read, then the first counter is read and a second instance of the second counter is read before returning the combined value.
REFERENCES:
patent: 4389706 (1983-06-01), Gomola et al.
patent: 6016466 (2000-01-01), Guinther et al.
patent: 6609216 (2003-08-01), Almy et al.
patent: 6754612 (2004-06-01), Vanfladern et al.
Jones, et al., “Method, Apparatus and Computer Program Product for Efficient Per Thread Preformance Information,” IBM Docket AUS920030615US1, Jun. 2003.
Jones Scott Thomas
Levine Frank Eliot
Urquhart Robert John
Bhat Aditya
England Anthony V. S.
Nghiem Michael
Roberts-Gerhardi Diana
LandOfFree
Method, apparatus and computer program product for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method, apparatus and computer program product for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method, apparatus and computer program product for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3509005