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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Energy consumption vs % utilization?
Speaking on Deep Background, the Press Secretary whispered: > > > You should be able to pick up simple current / wattage meter from local > hardware store for $20 or so. That will tell you that on a modern > dual-CPU machine the power consumption at idle CPU is about 60% of peak. > The rest is consumed by drives, fans, RAM, etc. As wattage the > difference is 100-120W (50-60W per cpu) Bogus data alert.... A ammeter will tell you amps. But in the world of switcher power supplies, that does not beget watts. [Why? is an exercise for the student. Start with "power factor" and "VARS" and worry about asymetric loads...] If you want to talk watts, as you must to worry about HVAC, or really watt-hours... acquire a power company type meter - in glass with a whirlygig. Put it in a meter box with plugs. [See your local eletrical wholesaler..] (The rotating disk watthour meter is amazingly accurate under almost any kind of load waveform. Only time-of-day metering has spurred the utilities to replace them.) Plug the machines into it; it into the wall. Note the numbers and the time, and come back in 24Hours. -- A host is a host from coast to [email protected] & no one will talk to a host that's close........[v].(301) 56-LINUX Unless the host (that isn't close).........................pob 1433 is busy, hung or dead....................................20915-1433
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