Monday, June 14, 2010
Idle = m + C1 + C2 + C3
There are a group of processor performance counters in Windows called "% Cx Time", which show the break down of processor idle time in which the processor goes into a low-power mode. Not all processors support these low-power idle states. The higher the number, the lower the power used by the processor, and the longer the latency before it can get back up running full speed again.
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The Intel Atom N450 supports all 3 low power idle states: C1, C2 and C3. Your average desktop or server probably doesn't.
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