Ubuntu 12.04 Is A Mixed Power Story
When building the Linux kernel on the notebook, the Precise Pangolin x86_64 performance as the same as the Oneiric Ocelot, but the power usage is lower than 11.10 and near the same levels as 11.04 for this Intel 2011 platform.
As the Core i5 2520M system was handling 7-Zip compression, the Ubuntu 12.04 power consumption was at its lowest power consumption of the tested releases.
Overall for the Intel Core i5 HP EliteBook the power consumption is lower with Ubuntu 12.04 than where it was found in the power-hungry Ubuntu 11.04, but for some tests the power consumption has peaked.
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