‘Why let mere mortals decide CPU priorities when the cosmos can guide us?’ asks the developer.
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(Image credit: Getty) Share Share by: Copy link Facebook X Whatsapp Reddit Pinterest Flipboard Email Share this article 2 Join the conversation Follow us Add us as a preferred source on Google A software engineer has developed a fully functional Linux scheduler that takes its cues from the popular pseudoscience of astrology. The scx_horoscope scheduler “makes CPU scheduling decisions based on real-time planetary positions, zodiac signs, and astrological principles,” notes its creator, Lucas Zampieri. Thus, if you are a Gemini, working on your computer on April 10, 2026, for example, your CPU tasks would run 50% slower.
someone built a Linux CPU scheduler that makes scheduling decisions based on planetary positions and zodiac signsit actually works haha: pic.twitter.com/21rSldWBBK January 26, 2026
It may sound like an exercise in silliness, unless you are a believer, but this GitHub project does a great job demonstrating the power and flexibility of sched_ext. In brief, sched_ext is a relatively new pluggable framework that allows for custom Linux schedulers to be implemented without kernel patching. We are sure the feature wasn’t designed to assign CPU time and other system resources based on the movements of heavenly bodies – but it can.
Zampieri, who is a software engineer at Red Hat specializing in RISC-V architecture projects, discusses the features and implementation of his scx_horoscope on the afore-linked GitHub repository. However, I must confess that the astrological scheduling rules, which weigh the complex mix of planetary domains, the zodiac, element effects, retrograde effects, and more, to balance the priorities of your CPU, networking, system, and memory tasks, are hard to fathom. That complexity makes sched_ext all the more impressive.
Facebook deploys the Steam Deck's Linux scheduler across its data centers
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Reference reading
- https://www.tomshardware.com/software/linux/SPONSORED_LINK_URL
- https://www.tomshardware.com/software/linux/dev-creates-astrology-powered-cpu-scheduler-for-linux-makes-decisions-based-on-planetary-positions-and-zodiac-signs-sched-ext-framework-informed-by-lunar-phases-cosmic-weather-reports-and-dynamic-time-slicing#main
- https://www.tomshardware.com
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