Management of core power state transition in a microprocessor
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United States of America
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Mar 24, 2020
Grant Date -
Apr 12, 2018
app pub date -
Dec 7, 2017
filing date -
Dec 7, 2017
priority date (Note) -
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Abstract
A method and apparatus for adjusting a frequency of a processor is disclosed herein. In one embodiment, the method includes inhibiting one or more processor cores from exiting an idle state. The method further includes determining a number of processor cores requesting exit from the idle state and a number of non-idle processor cores. The method also includes selecting a maximum frequency for the inhibited processor cores based on the number of inhibited processor cores requesting exit from the idle state and the number of non-idle processor cores. The method includes setting the maximum frequency for the inhibited processor cores, and then uninhibiting the processor cores requesting exit from the idle state.
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