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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Canonical Announces Availability of Real-Time Kernel for Ubuntu 24.04 LTS - 9to5Linux (9to5linux.com)

submitted 5 months ago by [email protected] to c/[email protected]

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To get started with the real-time kernel for Ubuntu 24.04, check out the official documentation. One thing to keep in mind if you’re an NVIDIA GPU user is that the real-time Ubuntu kernel does not support the proprietary NVIDIA graphics drivers.

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[–] [email protected] 6 points 5 months ago (2 children)

I guess, the governor is set to performance for a realtime kernel to work properly, thus the CPU consumes more power.

[–] [email protected] 4 points 5 months ago

Partially, but the shift is more in the amount of power required to constantly serve interrupts. That's essentially what these flags enable. Where previously the kernel would be more lax about scheduling such things, this let's all those interrupts off the chain. More interrupts = more power draw. The ARM and AMD extensions mean to reduce that in a meaningful way, though.