Linux

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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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Optimising Ubuntu performance on amd64 architecture (ubuntu.com)

submitted 10 months ago by [email protected] to c/[email protected]

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[–] [email protected] 6 points 10 months ago (26 children)

I cant put my finger on it but linux does not feel as snappy as windows. I use Linux 100% now but when I am fixing something on a windows machine I notice a certain smoothness that I don't notice on linux.

[–] [email protected] 13 points 10 months ago* (last edited 10 months ago) (1 children)

I'd wager that it's your scheduler. Prior to the latest kernel release (v6.6), Linux used the CFS scheduler which is outdated and not really optimal for desktop usage. As a result, many third-party alternate schedulers were developed to fix this issue, with the most recent popular ones being the System76 scheduler (used in Pop!_OS), and BORE (used in CachyOS). But this issue has been solved officially now, with the EEVDF scheduler (earliest eligible virtual deadline first scheduling), which has finally replaced CFS.

So if you're not on 6.6, upgrade to it, or use the System76 scheduler. Also switch to Wayland if you haven't already and you'll notice your Linux desktop just as smooth, if not smoother, than Windows.

I have an M1 MacBook Air and a Thinkpad Z13 G1 (running Bazzite KDE with kernel 6.6.3 + System76 scheduler), and comparing the touchpad gestures and window animations side-by-side - especially the gestures and animation to switch workspaces - it's just as smooth as macOS (at least to my eyes), and that's quite the feat given that macOS has been the king of smooth animations and responsiveness for a long time.

[–] [email protected] -2 points 10 months ago

I'd wager that it's your scheduler.

How did you know??

Linux used the CFS scheduler which is outdated and not really optimal for desktop usage.

And Linux kernel is full of outdated math. Like outdated addtion, outdated subtraction. /s

If you want "like on windows", then you need dynamic priority, not another scheduling algorithm. Basically you want your compositor to set lower priority value(which means higher priority) to process whoose window now is focused.

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