Re: PROBLEM: Celeron Core
- From: Andi Kleen <andi@xxxxxxxxxxxxxx>
- Date: Sun, 20 Jan 2008 20:16:43 +0100
I believe that all throttling does is forcibly halt the CPU on a
particular duty cycle. This will reduce the rate of power consumption,
but reduces the CPU performance by a greater amount (since even at 100%
halted the CPU still consumes power) and so actually reduces performance
per watt. It will spread the heat and power usage produced from a given
workload task out in time (thus its usefulness in limiting CPU
temperature) but will consume more power overall.
...and more importantly deep sleep states in idle save far more power than
anything else and with throttling the CPU is idle shorter.
-Andi
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- Re: PROBLEM: Celeron Core
- From: Robert Han***
- Re: PROBLEM: Celeron Core
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