Question: [ 1 0 1 0 ? ? 2 0 2 0 ] 1 . 5 > Server farms such as Google and Yahoo! provide enough
Server farms such as Google and Yahoo! provide enough
compute capacity for the highest request rate of the day. Imagine that most of
the time these servers operate at only capacity. Assume further that the power
does not scale linearly with the load; that is when the servers are operating at
capacity, they consume of maximum power. The servers could be turned off,
but they would take too long to restart in response to more load. A new system has
been proposed that allows for a quick restart but requires of the maximum
power while in this "barely alive" state.
a How much power savings would be achieved by turning off of
the servers?
b How much power savings would be achieved by placing of
the servers in the "barely alive" state?
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