How to Calculate Server Energy Efficiency?
When you tune your server for energy savings, you have to consider performance. Tuning affects performance and power, sometimes in
discrepant amounts. For each probable adjustment, reck of your power
budget and performance goals to determine whether the trade-off is acceptable.
Energy efficiency is the ratio of work that is done to the average power that is required during a specified amount of time.You can find out your server's energy efficiency ratio
for a useful metric that incorporates power and performance information. . In equation form:
In contrast, a goal of 10 percent energy savings across the data center fails to capture the corresponding effects on performance and vice versa.You can use this metric to set practical goals
that respect the tradeoff between power and performance. Similarly, if you tune
your server to increase performance by 5 percent, and that results in 10
percent higher energy consumption, the total result might or might not be
acceptable for your business goals. The energy efficiency metric allows for
more informed decision making than power or performance metrics alone
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