Detailing The Idle Loop Ordering Problem & The Power Improvement In Linux 4.17

[phoronix]

Phoronix: Detailing The Idle Loop Ordering Problem & The Power Improvement In Linux 4.17

Of the many great features/changes for Linux 4.17, one of the most exciting to us is the idle power efficiency and performance-per-Watt improvements on some systems thanks to a rework to the kernel's idle loop handling. Rafael Wysocki and Thomas Ilsche as two of the developers working on this big code change presented on their work today for this CPU idle loop ordering problem and its resolution...

http://www.phoronix.com/scan.php?page=news_item&px=Idle-Loop-Ordering-4.17-Power

[microcode]

We need to have some sort of non-profit program for sending out wireless lapel microphones to people who might at some point need to record voice. It's a lot of effort to set up recordings like this, but if the audio is not readily intelligible, you might as well have just shared the slides.

[nomadewolf]

We need graphs of the power improvement!...
Graphs are pretty!

[paulpach]

Is there a TL;DR of the talk?

[dwagner]

Indeed, an hour of video seems inefficient to grasp just this concept.

This sums up the stuff technically: https://lkml.org/lkml/2018/4/11/337

[Thomas_]

We need to have some sort of non-profit program for sending out wireless lapel microphones to people who might at some point need to record voice. It's a lot of effort to set up recordings like this, but if the audio is not readily intelligible, you might as well have just shared the slides.

I passed that feedback on, but the organizers are working with what they got. The slides will be posted on the website, in the meantime here is my part.

[microcode]

I passed that feedback on, but the organizers are working with what they got. The slides will be posted on the website, in the meantime here is my part.

Cool, thanks. I was looking for a place in the area to deliver the equipment same-day, but it seems like Pisa is somewhat lacking for professional audio equipment shops.