scxctl

scxctl is a cli interface for interacting with scx_loader.

Features

• Get the current scheduler and mode
• List all available schedulers
• Start a scheduler in a given mode, or with given arguments
• Switch between schedulers and modes
• Stop the running scheduler

Installation

Arch Linux

scxctl is available on the AUR as scxctl

Other Distros

scxctl can be installed from crates.io through cargo

cargo install scxctl

Usage

$ scxctl --help
Usage: scxctl <COMMAND>

Commands:
  get     Get the current scheduler and mode
  list    List all supported schedulers
  start   Start a scheduler in a mode or with arguments
  switch  Switch schedulers or modes, optionally with arguments
  stop    Stop the current scheduler
  help    Print this message or the help of the given subcommand(s)

Options:
  -h, --help     Print help
  -V, --version  Print version

$ scxctl start --help
Start a scheduler in a mode or with arguments

Usage: scxctl start [OPTIONS] --sched <SCHED>

Options:
  -s, --sched <SCHED>  Scheduler to start
  -m, --mode <MODE>    Mode to start in [default: auto] [possible values: auto, gaming, powersave, lowlatency, server]
  -a, --args <ARGS>    Arguments to run scheduler with
  -h, --help           Print help

$ scxctl switch --help
Switch schedulers or modes, optionally with arguments

Usage: scxctl switch [OPTIONS]

Options:
  -s, --sched <SCHED>  Scheduler to switch to
  -m, --mode <MODE>    Mode to switch to [possible values: auto, gaming, powersave, lowlatency, server]
  -a, --args <ARGS>    Arguments to run scheduler with
  -h, --help           Print help

Examples:

Start bpfland in auto mode

scxctl start -s bpfland

Switch to gaming mode

scxctl switch -m gaming

Switch to lavd with verbose and performance flags

scxctl switch -s lavd -a="-v,--performance"