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This might be the only thing I miss from windows.

There is no way to tell the system to run in high performance mode or in power saver mode.

May be this feature which is already there and I am not sure.

So, Is there a way to change the system operation mode into high-performance? Basically, over burning the rams and processors enabling to do several power effective task like running two OSes on VMWare and not having any performance degradation.

Or, changing the system's mode into power-saver mode affecting the battery life my a lot?

P.S: I dont think what can of hardware I have has to depend while answering this. But if is, I will include my system details as well.

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Possible Duplicate… – Qasim Jun 14 '13 at 14:28
Could be a merge candidate -- the proposed duplicate is newer than this one .... – belacqua Jun 14 '13 at 20:02
up vote 3 down vote accepted

You could install Jupiter (

Which adds this this features to your system and allow you to control it using an indicator

enter image description here

Just add the PPA ppa:webupd8team/jupiter to your system using this command

sudo add-apt-repository ppa:webupd8team/jupiter

Update your reposites and install it using these command(s)

sudo apt-get update && sudo apt-get install jupiter

and you are good to go

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From a Terminal you can do:

sudo pm-powersave false

to run in high-performance mode.

And to run in powersave mode:

sudo pm-powersave true

Documentation: PowerManagement/ReducedPower

Full disclosure: I feel this really should set the CPU governors, but I'm not actually sure it does that! It might have been a bug on my system that has given me doubt, so it might work just fine for you. I'd welcome feedback from others on this.

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