Cutting the Electric Bill for Internet-Scale Systems. Asfandyar Qureshi , Rick Weber, Hari Balakrishnan,John Guttag , Bruce Maggs Presented by Patrick McClory . Introduction.
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AsfandyarQureshi, Rick Weber,
Presented by Patrick McClory
Wh = n * (P_idle + (P_peak – P_idle) * U + (PUE -1) * P_peak) * 365 * 24
Server numbers estimated from a variety of sources.
PUE = 2, U= 30%, P_peak = 250 W, P_idle = 60-75% P_peak
$60 per MWh
P_cluster(u_t) = F(n) + V(u_t, n) + e
F(n) = n * (P_idle + (PUE-1) * P_peak)
V(u_t, n) = n * (P_peak – P_idle) * (2u_t – u_t^r)
PUE – Power Usage Effectiveness – ratio of total power delivered to data center to the power delivered for computing equipment.