2024-04-03 20:31:14 +01:00
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# Install Instructions by Distro
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## Ubuntu
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Experimental sched_ext support for Ubuntu is provided by the following
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launchpad project:
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https://launchpad.net/~arighi/+archive/ubuntu/sched-ext
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#### Upgrading to 24.04 (NobleNumbat)
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Currently, only the 24.04 release is supported. You can upgrade to 24.04
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using the following command:
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```
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$ sudo do-release-upgrade -d
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```
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#### Installing the Kernel and Schedulers
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```
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$ sudo add-apt-repository -y --enable-source ppa:arighi/sched-ext
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$ sudo apt install -y linux-generic-wip scx
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$ sudo reboot
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```
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After the reboot, the scheduler binaries in `/usr/sbin/scx_*` should be usable.
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Note: they must be called with `sudo` like other BPF programs e.g. `sudo scx_simple`.
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#### Setting up Dev Environment
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```
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$ apt source scx
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$ sudo apt build-dep scx
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```
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## Arch Linux
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Import the gpg key. This can be skipped if the signature checking is disabled.
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```
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$ sudo pacman-key --recv-keys F3B607488DB35A47 --keyserver keyserver.ubuntu.com
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$ sudo pacman-key --lsign-key F3B607488DB35A47
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```
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If you haven't imported the GPG key, append the following line.
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```
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SigLevel = Never
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```
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#### Adding the Repository
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Install packages with a list of mirrors and GPG keys
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```
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$ sudo pacman -U 'https://mirror.cachyos.org/repo/x86_64/cachyos/cachyos-keyring-20240331-1-any.pkg.tar.zst' 'https://mirror.cachyos.org/repo/x86_64/cachyos/cachyos-mirrorlist-18-1-any.pkg.tar.zst'
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```
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Add the following custom repository section to `/etc/pacman.conf`.
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```
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# cachyos repos
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[cachyos]
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Include = /etc/pacman.d/cachyos-mirrorlist
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```
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#### Installing the Kernel and Schedulers
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```
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$ sudo pacman -Sy cachyos/linux-sched-ext cachyos/linux-sched-ext-headers cachyos/scx-scheds
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```
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2024-04-03 21:18:45 +01:00
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:warning: The kernel installs as `/boot/vmlinuz-linux-sched-ext` along with
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the matching initramfs. Update the bootloader configuration to add the boot
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entry for the new kernel.
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2024-04-03 20:31:14 +01:00
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#### Setting Up Dev Environment
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In addition to the packages from the previous step, install the following.
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```
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$ sudo pacman -Sy meson cargo bpf pahole
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```
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## Fedora
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Experimental sched_ext support for Fedora is provided by the following
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copr project:
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https://copr.fedorainfracloud.org/coprs/jordalgo/fedora-6.8-sched_ext/
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#### Installing the Kernel
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```
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$ sudo dnf copr enable jordalgo/fedora-6.8-sched_ext
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$ sudo dnf --disablerepo="*" --enablerepo="copr:copr.fedorainfracloud.org:jordalgo:fedora-6.8-sched_ext" upgrade kernel
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$ sudo reboot
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```
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Then select the kernel containing the name "schedext".
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#### Installing the Schedulers
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At the moment, only the Rust schedulers are available for install (c schedulers coming soon):
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- scx_rusty
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- scx_layered
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- scx_rustland
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Example:
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```
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$ sudo dnf install scx_rusty
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$ sudo scx_rusty
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```
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#### Setting up Dev Environment
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No additional steps needed here other than what is mentioned in the main README.md.
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