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{{x86 title|C-states}}
 
{{x86 title|C-states}}
'''C-states''' are the [[idle state]]s policies that govern an [[x86]] system - i.e. states that shut down parts of the microprocessor when cores are not used.
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'''C-states''' are the [[idle state]] policies that govern an [[x86]] system - i.e. states that shut down parts of the microprocessor when [[cores]] are not used. Modern x86 [[microprocessors]] have several C-states representing an increasingly larger part of the processor that's being shut down. Additionally because x86 MPUs are also exclusively [[multi-core]], most recent microarchitectures include two C-states: core-based C-states called '''CC-states''' and a package-based C-states called '''PC-states'''.
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Revision as of 16:50, 22 January 2017

C-states are the idle state policies that govern an x86 system - i.e. states that shut down parts of the microprocessor when cores are not used. Modern x86 microprocessors have several C-states representing an increasingly larger part of the processor that's being shut down. Additionally because x86 MPUs are also exclusively multi-core, most recent microarchitectures include two C-states: core-based C-states called CC-states and a package-based C-states called PC-states.


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