Linux 6.2 Likely To Enjoy Measurable Power-Savings While Idle Or Lightly Loaded

[phoronix]

Phoronix: Linux 6.2 Likely To Enjoy Measurable Power-Savings While Idle Or Lightly Loaded

Work carried out by Google engineers around the Linux kernel's read-copy update (RCU) synchronization mechanism to make it "lazier" is helping with 5~10% power-savings for idle or lightly-loaded systems. This "Lazy RCU" work is likely to be merged for the Linux 6.2 kernel merge window in December...

https://www.phoronix.com/news/Lazy-RCU-Likely-For-Linux-6.2

[bezirg]

Amazing work, 5-10% sounds small in the beginning, but with today's apus and battery sizes it may translate to 1+ hours of battery life

[milkylainen]

At what point does it stop batching?
Procrastination has it's own set of issues.

[Danny3]

Wonderful!
So nice to see many great improvements for 6.2.
Too bad this is not the LTS kernel.

[halo9en]

Just when I thought 6.1 would be the perfect LTS...

[caligula]

Just when I thought 6.1 would be the perfect LTS...

The latest (not necessarily LTS) release always contains the most interesting features.

[gabber]

Nice, will there be a test about this? I usually need my laptop battery when travelling to and during conferences. Taking notes in a texteditor 5-10 min/h, surfing the web for 5-10min/h.
Not sure how easy it is to simulate typing into an editor / surfing the web but it would be interesting to see how differnt HW/ OS / Kernel etc. perform.

[nkalkhof]

Looking forward to see some power drain tests on a CFL CPU

[marios]

Google android in a nutshell:

6ygocl.jpg

PS: I am a huge fan of kernel microoptimisations

[mdedetrich]

Google android in a nutshell:

6ygocl.jpg

PS: I am a huge fan of kernel microoptimisations

Wrong once more. If we are talking about Anroid Java at least, it doesn't run JVM but rather compiles to native code. If you download an app from Play store, you download a precompiled binary for architecture and this has been around for at least half a decade. You are not running Java in userspace at all.

But don't let that stop you from posting uninformed dribble.