this post was submitted on 23 Jun 2023
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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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The reason compositors historically increase input lag so much is due to design flaws in Xorg. With VRR Wayland has comparable input lag to Xorg with no compositor, and it's only slightly worse than Xorg without VRR. In the best case scenario Wayland can have better input lag than uncomposited Xorg: there's a reason the Steam Deck uses Wayland in game mode.
I think as of recently Wayland with compositing might actually have better input lag than Xorg without compositing, but I haven't seen any thorough benchmarks in the past few months.