more on gallon/mile not MPG and huge amount of datacenter power draws
Tuesday Jul 15, 2008
ecogeek covers whey MPG (miles/gallon) is a silly measuremnt and why gallons/mile
is a much better metric. The didn't draw the conclusions that watt/performance is also
the better measurement, but the same reasoning applies. For more read:
http://www.ecogeek.org/content/view/1875/69/
http://blogs.sun.com/bmseer/entry/mpg_and_perf_watts_are
http://blogs.sun.com/bmseer/entry/miles_gal_perf_watt_use
Also read this interesting fact:
"At the moment, the world's data centres are estimated to consume about 14 gigawatts of power, and to be responsible for 2% of global carbon-dioxide emissions—roughly the same as air traffic." The Economist article.
So why do other companies only measure watts on slow low-GHz CPUs and tiny 8GB-16GB memory instead of measuring on a wide variety of benchmarks like Sun does? My guess (and some unofficial measurements) is that HP and IBM would lose. I'm still waiting for HP's 2.93GHz X64 and IBM Power6 (5GHz or 4.7GHz) system power measurements for instance...
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