Is PowerTop / TLP Still Useful To Save Power On Linux Laptops?

[cen1]

Wait a second.. power saving with almost no loss of performance? Why is this not used by default in all distros? WTF

[Inopia]

Wait a second.. power saving with almost no loss of performance? Why is this not used by default in all distros? WTF

Distros are conservative about some power saving options as they may cause problems with some devices.

[arbition]

And what do you say about it? Although PowerTOP [overstates it - it will not show me the duration of the action longer than eg 10 h], it misrepresents because real consumption can go down to about 1.5 Watt. The time of operation of the Asus UX303LN under my solutions is about 10-12 h - editing documents + Internet [chrome].

https://www.dropbox.com/s/1q17i1friy...10525.png?dl=0

Well I meant a relative reduction. My laptop is already not a very low power laptop, but it goes from 15w to about 12w. Otherwise I'm not sure what you're asking.

[gayan]

Not that I've done any of the extensive tests like Michael has, nonetheless, whenever possible, I always include a 'power usage' data in my 'Linux' reviews (https://www.hecticgeek.com). And as far as I can tell, TLP does such an impressive job while cutting down the power usage on Laptops (
https://www.hecticgeek.com/2017/12/best-linux-laptop/), sometimes as high as 24-25%, almost always without any manual tweaks (although if you know what you're doing, you can always manually edit its main configuration file to further optimize the power usage).

I highly recommend that you install a power optimizer such as TLP after installing a 'Linux' distribution.