[ / / / / / / / / / / / / / ] [ dir / animu / asmr / rel / strek / sw / travis2k / vore / zoo ][Options][ watchlist ]

/tech/ - Technology

You can now write text to your AI-generated image at https://aiproto.com It is currently free to use for Proto members.
Name
Email
Subject
Comment *
File
Select/drop/paste files here
Password (Randomized for file and post deletion; you may also set your own.)
* = required field[▶ Show post options & limits]
Confused? See the FAQ.
Expand all images

File (hide): 9ebfd8ee0f0706f⋯.jpg (6.46 KB, 184x138, 4:3, linus-torvalds-2.jpg) (h) (u)

[–]

 No.899664[Watch Thread][Show All Posts]

>Of the many improvements to be found in the in-development Linux 4.17 kernel -- nicely summarized in our Linux 4.17 feature overview -- one of the features I've been anxious the most to begin benchmarking has been the reported power management improvements. Here are my initial power/performance tests of Linux 4.17 that for some systems is seeing a measurable drop in power usage, even in some cases under load while without sacrificing the performance.

>The most promising power management change in Linux 4.17 is a rework of the kernel's idle loop that may lead to some systems seeing their power drop by up to 10%+.

https://www.phoronix.com/scan.php?page=article&item=linux-417-power&num=1

Also, for the first time there were more lines of code removed than added. That's because some architectures got deprecated.

http://lkml.iu.edu/hypermail/linux/kernel/1804.1/06654.html

 No.899680>>899707 >>899812 >>900176

Pretty cool. Can GNU/Linux laptops last longer than Win10 ones?


 No.899707>>899711 >>899740

>>899680

Only with proper configuration using PowerTOP. Out of the box they can't, unless it's a Chromebook or Dell or something else with Linux pre-installed and tailored to the hardware.


 No.899711>>899756

>>899707

>Linux pre-installed and tailored to the hardware.

No such thing.

You can save power by having better and smarter ACPI settings and having software that consumes fewer CPU cycles in general.


 No.899740>>899812

>>899707

>PowerTOP

TLP.


 No.899756>>899768

>>899711

>no such thing as writing specific drivers for specific hardware

>no such thing as Linux drivers for specific hardware

You're misinformed.


 No.899768>>899770

>>899756

There are linux drivers, but you're delusional if you think they're anywhere near as power efficient as Windows or OSX drivers are. Linux kernel devs don't have the documentation or the time.


 No.899770>>899772

>>899768

I get better battery life with Linux on my T470 than typical reported figures for Windows users.

Anyway the claim was that there's "no such thing" as specific Linux drivers for power saving features. Nice way to move the goalposts.


 No.899772>>899825 >>900168

>>899770

>Nice way to move the goalposts.

I only replied once and you two are arguing the same point.

Drivers aren't really important in power outside of the GPU maybe. CPU doesn't need em and most WiFi cards use common drivers, not that the drivers do much. Hard to write a power-inefficient driver.


 No.899812

>>899680

With my X230 I would get better battery time with Windows.

Firefox is a big battery eater, that's why I have been using more GNOME Web lately

>>899740

They are not mutually exclusive. You will install, configure and never have to worry about TLP anymore, its passive. PowerTop is more for diagnosis.


 No.899825

>>899772

>Drivers aren't really important in power outside of the GPU maybe.

Wrong.

>CPU doesn't need em

Not "drivers" per se but most CPUs use different techniques for power saving, and Intel's not very consistent with sticking to its own plan anyway. The kernel needs work for every new generation of CPU whatever the architecture.

>and most WiFi cards use common drivers

Many of which have crappy power management, which you'd know if you're a Linux user. It's practically a meme at this point that you need to be extra careful when selecting wireless cards, especially if you want good power management.

>not that the drivers do much. Hard to write a power-inefficient driver.

OK I fell for bait.


 No.899873

But linux is already deprecated by Azure Sphere


 No.900168

>>899772

I bought one of these and i can't tell the difference in battery life on my t500

https://www.trendtechcn.com/Product.aspx?ProductId=325


 No.900176

Sounds good, wonder how much of an impact it really will have.

>>899680

GNU/Linux always lasted around 30 minutes longer for me on my current laptop than Windows did.




[Return][Go to top][Catalog][Screencap][Nerve Center][Cancer][Update] ( Scroll to new posts) ( Auto) 5
13 replies | 0 images | Page ?
[Post a Reply]
[ / / / / / / / / / / / / / ] [ dir / animu / asmr / rel / strek / sw / travis2k / vore / zoo ][ watchlist ]