Measurement of performance scalability in a microprocessor
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United States of America Patent
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Dec 6, 2016
Grant Date -
Sep 18, 2014
app pub date -
Mar 16, 2013
filing date -
Mar 16, 2013
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Abstract
A scalability algorithm causes a processor to initialize a performance indicator counter, operate at an initial frequency of the first clock signal for a first duration, and determine, based on the performance indicator counter, an initial performance of the first processing core. The algorithm may then cause the processor to operate at a second frequency of the first clock signal for a second duration and determine, based on the performance indicator counter, a second performance of the first processing core. A performance scalability of the first processing core may be determined based on the initial performance and the second performance and an operational parameter, such as one or more clock frequencies and/or supply voltage(s), may be changed based on the determined scalability.
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