Zack's Kernel News
Zack's Kernel News
Chronicler Zack Brown reports on the latest news, views, dilemmas, and developments within the Linux kernel community.
New Power-Saving Techniques
Alejandra Morales announced Cryogenic [1], a kernel module that attempted to reduce a system's energy consumption by scheduling non-urgent input/output operations at times when the input/output devices on the system would already be in use. By scheduling this sort of activity in bursts rather than trickles, Cryogenic created a situation that kept devices in an idle, low-power state for longer periods of time. Alejandra added, "Cryogenic is the result of my Master's thesis, completed at the Technical University of Munich under the supervision of Christian Grothoff."
H. Peter Anvin replied, saying that Cryogenic's programmer interface was too clumsy and that such an ambitious project was likely to receive a lot of technical feedback as part of getting it into the kernel.
But, Peter said, "This is NOT a negative, but rather an indication that the work is valuable enough to work with to integrate it into the kernel. Most likely, in my opinion, making this a standalone driver just isn't going to fly, but rather we will want to integrate it into the core I/O model."
[...]
Buy this article as PDF
(incl. VAT)
Buy Linux Magazine
US / Canada
UK / Australia
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs
Subscribe to our ADMIN Newsletters
Support Our Work
Linux Magazine content is made possible with support from readers like you. Please consider contributing when you’ve found an article to be beneficial.
News
-
System76 Releases COSMIC Alpha 7
With scores of bug fixes and a really cool workspaces feature, COSMIC is looking to soon migrate from alpha to beta.
-
OpenMandriva Lx 6.0 Available for Installation
The latest release of OpenMandriva has arrived with a new kernel, an updated Plasma desktop, and a server edition.
-
TrueNAS 25.04 Arrives with Thousands of Changes
One of the most popular Linux-based NAS solutions has rolled out the latest edition, based on Ubuntu 25.04.
-
Fedora 42 Available with Two New Spins
The latest release from the Fedora Project includes the usual updates, a new kernel, an official KDE Plasma spin, and a new System76 spin.
-
So Long, ArcoLinux
The ArcoLinux distribution is the latest Linux distribution to shut down.
-
What Open Source Pros Look for in a Job Role
Learn what professionals in technical and non-technical roles say is most important when seeking a new position.
-
Asahi Linux Runs into Issues with M4 Support
Due to Apple Silicon changes, the Asahi Linux project is at odds with adding support for the M4 chips.
-
Plasma 6.3.4 Now Available
Although not a major release, Plasma 6.3.4 does fix some bugs and offer a subtle change for the Plasma sidebar.
-
Linux Kernel 6.15 First Release Candidate Now Available
Linux Torvalds has announced that the release candidate for the final release of the Linux 6.15 series is now available.
-
Akamai Will Host kernel.org
The organization dedicated to cloud-based solutions has agreed to host kernel.org to deliver long-term stability for the development team.