On 01/16/12 04:52 AM, Dan Drake wrote:
<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.
I do own such a device - not quite sure where it is is now, but I do have it.
But I can't possibly measure the power consumption now, as I don't have the
right processors in the right machine. At the moment, the 3.16 GHz CPUs are
sitting in a 1U machine which can take a maximum of 32 GB, but only has 16 GB.
Unless the power consumption was under 167 W (most unlikely), it would still
cost more for me for electricity to run a single server here than it costs
William to run his whole house.
If William wants buildbots, and is willing to pay the electric costs for them,
it would be better to locate them outside the UK if possible.
Dave
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