CachyOS Apps

Install sched-ext Manager on CachyOS

Simple GUI for managing sched-ext schedulers via scx_loader.

From the official CachyOS repo. Install with pacman, no AUR helper needed.

Reviewed Nov 2, 2026 · independent guide · Read the sched-ext Manager guide

How do I install sched-ext Manager on CachyOS?

Run this in a terminal, then open sched-ext Manager from your app menu:

sudo pacman -S scx-manager

scx-manager is in the cachyos repo, the CachyOS project's own package repository, so pacman installs it directly with no AUR helper and no build script. The package is signed with the CachyOS repository key, and pacman checks the signature before it installs.

What should I do after installing sched-ext Manager?

  1. Open sched-ext Manager from your app menu.
  2. Or run scx-manager in a terminal.
  3. Run pacman -Qi scx-manager to see the installed version and the optional dependencies.

Full sched-ext Manager guide: first run, key settings, common fixes and uninstall

How do I update or remove sched-ext Manager?

Update:

sudo pacman -Syu

Remove:

sudo pacman -Rns scx-manager

What is sched-ext Manager?

Simple GUI for managing sched-ext schedulers via scx_loader.

Package description: Simple GUI for managing sched-ext schedulers via scx_loader

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    From GitHub

    CachyOS/scx-manager · ★ 38 stars · last commit Sep 23, 2026

    Real issues opened by users on the project's GitHub, shown as written with a link to each one. 10 most reacted issues opened in the last two years plus the 5 newest issues, bots, pull requests, non English and political posts skipped, capped at 15 per repo. Fetched Nov 1, 2026.

    1. Custom args not saved properlyClosed

      If I use scx-manager to set a custom argument, it does use them at the first start. But if I restart the service, the custom arguments are gone. And after a systemctl restart scx-loader

      @shelterx · · 2 comments · View on GitHub

    2. Asks for password, but toggles status regardless of empty passClosed

      Not sure if it's intended, but today I faced this odd behavior, that the GUI asks for password, and even if I don't enter my password, the scx is properly toggling it's statuses. Afaik the CLI scxctl doesn't require password at all, so I'm not sure if the dialog for the password…

      @ghost · · 3 comments · View on GitHub

    3. Sched-ext GUI manager - bpfland lowlatencyClosed

      Hello, When selecting bpfland lowlatency and trying to apply it, it goes to disabled instead. This happened after a recent schedext / kernel update. schedext extra flags: -s 5000 -S 500 -l 5000 -m performance

      @compulsions · · 2 comments · View on GitHub

    4. Populating supported_scheds via scxctlClosed

      Hello there, I have been doing some digging around with scx in regards to some other PR's that I have been exploring, and it got me thinking about scx-manager, rather than submitting PR's like the below: What if we instead used scxctl list to generate the list of scx schedulers…

      @michaelr0 · · 1 comments · View on GitHub

    5. scx_flow - Cannot get scx flags from scx_loader configurationClosed

      Issue appears every time the newly added scxflow gets selected in scx-manager (SupportedSched::Flow) is present in scx-loader's getdefaultconfig() but missing from the getdefaultscxflagsformode() match arms Name : scx-scheds Version : 1.1.1-1 Name : scx-manager Version :…

      @Profetorum · · 0 comments · View on GitHub

    6. Add a "Enable the nohz_full" hint when trying to apply the "scx_tickless(Server)" scxed-ext scheduler.Open

      Seemed that "scxtickless" need to work with nohzfull which needed to be configured in kernel. Add a hint in scxmanager when trying to enable "scxtickless" in a kernel which didn't configure "nohzfull" may help the "scxtickless" scheduler run correctly. Related logs:

      @Rain-Clear · · 1 comments · View on GitHub

    7. "Running sched-ext scheduler" still displays "disabled" after clicking on "Apply"Closed

      As the video shows.

      @Rain-Clear · · 0 comments · View on GitHub

    sched-ext Manager on CachyOS: questions

    Is sched-ext Manager in the official CachyOS repo?

    Yes. The scx-manager package is in the cachyos repo, version 1.16.0-1, built 2026-09-06. Install it with sudo pacman -S scx-manager.

    Do I need an AUR helper for sched-ext Manager?

    No. It comes from the cachyos repo, so plain pacman installs and updates it, and sudo pacman -Syu keeps it current.

    What is the sched-ext Manager command?

    scx-manager. The package is called scx-manager.