<9f92edd7-b328-44b1-8665-5b20d2558...@f33g2000yqh.googlegroups.com> Hello David,
On Sun, 15 Jan 2012 15:28:45 -0800, David Kirkby wrote: > I pay about =A30.11/kW hr for electric. I don't know what a server > with 48 GB RAM and 8 cores would use, but lets say 500 W. So over 24 > hours I'd use 0.5*24*0.11=3D=A31.32 or $2.02. So that's just over > $60/month to keep a server on. You're an engineer, so I think you'll agree that the above argument is worthless without data! Your guess of 500 watts is just that -- a guess. An average 500W draw seems high to me, but I'm just guessing too. Perhaps you could buy a Kill-a-Watt (https://en.wikipedia.org/wiki/Kill_A_Watt) or other power meter -- perhaps you already own such a device -- and measure the power at different load levels (idle, all 8 cores pegged, etc). Then we'd *know* how much it would cost you. (Here's a similar device for 17 pounds: http://www.amazon.co.uk/Plug-In-Power-and-Energy-Monitor/dp/B000Q7PJGW/. So it's not too expensive.) Dan -- --- Dan Drake ----- http://mathsci.kaist.ac.kr/~drake -------
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