What is the function that describes the relation between CPU utilization and consumption of energy (electricity/heat wise).
I wonder if it’s linear/sub-linear/exp etc..
I am writing a program that decreases the CPU utilization/load of other programs and my main concern is how much do I benefit energy wise..
Moreover, my server is mostly being used as a web-server or DB in a data-center (headless).
In case the data center need more power for cooling I need to consider that as well..
I also need to know what is the effect of CPU utilization on the entire machine power consumption ..
Here you can find a short ppt answering your questions, and providing additional info.
Although there is no Copyright notice in the ppt, the work is probably protected, so I will copy here only three graphs relevant to your main question and follow-ups in comments.
HTH!