CPU power management based on utilization with lowest performance mode at the mid-utilization range
First Claim
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1. A method comprising:
- causing a processor to enter a particular performance mode based on a first and a second utilization threshold, wherein the particular performance mode includes at least a first performance mode, a second performance mode, and a third performance mode; and
causing the processor to operate with a clock frequency in the third performance mode that is lower than the clock frequency of the processor in the first and second performance modes.
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Abstract
A demand-based method and system of a processor power management is described. A processor is caused to enter a particular performance mode based on a first and a second utilization threshold. The particular performance mode includes at least a first performance mode, a second performance mode, and a third performance mode. The processor is caused to operate with a clock frequency in the third performance mode that is lower than the clock frequency of the processor in the first and second performance modes.
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Citations
20 Claims
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1. A method comprising:
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causing a processor to enter a particular performance mode based on a first and a second utilization threshold, wherein the particular performance mode includes at least a first performance mode, a second performance mode, and a third performance mode; and
causing the processor to operate with a clock frequency in the third performance mode that is lower than the clock frequency of the processor in the first and second performance modes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15)
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11. A machine-readable medium having a plurality of instructions executable by a data processing system embodied therein, wherein said instructions when executed to cause said data processing system to perform the following operations, comprising:
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causing a central processor to enter a particular performance mode based on a first and a second utilization threshold, wherein the particular performance mode includes at least a first performance mode, a second performance mode, and a third performance mode; and
causing the central processor to operate with a clock frequency in the third performance mode that is lower than the clock frequency of the central processor in the first and second performance modes.
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16. A data processing system comprising:
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a central processing unit to process data and execute instructions;
a memory to store a plurality of instructions which when executed by said central processing unit cause said data processing system to;
cause the central processing unit to enter a particular performance mode based on a first and a second utilization threshold, wherein the particular performance mode includes at least a first performance mode, a second performance mode, and a third performance mode; and
cause the central processing unit to operate with a clock frequency in the third performance mode that is lower than the clock frequency of the central processing unit in the first and second performance modes. - View Dependent Claims (17, 18, 19, 20)
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Specification