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* Measured all the powertop recommendations across a bunch of machines and found a common set of improvements that should not cause any regressions for an LTS and added them into pm-utils. Maybe trivial, but we wanted to ensure we didn't cause any major upsets for an LTS.
* Worked through a list of possible power saving options suggested during UDS: https://blueprints.launchpad.net/ubu...wer-management - this does take time to do accurately and methodically across a range of hardware. We have a lot of details results here and the Phoronix write up is a re-working of the top level summary of this work. I hope readers examine the original source data and understand how much effort has been put into identifying the low-hanging fruit. The data can be found at: http://zinc.canonical.com/~cking/power-benchmarking/ It is useful to understand the kinds of power savings possible and understand exactly where to focus attention. Some of the work was just to identify low-risk low-hanging fruit.
* Identified applications that were sub-optimally doing wakeups and we have engineers working on fixing these right now. See https://bugs.launchpad.net/ubuntu/+b...er-consumption - as you may appreciate some issues are not quick fixes and require engineering time and effort to address.